Metal Processing Research Articles

RECYCLING OF BRONZE WASTE IN MACHINE-BUILDING INDUSTRY

The use of secondary metals is of crucial importance, since the costs of involving metal waste into circulation are significantly less than for smelting primary metal from ore. Recycling of non-ferrous metal scrap, including bronze, is especially relevant due to the high cost of raw materials. All the methods of scrap metal processing used today are very energy-intensive, so the search for new technologies is relevant. (Research purpose) The research purpose is studying modern methods of processing waste of non-ferrous metals and alloys in machine-building industries, identifying problems and disadvantages of such methods; proving the expediency of the use of electroerosive dispersion in the recycling of scrap metal. (Materials and methods) Used an integrated approach, which included the analysis of literary and patent sources, scientific papers. The research was carried out on laboratory equipment of the FNAC VIM Nano-Center. (Results and discussion) We studied various methods of processing machine-building waste of non-ferrous metals and alloys, identified the disadvantages of these methods, and proposed an electroerosive dispersion method as a promising one. It was determined that in modern repair production, welding and surfacing processes are used in more than 60 percent of cases to restore the operability of worn parts. Surfacing allows alloying, controlling the hardness and microstructure of the deposited layer. Powder materials for the technologies of restoration and hardening of parts are economically more profitable, since the manufacture of wire or rods from hard and brittle materials requires expensive special methods. (Conclusions) Recycling of metal waste, especially non-ferrous metals and alloys, gives a tangible economic effect for the economy. The use of new promising technologies helps to reduce the energy intensity of recycling processes.

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review.

Corrosion inhibitors represent one of the most commonly used methods for significantly reducing the corrosion rate of metals and alloys. Adsorption inhibitors have a wide range of applications in cooling water systems, deicing solutions for aircrafts, airports and ways, etching and degreasing solutions, oil pipelines, paints and coatings and metal processing solutions. Adsorption corrosion inhibitors of metals and alloys are generally organic compounds that contain structures with heteroatoms (N, P, S, As, O) in their molecules, having lone pair electrons or π electrons in aromatic rings or multiple bonds. They enable relatively strong interactions between the metal atoms and organic molecules, resulting in a protective layer of organic molecules adsorbed at the metal-corrosive solution interface. Most molecules of active substances from drugs contain similar structures, which is why many drugs have been already tested as corrosion inhibitors. One of the major disadvantages of using drugs for this purpose is their particularly high price. To overcome this impediment, the possibility of using expired drugs as corrosion inhibitors has been investigated since 2009. The present paper is an exhaustive compilation of the scientific published papers devoted to the use of expired drugs as corrosion inhibitors in various aggressive solutions. The inhibitory efficiencies of expired drugs are presented as a function of the studied metal or alloy and the nature of the aggressive solution, as well as the concentration of the inhibitor in such a solution. Research has especially been focused on mild and carbon steel and less on stainless steel, as well as on some metals such as copper, zinc, nickel, tin and aluminum and its alloys. The experimental methods used to assess the inhibitory efficiencies of expired drugs are briefly discussed. Also, the available information on the stability of the active substances in the drugs is presented, although most authors were not concerned with this aspect. Finally, several actions are revealed that must be undertaken by researchers so that the results obtained in the study of the anticorrosive action of expired drugs can be applied at the industrial level and not remain only an academic concern.

About the problems and results of obtaining products from technical ceramics for metallurgical production. Message 2

The article presents the results of research in the field of synthesis of multifunctional ceramic materials for metallurgical, machine‑tool and other industries related to the processing of metals, their alloys and products from them; current trends and trends associated with the production of products from such materials; provides information on expanding the domestic raw material base for the production of ceramics with the involvement of domestic enterprises, and also, the prospects for the development of industrial potential for the organization of the production of such products.

Inventory as a Financial Instrument: Evidence from China’s Metal Industries

Classic inventory theory suggests that inventory plays a vital role in matching demand and supply. This paper provides both country- and firm-level evidence that inventory can be used as a financial instrument to take advantage of arbitrage opportunities in financial markets with limited capital mobility. Using data from China customs’ metal imports and firm-level inventory from metal processing industries, we show that firms can utilize the inventory of an imported product to carry lower cost capital into a country with strict capital controls and, thus, gain higher financial returns. Specifically, at the country level, we find that the level of imported metal commodities is positively associated with the expected returns from financial arbitrage. At the firm level, we find that a higher expected return from financial arbitrage will incentivize a firm to increase its inventory level through short-term borrowing. In addition, our evidence supports the notion that firms with higher liquidation value, larger size, and higher sales growth (i.e., firms with higher borrowing capacity) may be more active in using inventory as an instrument to seek higher financial gains. We also utilize a unique regulatory policy shock as a quasi-natural experiment to enhance the causality interpretation of our empirical findings. This paper was accepted by Vishal Gaur, operations management. Funding: This work was supported in part by the National Natural Science Foundation of China [Grant 72201230] and the Research Grants Council of Hong Kong, University Grants Committee [Grant 14504621]. Supplemental Material: The online appendix and data are available at https://doi.org/10.1287/mnsc.2023.4873 .

Microwave sintering of ZrB2-based ceramics: A review

Recently, microwave sintering has absorbed remarkable attention on the basis of enhanced microstructural/mechanical characteristics in comparison with conventional sintering techniques based on powder technology. This method not only can be employed for the processing of metals, alloys, and metal matrix composites but also for the manufacturing of advanced ceramics and ceramic matrix composites. Zirconium diboride (ZrB2) as an interesting member of ultrahigh temperature ceramics is one of the most undertaking candidates in modern structural ceramics applications. This paper reviews the processing-densification-mechanical properties correlations in microwave-sintered ZrB2-based ceramics and composites. The text concentrates on the microwave-assisted production of ZrB2 divided into two categories: synthesis of ZrB2 powders by microwave sintering and sintering of ZrB2-based ceramics and composites by microwave sintering. The effects of some additives and reinforcements, such as B4C, SiC, TiC, and MgO, on zirconium diboride's densification and mechanical properties are summarized.

Prospects for replacing production lines in the shipyards workshops with multifunctional assembly and welding manipulators

Some aspects for improving the technical level and flexibility of assembly and welding production of domestic shipyards are discussed in the paper. It is noted that a number of shipyards have integrated mechanized production lines of foreign manufacturers: for metal processing, manufacture of ship hull structures, their painting, etc. As a rule, such lines are equipped with high-performance technological equipment; however, they are ineffective in conditions of small-scale production. The main reason is insufficient line loading. An alternative to such lines can be multi-functional complex mechanized and partially automated assembly and welding manipulators, which are a flexible production module equipped with an assembly and welding portal (or semi-portal) and a set of replaceable mounted assembly and welding equipment. The research purpose is an increase in the technical level and flexibility of assembly and welding production of domestic shipbuilding enterprises in the short term by replacing resource-producing and inefficient due to insufficient loading of mechanized production lines of foreign production with import-substituted multifunctional complex-mechanized assembly and welding manipulators. The subject of the research is a flexibly reconfigurable production system of a shipyard. Mechanized production lines of assembly and welding production and complex mechanized assembly and welding manipulators are accepted as objects of research. As a result of the research, the functionality of assembly and welding manipulators for the assembly of ship hull structures and a set of factors influencing the choice of their design schemes are determined. It is concluded that due to the extreme urgency of the issue considered in the paper, it is necessary to conduct a set of special studies on the theoretical justification of replacing inefficient mechanized production lines with complex mechanized multifunctional assembly and welding manipulators, and a range of priority tasks to achieve this goal is defined.

Design of Z Profile Roller Tooling and Research on Roller Clearance

In metal processing, bending forming is widely applied in various fields. To prevent excessive surface scratching and heavy indentation on the profiles, which can negatively affect the surface quality, it is often necessary to determine the clearances between the rollers and the upper and lower surfaces of the profiles using experimental methods. However, this experimental approach not only results in material waste but also fails to determine the optimal clearance value. Therefore, orthogonal experiments were conducted to design different clearances between the rollers and the upper and lower surfaces of the profiles to mitigate the issues of excessive surface scratching and poor surface quality during the bending forming process of large-section Z-profiles. Finite element simulation was employed to simulate the different experiments, and a range analysis was performed on the experimental results to obtain the optimal clearance value. The obtained results fall within the range of results obtained from traditional experimental methods, indicating its consistency with actual practice, higher accuracy, and scientific rigor compared with experimental methods. Furthermore, the roller tooling design was revised based on the optimal clearance value for the profile processing. The experimental results demonstrate that the surface quality of the profiles processed with optimal clearance is superior to those processed without it. Additionally, this study presents a comprehensive methodology for roller tooling design and investigates the influence of different loading modes on the local wrinkling deformation of the profiles.

Deep eutectic solvents interaction with asphaltenes: A combined experimental and molecular dynamics study

Deep eutectic solvents (DESs) are industrially promising solvents and posses numerous applications in wide areas such as metal processing, synthesis media, synthesis of nanoparticles, gas sequestration and many more. In this work, we synthesized and investigated the performance of three deep eutectic solvents (DESs) i.e., reline, glyceline and ethaline in the separation of pure asphaltene from organic solvents, i.e., toluene and n-heptane using experimental techniques and classical molecular dynamics (MD) simulations. The DESs are prepared and characterized by Fourier transform infrared (FTIR) spectroscopy and density meter analysis. The separation and aggregation of asphaltene from the organic solvent phase into the DES phase at various DES concentrations are visually observed using optical microscopy. MD simulations are used to probe the end-to-end distance and diffusion coefficient of the asphaltene molecules in DESs-organic solvent mixtures. Further, the trajectory density contours of asphaltene in three DESs-toluene/n-heptane systems are calculated to analyze asphaltene aggregation in the presence of the DESs. Our experimental-simulations synergistic study shows the superior performance of glyceline DES in toluene and reline DES in n-heptane for efficient separation of the asphaltene.

Recent Developments in Two-Dimensional Materials-Based Membranes for Oil-Water Separation.

The industrialization witnessed in the last century has resulted in an unprecedented increase in water pollution. In particular, the water pollution induced by oil contaminants from oil spill accidents, as well as discharges from pharmaceutical, oil/gas, and metal processing industries, have raised concerns due to their potential to pose irreversible threats to the ecosystems. Therefore, the effective treating of these large volumes of oily wastewater is an inevitable challenge to address. Separating oil-water mixtures by membranes has been an attractive technology due to the high oil removal efficiency and low energy consumption. However, conventional oil-water separation membranes may not meet the complex requirements for the sustainable treatment of wastewater due to their relatively shorter life cycle, lower chemical and thermal stability, and permeability/selectivity trade-off. Recent advancements in two-dimensional (2D) materials have provided opportunities to address these challenges. In this article, we provide a brief review of the most recent advancements in oil-water separation membranes modified with 2D materials, with a focus on MXenes, graphenes, metal-organic frameworks, and covalent organic frameworks. The review briefly covers the backgrounds, concepts, fabrication methods, and the most recent representative studies. Finally, the review concludes by describing the challenges and future research directions.

Urinary concentrations of heavy metals in pregnant women living near a petrochemical area according to the industrial activity

BackgroundThe progressive industrialization has resulted in an increase in heavy metal pollution in the environment, which has a dangerous impact on human health. Prenatal exposure to heavy metals, even at very low concentrations, may be especially harmful to pregnant women and their children. Different industrial activities can contribute to heavy metal pollution in a specific area. Objective1) To explore the concentrations of heavy metals in urine samples of pregnant women, and 2) to evaluate the potential effect of different industrial activities in Tarragona (Spain). MethodsUrinary levels of four heavy metals (nickel (Ni), cadmium (Cd), mercury (Hg), and lead (Pb)) from 368 pregnant women recruited in the ECLIPSES study were analyzed. Home addresses and all the industries potentially releasing heavy metals were geo-referenced. Buffer zones were established within a 1.5, 3, and 5 km radius at the center of each industry. Subsequently, the number of participants living in and out of each buffer zone was recorded. ResultsUrinary levels of Ni and Cd, but not those of Hg and Pb, were obviously increased in pregnant women living near most of the industrial sites. After adjustment for potential co-variates, only Cd showed notable differences according to the industrial activity. Compared to women living outside the buffer, Cd levels were increased in those living within 1.5 and 3 km of chemical industries, within 5 km of energy industries, within 1.5, 3, and 5 km of mineral industries, and within 3 and 5 km of metal processing industries. ConclusionAmong the analyzed heavy metals, Cd showed an increasing trend in urinary concentrations in women living near chemical, energy, mineral, and metal processing industries. This study highlights the need to develop legislative measures to minimize Cd exposure, especially by sensitive populations. Moreover, additive or synergistic effects of co-exposure to other air pollutants should not be disregarded.

Key trends in the development of the world machine tool industry

The possibilities of implementing of elements of cyber-physical systems with different methods of metal processing and their general trends are considered. Combining such aspects as "big data", "artificial intelligence", "computer vision", "machine learning", "Internet of things", "neurotechnologies", "blockchain" into a cyber-physical system will provide a new level of effectiveness of interaction between a person and technological equipment, improving the safety of its operation and productivity. Keywords: metalworking, mechanical engineering, cyber-physical system, digital twin, Industry 4.0 concept. aa.kutin@stankin.ru, klyuevmikhail@gmail.com, kravchenko.niitp@gmail.com, asaev_a_s@mail.ru, n.averin@365.rsu.edu.ru

Analisis Beban Kerja dan Jumlah Pekerja Menggunakan Metode Workload Analysis (Studi Kasus: PT. Metal Stamping)

PT. Metal Stamping is a company engaged in Metal Processing that produces motorcycle parts, filters & radiator parts which in the production process of course use the power of the workers. This can cause an overload of workload experienced by production operators in the Production Department 2. In an effort to solve this problem in this study using the Workload Analysis method, namely with the aim of being able to find out the amount of physical workload experienced by the operator and analyze the optimal number of production operators in the AIDA 250, AIDA 2500, Komatsu 2000 and AIDA 15 machines in the Production Department 2 section. The results showed that there was still an excess workload experienced by operators where the highest physical workload was experienced by operators working on AIDA 15 machines by 118.11%. With the results showing that there is still an excess physical workload experienced by the operators, it is estimated that it is necessary to hold overtime hours for operators because the excess workload is not too large and is considered to be still manageable in the presence of overtime hours.

A research of the effect of an underwater electric explosion on the selectivity of destruction of quartz raw materials

The work is devoted to the study of the effect of an electric explosion on the selectivity of the destruction of quartz raw materials. The object of the study is quartz ore of the Nadyrbay deposit of the Republic of Kazakhstan. An electrohydroimpulse plant for crushing and grinding quartz raw materials has been developed and assembled. Using the electrohydroimpulse method, the granulometric composition of quartz can be adjusted. This makes it possible to adjust the magnitude of the voltage in the discharge channel and time. In this technology, quartz ore processing was carried out with an increase in the discharge voltage of the storage from 14 kV to 25 kV, the length of the interelectrode distance from 8 to 12, the capacitance of the capacitor 0.5 µF, 0.75 µF and the processing time of 5 min. Using the electrohydroimpulse method, quartz ore particles with an initial fraction of 5 mm, 10 mm and 1 mm were crushed to 0.8. The results of the grinding of quartz raw materials with the influence of an underwater electric explosion in a liquid medium allowed us to determine the degree of grinding of the material. The obtained results can be used in the course of studying the characteristics of crushing and grinding of ores. In the food industry, quartz sand within 0.25–0.5 millimeters can be used as a filler to create filters for water purification, as well as products from oil, industrial effluents, etc. Particles ranging in size from 0.5 to 1 millimeter can be used for rough processing of metal, stone and glass. The structural and quantitative analysis of powdered quartzite samples was made using a scanning electron microscope and the stoichiometry of the elements was calculated

Application of refractory materials for steel ladles

The article analyzes the service life of refractories and various options for combined lining of steel ladles used in steelmaking shops with out-of-furnace steel processing departments, and identifies the main trends in its development. The use of various types of lining is analyzed based on the experience of Japan, Germany, Austria, and France. The technological conditions of operation of steel ladles with the main lining are considered. Under operating conditions, the lining areas near the slag belt and the place where the jet hits the bottom of the ladle are subject to the greatest destruction, so it is advisable to install high-quality refractories in these areas. In addition, the reasons for the insufficient stability of refractories are identified, including decarburization, corrosion, ladle slag formed during out-of-furnace metal processing, the use of synthetic additives to slag, high thermal conductivity of refractory materials during operation, and others. Ways to increase the service life of steel ladles are identified. It is shown that the world practice is characterized by the use and intensive improvement of the main lining of steel ladles through the use of new materials with increased refractory and operational characteristics. The experience of refractory improvement by Shinagawa Refractories, TYK Corp, Plibrico, Nippon Steel, Krosaki Harima, and IPSCO Steel, including practical testing at production, is presented. It is established that the high cost of consumables and increased requirements for manufacturing technology hinder the massive introduction of the developed technologies at metallurgical enterprises

Металлургический «завод» раннего железного века в Уральских горах

The authors describe the westernmost metallurgical center of the 5th—2nd centuries BC left by the aboriginal Itkul’ culture of the forest Trans-Urals in 8th/7th—3rd/2 nd centuries BC. It was founded in the upper reaches of the Ufa river, in Serny Klyuch tract, on top of a high (20—25 m) limestone rock with three steep edges, on the ruins of sites and settlements of the Eneolithic and Bronze Age. After the construction of the first copper-smelting complexes, the site of the settlement from the floor side was fenced with a log defensive wall with an external moat 40—42 m long. The ancient settlement is miniature, with an area of about 1,000 sq. m. Two excavations (502 sq. m) explored half of the site and 26 m of the fortification line. The remains of 19 adobe blast furnaces, three adobe platforms for metal processing, several pits and fireplaces for melting metal, three industrial and residential buildings of a frame-and-pillar structure were uncovered. In addition to the clan of metallurgists of the aboriginal Itkul’ culture, the population of the settlement included small groups of newcomers: initially, the descendants of the taiga communities of the Gamayun culture, who migrated from the north, from the upper reaches of the Iset’ river, later — the bearers of the Gorokhovo culture, who fled from the Tobol region and the lower reaches of the Iset’ river under the pressure of the warlike Sargat tribes, the ancient ancestors of the Hungarians who came from the east, from the Ishim-Irtysh forest-steppe. Traces of full cycle metallurgical production were revealed on the site — from copper smelting to casting and forging of finished products. The main part of non-ferrous metal produced by metallurgists of the mountain-forestry Trans-Urals was intended for export to neighboring and more distant territories. A blank of an iron knife-dagger found in one of the furnaces, and a series of Itkul’ iron products found in other places, confirm the hypothesis of the emergence of its own ferrous metallurgy in the forests of the Middle Urals around the 5 th—4 th centuries BC.

Analisis Sifat Mekanik Pada Material Standar Paduan COR ALSi10Mg(b) Dari Skrap Aluminium

The metal industry in Tegal Regency is classified into ferrous and non-ferrous metal industries. The shipping component industry is the leading producer of the non-ferrous metal industry. The problem faced by the non-ferrous metal processing industry, especially the Small and Medium Industry ship components is the availability of standard materials as raw materials at affordable prices. Instead, SMEs use scrap material to reduce selling prices, as a result of which product quality does not meet the required specifications. This research made 2 (two) formulas of AlSi10Mg(b) from an aluminum scrap mixture where AlSi10Mg(b) is one of the standard materials of cast aluminum alloy recognized by Biro Klasifikasi Indonesia (BKI). The study aimed to recommend raw material formulas to SMEs to ship components to make products according to BKI standards. The research began by collecting a database of aluminum scrap composition, then simulating calculations with an Excel program to obtain theoretical chemical composition so that the need for aluminum scrap was produced. The two standard material formulas of AlSi10Mg(b) are made from different main scrap where formula 1 is the piston, and formula 2 is the brake lining with the supporting scrap is the pan, aluminum elbow, and aluminum plate as well as the AlSi49 and AlMg20 master alloys. The simulation results are then cast with the sand-casting method. The cast results are made of specimens testing chemical composition and hardness. The results of the chemical composition test show that both formulas are in accordance with the conditions of AlSi10Mg(b) cast alloy, namely the percentage of Silicon (Si) and Magnesium (Mg) in formula 1 is 9.16% and 0.39% while formula 2 is 10.69% and 0.22%. Both formulas are still with Copper (Cu) content that still exceeds the limit of above 0.1%. The hardness value has met BKI standards above 50HBN.

Application of a neural network for predicting cutting surface quality of punching processes based on tooling parameters

Punching represents one of the most frequently used manufacturing processes in the sheet metal processing industry. Thereby, one of the most important quality criteria for such punching processes constitutes the geometric shape of the cutting surface. High cutting surface qualities are usually characterized by the lowest possible edge draw in, a high clean cut, as well as a small fracture surface and a low burr height. In this respect, conventional punching processes can only produce clean cut proportions (CCP) up to 20-50% of the sheet thickness. By means of the so called “concave punch nose design” developed at the Institute for Metal Forming Technology, the geometry of conventional punches could be optimized in such a way that the clean-cut proportion along the cutting surface is significantly increased. The findings reported about in this paper show that the quality parameters of the sheared component edges thereby show highly nonlinear relationships to the tooling and sheet metal material parameters used. In order to quantify these effects, the data from several numerical punching simulations is used to pretrain an artificial neural network (ANN). Input data for the neural network included features of the punch geometry, the size of the clearance, the sheet thickness and the material data of the semi-finished product. The output of the neural network is precise predictions of the achievable cutting surface quality parameters. The experimentally validated findings presented in this paper show that the process design for novel punching processes such as cutting with concave punch nose design is possible, when using a modern machine learning approach.

Optimized Production of High Purity Sulphuric Acid via Contact Process

Sulphuric acid (H2SO4) is of immense importance to the chemical industry and humanity. The use of Aspen Plus modeling, simulation, and optimization via the contact process has enabled the production of grade sulphuric acid. Notably, the research findings highlight the sensitivity of water flow rate to the maximization of H2SO4 production. Through these methods, a production capacity of around 8 tons per day was achieved, with a purity level of 98.9%. This achievement significantly contributes to meeting the demand for sulphuric acid in various industries. Moreover, exploring alternative sourcing methods, such as utilizing elemental sulphur, offers the potential for further optimizing H2SO4 production. The benefits of improving H2SO4 production extend beyond the chemical industry. Sulphuric acid finds applications in agriculture, petroleum refining, pharmaceuticals, and metal processing. Enhancing the production process ensures a reliable supply for these sectors. In summary, sulphuric acid is indispensable to the chemical industry and humanity at large. Aspen Plus modeling and optimization techniques have successfully improved the production of high-grade sulphuric acid, resulting in increased capacity and purity. Exploring alternative sourcing methods further enhances production possibilities. These advancements have wide-ranging implications, benefiting multiple industries and driving progress in sectors reliant on sulphuric acid.

Towards Balanced Strength and Plasticity in Graphene-Nickel Composites: The Role of Graphene, Bimodal Metal Powder and Processing Conditions

Due to their higher strength and lighter weight compared to conventional metals, graphene-nickel (Gr-Ni) composites have recently gained growing interest for use in the automotive and aerospace industries. Homogeneous Gr dispersion, the metal powder dispersity and processing conditions play a key role in obtaining the desired grain size distribution, an amount of high angle grain boundaries thus reaching the desired balance between strength and plasticity of the composite. Here, we report an approach to fabricating graphene-nickel composites with balanced strength and ductility through the microstructure optimization of the nickel matrix. A graphite platelets (GP) content of 0.1–1 wt.% was used for the optimization of the mechanical properties of the material. In situ, conversion GP-to-Gr was performed during the milling step. This paper discusses the effect of bimodal nano- and micro-sized Ni (nNi and mNi) on the mechanical properties and microstructure of Gr-Ni composites synthesized using a modified powder metallurgy approach. Specimens with varied nNi:mNi ratios were produced by two-step compaction and investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, electron back-scattered diffraction (EBSD) and nanoindentation. The best combination of ultimate tensile strength (UTS), yield limit (YL), elongation and hardness were obtained for 100nNi and 50nNi matrices, and the best composites were those with 0.1% graphene. The addition of more than 0.5 wt.% GP to the nickel matrix induces the fracture mechanism change from tensile to brittle fracture. Dedicated to the 300th anniversary of the St. Petersburg University Foundation.

From waste to wealth: Unlocking the value of copper anode slimes through systematic characterization and pretreatment

Technology, in addition to supply and demand, is driving current advances in mineral processing. Over the past three decades, demand for various minerals has continued to rise, while the mineral processing sector has faced challenges such as the need for more sophisticated ore treatment, lower plant feed quality, and poorer plant performance due to mixing of ores with varying characteristics. Gravity separation has long been a cost-effective method for the mining industry, especially in the processing of precious metals. Copper anode slime contains significant amounts of gold, silver, and platinum group metals. In this study, we tested the functionality of a slime shaking table for recovering precious metal components by recycling barite particles from the copper anode slime. Additionally, we used several characterization methods, including backscattered electron microscopy, energy-dispersive X-ray spectroscopy, optical microscopy, and physical testing, to improve our understanding of the copper anode slime particle phases. This study highlights the challenges associated with recycling and processing secondary materials and demonstrates the complexity of physical separation methods for extracting barite particles from copper anode slime.