Abstract
The analysis of refractory materials and factors groups destruction types causing these destructions during operation of refractory materials is presented. One of the reasons preventing further increase of refractory resistance is shown to be natural barrier of impurities presence in natural raw materials for refractory production. Disclosed is a method for natural and/or man-made raw materials deeper enrichment by hydrochemical processing methods. This work is devoted to the chemical synthesis of raw materials enrichment for the production of refractory materials with increased resistance. The studies were carried out with the aim of developing a technology for producing high-purity aluminum powders with high physical and mechanical properties using raw materials from the Ural field and metakaolinite to produce high-purity alumina from aluminum sulfate. Thus, the authors tested the technology of complex processing of industrial and/or natural aluminosilicate materials waste using an extractable leaching solution of sulfuric acid - an ammonium hydrosulfate solution.
Highlights
The refractory materials production technology always develops together with the technologies’ development of metallurgical processes
Increasing requirements for metallurgical processes, both in terms of production intensity and metal quality, leads to increasing requirements for refractory materials and linings resistance in general [1,2,3], which are estimated by reducing the refractory per unit specific consumption of produced product
3) compliance with the thermal unit standard operating mode; 4) refractory material thermal energy density (characterizes energy density in one cm3 of crystalline phase taking into account its melting temperature,/cm3); 5) impurities composition and quantity in the refractory forming with aggressive chemical factor low-melting compounds and melts with low viscosity at the thermal unit working temperatures
Summary
The refractory materials production technology always develops together with the technologies’ development of metallurgical processes. Increasing requirements for metallurgical processes, both in terms of production intensity and metal quality, leads to increasing requirements for refractory materials and linings resistance in general [1,2,3], which are estimated by reducing the refractory per unit specific consumption of produced product.
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