Zhuravlinyi Log Deposit Research Articles

Colloid-Chemical Properties of Suspensions of Kaolin from the Zhuravlinyi Log Deposit

Colloid-Chemical Properties of Suspensions of Kaolin from the Zhuravlinyi Log Deposit

Nature of the liquefaction and fluidity of kaolin from the Zhuravlinyi Log deposit (Review)

Studies of the nature of the most effective methods of regulating the liquefaction and fluidity of kaolin from the Zhuravlinyi Log deposit are reviewed. Data on the material, mineral, and microaggregate compositions of different types of kaolin as well as the particulars of the morphology and crystal-chemical properties of kaolinite are presented. It is shown that kaolin microaggregates consist of a mixture of kaolinite of different sizes — from large to small with average degree of ordering, right up to ultrafine and x-ray amorphous.

The Zhuravlinyi Log eluvial kaolin deposit, Chelyabinsk District, Russia

The Zhuravlinyi Log deposit is located 12 km southeast of Plast City. The deposit was initially prospected in 1951 and 1952 under the supervision of V.G. Lyulicheva. The prospecting revealed the presence of kaolin of quality surpassing the raw material in the Eleninsk and Kyshtym deposits. Although a positive assessment was given, new prospecting and appraisal works were carried out under the supervision of V.I. Kakorin in the vicinity of the previously discovered deposit in 1985 taking into consideration recommendations given by the VNIIgeolnerud (renamed TsNIIgeolnerud) Federal State Unitary Enterprise. The results revealed several separate white and pale kaolin deposits. Exploitation of the deposit was started even before its exploration. Construction of the Plast-Rifey dressing plant was completed during the exploitation of the central ore body. Follow-up exploration of the deposit completed in 2006 confirmed that the dry kaolin equivalent reserves of categories B + C1 according to the Russian classification (approximately corresponding to the measured + indicated reserve in the western classification) and category C2 (approximately corresponding to the inferred reserve) are estimated at 11.05 and 5.55 Mt, respectively. The Zhuravlinyi Log deposit is a major supplier of kaolin products fitting the standards of paper, fine ceramics, fiberglass, chemical reagents, and others. The present paper based on the exploration data attempts to show specific features of the geological setting of this deposit, as well as the mineral composition and properties of kaolin therein.

Influence of the size effect on crystallomorphological properties of kaolinite (Zhuravlinyi Log deposit, Southern Urals): Evidence from electron microscopy and EPR

Influence of the size effect on crystallomorphological properties of kaolinite (Zhuravlinyi Log deposit, Southern Urals): Evidence from electron microscopy and EPR

Enrichability of quartz from the Zhuravlinyi Log Kaolin deposit

The composition of mineral inclusions in quartz sand of wastes from kaolin production at “Plast-Rifei,” operating at the Zhuravlinyi Log deposit, is studied. Different technological operations for enriching this raw material are tested. It is shown that the use of different technological operations for enriching wastes and using them to develop high-purity quartz concentrates suitable for the fabrication of glass is an effective procedure.

Kaolin-containing products from the Zhuravlinyi log deposit

Enriched kaolin from the Zuravlinyi Log deposit is finding wide application in the production of various ceramic articles. “Plast-Rifei” JSC is using this kaolin as a base for producing chamotte suitable for the production of sanitary-technical wares and other articles, including ones with large and complex shapes.

Multidimensional colorimeteric gradation of kaolin

The boundaries of the region corresponding to kaolin samples from the Zhuravlinyi Log deposit in the MKO L*A*B* colorimetric system are determined. It is shown that a discriminant analysis makes it possible to interpret the color formation processes in kaolin after it has been worked at different temperatures as well as to evaluate the contribution of variables—color coordinates—in the dominant processes in each heat-treatment interval. A procedure is proposed for identifying the latent (hidden) component of the coloring power of iron compounds in the kaolin. Multidimensional gradation of kaolin samples with respect to whiteness and yellowness according to quality categories is performed.

Iron in the kaolinites from kaolin and bauxite weathering crusts after granites: EPR data

Kaolinite is an economically important clay mineral. It is proposed to use electron paramagnetic resonance (EPR) in order to estimate the quality of kaolin concentrate while studying deposits [1]. This is related to the fact that most EPR signals of kaolinite are ascribed to Fe 3+ ions. Some of them occur as an isomorphic impurity in the mineral structure, while others are incorporated in various micro- and nanoinclusions. The iron admixture significantly affects the physical, chemical, and, of particular importance, technological properties of kaolins. One of the main kaolin sources is weathering crusts, whose formation is accompanied by structural, morphological, and chemical transformations of kaolinite [2, 3]. However, the reasons for its transformation in the weathering profiles of different mineralogical-genetic types and ages remain insufficiently studied. In this work, we present the results of EPR study of kaolinites from the Zhuravlinyi Log (South Urals) and Chaimat (South Vietnam) deposits, which are confined to the weathering crusts after compositionally similar leucocratic granites. The weathering crust of the Zhuravlinyi Log deposit is made up of one kaolin zone up to 40 m thick with a subzone of 10 m and more of alkali kaolins in its lower part. The eluvial kaolin is overlain by the Miocene clays of the Svetloe Formation. The weathering crust at the Chaimat deposit consists of two zones: the lower 10- to 16-m-thick kaolin zone and laterite bauxites in the upper 1‐4 m. The ages of the weathering crusts are respectively, Cretaceous and Middle Miocene. Samples for study were taken from the lower, middle, and upper horizons of the kaolin zones of the considered objects, as well as from laterite bauxites of the Chaimat deposit. Samples were collected through intervals along borehole 2005 at the Zhuravlinyi Log deposit and the section of the Chaimat deposit (Fig. 1). EPR spectra of clay fractions (<63 µ m) of the studied kaolinite samples were recorded on a compact PS-100 radiospectrometer in the X-range at room temperature.

Kaolins and sericities of the Plast kaolin-bearing region, Chelyabinsk district

Necessity to increase economic reserves of kaolin in the Russian Federation stimulated us to examine perspectives of the Plast kaolin-bearing region in the southern Urals located 80 km south of Chelyabinsk. This region includes occurrences and differently explored eluvial kaolin deposits, including the largest currently mined Zhuravlinyi Log deposit. The sericite-bearing kaolin and sericitite are considered a potential source of fine-flaky light mica. It is expected that specialized geological exploration will expand mineral resources of kaolin in the Chelyabinsk district and the Ural federal region as a whole.

The present and future of kaolins from the Zhuravlinyi Log deposit

The properties of kaolinites from the Zhuravlinyi Log deposit and the trends toward increasing production of concentrated kaolins from this deposit at Plast-Rifei Co. are reported The possibility of manufacturing quartz-feldspar concentrates based on the alkaline kaolins in this deposit at Plast-Rifei Co. is examined.

Kaolin from Zhuravlinyi Log Deposit for Ceramic Production

A kaolin concentrate is proposed for various sectors of the industry, including the ceramic sector. The company takes extensive measures to stabilize the technological properties of kaolin concentrates.

Nontraditional Raw Materials in the Production of Aluminosilicate Ceramics

Promising nontraditional raw materials for aluminosilicate ceramics are considered: porcelain stones, in particular, quartz-sericite porcelain stone, kaolin from the Zhuravlinyi Log deposit, and complex additives represented by magnesium-bearing minerals (talc, marble, diopside, dolomite).

Concentrated kaolin from the Zhuravlinyi Log deposit for ceramic production

It is demonstrated that the method of dry concentration of kaolin from the Zhuravlinyi Log deposit implemented at the Plast-Rifei Company makes it possible to separate kaolin products of different degrees of dispersion and by mixing them in a certain ratio to control the dispersion, the quality, and the ceramic properties of concentrated kaolin, taking into account the requirements of a particular ceramic production.

Possibilities of Concentrating Kaolin from the Zhuravlinyi Log Deposit

The possibility of using kaolin from the Zhuravlinyi Log deposit, which has a great potential with respect to material quality and amount of resources, as a source of non-traditional material is considered. Compositions of obtained ceramic mixtures are indicated.

Use of kaolin from the zhuravlinyi log deposit in the production of high-voltage insulators

The use of concentrated kaolin from the Zhuravlinyi Log deposit instead of Prosyanovskii kaolin in the production of high-voltage insulators is investigated. The resulting products have better mechanical and electrophysical parameters.