S. Temirova
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View article: Structural, Sorption, and Regeneration Properties of Poly(methacrylic acid): Poly(4-vinylpyridine) Interpolymer Systems for the Recovery of Rhenium and Molybdenum
Structural, Sorption, and Regeneration Properties of Poly(methacrylic acid): Poly(4-vinylpyridine) Interpolymer Systems for the Recovery of Rhenium and Molybdenum Open
The sorption, structural, and thermal properties of the interpolymer system based on polymethacrylic acid (PMAA) and poly-4-vinylpyridine (P4VP) were studied at different component ratios for the extraction of rhenium (ReO4−) and molybdenu…
View article: Removal of Hexavalent Chromium Ions from Industrial Effluents Using Natural and Modified Diatomite, Taurite, Lewatit M500, and Activated Carbon
Removal of Hexavalent Chromium Ions from Industrial Effluents Using Natural and Modified Diatomite, Taurite, Lewatit M500, and Activated Carbon Open
Hexavalent chromium Cr (VI) compounds present in ilmenite concentrate not only pose significant environmental hazards due to their toxicity but also complicate further processing, interfering with technological operations in industrial pro…
View article: The use of diatomites in industrial production technologies
The use of diatomites in industrial production technologies Open
General information on the distribution and reserves of diatomites in the world and Kazakhstan is presented, and their physical and chemical properties and applications are described. Diatomites have several valuable properties: high poros…
View article: Wastewater treatment from hydrogen sulphide using iron-containing coagulant
Wastewater treatment from hydrogen sulphide using iron-containing coagulant Open
The increase of sulphate content in natural water sources due to anthropogenic causes leads to a corresponding increase of sulphate and sulphide concentrations in wastewater. Biochemical reactions occurring in sewage systems of sulphate re…
View article: Removal of hexavalent chromium from aqueous solutions by sorption with activated carbon. Review
Removal of hexavalent chromium from aqueous solutions by sorption with activated carbon. Review Open
The article considers sources of hexavalent chromium in the environment, its toxicity, methods of removal, main adsorbents used for Cr(VI) removal, obtaining of carbon sorbents using different raw materials. The interpretation of the mecha…
View article: Experimental Manufacturing of Ferromanganese Alloy from Man-Made Manganese-Containing Wastes
Experimental Manufacturing of Ferromanganese Alloy from Man-Made Manganese-Containing Wastes Open
The results of experiments on manganese pellets based on beneficiated manganese-containing sludge and the melting of ferromanganese alloy with their use are presented. Via beneficiating manganese-containing sludge (16.32% Mn), a concentrat…
View article: Preparation of pellets from manganese concentrate for the production of ferromanganese
Preparation of pellets from manganese concentrate for the production of ferromanganese Open
The results of studies on the production of pellets for the metallurgical stage based on manganese concentrate with a manganese content of 34 %, obtained from waste manganese-containing sludge, are presented. Kaolin and highiron diatomite …
View article: Processing of low-quality manganese-containing raw materials to obtain pellets for production ferromanganese alloys. Review
Processing of low-quality manganese-containing raw materials to obtain pellets for production ferromanganese alloys. Review Open
Substandard ores and technogenic wastes can be considered as an additional source of raw materials due to the limited resources of mineral raw materials with a high content of manganese. The article presents an overview of studies intended…
View article: A study on the beneficiation ability of manganese-containing technogenic raw materials
A study on the beneficiation ability of manganese-containing technogenic raw materials Open
The work presents the results of studies on obtaining ferromanganese concentrate from technogenic manganesecontaining raw materials with grain size less than 10 mm. It is found that the main valuable minerals of the feedstock are psilomela…
View article: On the possibility to obtain manganese concentrate from manganese-containing tailings
On the possibility to obtain manganese concentrate from manganese-containing tailings Open
The paper presents the results of studies intended to separate minerals by density in a heavy liquid. Chemical analysis found that the manganese content amounts to 16,32 % in the studied sludge sample. Manganese sludge was separated by spe…
View article: Synthesis of sodium ferrite and differential thermal analysis of charge for its production
Synthesis of sodium ferrite and differential thermal analysis of charge for its production Open
The article presents a review of scientific works related to the research of methods intended to obtain iron-containing reagents, and their properties for the dissolved hydrogen sulfide neutralization in wastewater. It is summarized that s…
View article: Obtaining of strong chromium pellets with the use of a ferrosilicon-calcium binder
Obtaining of strong chromium pellets with the use of a ferrosilicon-calcium binder Open
The article presents the results of research on the synthesis of strong chrome pellets based on concentrates obtained by enrichment of chrome sludge. To obtain strong fired pellets from the concentrates, it is proposed to use a ferrosilico…
View article: Processing and production of pellets from poor-grade manganese-containing raw materials
Processing and production of pellets from poor-grade manganese-containing raw materials Open
there is a review of current researches in the processing of poor-grade manganese raw materials. The variety of manganese minerals caused by the valent state of metal in compounds is demonstrated. Different processing methods for manganese…
View article: Complex Alumina‐Ferrous Coagulant for Effective Wastewater Purification from Hydrogen Sulfide
Complex Alumina‐Ferrous Coagulant for Effective Wastewater Purification from Hydrogen Sulfide Open
The article provides an overview of studies on the causes of the formation of hydrogen sulfide in anaerobic conditions of urban sewage systems and methods for neutralizing toxic reagent sulfur‐containing compounds. It is noted that the pre…
View article: Promising ways to increase raw material base of the chrome industry of the metallurgical industry of the Kazakhstan
Promising ways to increase raw material base of the chrome industry of the metallurgical industry of the Kazakhstan Open
Various lumping technologies of finely dispersed chromite concentrates using charge roasting processes have been considered. In this respect, it was noted that the charge formulation used in the production does not provide the required str…
View article: Processing of low quality ekibastuz coals ashes and natural diatomites to obtain alumina and foamed glass
Processing of low quality ekibastuz coals ashes and natural diatomites to obtain alumina and foamed glass Open
Analysis of technological solutions on complex processing Ekibastuz coals ashes displays efficiency of complex alkaline technologies. However their significant drawback is the necessity to utilize big volumes of alkaline-silicic solutions.…
View article: CHALLENGES OF TECHNICAL SCIENCES IN KAZAKHSTAN
CHALLENGES OF TECHNICAL SCIENCES IN KAZAKHSTAN Open
The article raises the question of building up competence of industrial enterprises management in Kazakhstan and existing myths that often impede making reasonable administrative decisions. Most problems of engineering sciences stem from t…
View article: Composition and properties of Kazakhstani diatomaceous minerals and synthesis on their base calcium silicates for building production
Composition and properties of Kazakhstani diatomaceous minerals and synthesis on their base calcium silicates for building production Open
The review covers existing modern technologies and researches on applying diatomaceous minerals as silicate additives to building materials. Specialists of industrially developed countries actively work in this direction and there are some…