TRANSFORMATION OF THE RARE EARTH ELEMENTS  AND IMPURITY ELEMENTS COMBINATIONS IN THE COURSE  OF pH PREGNANT SOLUTION MODIFICATION

Kenzhaliyev, B. К.; Yesimova, D. M.; Surkova, T.Yu.; Soemowidagdo, A.; Amanzholova, L. U.; Egorov, N. B.; Benefication, Almaty Ore

doi:10.32014/2020.2518-170x.35

Cited by 8 publications

(6 citation statements)

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“…At the same time there are some scientific works revealing this direction [Kenzhaliyev B.K., 2019]. For example, the proposed technological scheme of noble metals recovery [Kenzhaliyev B. et al, 2020] provides the use of electroflotation treatment of solutions in the process of their carbon sorption. Researches of electroflotation enrichment processes [Reznik Yu.N.…”

Section: Studies Of Electro-flotation Beneficiation Of Gold-bearing R...mentioning

confidence: 99%

Study of Electroflotation Beneficiation of Low-Sulphide and Refractory Gold-Bearing Raw Materials

Berkinbayeva¹,

Atanova²,

Kenzhaliyev³

et al. 2022

J. Ecol. Eng.

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The paper presents the results of experiments with electroflotation beneficiation of gold-bearing raw materials. Three variants of ore samples with 0.56, 1.2 and 5.9 g/t gold grades, which also have different mineralogical and phase composition, were taken as objects of study. Based on the ionization effects, as well as changes in electrostatic and electrokinetic properties of the flotation pulp components, different electrode locations in the flotation chamber were considered. Experiments have shown that for electroflotation processing of raw materials with weakly acidic and neutral medium, positive electric potential of pulp, as well as raw materials with complex mineralogical composition, the negative electrode (cathode) should be placed at the surface of foaming and concentrate assembly, and the positive electrode (anode) in the pulp flow. For electroflotation of raw materials with neutral, alkaline pH and negative electric potential of the pulp, the anode is placed at the surface of the concentrate formation and the cathode is placed in the pulp flow. Thus, additional electrolytic treatment of mineral slurry in the flotation process can increase the gold recovery in the flotation concentrate by an average of 20-30%.

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Section: Studies Of Electro-flotation Beneficiation Of Gold-bearing R...mentioning

confidence: 99%

Study of Electroflotation Beneficiation of Low-Sulphide and Refractory Gold-Bearing Raw Materials

Berkinbayeva¹,

Atanova²,

Kenzhaliyev³

et al. 2022

J. Ecol. Eng.

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“…Cake Henceforth, studies were conducted on the purification of REE-containing solution from iron. The compounds of iron (III) and REEs are characterized by close chemical properties [12,13,22]. In this regard, the problem of their separation arises.…”

Section: Fig 4 Dependence Of Cake Output On S:l Ratio With Water Lementioning

confidence: 99%

Studies on Valued Components Extraction from Titanium-Magnesium Production Wastes

Almagul¹,

Shah²,

Baltabekova³

2020

ARFMTS

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Based on the results of studies on the extraction of rare-earth elements from exhausted molten titanium chlorinators and the production of carnallite from chloride waste from titanium-magnesium production, the possibility to obtain REE production solution suitable for their separation and synthetic carnallite intended for chlorination of titanium slags is demonstrated. A purified water leaching solution from the exhausted molten titanium chlorinator (EMTC) was obtained to isolate synthetic carnallite with the addition of hydrochloric acid and magnesium electrolysis cell sludge up to pH 6.8-7.6. Physicochemical analysis of EMTC showed that the composition contains rare-earth elements in the form of oxides and water-soluble chlorides. The optimal EMTC water leaching mode was established: S:L ratio = 1:0.7, temperature 20-25 °С, duration-60 min. In this case, a solution was obtained with a concentration of 0.532 g/dm 3 of the sum of rare-earth elements, 122.8 g/dm 3 of iron, pH 0.76. The separation of iron from a chloride solution during precipitation with a solution of potassium hydroxide in the range of pH 2.6-3.1 at a temperature of 80 °C. The precipitation of REEs from the solution with oxalic acid in an amount of 150% of the amount required stoichiometrically in the form of oxalates with a pulp exposure time of oxalates of 4 hours. The precipitate formed from oxalates was washed on the filter with a 2% oxalic acid solution at S:L = 1:8. Obtaining a collective REE concentrate in the processing of exhausted molten titanium chlorinators. The throughout recovery of rare-earth elements from EMTC into collective concentrate was 66%.

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“…Based on the study results, the authors suggest that for the effective commercialization of scientific and technical products, great attention should be paid to the choice of method of commercialization in Kazakhstan (B. Kenzhaliyev et al, 2020;O. B. Kenzhaliyev et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Motivating factors of innovative research activities and barriers to R&D in Kazakhstan

Ilmaliyev

Patihan²,

Tursunbekov³

et al. 2022

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While higher education, science, and industry have become key factors in the national and economic growth of a country, they perhaps act as independent performers. This paper aims to describe the development of innovative commercialization activities based on the dissemination of innovations in the fields of research, education, and business. The present research, using empirical studies as its research method, first reviewed the current worldwide status of research studies to see their contribution to knowledge transfer. Second, it portrayed the results of an online survey of 100 respondents studying and teaching or researching at Kazakhstani universities to better understand the innovative research activities and motivations of and barriers to the research and development (RD) in the Republic of Kazakhstan. The results of the proposed approach are presented in the case of Kazakhstani researchers. Based on such findings, some recommendations are made for better Kazakhstani education, industry, and science alignment so that research in this country can have a greater impact on economic growth.

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TRANSFORMATION OF THE RARE EARTH ELEMENTS AND IMPURITY ELEMENTS COMBINATIONS IN THE COURSE OF pH PREGNANT SOLUTION MODIFICATION

Cited by 8 publications

References 0 publications

Study of Electroflotation Beneficiation of Low-Sulphide and Refractory Gold-Bearing Raw Materials

Study of Electroflotation Beneficiation of Low-Sulphide and Refractory Gold-Bearing Raw Materials

Studies on Valued Components Extraction from Titanium-Magnesium Production Wastes

Motivating factors of innovative research activities and barriers to R&D in Kazakhstan

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