Features of Shaimerden Deposit Oxidized Zinc Ore Leaching

Ramazanova, R. A.; Seraya, N. V.; Bykov, R. A.; Mamyachenkov, S. V.; Анисимова, О. С.

doi:10.1007/s11015-016-0342-3

Cited by 3 publications

(3 citation statements)

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“…In these areas, the development of technology to prevent the formation of sparingly soluble and insoluble zinc compounds during the firing of sulfide zinc concentrates in fluidized bed furnaces is of particular importance. Among other things, improving the processing of zinc concentrates is considered important for ensuring resource conservation [2].…”

Section: Introductionmentioning

confidence: 99%

Possibilities for improving the technology of roasting zinc concentrates

Ismailov,

Berdiyarov,

Nosirkhujayev

et al. 2024

E3S Web of Conf.

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The paper presents an investigation into the oxidation process of zinc sulfide concentrate. A common challenge encountered during the fluidized calcination process is the high concentration of sulfide sulfur in the condensed products, such as the mixture collected at the furnace threshold and in the dust. This scientific work reports the results of laboratory studies aimed at improving the technology of roasting zinc concentrates. The study's objective was to obtain zinc cinders with increased solubility in aqueous solutions by roasting sulfide zinc concentrates. The results show that the optimal composition of the charge for roasting was determined using limestone and wastewater from the processing plant, which contains alkaline earth metal oxides. This composition helped reduce the formation of ferrites and silicates by 1.5-1.7 times.

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Section: Introductionmentioning

confidence: 99%

Possibilities for improving the technology of roasting zinc concentrates

Ismailov,

Berdiyarov,

Nosirkhujayev

et al. 2024

E3S Web of Conf.

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“… 1 − 3 This poses significant harm to water sources, soil, and flora and fauna in mining areas and around factories. 4 − 8 In general, the treatment of lead-containing solutions is the main process during recovering lead from lead-containing minerals; 9 , 10 particularly, during leaching of low-grade galena ores, the high concentrations of chlorides are required as leaching agent, like NaCl, 11 CaCl 2, 12 MgCl 2. 13 …”

Section: Introductionmentioning

confidence: 99%

“…The Pb 2+ , Mg 2+ , Ca 2+ //Cl – –H 2 O quaternary aqueous salt phase diagram, as an important multiphase diagram system, has attracted widespread attention from researchers due to its extensive application and significant importance in metallurgy, materials science, environmental engineering, etc. For example, the amount of lead-containing wastewater discharged from lead-bearing mineral processing and smelting, lead battery manufacturing, and other lead-related industries is substantial. − This poses significant harm to water sources, soil, and flora and fauna in mining areas and around factories. − In general, the treatment of lead-containing solutions is the main process during recovering lead from lead-containing minerals; , particularly, during leaching of low-grade galena ores, the high concentrations of chlorides are required as leaching agent, like NaCl, CaCl 2, MgCl 2. …”

Section: Introductionmentioning

confidence: 99%

Solid–Liquid Phase Equilibria of the Pb²⁺, Ca²⁺, Mg²⁺//Cl^––H₂O Quaternary System and Its Subsystems at 303.2 K

Liu,

Hou,

Yang

et al. 2024

ACS Omega

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were investigated at atmospheric pressure and T = 303.2 K using the isothermal dissolution equilibrium method. Additionally, solid phase equilibria of the quaternary system Pb 2+ , Mg 2+ , and Ca 2+ //Cl − −H 2 O were determined, and the corresponding stable phase diagrams and density-composition diagrams were constructed. The results indicate that the phase diagrams of Pb 2+ , Ca 2+ //Cl − −H 2 O mainly consist of a ternary invariant point, two solubility curves, and four crystalline regions, while there are two ternary invariant points, three solubility curves, and six crystalline regions in the Pb 2+ , Mg 2+ //Cl − −H 2 O and Ca 2+ , Mg 2+ //Cl − −H 2 O systems. The results of the density-versus-w(CaCl 2 ) plots of the various ternary systems confirm that the density of the equilibrium solution tends to go upward with the increase in the mass fraction of CaCl 2 . The density of various ternary systems reaches the maximum and equilibrium at the corresponding invariant point, and there is no significant change with the further increase in the CaCl 2 mass fraction. Furthermore, the phase diagram of the Pb 2+ , Mg 2+ , Ca 2+ //Cl − −H 2 O quaternary system includes two invariant points, five isothermal dissolution curves, and five crystalline regions. The order of the relative areas of the crystalline regions for the five salts is PbCl

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