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Full-Text Articles in Engineering
Selective Oxidation Of Iron In Chalcopyrite For Enhanced Copper Recovery, Khojiakbar Shuxrat O'G'Li Sultonov, Shokhrukh Toshpulatovich Khojiev, Gulnoza Berdiyor Qizi Beknazarova, Malika Sayfullayevna Saidova
Selective Oxidation Of Iron In Chalcopyrite For Enhanced Copper Recovery, Khojiakbar Shuxrat O'G'Li Sultonov, Shokhrukh Toshpulatovich Khojiev, Gulnoza Berdiyor Qizi Beknazarova, Malika Sayfullayevna Saidova
Technical science and innovation
This study explores the thermodynamic feasibility of selectively oxidizing iron contained in chalcopyrite mineral while preventing the oxidation of copper sulphide, with the ultimate goal of enhancing the copper concentration in the sulphide concentrate. A redox reaction in the solid phases between chalcopyrite and copper (I) oxide was constructed and subjected to thermodynamic analysis. The research identifies a crucial temperature range of 498-598 K (225-325 °C) as the most favourable for the redox reaction. The equilibrium constants at the selected optimal temperatures, 1.152 for chalcopyrite and 1.137 for copper (I) oxide, indicate that the redox reaction adheres to the expected …
Analysis Of The Possibility Of Increasing The Degree Of Zinc Waelz And Reducing Metal Losses During Waelz, Bakhriddin Tilovkabulovich Berdiyarov Dr.
Analysis Of The Possibility Of Increasing The Degree Of Zinc Waelz And Reducing Metal Losses During Waelz, Bakhriddin Tilovkabulovich Berdiyarov Dr.
Technical science and innovation
The article examines the flow process of zinc cakes, which is formed during the selective melting of zinc burns, and the factors influencing it. The effects of silica and calcium oxide on the combustion of coke added to the Welting process were analyzed. When the kinetic kinetics of zinc ferrites and silicates present in zinc cakes are studied, the addition of lime to the strategy promotes the thermodynamic recovery of zinc and reduces graphite consumption.The article also examines the temperature dependence of the rate of reduction reactions of zinc silicate and zinc oxides. Studies of the kinetics of coal-thermal reduction …