EXTRACTION OF ZINC FROM ZINC BLENDE | Chemistry: Metals. Sep 3, 2012 ... Zinc Zinc is a metallic chemical element; it has the symbol Zn and ... fire clay retorts (Belgian Process) when ZnO gets reduced to metallic zinc.
Extraction of zinc from zinc blende: Zinc blende is zinc sulphide (ZnS). It is roasted in air, giving zinc oxide and sulphur dioxide. Then either: Zinc oxide is reduced by carbon monoxide in the Then the mixture of zinc and slag undergoes fractional distillation. Zinc oxide is insoluble in water and has a melting point just under 2000°C.
Process of extracting zinc using the blast furnace. Zinc blende is roasted in air to form zinc oxide and sulphur dioxide: Zinc oxide is heated with carbon, where it is reduced to zinc: Zinc escapes through the blast furnace as zinc vapour and is cooled down in condensation trays. Uses of metals. Metals can have many uses in various industries.
Extraction of zinc blende Secondly, there are two ways to obtain zinc from zinc blende, usually done through reducing its ore to zinc with carbon and limestone in a smelting furnace, or electrolysis. However, Zinc cannot be extracted in its ore but we need to roast it in air first to produce impure zinc oxide and sulfur dioxide gas by heating it at about .
During the extraction of metals, the metallic ions must first be reduced to the corresponding metal atoms. This reduction process can be done electrolytically or by thermal or chemical methods. The particular method chosen for the extraction of metal depends on the stability of the ore, which also depends on the position of the metal .