Dissolved metal leaching tank and leaching process for producing metal compounds by ammonia method

Abstract

The invention discloses a molten metal leaching tank for producing a metallic compound through an ammonia process and a leaching process. The molten metal leaching tank comprises a leaching tank shell, a circulating pipe, an isolating sleeve and a pore plate with an opening; a reaction gas outlet is formed in the top of the leaching tank shell, and a discharging opening is formed in the bottom of the leaching tank shell; the circulating pipe is fixed in the leaching tank shell through a supporting part; the circulating pipe is sleeved with the isolating sleeve, and the isolating sleeve is fixed in the leaching tank shell through a supporting part. The top of space formed between the circulating pipe and the isolating sleeve is closed. The pore plate is fixed in the leaching tank shell through a supporting part, the edge of the pore plate is connected with the inner wall of the leaching tank shell, the lower end of the isolating sleeve is fixed to the pore plate, and the lower end of the circulating pipe stretches to the position below the pore plate through the opening formed in the pore plate. The leaching tank shell is provided with a reaction gas inlet, the reaction gas inlet is correspondingly located below the pore plate and connected with a gas inlet pipeline, and the gas inlet pipeline is communicated with the circulating pipe through an opening formed in the pipe wall of the circulating pipe.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and in particular relates to a metal-dissolving leaching tank and a leaching process for producing metal compounds by an ammonia method. Background technique [0002] At present, the production process of metal compounds including nickel carbonate, zinc carbonate, (active) copper oxide and copper carbonate is long, consumes a lot of energy, the structure of the equipment is complex, and there are various shortcomings in the process. [0003] For example: activated copper oxide has the characteristics of high purity, small particle size, large specific surface area, and fast dissolution rate in the acid specified in the electroplating industry. It has many specific properties and great potential application value in the fields of electronics and catalysis. Usually the production of high-purity active copper oxide powder mainly adopts the carbonate calcination method. Due to the long process flow ...

AI Technical Summary

Problems solved by technology

[0007] The above methods all have the disadvantages of complex process and equipment and high energy consumption, and will generate a large amount of washing wastewater, which will bring trouble to subsequent treatment.

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