Decomposition of 2KCl.CuCl to produce cuprous chloride and potas

Details Decomposition of 2KCl.CuCl to produce cuprous chloride and potas Decomposition of 2KCl.CuCl to produce cuprous chloride and potas

1981-06-09

1982-08-10

Thomas, Earl C.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

423 32, 423 34, 423 42, 423463, 423499, C01G 305, C01D 304

Patent

active

043437818

ABSTRACT:
Cuprous chloride is produced from the complex salt, 2KCl.CuCl, obtained as a by-product in the copper industry where chalcopyrite is decomposed in the presence of potassium chloride, by a series of steps involving reaction of an aqueous solution of the complex salt of potassium chloride and cuprous chloride with ammonia, separating the resulting solid potassium chloride from a solution containing cuprous chloride and ammonia, removing the ammonia from the solution to cause precipitation of the cuprous chloride and recovering solid cuprous chloride. Ammonia may then be recycled to the solution from which the cuprous chloride is removed and to which additional complex salt is added to repeat the cycle.

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