Importance

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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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First Claim