FIELD: chemical and electronic industry.
SUBSTANCE: the invention is pertinent to the field of chemical industry. Production of monohydrate of tetraammine copper (II) sulfate provides for addition of a commixing with water dissolvent to a reaction water solution, containing copper (II), ammonia, sulfate in a molar ratio equal to 1.0 : (3.5-45.0) : (0.8-5.0) and having pH from 7.0 up to 13.5, crystallization of the product, separation of crystals from the solution and their drying. For preparation of the reaction water solution as a source of copper (II) and ammonia use the waste solutions of printed circuit cards pickling, containing copper (II), ammonia, ammonium salts. The offered invention reduces material inputs on production of monohydrate of tetraamminecopper (II) sulfate and makes it possible to utilize the toxic waste products of electronic industry.
EFFECT: the invention ensures reduction of material inputs in production of monohydrate of tetraamminecopper (II) sulfate, utilization of the toxic waste products of electronic industry.
5 cl, 13 dwg
