METHOD FOR PREPARATION OF COPPER AMMONIUM CARBONATE SOLUTION Russian patent published in 2019 - IPC C01G3/00 A01N59/20 

FIELD: chemistry.

SUBSTANCE: invention relates to a technology for producing a copper ammonium carbonate solution (CACS), which can be used in the chemical industry in obtaining raw materials and intermediates in the production of catalysts, as well as in agriculture, animal husbandry, construction as a fungicide and antiseptic. Method for the preparation of a copper ammonium carbonate solution (CACS) is proposed, consisting in the fact that powdered copper or copper oxide or copper hydroxide is dissolved in ammonium carbonate solution (ACS) containing NH₃ and CO₂, with a copper compound introduced into it with Cu⁺² valence; in which copper is dissolved in ACS in the temperature range from 40 °C to 50 °C, ACS contains NH₃ from 100 to 120 g/l, CO₂ from 70 to 90 g/l and copper compounds with Cu⁺² valence from 15 to 20 g/l, at the same time, as the latter, basic copper carbonate or copper nitrate, or copper acetate, or ammonium carbonate complex of divalent copper is added.

EFFECT: intensification of the process of obtaining a copper-ammonium carbonate solution.

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