PROCEDURE FOR PRODUCTION OF NANO DISPERSED COPPER POWDER Russian patent published in 2011 - IPC C22B15/00 B22F9/24 

FIELD: metallurgy.

SUBSTANCE: procedure for production of nano dispersed copper powder by reduction consists in mixing copper salt with solution of glucose, in dissolving salt at heating, in introduction of sodium hydroxide, in conditioning under isothermal mode and in successive extraction of metal copper in form of nano dispersed powder. Also, sulphate of copper is used as copper salt. Copper sulphate is mixed with solution of glucose at mole ratio of glucose to copper equal to (1.0-2.5):1.0. Dissolving is carried out at 50-60°C. Sodium hydroxide is introduced upon complete copper sulphate dissolving and solution heating to temperature 70°C. It is carried out gradually at several stages for maintaining pH equal to 6-11 in process of reduction reaction, preferably, to 8-9, first to formation of oxide of univalent copper, and further to metal copper.

EFFECT: simplified, with reduced prime cost process of production of nano dimension particles of copper due to reduced number of process operations of synthesis.

2 cl, 3 dwg, 1 tbl, 16 ex