Investigation of selective extraction of copper ions by organic reagents based on dialkylhydrazides of carboxylic acid

Abstract

Acetic acid dialkylhydrazides were investigated as extractants of copper ions. We found that selective extrac- tion of copper was observed at pH 0.4–1.4. It is found that, depending on the technological conditions of the extraction, the extraction process of copper ions occurs preferably compared with zinc and iron ions at their joint presence in the solution.