Patent ID: 11970755
Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 0:
1. The application of cuprous sulfide in a recovery of Au (III) from aqueous solutions, comprising: adding cuprous sulfide to aqueous solutions containing Au (III) to adsorb gold, wherein a pH value of the aqueous solutions containing Au (III) is 1-5;
a preparation method of cuprous sulfide is as follows: mixing and reacting copper salt solution and thiosulfate solution in a concentration ratio of 1:2-1:10 of copper salt to thiosulfate, then performing centrifugation, and then drying to obtain the cuprous sulfide required, wherein the copper salt solution is a copper sulfate solution or a copper chloride solution, a concentration of the copper salt solution is 1-15 mmol/L, and a concentration of thiosulfate is 2-120 mmol/L.