US 12,766,524 B2 · Method for selectively recovering arsenic- containing copper mineral, and flotation agent used in same

Abstract

In order to decrease arsenic, which is a harmful substance, in a copper concentrate, provided is a method for selectively recovering an arsenic-containing copper mineral from a mixture including the arsenic-containing copper mineral and a non-arsenic-containing copper mineral, and a flotation agent used in the same. For a collecting agent, which is a component of the flotation agent used in a flotation step for selectively recovering the arsenic-containing copper mineral from the mixture including the arsenic-containing copper mineral and the non-arsenic-containing copper mineral, a sulfide compound having an R1—S—R2 (in this expression, R1 is a C5-10 alkyl group, and R2 is a C1-10 alkyl group) structure such as methyl n-octyl sulfide or di-n-octyl sulfide is used.

Claims6

Dependent claims

A method for selectively recovering arsenic-containing copper minerals from a mixture containing arsenic-containing copper minerals and arsenic-free copper minerals, comprising:

a slurrying step of adding water to the mixture to form a slurry;
a flotation step of adding a flotation reagent containing a collector to the slurry to selectively float the arsenic-containing copper minerals for ore beneficiation,
the collector being represented by the following formula (1):
R1—S—R2 (1)
wherein R1 is an alkyl group having 5 to 10 carbon atoms, and R2 is an alkyl group having 1 to 10 carbon atoms;
and
separating the arsenic-containing copper minerals from a mixture containing the arsenic-containing cooper minerals and the arsenic-free copper minerals.

4 more elements

Dependencies are inferred from the claim text.

Method for selectively recovering arsenic- containing copper mineral, and flotation agent used in same

Life of this patent

Method for selectively recovering arsenic- containing copper mineral, and flotation agent used in same

Life of this patent

Abstract

Claims6