METHOD FOR SELECTIVELY RECOVERING ARSENIC-CONTAINING COPPER MINERAL, AND FLOTATION AGENT USED IN SAME
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United States of America Patent
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Issued Date -
Oct 26, 2023
app pub date -
Jul 15, 2021
filing date -
Aug 27, 2020
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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.
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