Patent · US Active

Enrichment of metal sulfide ores by oxidant assisted froth flotation

US10413914B2 · kind B2 · utility

0Cited by

33References

15Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Gerhard Arnold · Hanau, DE
Terry Michael Brown, Sr. · Washington, US
Ingo Hamann · Mount Olive, US
Alan Hitchiner · Morrinsville, NZ

Key dates

Filing date	Jan 25, 2013
Grant date	Sep 17, 2019
Priority date	—
Expiry date	Feb 3, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB03D2203/025
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention is directed to methods that can be used in the enrichment of metal sulfide ores in desired minerals in cases where the ores have sulfide-containing gangues. The method involves adding an oxidant to slurries prepared from the ores during, or immediately prior to froth flotation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.