Patent · US Active

Use of quaternary ammonium compounds as collectors in froth flotation processes

US8936159B2 · kind B2 · utility

4Cited by

5References

14Claims

0Family size

Assignee

Akzo Nobel Chemicals International B.V · NL

Inventors

Natalija Gorochovceva · Munkedal, SE
Anders Klingberg

Key dates

Filing date	May 25, 2011
Grant date	Jan 20, 2015
Priority date	—
Expiry date	Sep 29, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB03D2203/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to the use of a polymeric quaternary ester product as a collector in a froth flotation process, to a method for froth flotation utilizing the polymeric quaternary ester, to the polymeric quaternary ester as such, and to methods for the production of the polymeric quaternary ester.

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