EP 0453677 B1 19950809 - Depression of the flotation of silica or siliceous gangue in mineral flotation.
Title (en)
Depression of the flotation of silica or siliceous gangue in mineral flotation.
Title (de)
Drücken von Kieselsäure oder siliziumgehaltiger Gangart bei Erzflotation.
Title (fr)
Dépression de la silice ou d'une gangue siliceuse dans la flottation des minerais.
Publication
Application
Priority
- EP 90304633 A 19900427
- CA 2014882 A 19900419
- ZA 903531 A 19900509
- CN 90102733 A 19900511
Abstract (en)
[origin: EP0453677A1] A flotation process is disclosed wherein the selectivity to the valuable mineral is improved by the depression of silica or siliceous gangue by the use of a hydroxy-containing compound such as an alkanol amine. The process is useful in the flotation of oxide minerals as well as in sulfide flotation.
IPC 1-7
IPC 8 full level
B03D 1/008 (2006.01); B03D 1/01 (2006.01); B03D 1/012 (2006.01); B03D 1/02 (2006.01)
IPC 8 main group level
B03D (2006.01)
CPC (source: EP)
B03D 1/008 (2013.01); B03D 1/01 (2013.01); B03D 1/012 (2013.01); B03D 2201/02 (2013.01); B03D 2203/02 (2013.01); B03D 2203/025 (2013.01)
Designated contracting state (EPC)
DE ES GB GR SE
DOCDB simple family (publication)
EP 0453677 A1 19911030; EP 0453677 B1 19950809; AU 5477490 A 19911107; AU 619979 B2 19920206; CA 2014882 A1 19911019; CA 2014882 C 19960220; CN 1056445 A 19911127; DE 69021553 D1 19950914; FR 2661844 A1 19911115; FR 2661844 B1 19931029; ZA 903531 B 19920129
DOCDB simple family (application)
EP 90304633 A 19900427; AU 5477490 A 19900507; CA 2014882 A 19900419; CN 90102733 A 19900511; DE 69021553 T 19900427; FR 9005770 A 19900509; ZA 903531 A 19900509