EP 3817860 A1 20210512 - PROCESS FOR FROTH FLOTATION
Title (en)
PROCESS FOR FROTH FLOTATION
Title (de)
VERFAHREN ZUR SCHAUMFLOTATION
Title (fr)
PROCÉDÉ DE FLOTTATION PAR MOUSSE
Publication
Application
Priority
- EP 18182117 A 20180706
- EP 2019067975 W 20190704
Abstract (en)
[origin: WO2020007971A1] The invention relates to a process for froth flotation of an ore to recover phosphate-containing materials from the ore, that includes adding a primary collector and a collector aid to the ore, next performing a conditioning step of the ore, wherein theprimarycollector is selected from the group consisting of an amphoteric surface- active compound, an anionic surface-active compound and combinations thereof; and thecollector aidhasthe formula R 3 -CO-O-A n -R 4 where R 3 is a linear or branched, alkyl or hydroxyalkyl group having from 3 to 8 carbon atoms, R 4 is a linear or branched, alkyl or hydroxyalkyl group having from 3 to 10 carbon atoms and at least one of R 3 and R 4 contains a hydroxyl group; A is either ethoxy, propoxy or butoxy and n is 0-10.
IPC 8 full level
B03D 1/008 (2006.01); B03D 1/004 (2006.01); B03D 1/01 (2006.01); B03D 1/02 (2006.01)
CPC (source: EP)
B03D 1/0043 (2013.01); B03D 1/008 (2013.01); B03D 1/01 (2013.01); B03D 1/021 (2013.01); B03D 2203/06 (2013.01)
Citation (search report)
See references of WO 2020007971A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020007971 A1 20200109; BR 112021000181 A2 20210601; EP 3817860 A1 20210512
DOCDB simple family (application)
EP 2019067975 W 20190704; BR 112021000181 A 20190704; EP 19734426 A 20190704