EP 1979418 A1 20081015 - USE OF DISPERSANTS TO CONCENTRATE MINERALS IN WATER, DISPERSIONS OBTAINED AND USES THEREOF
Title (en)
USE OF DISPERSANTS TO CONCENTRATE MINERALS IN WATER, DISPERSIONS OBTAINED AND USES THEREOF
Title (de)
VERWENDUNG VON DISPERGIERMITTELN ZUR ANREICHERUNG VON MINERALIEN IN WASSER, DIE ERHALTENEN DISPERSIONEN UND DEREN VERWENDUNG
Title (fr)
UTILISATION DE DISPERSANTS POUR CONCENTRER DES MATIERES MINERALES DANS L'EAU, DISPERSIONS OBTENUES ET LEURS UTILISATIONS
Publication
Application
Priority
- IB 2006003681 W 20061213
- FR 0512928 A 20051220
Abstract (en)
[origin: WO2007072168A1] The invention consists of the use of dispersants in a process for producing an aqueous dispersion of minerals by a) grinding said minerals at low solids content (= 40%) in water, without dispersant and/or grinding aid, b) carrying out concentration to high solids content (= 65%) by mechanical and/or thermal means, characterized in that at least one dispersant is introduced between step a) and step b) and/or during step b) and/or during and after step b), in the form of a combination of at least one acrylic acid homopolymer and at least one inorganic fluorine compound.
IPC 8 full level
B02C 23/06 (2006.01); C09C 1/02 (2006.01); C09C 3/04 (2006.01); C09C 3/06 (2006.01); C09C 3/08 (2006.01); C09C 3/10 (2006.01); C09K 23/52 (2022.01); D21H 17/67 (2006.01); D21H 19/38 (2006.01)
CPC (source: EP KR US)
B02C 23/06 (2013.01 - KR); C01F 11/185 (2013.01 - EP US); C09C 1/02 (2013.01 - KR); C09C 1/021 (2013.01 - EP US); C09C 1/022 (2013.01 - EP US); C09C 1/42 (2013.01 - EP US); C09C 3/006 (2013.01 - EP US); C09C 3/04 (2013.01 - KR); C09C 3/041 (2013.01 - EP US); C09C 3/06 (2013.01 - EP KR US); C09C 3/08 (2013.01 - EP US); C09C 3/10 (2013.01 - EP US); D21H 19/64 (2013.01 - EP US); C01P 2004/62 (2013.01 - EP US); C01P 2006/22 (2013.01 - EP US); D21H 19/385 (2013.01 - EP US); D21H 19/58 (2013.01 - EP US)
Citation (search report)
See references of WO 2007072168A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2894846 A1 20070622; FR 2894846 B1 20080201; AR 058547 A1 20080213; CA 2629622 A1 20070628; CN 101341217 A 20090107; EP 1979418 A1 20081015; JP 2009520096 A 20090521; KR 20080078672 A 20080827; NO 20082981 L 20080724; RU 2008129817 A 20100127; TW 200727975 A 20070801; US 2009111906 A1 20090430; WO 2007072168 A1 20070628
DOCDB simple family (application)
FR 0512928 A 20051220; AR P060105559 A 20061215; CA 2629622 A 20061213; CN 200680048344 A 20061213; EP 06831756 A 20061213; IB 2006003681 W 20061213; JP 2008546674 A 20061213; KR 20087014722 A 20080618; NO 20082981 A 20080701; RU 2008129817 A 20061213; TW 95146819 A 20061214; US 8486206 A 20061213