EP 0378128 B1 19931110 - Method for the selective flotation of phosphate ores.
Title (en)
Method for the selective flotation of phosphate ores.
Title (de)
Verfahren zur selektiven Flotation von Phosphormineralien.
Title (fr)
Procédé de flottation sélective de minerais de phosphate.
Publication
Application
Priority
DE 3900827 A 19890113
Abstract (en)
[origin: CA2007637A1] HOE 89/F 006 of the disclosure Process for selective flotation of phosphorus minerals. A process for selective flotation of phosphate minerals, wherein a compound of the formula 1a or 1b (1a) or (1b) in which R1 is branched or unbranched C8-C24-alkenyl, R2 is branched or unbranched C1-C4-alkyl and M is hydrogen, ammonium, triethanolammonium, an alkali metal atom or an alkaline earth metal atom, is added as a collecting agent to the flotation suspension.
IPC 1-7
IPC 8 full level
B03D 1/008 (2006.01)
CPC (source: EP US)
B03D 1/008 (2013.01 - EP US); B03D 1/01 (2013.01 - EP US); B03D 2201/02 (2013.01 - EP US); B03D 2201/04 (2013.01 - EP US); B03D 2201/06 (2013.01 - EP US); B03D 2203/06 (2013.01 - EP US); Y10S 209/902 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0378128 A2 19900718; EP 0378128 A3 19911009; EP 0378128 B1 19931110; BR 9000109 A 19901023; CA 2007637 A1 19900713; DE 3900827 A1 19900719; FI 89877 B 19930831; FI 89877 C 19931210; FI 900149 A0 19900111; FI 900149 A 19900714; RU 1795911 C 19930215; US 4968415 A 19901106; ZA 90229 B 19900926; ZW 490 A1 19900725
DOCDB simple family (application)
EP 90100215 A 19900105; BR 9000109 A 19900112; CA 2007637 A 19900112; DE 3900827 A 19890113; FI 900149 A 19900111; SU 4742822 A 19900112; US 46283490 A 19900110; ZA 90229 A 19900112; ZW 490 A 19900112