EP 0368061 B1 19930317 - SURFACE-ACTIVE DERIVATIVES OF FATTY-ACID ESTERS AND/OR FATTY ACIDS AS COLLECTORS IN THE FLOTATION OF NON-SULFIDIC ORES
Title (en)
SURFACE-ACTIVE DERIVATIVES OF FATTY-ACID ESTERS AND/OR FATTY ACIDS AS COLLECTORS IN THE FLOTATION OF NON-SULFIDIC ORES
Publication
Application
Priority
DE 3836891 A 19881029
Abstract (en)
[origin: EP0368061A1] Surface-active fatty acid ester and/or fatty acid derivatives obtained by reacting epoxidized fatty acid esters with 1 to 3 mol of sulphur trioxide per mol of epoxide oxygen at 20 to 100 DEG C, reacting the reaction product (A) with nucleophilic reagents and, if necessary, saponifying the ester bond are used as collectors in the flotation of non-sulphidic ores.
IPC 1-7
IPC 8 full level
B03D 1/012 (2006.01)
CPC (source: EP)
B03D 1/012 (2013.01); B03D 2201/02 (2013.01); B03D 2203/04 (2013.01)
Designated contracting state (EPC)
DE ES FR GB SE
DOCDB simple family (publication)
EP 0368061 A1 19900516; EP 0368061 B1 19930317; AU 4631389 A 19900514; AU 627805 B2 19920903; BR 8907743 A 19910820; CA 2001736 A1 19900429; DE 3836891 A1 19900503; DE 58903805 D1 19930422; EP 0440746 A1 19910814; ES 2041939 T3 19931201; PT 92128 A 19900430; PT 92128 B 19950703; TR 24025 A 19910204; WO 9004459 A1 19900503; ZA 898203 B 19900725
DOCDB simple family (application)
EP 89119493 A 19891020; AU 4631389 A 19891020; BR 8907743 A 19891020; CA 2001736 A 19891030; DE 3836891 A 19881029; DE 58903805 T 19891020; EP 8901256 W 19891020; EP 89913082 A 19891020; ES 89119493 T 19891020; PT 9212889 A 19891027; TR 83989 A 19891020; ZA 898203 A 19891027