Global Patent Index - EP 0270933 A3

EP 0270933 A3 19891025 - SURFACTANT MIXTURES AS COLLECTORS FOR THE FLOTATION OF NON-SULFIDIC MINERALS

Title (en)

SURFACTANT MIXTURES AS COLLECTORS FOR THE FLOTATION OF NON-SULFIDIC MINERALS

Publication

EP 0270933 A3 19891025 (DE)

Application

EP 87117456 A 19871126

Priority

DE 3641447 A 19861204

Abstract (en)

[origin: US4790931A] Mixtures of (a) at least one alkyl or alkenyl polyethylene glycol ether which is terminally blocked by a hydrophobic radical, and (b) at least one anion-active surfactant are used as collectors in the flotation of non-sulfide ores.

IPC 1-7

B03D 1/00

IPC 8 full level

B03D 1/00 (2006.01); B03D 1/004 (2006.01); B03D 1/008 (2006.01); B03D 1/012 (2006.01); B03D 1/014 (2006.01)

CPC (source: EP US)

B03D 1/0043 (2013.01 - EP US); B03D 1/008 (2013.01 - EP US); B03D 1/012 (2013.01 - EP US); B03D 1/014 (2013.01 - EP US); B03D 2201/02 (2013.01 - EP US); B03D 2203/04 (2013.01 - EP US)

Citation (search report)

  • [X] EP 0107561 A1 19840502 - ELF AQUITAINE [FR]
  • [X] GB 782107 A 19570904 - ANZIN LTD
  • [A] US 3865718 A 19750211 - TVETER ELMER C, et al
  • [A] EP 0201815 A2 19861120 - HENKEL KGAA [DE]
  • [AD] DE 3315951 A1 19841108 - HENKEL KGAA [DE]
  • [A] SOVIET INVENTIONS ILLUSTRATED, Woche 8601, 21. Januar 1986, Zusammenfassung Nr. 86-005601/01, Derwent Publications Ltd, Londen, GB; & SU-A-1162 495 (BELORUSS KIROV TECHN. INS.) 23-06-1985
  • [AD] DEVELOPMENTS IN MINERAL PROCESSING 2: Teil A, THIRTEENTH INTERNATIONAL MINERAL PROCESSING CONGRESS, Warsaw, 4-9 Juni 1979, Seiten 86-109, Elsevier Scientific Publishing Co., Amsterdam, NL; A. DOREN et al.: "Influence of non-ionic surfactants on the flotation of cassiterite"

Designated contracting state (EPC)

AT DE ES FR GB SE

DOCDB simple family (publication)

EP 0270933 A2 19880615; EP 0270933 A3 19891025; EP 0270933 B1 19920722; AU 598069 B2 19900614; AU 8206687 A 19880609; BR 8706550 A 19880712; CN 1012420 B 19910424; CN 87107281 A 19880615; DE 3641447 A1 19880609; DE 3780587 D1 19920827; FI 83044 B 19910215; FI 83044 C 19910527; FI 875335 A0 19871203; FI 875335 A 19880605; PT 86256 A 19880101; PT 86256 B 19901107; TR 24113 A 19910322; US 4790931 A 19881213; ZA 879095 B 19880606

DOCDB simple family (application)

EP 87117456 A 19871126; AU 8206687 A 19871203; BR 8706550 A 19871204; CN 87107281 A 19871203; DE 3641447 A 19861204; DE 3780587 T 19871126; FI 875335 A 19871203; PT 8625687 A 19871202; TR 84787 A 19871202; US 12774987 A 19871202; ZA 879095 A 19871203