EP 0185640 A3 19860910 - FLOTATION REAGENT AND METHOD FOR RECOVERING COAL FROM COAL-CONTAINING MATERIAL
Title (en)
FLOTATION REAGENT AND METHOD FOR RECOVERING COAL FROM COAL-CONTAINING MATERIAL
Publication
Application
Priority
LU 85689 A 19841218
Abstract (en)
[origin: EP0185640A2] The reagent comprises, as a collector, at least one amine containing at least 6 carbon atoms, such as a tertiary amine containing from 10 to 36 carbon atoms with aliphatic, saturated cyclic or aromatic hydrocarbon radicals, and a frothing agent.
IPC 1-7
IPC 8 full level
B03D 1/004 (2006.01); B03D 1/01 (2006.01)
CPC (source: EP)
B03D 1/006 (2013.01); B03D 1/01 (2013.01); B03D 2203/02 (2013.01); B03D 2203/08 (2013.01)
Citation (search report)
- [Y] US 4305815 A 19811215 - HEFNER JR ROBERT E
- [X] FR 1241821 A 19600923 - PROD CHIM IND ET ORGANIQUES PR
- [A] FR 1469430 A 19670210 - ARMOUR & CO
- [A] US 4248696 A 19810203 - WHITE WILLIAM R
- [X] TRANSACTIONS, vol. 262, juin 1977, pages 174-180, Society of Mining Engineers, AIME; W. WEN et al.: "An electrokinetic study on the amine flotation of oxidized coal"
Designated contracting state (EPC)
BE DE FR GB LU NL
DOCDB simple family (publication)
EP 0185640 A2 19860625; EP 0185640 A3 19860910; LU 85689 A1 19860717
DOCDB simple family (application)
EP 85870076 A 19850529; LU 85689 A 19841218