EP 0246105 B1 19920318 - RECOVERING COAL FINES
Title (en)
RECOVERING COAL FINES
Publication
Application
Priority
GB 8611747 A 19860514
Abstract (en)
[origin: GB2225260A] An additive composition for use in recovering coal fines in a froth flotation process comprises a hydrophobic polyvinylether, a frother and a liquid organic carrier. The polyvinylether may be for example polyvinylethylether or polyvinylisobutylether, the frother may be for example methyl isobutyl carbinol or a mixture of polypropylene glycol ethers, and the organic carrier may be for example gas oil, diesel oil, kerosene or another petroleum- or coal-based distillate. Preferred ranges and examples are described.
IPC 1-7
IPC 8 full level
B03D 1/004 (2006.01); B03D 1/006 (2006.01); B03D 1/016 (2006.01); B03D 1/02 (2006.01); B03D 3/06 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
B03D 1/006 (2013.01); B03D 1/016 (2013.01); B03D 1/02 (2013.01); B03D 3/06 (2013.01); B03D 2201/04 (2013.01); B03D 2203/08 (2013.01); F02B 3/06 (2013.01)
Designated contracting state (EPC)
BE DE ES FR IT
DOCDB simple family (publication)
GB 2225260 A 19900530; GB 2225260 B 19900829; GB 8924001 D0 19891213; DE 3777448 D1 19920423; EP 0246105 A2 19871119; EP 0246105 A3 19890405; EP 0246105 B1 19920318; ES 2040251 T3 19931016; GB 2190310 A 19871118; GB 2190310 B 19901017; GB 8611747 D0 19860625; GB 8711401 D0 19870617; ZM 1592 A1 19921130
DOCDB simple family (application)
GB 8924001 A 19891025; DE 3777448 T 19870514; EP 87304307 A 19870514; ES 87304307 T 19870514; GB 8611747 A 19860514; GB 8711401 A 19870514; ZM 1592 A 19920327