B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
400/1354, 361/22
B03D 1/02 (2006.01) B03D 1/012 (2006.01) B03D 1/016 (2006.01) B03D 1/06 (2006.01) C08B 31/00 (2006.01) C08F 251/00 (2006.01) C08F 281/00 (2006.01) C08G 83/00 (2006.01)
Patent
CA 1325068
- 1 - ABSTRACT A new depressant for use in enhanced separation of polymetallic sulphides is described. The depressant agent is used in conjunction with conventional collector agents and frothing agents in the flotation separation of copper, nickel, lead, zinc sulphides by depressing iron sulphides such as pyrrhotite, pyrite and marcasite in the tailing. The depressant consists of a cross-linked starch chemically combined with a polyacrylate and sugar free lignin sulphonate.
581135
Bulatovic Srdjan
Jackson James F.
Jessup Tim M.
Bereskin & Parr
Bulatovic Srdjan
Jackson James F.
Jessup Tim M.
Lakefield Research Limited
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