B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
B03D 1/016 (2006.01) B03D 1/02 (2006.01)
Patent
CA 2095307
ABSTRACT OF THE DISCLOSURE (D#HC-006 C1C1-F) 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 chemically-modified carbohydrate polymer, a polyacrylate and low foaming lignin sulphonate.
Bulatovic Srdjan
Jackson James F.
Jessup Tim M.
Leighton Gordon
Falconbridge Limited
Smart & Biggar
Texaco Chemical Company
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