Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1994-05-09
1997-12-02
Mullis, Jeffrey C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 50, 524 52, 525 5426, 252 61, C08L 304, C08L 308
Patent
active
056936923
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 chemically-modified carbohydrate polymer, a polyacrylate and low foaming lignin sulphonate.
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Bulatovic Srdjan
Jackson James F.
Jessup Tim M.
Leighton Gordon
Brown Ron D.
Falconbridge Limited
Huntsman Petrochemical Corp.
Mossman David L.
Mullis Jeffrey C.
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