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US 4,789,466 AGranted
Method of separating non-sulfidic minerals by flotation
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsWolfgang von Rybinski, Rita Koester
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Abstract
A process for separating non-sulfidic minerals from an ore by flotation in which the ore is contacted with a mixture of (a) at least one adduct of ethylene oxide and propylene oxide with a C.sub.8 -C.sub.22 fatty alcohol and (b) at least one anionic, cationic or ampholytic surfactant.
Claims16
A process for separating non sulfidic minerals from an ore by flotation which comprises the steps of
- A. contacting the ore with a mineral collector-active quantity of a mixture of
- (a) at least one reaction adduct of ethylene oxide and propylene oxide with a C.sub.8 -C.sub.22 fatty alcohol;
- and
- (b) at least one anionic, cationic or ampholytic surfactant, in the presence of water;
- and
- B. aerating the aqueous mixture from step A. to produce a foam containing the non-sulfidic mineral;
- and
- C. separating the foam from the aqueous mixture.
5 more elements
A process for the separation of non-sulfidic minerals from a ground ore by flotation comprising the steps of
- A. mixing the ground ore with water to form an ore suspension;
- B. introducing into the suspension a mineral collector-active quantity of a mixture of
- (a) at least one reaction adduct of ethylene oxide and propylene oxide with a C.sub.8 -C.sub.22 fatty alcohol and
- (b) at least one anionic, cationic or ampholytic surfactant;
- C. aerating the suspension to produce a foam containing the non-sulfidic mineral;
- and
- D. separating the foam from the suspension.
4 more elements
Dependencies are inferred from the claim text.