Frothing agent for flotation of ores
AssigneeBASF SE
InventorsGraeme Levi Stewart, Alexej Michailovski, Yoav Zuk
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Abstract
Described herein are methods for flotation of an ore. The methods include providing an aqueous suspension having an ore in the form of particles, water, and a first frothing agent including a poly(tetrahydrofuran), in a flotation cell to obtain a provided aqueous suspension. The method further includes introducing air into the provided aqueous suspension to obtain a froth. Further described herein are specific aqueous suspensions having ore particles and poly(tetrahydrofuran) and uses of poly(tetrahydrofuran) as a frothing agent for an aqueous suspension having an ore in the form of particles.
Claims20
A method for flotation of an ore, comprising:
- (A) providing an aqueous suspension comprising
- (i) an ore, which is in the form of particles,
- (ii) water, and
- (iii) a first frothing agent,
- in a flotation cell to obtain a provided aqueous suspension;
- and
- (B) introducing air into the provided aqueous suspension to obtain a froth, wherein the first frothing agent is a poly(tetrahydrofuran) having a number-average molecular weight Mn in the range of 200 to 1200.
An aqueous suspension comprising:
- (i) an ore, which is in the form of particles,
- (ii) water, and
- (iii) a first frothing agent,
- wherein the frothing agent is a poly(tetrahydrofuran), the amount of component (iii) in the aqueous suspension is in the range of 0.00001 to 0.1 parts by weight based on 100 parts by weight of component (i), and
- wherein the amount of component (ii) in the aqueous suspension is in the range of 100 to 1000 parts by weight based on 100 parts by weight of component (i).
A method of using a first frothing agent as a component of an aqueous suspension, comprising:
- combining the first frothing agent with an ore, which is in the form of particles, and water to form the aqueous suspension;
- and
- generating froth in a flotation cell by introducing air into the aqueous suspension within the flotation cell,
- wherein the first frothing agent is a poly(tetrahydrofuran).
Dependencies are inferred from the claim text.