S.p.c.m. Sa

Snf Group

Morgan Tizzotti

Cédrick Favero

Cedrick Favero

Nicolas Gaillard

Frédéric Daguerre

Marc-Edouard Michel

Trong Dang-Vu

Emmanuelle Read

The invention concerns a flocculation formulation. The invention also concerns the treatment of mine tailings in the form of aqueous effluents comprising solid particles. With the method of the invention, it is possible to separate all or part of the water from an aqueous effluent comprising solid particles.

Method for treating aqueous effluent

The invention relates to a method for treating an aqueous suspension of solid mineral particles arising from the extraction of ores, comprising the following steps: a soluble polymer is prepared in water, comprising:

Method for treating suspensions of solid particles in water using amphoteric polymers

The invention concerns the treatment of mine tailings in the form of aqueous effluents comprising solid particles. With the method of the invention it is possible to separate all or part of the water from an aqueous effluent comprising solid particles. This method comprises (a) adding at least one sulfonated dispersing agent to the effluent, then (b) adding at least one agent to flocculate the solid particles. The invention also relates to a composition comprising an aqueous effluent comprising dispersed, flocculated solid particles. Preferably it relates to a composition comprising an aqueous effluent comprising solid particles, at least one sulfonated dispersing agent and at least one agent to flocculate solid particles.

The invention relates to a method for treating an aqueous suspension of solid particles, wherein at least one water-soluble polymer is added to the suspension, and wherein said polymer is obtained by polymerizing at least a non-ionic monomer, optionally at least one anionic and/or at least one cationic monomer, in the presence of a multifunctional free radical transfer agent. This method is particularly useful for the treatment of mineral tailings and especially for tailings resulting from oil sand extraction.

Method for treating suspensions of solid particles in water using comb like polymers

A composition for treating an aqueous suspension of mineral particles includes at least one water soluble polymer and at least one calcium salt, magnesium salt or both a Calcium salt and a Magnesium salt. The composition is in powder form.

Composition for treating suspensions of solid particles in water and method using said composition

Method for recovering bitumen from tar sands, according to which sands are brought into contact with at least one partially hydrolyzed poly(vinyl acetate) (co)polymer A.

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Lyons, France

Morgan Tizzotti