Abstract: Method of in-situ crosslinking a polymer treated mineral slurry residues from a mineral processing operation, in which said mineral slurry residues comprises an aqueous liquid with dispersed particulate mineral solids, characterised by: (a) combining with said mineral slurry residues a water-soluble ionic polymer such that the dispersed particulate mineral solids of the mineral slurry residues are positively or negatively charged such that said mineral slurry residues are treated, and then (b) combining with said treated mineral slurry residues a ionic crosslinking agent such that a in-situ crosslinking occurs in the structure of the treated mineral slurry residues, and wherein the ionicity of the water-soluble polymer and the ionicity of the crosslinking agent are opposite.

Abstract: 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.

Abstract: The present invention relates to an effluent treatment method for treating an aqueous effluent having solid particles, the method including the addition to the effluent of at least one water-soluble polymer comprising at least one non-ionic monomer and at least one anionic monomer obtained by controlled radical polymerization, the said polymer having a UL viscosity of between 2 and 4.5 cps.

Abstract: 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.

Abstract: 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: at least one non-ionic monomer, selected from the group consisting of acrylamide; methacrylamide; N-monoderivatives of acrylamide; N-monoderivatives of methacrylamide; N,N-derivatives of acrylamide; N,N-derivatives of methacrylamide; acrylic esters; methacrylic esters; N-vinylformamide; and N-vinylpyrrolidone; at least one anionic monomer representing between 10 and 70 mol %, selected from the group consisting of monomers having a carboxylic functional group and salts thereof; monomers having a sulphonic acid functional group and salts thereof; monomers having a phosphonic acid functional group and salts thereof; at least one cationic monomer representing between 0.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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: o at least one non-ionic monomer, selected from the group consisting of acrylamide; methacrylamide; N-monoderivatives of acrylamide; N-monoderivatives of methacrylamide; N,N-derivatives of acrylamide; N,N-derivatives of methacrylamide; acrylic esters; methacrylic esters; N-vinylformamide; and N-vinylpyrrolidone; o at least one anionic monomer representing between 10 and 70 mol %, selected from the group consisting of monomers having a carboxylic functional group and salts thereof; monomers having a sulphonic acid functional group and salts thereof; monomers having a phosphonic acid functional group and salts thereof; o at least one cationic monomer representing between 0.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to novel hybrid compounds containing at least one polysaccharide entity (PS), such as guar, in which at least one hydroxyl function is substituted by at least one A polyoxyalkylene entity (PEG). The swivel Ro between the entity PS and the entity A is obtained by click chemistry and has the following formula (IL1) or (IL2), in which Z is a carbon or nitrogen atom. These hybrid compounds can be used as emulsifiers, particularly in cosmetics.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to novel hybrid compounds containing at least one polysaccharide entity (PS), such as guar, in which at least one hydroxyl function is substituted by at least one A polyoxyalkylene entity (PEG). The swivel Ro between the entity PS and the entity A is obtained by click chemistry and has the following formula (II.1) or (II.2), in which Z is a carbon or nitrogen atom. These hybrid compounds can be used as emulsifiers, particularly in cosmetics.