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US 12,098,085 B2Granted
Agents for use in hydrometallurgical process streams
AssigneeIndorama Ventures Oxides Australia Pty Limited
InventorsKen Deutscher, Sasha Boskovic, Andrew Coveney, Jason Hong, Salvatore Lazzaro, Kate Tildesley
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Abstract
The present disclosure relates to the field of chemical compounds, compositions and processes. More specifically, the present disclosure relates to compositions having a high-loading capacity in an aqueous medium and to compositions, processes and uses thereof as silica coagulants in hydrometallurgical process streams.
Claims16
A silica agglomeration composition comprising:
- (a) a silica coagulant comprising a reaction product of glycerine and alkylene oxide,
- wherein the silica coagulant has a molecular weight above 7,000, and
- (b) water,
- wherein the silica agglomeration composition comprises the silica coagulant dissolved in the water at a weight ratio of silica coagulant to water of about 54% or higher.
1 more element
A method for agglomerating silica particles in an aqueous mineral process stream comprising the steps of:
- providing a silica coagulant of formula (I):
- wherein each of R1, R2 and R3 is independently —O(AO)nH,
- wherein each AO group is, independently, an alkyleneoxy group selected from ethyleneoxy (“EO”), propyleneoxy (“PO”), butyleneoxy (“BO”), and combinations thereof,
- wherein each n is independently 52 to 150,
- wherein the silica coagulant has a molecular weight above 7,000,
- wherein the silica coagulant is soluble in water at a weight ratio of silica coagulant to water of about 54% or higher,
- contacting the silica coagulant and the silica particles in the aqueous mineral process stream to form agglomerated silica particles.
4 more elements
Dependencies are inferred from the claim text.