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AssigneeSolenis Technologies, L.P.
InventorsKirill N. Bakeev, Andrew M. DiMaio
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Formation of CaSO4 and Fe2O3 containing deposits is reduced in a pressure oxidation autoclave and/or adjacent circuits during pressure oxidation of gold-containing ore. The gold-containing ore is combined with water to create an aqueous slurry that is heated and introduced into the autoclave. The method includes providing a scale inhibitor that is free of an organic polymer and includes an inorganic phosphate according to formula (I), (XPO3)m, wherein X is Na, K, H, or combinations thereof, and m is at least about 6, an inorganic phosphate according to formula (II), Yn+2PnO3n+1, wherein Y is Na, K, H, an organic phosphonate; or combinations thereof, and n is at least about 6. The method includes the step of combining the scale inhibitor and at least one of the gold-containing ore, the water, and the aqueous slurry to reduce scale.
A method for reducing formation of CaSO4 and Fe2O3 containing deposits in a pressure oxidation autoclave and/or adjacent circuits during pressure oxidation of gold-containing ore, wherein the gold-containing ore is combined with water to create an aqueous slurry that is heated and introduced into the pressure oxidation autoclave, said method comprising:
A composition for reducing CaSO4 and Fe2O3 containing deposit in a pressure oxidation autoclave and/or adjacent circuits during pressure oxidation of gold-containing ore, said composition comprising:
A system for reducing formation of CaSO4 and Fe2O3 containing deposit in a pressure oxidation autoclave and/or adjacent circuits during pressure oxidation of gold-containing ore, said system comprising:
Dependencies are inferred from the claim text.