Basic metal hydroxysulfate complex in solid form and a...

Details Basic metal hydroxysulfate complex in solid form and a... Basic metal hydroxysulfate complex in solid form and a...

C - Chemistry, Metallurgy

01

F

134/37, 23/87

C01F 7/04 (2006.01) C01F 7/76 (2006.01) C01G 49/14 (2006.01) C02F 5/08 (2006.01)

Patent

CA 1272010

ABSTRACT The invention provides a method of producing a product containing calcium sulfate hemihydrate and polynucleate basic metal hydroxysulfate complex in solid form which provides a positively charged polynucleate complex possessing charge neutralizing properties in systems containing suspended or colloidal negatively charged particles when dissolved in water. The method comprises mixing a molten aluminum or iron III sulfate and a calcium compound taken from the group consisting of Ca(OH)2, CaO, CaCO3 and CaMg(CO3)2. After cooling, a product is formed containing polymetal hydroxysulfate complex and calcium sulfate hemihydrate.

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