发明名称 |
Aqueous phosphate-stabilized polyaluminum sulfate solutions and preparation thereof |
摘要 |
A physically and functionally stable solution for water treatment comprises an about 1.2-2.7 molar aqueous phosphate-stabilized polyaluminum sulfate solution of a composition having the formula Al(OH)x(SO4)y(H2PO4)z wherein x is about 1.2 to 1.62; y is about 0.595 to 0.87; and z is about 0.06 to 0.19 with the proviso that the sum of x+2y+z is 3. The aqueous phosphate-stabilized polyaluminum sulfate solution can be prepared by reacting alumina hydrate with phosphoric acid and contacting the reacted alumina hydrate with an aqueous polyaluminum sulfate solution. Alternatively, the aqueous phosphate-stabilized polyaluminum sulfate solution can be prepared by reacting an aqueous overbasified polyaluminum sulfate phosphate solution with an aqueous aluminum sulfate solution.
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申请公布号 |
US4284611(A) |
申请公布日期 |
1981.08.18 |
申请号 |
US19790060260 |
申请日期 |
1979.07.25 |
申请人 |
ALLIED CHEMICAL CORPORATION |
发明人 |
GANCY, ALAN B.;WAMSER, CHRISTIAN A. |
分类号 |
C01F7/00;C02F1/52;(IPC1-7):C01B25/36 |
主分类号 |
C01F7/00 |
代理机构 |
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