发明名称 |
Aqueous basic polyaluminum-iron halide solutions |
摘要 |
Aqueous basic polyaluminum-iron halide solutions, useful as coagulants in waste water treatment are disclosed. The polyaluminum-iron halide solution is prepared by reacting an aqueous polyaluminum halide solution with one or more members of the group consisting of ferrous halide and ferric halide resulting in a solution containing a concentration of metal ions ranging from about 1.35 to 4.5 mol/liter as a dissolved salt of the formula Al1-xFexIIIFeyII(OH)3+2y-zHalz wherein Hal is chlorine, bromine, iodine or mixtures thereof; (x+y)/(1-x) is about 0.2 to 1.5; 3+2y-z/3+2y is about 0.24 to 0.67; and z is less than 3+2y. Alternatively, the coagulant solution is prepared by reacting an aqueous aluminum halide solution or low basic polyaluminum halide solution with iron. Preferably the halide employed is chloride.
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申请公布号 |
US4362643(A) |
申请公布日期 |
1982.12.07 |
申请号 |
US19800218984 |
申请日期 |
1980.12.22 |
申请人 |
ALLIED CORPORATION |
发明人 |
KUO, VINCENT H. S.;WAMSER, CHRISTIAN A. |
分类号 |
C01G49/00;C02F1/52;(IPC1-7):C02F1/20 |
主分类号 |
C01G49/00 |
代理机构 |
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