Crystallization of polyaluminium hydroxide complexes

Details Crystallization of polyaluminium hydroxide complexes Crystallization of polyaluminium hydroxide complexes

1983-11-17

1985-12-17

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423629, 423128, 23305A, C01F 1146, C01F 756

Patent

active

045592209

ABSTRACT:
The present invention relates to a method for producing a polyaluminium hydroxide complex of a chloride and sulphate type in solid form, an aqueous solution of the polyaluminium hydroxide complex being admixed with at least one water-miscible organic solvent having 1-4 C, the weight ratio of the aqueous solution to the solvent being at least 1:0.70, preferably 1:1-2, to crystallize the complex.
The method provides a highly stable, amorphous crystalline product.

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patent: 4021528 (1977-05-01), Schlegel
patent: 4059681 (1977-11-01), Hem et al.
patent: 4083933 (1978-04-01), Schlegel
patent: 4098883 (1978-07-01), Madaus
patent: 4238347 (1980-12-01), Gancy et al.
patent: 4242328 (1980-12-01), Hem et al.
Skoog et al, Fundamentals of Analytical Chemistry, Holt, Rinehart & Winston, N.Y., N.Y., 1963, pp. 151-152.

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