Chemistry of inorganic compounds – Halogen or compound thereof – Plural metal or metal and ammonium containing
Patent
1997-03-10
1999-03-09
Nguyen, Ngoc-Yen
Chemistry of inorganic compounds
Halogen or compound thereof
Plural metal or metal and ammonium containing
423556, 423600, 423467, 210723, C01F 700, C01F 768
Patent
active
058796517
ABSTRACT:
The present invention relates to a process for the preparation of basic polyaluminium chlorosulphates. This process consists, after basification, in carrying out cooking at a temperature between 60.degree. C. and 95.degree. C. such that the cooking time is proportionately shorter than the higher cooking temperature. The polychlorosulphates obtained according to the process of the invention can be used for the treatment of drinking water, effluents and in the paper industry.
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Patent Abstracts of Japan, vol. 002, No. 015 (C-002), 31 Jan. 1978, JP-A-52 113384.
Patent Abstracts of Japan, vol. 002, No. 046 (C-009), 28 Mar. 1978, JP-A-53 001699.
Elf Atochem S.A.
Nguyen Ngoc-Yen
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