C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
C01F 7/76 (2006.01) C01F 7/00 (2006.01) C02F 1/52 (2006.01)
Patent
CA 2199530
The invention involves a process for preparing basic aluminum polychlorosulphates. After basification, the process consists of burning at a temperature between 60 and 95°C such that the burning time becomes shorter as the burning temperature is raised. The polychlorosulphates obtained using the process can be used in the paper industry and to treat drinking water and effluent.
La présente invention a pour objet un procédé de préparation de polychlorosulfates basique d'aluminium. Ce procédé consiste à effectuer après basification une cuisson à une température comprise entre 60°C et 95°C d'une façon telle que la durée de cuisson est d'autant plus courte que la température de cuisson est élevée. Les polychlorosulfates obtenus selon le procédé de l'invention sont utilisables pour le traitement des eaux potables, des effluents et dans l'industrie papetière.
Elf Atochem S.a.
Robic
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