C - Chemistry – Metallurgy – 01 – D
Patent
C - Chemistry, Metallurgy
01
D
23/385, 23/99
C01D 5/02 (2006.01) B01J 6/00 (2006.01) C01B 7/03 (2006.01) C01D 17/00 (2006.01)
Patent
CA 1177222
ABSTRACT OF THE DISCLOSURE An apparatus is disclosed for producing an alkali metal salt of a mineral acid, characterized by the provision of a specific agitating means, said agitating means having a pair of shafts adapted to contra-rotate and a plurality of columnar agitating elements securely attached to each of said pair of shafts and being so constructed that it forcibly causes the migration of the reaction mixture at least in the region where the liquid phase of the reaction mixture is substantially con- tinuous and forcibly causes the kneading of the reaction mixture at least in the region where the solid phase of the reaction mixture is substantially continuous. A process is also disclosed for producing an alkali metal salt of a mineral acid, characterized in that the reaction between an alkali metal chloride and a mineral acid is effected in the apparatus as described above while allowing the state of the reaction mixture to be transferred from a slurry or capillary state to a pendular or dry state via a funicular II state and a funicular I state with the progress of the reaction; that the reaction mixture is impelled to migrate at least in a region ranging from the zone in which the reaction mixture assumes a capillary state to the zone in which the reaction mixture assumes a funicular I state; and that the reaction mixture is forcibly kneaded at least in a region ranging from the zone in which the reaction mixture assumes a pendular II state to the zone in which the reaction mixture assumes a pendular state. Thereby, a desired product can be continuously, stably obtained with high efficiency.
386649
Hayashi Kenichi
Iwashita Hidemaro
Kiura Yoshinori
Mieno Fumiaki
Asahi Kasei Kogyo Kabushiki Kaisha
Macrae & Co.
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