Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1980-02-28
1981-09-01
Andrews, R. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204282, C25B 900
Patent
active
042870461
ABSTRACT:
A process for treating an electrolytic solution to recover a concentrated solution from a dilute one in an electrolytic cell or in each of such cells divided by a permeable diaphragm into a feed chamber and a recovery chamber provided, respectively, with positive and negative electrodes or vice versa. A dilute electrolytic solution is fed to the feed chamber, and, while electrolysis is in progress between the electrode of the feed chamber and the electrode held in the recovery chamber in close proximity to, or in intimate contact with, the diaphragm, the electrolyzed solution is allowed to exude through the diaphragm into the recovery chamber, whereby the concentrated solution is extracted into the latter chamber. In the apparatus for practicing the process, either the negative or positive electrode is held in the feed chamber and the other electrode is held in the recovery chamber in close proximity to, or in intimate contact with, the diaphragm. The feed chamber is provided with an inlet for the electrolytic solution to be treated and also with an outlet for the treated solution. The recovery chamber is provided with a jet means for injecting, at the start of the electrolysis, part of the electrolytic solution to be treated against the diaphragm and the latter electrode, a gas outlet through which the gas generated at the electrode during the electrolysis is released, and an acid outlet through which a concentrated electrolytic solution that has exuded into the recovery chamber as a result of the electrolytic treatment is taken out of the vessel.
REFERENCES:
patent: B361744 (1975-01-01), Gritzner
patent: 3761369 (1973-09-01), Tirrell
patent: 3964990 (1976-06-01), Woyden
patent: 4028212 (1977-06-01), Bowen et al.
patent: 4098668 (1978-07-01), Andersen et al.
patent: 4144145 (1979-03-01), Watanabe et al.
Sakanishi Akihiro
Ueda Kenji
Andrews R. L.
Mitsubishi Jukogyo Kabushiki Kaisha
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