Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing inorganic compound
Patent
1996-05-24
1998-07-07
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing inorganic compound
205531, 205535, 205638, 204258, 204283, 204290R, 204290F, C25B 110, C25B 122, C25B 900, C25B 1103
Patent
active
057763283
ABSTRACT:
Electrolyzer for the electrolysis of a solution of a salt for the production of a solution containing an acid and a solution of a base, said electrolyzer comprising at least one elementary cell divided into three compartments by two cation-exchange membranes, the first of said compartments contains the first of said membranes and a cathode for hydrogen evolution and the production of the base, a central compartment is defined by said cation-exchange membranes and has an inlet for the solution of the salt and has an outlet for the withdrawal of the solution containing the acid, a third compartment contains the second of said cation exchange membranes and an anode, said anode comprises a porous electrocatalytic sheet for hydrogen ionization and a porous rigid current collector, said third compartment further has an inlet for a hydrogen-containing gaseous stream and an outlet for the venting of the rest of gas characterized in that said current collector has a multiplicity of contact points and said porous electrocatalytic sheet is flexible and is held in contact with said second membrane and said rigid current collector by pressure without bonding.
REFERENCES:
patent: 4076604 (1978-02-01), Murayama et al.
patent: 4212712 (1980-07-01), Murayama et al.
patent: 4214958 (1980-07-01), Coker et al.
patent: 4299673 (1981-11-01), Broniewski
Faita Giuseppe
Traini Carlo
De Nora Permelec S.p.A.
Valentine Donald R.
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