The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 1980
Filed:
Feb. 23, 1978
Thomas W Boulton, Runcorn, GB;
Brian J Darwent, Runcorn, GB;
Imperial Chemical Industries Limited, London, GB;
Abstract
A monopolar filter press electrolytic cell for use in the electrolysis of alkali metal halide brine to produce cell liquor, halogen and hydrogen the cell comprising a plurality of anode plates and cathode plates and a hydraulically permeable diaphragm positioned between each adjacent anode plate and cathode plate, and comprising at least one spacing plate of a non-conducting material positioned between each anode plate and adjacent diaphragm and between each cathode plate and adjacent diaphragm, the anode plates, cathode plates and spacing plates being provided with at least two openings in the faces of the plates which in combination define a first compartment lengthwise of the cell separated from the second compartment, the spacing plates between the anode and adjacent diaphragm being provided with at least one passage which permits brine to pass between the first compartment and the anolyte compartments and which permits halogen to be released from the anolyte compartments to the first compartment, and the spacing plates between the cathodes and adjacent diaphragms being provided with at least one passage which permits cell liquor and hydrogen to pass from the catholyte compartments to the second compartment, the anode plates and cathodes plates being made in part of a non-conducting material so that the first and second compartments are electrically insulated from one another.