Electrochemical purification of chlor-alkali cell liquor

Details Electrochemical purification of chlor-alkali cell liquor Electrochemical purification of chlor-alkali cell liquor

1981-07-29

1984-04-24

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

204 98, 204128, 204222, 204258, 204266, 204283, 204284, 204292, 204291, 204296, 204130, C25B 126, C25B 900, C25B 1103, C25B 1108

Patent

active

044446314

ABSTRACT:
An apparatus is provided for reducing the amount of alkali metal chlorate present in the cell liquor from a chlor-alkali cell, said apparatus comprising an electrochemical cell having at least one cathode element and one anode element, a cationic exchange membrane disposed between the anode and cathode elements, and an inlet for introducing chlorate-containing cell liquor and an outlet for removing purified cell liquor, inlet and outlet means for anolyte solution, and means for removing gaseous reaction products. The cathode element of said electrochemical cell is of a high surface area construction, preferably formed from compressed filaments of a ferrous material, such as iron or steel, and having sufficient porosity to permit the flow of cell liquor through the cathode. Preferably, when a plurality of anode and cathode elements are used, these elements are arranged in a staggered configuration in the apparatus to maximize the flow path of alkali metal chloride cell liquor through the apparatus. The purified cell liquor product of said electrochemical cell has a significantly reduced alkali metal chlorate content.

REFERENCES:
patent: 3969201 (1976-07-01), Oloman et al.
patent: 4090931 (1978-05-01), Motani et al.
patent: 4126534 (1978-11-01), Boulton
patent: 4127457 (1978-11-01), Krumpelt et al.
patent: 4147600 (1979-04-01), Rutherford et al.
patent: 4170536 (1979-10-01), Kawasaki et al.
patent: 4197179 (1980-04-01), Ezzell et al.
patent: 4230544 (1980-10-01), McRae
patent: 4246078 (1981-01-01), Broniewski
patent: 4313805 (1982-02-01), Burney et al.

Affiliated with

Also associated with

Rating

Electrochemical purification of chlor-alkali cell liquor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrochemical purification of chlor-alkali cell liquor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochemical purification of chlor-alkali cell liquor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-114442