GB1022395A - Electrolytic preparation of boric acid - Google Patents

Electrolytic preparation of boric acid

Info

Publication number
GB1022395A
GB1022395A GB4029363A GB4029363A GB1022395A GB 1022395 A GB1022395 A GB 1022395A GB 4029363 A GB4029363 A GB 4029363A GB 4029363 A GB4029363 A GB 4029363A GB 1022395 A GB1022395 A GB 1022395A
Authority
GB
United Kingdom
Prior art keywords
boric acid
compartment
salt
anode
cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4029363A
Inventor
David Lionel Perryer
Geoffrey John Charles Higgs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Borax Inc
Original Assignee
United States Borax and Chemical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Borax and Chemical Corp filed Critical United States Borax and Chemical Corp
Priority to GB4029363A priority Critical patent/GB1022395A/en
Publication of GB1022395A publication Critical patent/GB1022395A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/22—Inorganic acids

Abstract

A process for the preparation of boric acid comprises electrolysing an aqueous solution of a salt of boric acid (e.g. an alkali metal or ammonium salt such as Na2O.2B2O3 or one of its hydrates) contained in a compartment of an electrolytic cell separated from the cathode of the cell by a cationic permselective membrane and from the anode of the cell by an anionic permselective membrane, whereby the cations of the salt of boric acid are caused to migrate into the cathode compartment which contains an aqueous solution of an hydroxide (e.g. NaOH), and the borate ions of the salt of boric acid are caused to migrate into the anode compartment of the cell which contains an aqueous electrolyte (e.g. a small quantity of H2SO4 or Na2SO4), boric acid subsequently being separated from the contents of the anode compartment (e.g. by crystallization, distillation or solvent extraction). The central compartment may contain either a mixed cationic/anionic or an anionic or cationic ion exchange resin. The cathode may be of stainless steel and the anode of Pt, platinized Ti, a Pt-containing alloy, C or Pb. Working temperatures between ambient and 50 DEG C. may be used. The process may be operated continuously.
GB4029363A 1963-10-11 1963-10-11 Electrolytic preparation of boric acid Expired GB1022395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4029363A GB1022395A (en) 1963-10-11 1963-10-11 Electrolytic preparation of boric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4029363A GB1022395A (en) 1963-10-11 1963-10-11 Electrolytic preparation of boric acid

Publications (1)

Publication Number Publication Date
GB1022395A true GB1022395A (en) 1966-03-09

Family

ID=10414167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4029363A Expired GB1022395A (en) 1963-10-11 1963-10-11 Electrolytic preparation of boric acid

Country Status (1)

Country Link
GB (1) GB1022395A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221751A1 (en) * 1985-10-25 1987-05-13 Tosoh Corporation Method for separating an acid and an alkali from an aqueous solution of a salt
EP0392875A1 (en) * 1989-04-14 1990-10-17 Cominco Ltd. Method for separating dissolved species by electrodialysis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221751A1 (en) * 1985-10-25 1987-05-13 Tosoh Corporation Method for separating an acid and an alkali from an aqueous solution of a salt
EP0392875A1 (en) * 1989-04-14 1990-10-17 Cominco Ltd. Method for separating dissolved species by electrodialysis

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