GB1030969A - Improvements in or relating to the preparation of weak acids from their salts by electrodialysis - Google Patents

Improvements in or relating to the preparation of weak acids from their salts by electrodialysis

Info

Publication number
GB1030969A
GB1030969A GB1789064A GB1789064A GB1030969A GB 1030969 A GB1030969 A GB 1030969A GB 1789064 A GB1789064 A GB 1789064A GB 1789064 A GB1789064 A GB 1789064A GB 1030969 A GB1030969 A GB 1030969A
Authority
GB
United Kingdom
Prior art keywords
salt
acid
catholyte
salts
preparation
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
GB1789064A
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 GB1789064A priority Critical patent/GB1030969A/en
Priority to DE1965U0011666 priority patent/DE1277215B/en
Priority to FR15213A priority patent/FR1430844A/en
Publication of GB1030969A publication Critical patent/GB1030969A/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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Electrochemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

In the preparation of a weak acid from a salt of the acid which is initially free of salts of stronger acids, an aqueous solution of the salt of the weak acid and a salt of a stronger acid is used as anolyte in a cell separated from the catholyte by a cationic perselective membrane. The process may be applied to producing acids from solutions of a borate, e.g. borax, tartrate or maleate and the stronger acid salt is preferably sodium sulphate which is present in sufficient concentration to provide at the end of the process a conductivity equal to that of a solution of the weak acid salt alone. The catholyte is preferably an aqueous solution of an alkali metal carbonate or bicarbonate. Both anolyte and catholyte may be removed batchwise or, if desired, continuously.
GB1789064A 1964-04-29 1964-04-29 Improvements in or relating to the preparation of weak acids from their salts by electrodialysis Expired GB1030969A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1789064A GB1030969A (en) 1964-04-29 1964-04-29 Improvements in or relating to the preparation of weak acids from their salts by electrodialysis
DE1965U0011666 DE1277215B (en) 1964-04-29 1965-04-27 Process for the electrolytic production of weak acids
FR15213A FR1430844A (en) 1964-04-29 1965-04-29 Preparation of acids by electrolysis of their salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1789064A GB1030969A (en) 1964-04-29 1964-04-29 Improvements in or relating to the preparation of weak acids from their salts by electrodialysis

Publications (1)

Publication Number Publication Date
GB1030969A true GB1030969A (en) 1966-05-25

Family

ID=10103031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1789064A Expired GB1030969A (en) 1964-04-29 1964-04-29 Improvements in or relating to the preparation of weak acids from their salts by electrodialysis

Country Status (2)

Country Link
DE (1) DE1277215B (en)
GB (1) GB1030969A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000001653A1 (en) * 1998-07-07 2000-01-13 E.I. Du Pont De Nemours And Company A process for the isolation of aromatic hydroxycarboxylic acids

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819884A1 (en) 1998-05-04 1999-11-11 Metallgesellschaft Ag Recovery of tartaric acid from material containing K hydrogen tartrate (KHT), e.g. wine yeast or tartar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000001653A1 (en) * 1998-07-07 2000-01-13 E.I. Du Pont De Nemours And Company A process for the isolation of aromatic hydroxycarboxylic acids
US6471844B1 (en) 1998-07-07 2002-10-29 E. I. Du Pont De Nemours And Company Process for the isolation of aromatic hydroxycarboxylic acids

Also Published As

Publication number Publication date
DE1277215B (en) 1968-09-12

Similar Documents

Publication Publication Date Title
JPS5622956B2 (en)
ES8403983A1 (en) Preparing alkali metal hydroxide by water splitting and hydrolysis.
GB1030969A (en) Improvements in or relating to the preparation of weak acids from their salts by electrodialysis
GB1513109A (en) Method for concentrating aqueous caustic alkali solution
RU94030732A (en) Method of alkaline metal carbonate producing, method of sodium carbonate producing
RU92016631A (en) METHOD FOR PRODUCING AQUEOUS SOLUTION SOLUTION CONTAINING CHLORATE IONS, METHOD FOR ELECTROCHEMICAL TREATMENT OF AQUEOUS SOLUTION OF ALKALI METAL SALT MIXTURE
GB659494A (en) A process for the recovery of products which do not dialyse or dialyse only slowly from a liquid contaminated with inorganic substances
GB1042460A (en) An improved method of evaporating caustic
SE7607989L (en) PROCEDURE FOR THE PRODUCTION OF AQUATIC ALCOHOLIC HYDROXIDE SOLUTION
GB613080A (en) Improvements in the preparation of stable medicinal salts of acetylsalicylic acid
GB757449A (en) Process for fractionating starch
GB791680A (en) Manufacture of aqueous solutions of chlorous acid
GB882263A (en) A method for the production of citric acid
GB653993A (en) Process of producing silicic acid from alkali silicates
GB887012A (en) Process for the preparation of 18ª--glycyrrhetinic acid
GB170911A (en) Improvements in and relating to the production of solutions containing aluminium formate and an alkali salt
ES382547A1 (en) Hydromagnesite having a modified morphology and method for the preparation thereof
GB954089A (en) A process for the production of alkali metal pertitanates and perzirconates
GB845544A (en) Improvements in and relating to the concentration of solutions
GB471726A (en) An improved process for concentrating aqueous formaldehyde solutions
GB563136A (en) A method of producing stable hypochlorite solutions
JPS51138597A (en) New device of e lectrolytic bath
GB1464794A (en) Method of preparing globules containing an actinide metal
GB969815A (en) Process for the production of trans-dec-2-en-9-one-1-acid
GB729625A (en) Improvements in or relating to the preparation of non-odorous 2-methyl-4-chlorophenoxyacetic acid and its application as a selective weed-killer