GB422689A - Process for the joint production of a caustic soda lye, poor in sodium chloride, and of glauber salt - Google Patents

Process for the joint production of a caustic soda lye, poor in sodium chloride, and of glauber salt

Info

Publication number
GB422689A
GB422689A GB20812/34A GB2081234A GB422689A GB 422689 A GB422689 A GB 422689A GB 20812/34 A GB20812/34 A GB 20812/34A GB 2081234 A GB2081234 A GB 2081234A GB 422689 A GB422689 A GB 422689A
Authority
GB
United Kingdom
Prior art keywords
salt
glauber
caustic soda
sodium chloride
poor
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
GB20812/34A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB422689A publication Critical patent/GB422689A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/16—Purification
    • 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
    • C25B1/14—Alkali metal compounds

Abstract

Caustic soda lye poor in sodium chloride, and Glauber's salt are produced simultaneously by treating crude brine with sodium carbonate to precipitate calcium and magnesium, electrolyzing the brine containing sodium sulphate, concentrating the resultant caustic soda lye to deposit sodium chloride containing sulphate which is washed to remove the sodium sulphate and the solution concentrated and cooled to deposit Glauber's salt. The washed sodium chloride is returned to the electrolysis together with the Glauber's salt mother liquor. Part of the Glauber's salt is reacted with warm concentrated caustic soda lye to form a triple salt containing NaCl, Na2SO4 and NaOH which is precipitated, leaving a lye poor in chloride. This triple salt is dissolved in water and Glauber's salt, which can be re-used in the process, deposited by freezing, the resultant solution being treated with carbon dioxide or gases containing the same to yield a sodium carbonate solution used for purifying the brine.
GB20812/34A 1933-08-19 1934-07-16 Process for the joint production of a caustic soda lye, poor in sodium chloride, and of glauber salt Expired GB422689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE422689X 1933-08-19

Publications (1)

Publication Number Publication Date
GB422689A true GB422689A (en) 1935-01-16

Family

ID=6465523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20812/34A Expired GB422689A (en) 1933-08-19 1934-07-16 Process for the joint production of a caustic soda lye, poor in sodium chloride, and of glauber salt

Country Status (1)

Country Link
GB (1) GB422689A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376907A1 (en) * 1977-01-06 1978-08-04 Kestner App Evaporateurs Extn. of Glauber's salt and common salt from lye of diaphragm cells - gives useful by=products and allows recycling of the lye
US4586993A (en) * 1985-05-31 1986-05-06 Stearns Catalytic World Corporation Control of sulfates in membrane cell chlor-alkali process
CN101898770A (en) * 2010-06-03 2010-12-01 中南大学 Method for recycling sodium hydroxide
CN110282637A (en) * 2019-07-30 2019-09-27 南京纳亿工程技术有限公司 A method of improving Galuber's salt type brine dosage in ion film caustic soda processed
CN112479421A (en) * 2020-11-10 2021-03-12 西安西热水务环保有限公司 High-hardness wastewater softening and resource recycling system and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376907A1 (en) * 1977-01-06 1978-08-04 Kestner App Evaporateurs Extn. of Glauber's salt and common salt from lye of diaphragm cells - gives useful by=products and allows recycling of the lye
US4586993A (en) * 1985-05-31 1986-05-06 Stearns Catalytic World Corporation Control of sulfates in membrane cell chlor-alkali process
CN101898770A (en) * 2010-06-03 2010-12-01 中南大学 Method for recycling sodium hydroxide
CN110282637A (en) * 2019-07-30 2019-09-27 南京纳亿工程技术有限公司 A method of improving Galuber's salt type brine dosage in ion film caustic soda processed
CN110282637B (en) * 2019-07-30 2024-01-26 南京纳亿工程技术有限公司 Method for increasing usage amount of mirabilite type brine in ion membrane caustic soda production
CN112479421A (en) * 2020-11-10 2021-03-12 西安西热水务环保有限公司 High-hardness wastewater softening and resource recycling system and method

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