ES456054A1 - Manufacture of chlorine and sodium carbonate by electrolysis - Google Patents

Manufacture of chlorine and sodium carbonate by electrolysis

Info

Publication number
ES456054A1
ES456054A1 ES456054A ES456054A ES456054A1 ES 456054 A1 ES456054 A1 ES 456054A1 ES 456054 A ES456054 A ES 456054A ES 456054 A ES456054 A ES 456054A ES 456054 A1 ES456054 A1 ES 456054A1
Authority
ES
Spain
Prior art keywords
solution
sodium carbonate
sodium
chlorine
sodium hydroxide
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
ES456054A
Other languages
Spanish (es)
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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of ES456054A1 publication Critical patent/ES456054A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/12—Preparation of carbonates from bicarbonates or bicarbonate-containing product

Abstract

Process for making chlorine and sodium carbonate decahydrate, whereby an aqueous solution of sodium chloride is electrolyzed so that chlorine and an aqueous solution of sodium hydroxide are produced, the aqueous sodium hydroxide solution is carbonated, the resulting carbonated solution is cooled and a precipitate of sodium carbonate decahydrate and mother liquor is separated, characterized in that the electrolysis of the aqueous solution of sodium chloride is carried out in a selective permeability membrane cell, the resulting aqueous sodium hydroxide solution is mixed with a bicarbonated solution, obtain a sodium carbonate solution which is cooled to precipitate sodium carbonate decahydrate, the precipitate is separated from the mother liquor, these are heated and treated with a gas containing carbon dioxide, so as to obtain the bicarbonate solution which is mixed with the sodium hydroxide solution, to carbonate the, as indicated before. (Machine-translation by Google Translate, not legally binding)
ES456054A 1976-02-19 1977-02-18 Manufacture of chlorine and sodium carbonate by electrolysis Expired ES456054A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7604988A FR2341670A1 (en) 1976-02-19 1976-02-19 PROCESS FOR THE PRODUCTION OF CHLORINE AND DECAHYDRATED SODIUM CARBONATE

Publications (1)

Publication Number Publication Date
ES456054A1 true ES456054A1 (en) 1978-02-16

Family

ID=9169482

Family Applications (1)

Application Number Title Priority Date Filing Date
ES456054A Expired ES456054A1 (en) 1976-02-19 1977-02-18 Manufacture of chlorine and sodium carbonate by electrolysis

Country Status (7)

Country Link
BE (1) BE851457A (en)
DE (1) DE2706858A1 (en)
ES (1) ES456054A1 (en)
FR (1) FR2341670A1 (en)
GB (1) GB1554033A (en)
IT (1) IT1074320B (en)
NL (1) NL7701150A (en)

Also Published As

Publication number Publication date
IT1074320B (en) 1985-04-20
BE851457A (en) 1977-08-16
FR2341670A1 (en) 1977-09-16
DE2706858A1 (en) 1977-08-25
GB1554033A (en) 1979-10-17
NL7701150A (en) 1977-08-23
FR2341670B1 (en) 1979-07-20

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