FR2236784B1 - - Google Patents

Info

Publication number
FR2236784B1
FR2236784B1 FR7325453A FR7325453A FR2236784B1 FR 2236784 B1 FR2236784 B1 FR 2236784B1 FR 7325453 A FR7325453 A FR 7325453A FR 7325453 A FR7325453 A FR 7325453A FR 2236784 B1 FR2236784 B1 FR 2236784B1
Authority
FR
France
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
FR7325453A
Other languages
French (fr)
Other versions
FR2236784A1 (en
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.)
WHITING FERMONT
Original Assignee
WHITING FERMONT
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 WHITING FERMONT filed Critical WHITING FERMONT
Priority to FR7325453A priority Critical patent/FR2236784A1/fr
Priority to IT4683474A priority patent/IT1024126B/it
Priority to DE19742432808 priority patent/DE2432808C3/de
Publication of FR2236784A1 publication Critical patent/FR2236784A1/fr
Application granted granted Critical
Publication of FR2236784B1 publication Critical patent/FR2236784B1/fr
Granted 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
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/42—Concentration; Dehydration
    • 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
    • C01D1/28—Purification; Separation
    • C01D1/30—Purification; Separation by crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7325453A 1973-07-11 1973-07-11 Sodium hydroxide soln. concn. by multi-stage evapn. - with sepn. of sodium chloride from sulphate Granted FR2236784A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7325453A FR2236784A1 (en) 1973-07-11 1973-07-11 Sodium hydroxide soln. concn. by multi-stage evapn. - with sepn. of sodium chloride from sulphate
IT4683474A IT1024126B (it) 1973-07-11 1974-07-09 Procedimento di concentrazione di un liquore di soda caustica
DE19742432808 DE2432808C3 (de) 1973-07-11 1974-07-09 Verfahren zur Konzentrierung einer natriumchlorid- und natriumsulfathaltigen Ätznatronlauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325453A FR2236784A1 (en) 1973-07-11 1973-07-11 Sodium hydroxide soln. concn. by multi-stage evapn. - with sepn. of sodium chloride from sulphate

Publications (2)

Publication Number Publication Date
FR2236784A1 FR2236784A1 (en) 1975-02-07
FR2236784B1 true FR2236784B1 (de) 1977-09-16

Family

ID=9122420

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325453A Granted FR2236784A1 (en) 1973-07-11 1973-07-11 Sodium hydroxide soln. concn. by multi-stage evapn. - with sepn. of sodium chloride from sulphate

Country Status (3)

Country Link
DE (1) DE2432808C3 (de)
FR (1) FR2236784A1 (de)
IT (1) IT1024126B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305393A1 (fr) * 1975-03-28 1976-10-22 Rhone Poulenc Ind Nouveau procede d'obtention de soude caustique a partir d'une lessive chlorurosodee, renfermant des ions sulfate, fournie par une cellule d'electrolyse
JPS53113299A (en) * 1977-03-15 1978-10-03 Asahi Glass Co Ltd Method of concentrating caustic alkaline sulution for ion exchange membrane electrolysis
DE3302809A1 (de) * 1983-01-28 1984-08-02 Chemische Werke Hüls AG, 4370 Marl Verfahren zum zersetzen naoh-haltiger mehrfachsalze

Also Published As

Publication number Publication date
DE2432808C3 (de) 1980-10-09
DE2432808B2 (de) 1980-02-21
IT1024126B (it) 1978-06-20
FR2236784A1 (en) 1975-02-07
DE2432808A1 (de) 1975-01-30

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse