FR2005347A7 - Production of potassium salts and magnesium oxide - from complex minerals - Google Patents

Production of potassium salts and magnesium oxide - from complex minerals

Info

Publication number
FR2005347A7
FR2005347A7 FR6908979A FR6908979A FR2005347A7 FR 2005347 A7 FR2005347 A7 FR 2005347A7 FR 6908979 A FR6908979 A FR 6908979A FR 6908979 A FR6908979 A FR 6908979A FR 2005347 A7 FR2005347 A7 FR 2005347A7
Authority
FR
France
Prior art keywords
potassium salts
production
magnesium oxide
mgcl2
minerals
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
FR6908979A
Other languages
French (fr)
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.)
COMBINATUL INGRASAMINTE
Original Assignee
COMBINATUL INGRASAMINTE
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 COMBINATUL INGRASAMINTE filed Critical COMBINATUL INGRASAMINTE
Application granted granted Critical
Publication of FR2005347A7 publication Critical patent/FR2005347A7/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
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/04—Chlorides
    • C01D3/08—Preparation by working up natural or industrial salt mixtures or siliceous minerals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/26—Magnesium halides
    • C01F5/30—Chlorides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Fertilizers (AREA)

Abstract

Production of potassium salts and magnesium oxide from complex minerals. F6A. The crude minerals are calcined at 150-700 degrees C, pref. 550 degrees C in the presence of CaCl2 in an amount sufficient to convert K2SO4 into KCl and MgSO4 into MgCl2 with formation of sparingly soluble CaSO4. Soluble salts are extracted from the calcination residue, the potassium salts separated and the residual solution, containing MgCl2, is treated with calcined dolomite, Ca(OH)2, Mg(OH)2, in an amount sufficient to convert MgCl2 into Mg(OH)2 which is separated and converted into MgO.
FR6908979A 1968-04-02 1969-03-26 Production of potassium salts and magnesium oxide - from complex minerals Expired FR2005347A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO5631968 1968-04-02

Publications (1)

Publication Number Publication Date
FR2005347A7 true FR2005347A7 (en) 1969-12-12

Family

ID=20086673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6908979A Expired FR2005347A7 (en) 1968-04-02 1969-03-26 Production of potassium salts and magnesium oxide - from complex minerals

Country Status (2)

Country Link
DE (1) DE1914311A1 (en)
FR (1) FR2005347A7 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003429B1 (en) * 1978-01-26 1982-06-09 Lonrho Limited Production of alkali metal chlorides

Also Published As

Publication number Publication date
DE1914311A1 (en) 1969-12-04

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