FR2209719A1 - Alumina and potassium sulphate prodn. from alunite - with high yields, using an alkali soln. - Google Patents

Alumina and potassium sulphate prodn. from alunite - with high yields, using an alkali soln.

Info

Publication number
FR2209719A1
FR2209719A1 FR7339507A FR7339507A FR2209719A1 FR 2209719 A1 FR2209719 A1 FR 2209719A1 FR 7339507 A FR7339507 A FR 7339507A FR 7339507 A FR7339507 A FR 7339507A FR 2209719 A1 FR2209719 A1 FR 2209719A1
Authority
FR
France
Prior art keywords
alunite
alumina
prodn
sodium
treating
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.)
Granted
Application number
FR7339507A
Other languages
French (fr)
Other versions
FR2209719B1 (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.)
INST ALJUMINIEVOI
Original Assignee
INST ALJUMINIEVOI
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 INST ALJUMINIEVOI filed Critical INST ALJUMINIEVOI
Publication of FR2209719A1 publication Critical patent/FR2209719A1/en
Application granted granted Critical
Publication of FR2209719B1 publication Critical patent/FR2209719B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0686—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process from sulfate-containing minerals, e.g. alunite
    • 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
    • C01D5/008—Preparation of potassium sulfate from alunite

Landscapes

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

Abstract

Alunite is treated with an alkali soln. containing excess sodium ions, pref. at least 70% of the total sodium and potassium ions, to produce sodium and potassium sulphates and aluminates; pttn. of the sulphates, filtration, and obtaining potassium sulphate by treating the ppte. with caustic potash. Alumina is obtained by hydrolysis of the filtrate, cooling to 45-48 degrees C., filtration and heating the aluminium hydroxide produced. The excess sodium ions can be added either as caustic soda when treating the ore, or as sodium sulphate in the soln. used for treating the ppte. of mixed sulphates.
FR7339507A 1972-12-08 1973-11-07 Alumina and potassium sulphate prodn. from alunite - with high yields, using an alkali soln. Granted FR2209719A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1852006A SU520001A1 (en) 1972-12-08 1972-12-08 The method of hydrochemical processing of alunite

Publications (2)

Publication Number Publication Date
FR2209719A1 true FR2209719A1 (en) 1974-07-05
FR2209719B1 FR2209719B1 (en) 1976-06-18

Family

ID=20533611

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339507A Granted FR2209719A1 (en) 1972-12-08 1973-11-07 Alumina and potassium sulphate prodn. from alunite - with high yields, using an alkali soln.

Country Status (6)

Country Link
CA (1) CA1003619A (en)
DE (1) DE2345292C3 (en)
FR (1) FR2209719A1 (en)
IT (1) IT998596B (en)
MX (1) MX143262A (en)
SU (1) SU520001A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117077A (en) * 1976-09-13 1978-09-26 Gakif Zakirovich Nasyrov Process for alunite treatment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
DE2345292C3 (en) 1978-05-03
SU520001A1 (en) 1976-07-25
CA1003619A (en) 1977-01-18
FR2209719B1 (en) 1976-06-18
DE2345292B2 (en) 1977-09-01
MX143262A (en) 1981-04-10
IT998596B (en) 1976-02-20
DE2345292A1 (en) 1974-07-11

Similar Documents

Publication Publication Date Title
MY102432A (en) Detergent powders and process for their preparation
ZA745600B (en) Process for the manufacture of chloride and sodium carbonate
ES8104428A1 (en) Method of producing very pure magnesium oxide
GB1489400A (en) Aluminium hydroxycarbonate hydrate
AU463242B2 (en) Reclaiming pulp from wastepapers by treating witha solution of sodium hydroxide sodium carbonate, sodium or ammonium bicarbonate, and sodium borate
FR2209719A1 (en) Alumina and potassium sulphate prodn. from alunite - with high yields, using an alkali soln.
GB1524995A (en) Process for treating a residual product which contains sodium sulphate
GB1519291A (en) Water treatment
ES420775A1 (en) Process for purification of aqueous sodium citrate solutions
JPS53113299A (en) Method of concentrating caustic alkaline sulution for ion exchange membrane electrolysis
GB2005645A (en) A process for purifying an aqueous solution of an alkali metal halide for electrolysis
GB637578A (en) Methods for extracting alumina from raw anhydrous calcium aluminates
GB1412040A (en) Process for reducing the sodium content of red mud
GB573589A (en) Improvements in or relating to the manufacture of alginic materials
GB1271126A (en) A process for the production of carbonates of barium and strontium from their sulphates
GB1272715A (en) Aluminium hydroxide gels
GB1531459A (en) Preparation of solutions of a basic aluminium compound and their use in water treatment
GB1389870A (en) Purification of alkalimetal chloride brine
GB1304582A (en)
GB1037764A (en) Method of eliminating hydrofluoric acid from sewage
CA882290A (en) Process for reducing losses of mercury in the alkali metal chloride electrolysis according to the amalgamation process
FR2107872A1 (en) Nonelectrolytic aluminium prodn - from melt of alumina, sodium and fluorine, and optionally carbonaceous reducing agent
GB560600A (en) Improvement in process of making magnesium oxide
FR2106917A5 (en) Potassium sulphate prodn - from alkali sulphate and caustic potash in continuous countercurrent process
ES8303826A1 (en) Method for the production of a product for the strengthening, maintenance and regeneration of batteries as well as treatment for regeneration

Legal Events

Date Code Title Description
ST Notification of lapse