GB191509662A - Process of Manufacture of Pure Alumina. - Google Patents

Process of Manufacture of Pure Alumina.

Info

Publication number
GB191509662A
GB191509662A GB191509662DA GB191509662A GB 191509662 A GB191509662 A GB 191509662A GB 191509662D A GB191509662D A GB 191509662DA GB 191509662 A GB191509662 A GB 191509662A
Authority
GB
United Kingdom
Prior art keywords
alumina
aluminates
sodium
sodium carbonate
alkali
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
Inventor
Ernest Martin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191509662A publication Critical patent/GB191509662A/en
Expired 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
    • C01F7/16—Preparation of alkaline-earth metal aluminates or magnesium aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/164—Calcium aluminates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

9662. Martin, E. July 10, 1914, [Convention date]. Alkali aluminates; alumina.-Alkali aluminates are obtained by heating aluminous earth, such as bauxite, with calcium carbonate and a small proportion of an alkali salt, such as sodium sulphate, double aluminates being first obtained, which are decomposed on subsequent washing with sodium carbonate solution. The proportion of calcium carbonate should be enough to combine with the alumina and also with the impurities. The product is leached, preferably in two stages, with sodium carbonate solution, sodium aluminate being obtained, which is treated by auto-precipitation or carbonation, or both, to obtain the alumina. To avoid solution of the silica, the sodium carbonate is used in the ratio Al2O3 : Na2O=1: 10, the concentration being 75-100 grm. Na2CO3 per litre.
GB191509662D 1914-07-10 1915-07-02 Process of Manufacture of Pure Alumina. Expired GB191509662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191509662X 1914-07-10

Publications (1)

Publication Number Publication Date
GB191509662A true GB191509662A (en) 1915-11-18

Family

ID=32669624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191509662D Expired GB191509662A (en) 1914-07-10 1915-07-02 Process of Manufacture of Pure Alumina.

Country Status (2)

Country Link
FR (1) FR475476A (en)
GB (1) GB191509662A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180498A (en) * 2011-01-07 2011-09-14 潘爱芳 Method for extracting alumina from bauxite
CN102180491A (en) * 2011-01-07 2011-09-14 潘爱芳 Method for extracting aluminum oxide from coal gangue
CN102180492A (en) * 2011-01-07 2011-09-14 潘爱芳 Method for producing alumina from fly ash

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180498A (en) * 2011-01-07 2011-09-14 潘爱芳 Method for extracting alumina from bauxite
CN102180491A (en) * 2011-01-07 2011-09-14 潘爱芳 Method for extracting aluminum oxide from coal gangue
CN102180492A (en) * 2011-01-07 2011-09-14 潘爱芳 Method for producing alumina from fly ash
CN102180498B (en) * 2011-01-07 2012-10-31 潘爱芳 Method for extracting alumina from bauxite
CN102180491B (en) * 2011-01-07 2012-10-31 潘爱芳 Method for extracting aluminum oxide from coal gangue
CN102180492B (en) * 2011-01-07 2012-10-31 潘爱芳 Method for producing alumina from fly ash

Also Published As

Publication number Publication date
FR475476A (en) 1915-05-18

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