GB371259A - Improvements in the production of alumina - Google Patents

Improvements in the production of alumina

Info

Publication number
GB371259A
GB371259A GB23198/31A GB2319831A GB371259A GB 371259 A GB371259 A GB 371259A GB 23198/31 A GB23198/31 A GB 23198/31A GB 2319831 A GB2319831 A GB 2319831A GB 371259 A GB371259 A GB 371259A
Authority
GB
United Kingdom
Prior art keywords
aluminate
alumina
give
normal
salt
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
GB23198/31A
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.)
Lonza Werke Elektrochemische Fabriken GmbH
Original Assignee
Lonza Werke Elektrochemische Fabriken GmbH
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 Lonza Werke Elektrochemische Fabriken GmbH filed Critical Lonza Werke Elektrochemische Fabriken GmbH
Publication of GB371259A publication Critical patent/GB371259A/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
    • C01F7/18—Aluminium oxide or hydroxide from alkaline earth metal 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

A method of carrying out the process of the parent Specification comprises digesting an alkaline-earth aluminate with less than the theoretical amount of acid such as nitric acid for the formation of neutral salts. Thereby a part of the aluminate is first decomposed to give a normal aluminium salt, whereafter the remainder of the aluminate reacts with the normal salt to give a solution containing a basic aluminium salt, from which alumina is precipitated in known manner.
GB23198/31A 1930-08-21 1931-08-18 Improvements in the production of alumina Expired GB371259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH371259X 1930-08-21

Publications (1)

Publication Number Publication Date
GB371259A true GB371259A (en) 1932-04-21

Family

ID=4513469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23198/31A Expired GB371259A (en) 1930-08-21 1931-08-18 Improvements in the production of alumina

Country Status (1)

Country Link
GB (1) GB371259A (en)

Similar Documents

Publication Publication Date Title
GB426392A (en) Improvements in the manufacture of phosphoric acid
GB484921A (en) Improvements in or relating to the manufacture of ammonium sulphate
GB371259A (en) Improvements in the production of alumina
GB400984A (en) Improvements in or relating to a method of producing sodium aluminate solutions
GB522987A (en) Improvements in or relating to the production of double fluorides of alkali metals and aluminium
US1642535A (en) Process of making sodium sulphites and boric acid
GB263780A (en) Improved process for the manufacture of readily soluble salts of hydrofluosilicic acid
GB478085A (en) Improvements in or relating to the manufacture of catalysts for organic syntheses
GB463092A (en) Improvements in the manufacture and production of cryolite
GB417919A (en) Improvements in the manufacture of alkali nitrates
GB239349A (en) Improvements in the manufacture of magnesium-borosilicateglass
GB354825A (en) Manufacture of compounds containing aluminium and fluorine
US1527903A (en) Manufacture of aluminum hydroxide
GB364562A (en) Improvements in or relating to the manufacture of titanium pigments
GB290174A (en)
GB278411A (en) Process for the treatment of zinc waste
GB333023A (en) Process for the preparation of the sodium salt of paraoxyphenylarsinic acid
GB348363A (en) Improvements in the manufacture and production of aluminium compounds and phosphoricacid
GB205563A (en) Process for the production of aluminium chloride and alumina
GB175795A (en) An improved process for the production of sodium pentaborate, from boron ores
GB246827A (en) Method of separating aluminium nitrate from potassium, sodium, iron, calcium, magnesium nitrates, present in mixed solutions of these salts
GB218014A (en) Manufacture of soluble acid calcium salts of inosite-phosphoricacid
GB327909A (en) An improved method of producing potassium nitrate
GB346734A (en) Improvements in and relating to the production of potassium nitrate with simultaneous obtaining of dimagnesium phosphate
GB294236A (en) Process for the manufacture of boric acid