GB205078A - Improvements in or relating to the preparation of heavy and light magnesia hydrate - Google Patents

Improvements in or relating to the preparation of heavy and light magnesia hydrate

Info

Publication number
GB205078A
GB205078A GB24477/23A GB2447723A GB205078A GB 205078 A GB205078 A GB 205078A GB 24477/23 A GB24477/23 A GB 24477/23A GB 2447723 A GB2447723 A GB 2447723A GB 205078 A GB205078 A GB 205078A
Authority
GB
United Kingdom
Prior art keywords
heavy
precipitate
relating
preparation
magnesia
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
GB24477/23A
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
Publication of GB205078A publication Critical patent/GB205078A/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
    • C01F5/00—Compounds of magnesium
    • C01F5/14—Magnesium hydroxide
    • C01F5/20—Magnesium hydroxide by precipitation from solutions of magnesium salts with ammonia

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

Crude magnesia, such as calcined magnesite, brucite or dolomite, or hydrated magnesia, or a soluble magnesium salt such as the sulphate or a mineral containing it, is treated with water and an ammonium salt such as the sulphate or chloride. To the solution ammonia is added to precipitate a part of the magnesia, the precipitate being of the light or heavy variety according as the conditions of temperature, concentration, and pressure are selected. The precipitate is separated and the mother-liquor is used to treat more crude material.
GB24477/23A 1922-10-03 1923-10-02 Improvements in or relating to the preparation of heavy and light magnesia hydrate Expired GB205078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT205078X 1922-10-03

Publications (1)

Publication Number Publication Date
GB205078A true GB205078A (en) 1924-12-18

Family

ID=11167969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24477/23A Expired GB205078A (en) 1922-10-03 1923-10-02 Improvements in or relating to the preparation of heavy and light magnesia hydrate

Country Status (1)

Country Link
GB (1) GB205078A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603555A (en) * 1948-03-31 1952-07-15 Diamond Alkali Co Method of obtaining magnesia
US3508869A (en) * 1966-11-04 1970-04-28 Dow Chemical Co Novel crystalline mg(oh)2 and mgo and methods of preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603555A (en) * 1948-03-31 1952-07-15 Diamond Alkali Co Method of obtaining magnesia
US3508869A (en) * 1966-11-04 1970-04-28 Dow Chemical Co Novel crystalline mg(oh)2 and mgo and methods of preparation

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