GB1317527A - Process for preparing pure hydrated alumina - Google Patents

Process for preparing pure hydrated alumina

Info

Publication number
GB1317527A
GB1317527A GB3312371A GB1317527DA GB1317527A GB 1317527 A GB1317527 A GB 1317527A GB 3312371 A GB3312371 A GB 3312371A GB 1317527D A GB1317527D A GB 1317527DA GB 1317527 A GB1317527 A GB 1317527A
Authority
GB
United Kingdom
Prior art keywords
hydrated alumina
slurry
heating
alumina
prepared
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
GB3312371A
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Publication of GB1317527A publication Critical patent/GB1317527A/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
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/141—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent
    • C01F7/142—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent with carbon dioxide
    • 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
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

1317527 Hydrated alumina MITSUBISHI CHEMICAL INDUSTRIES Ltd 14 July 1971 33123/71 Heading ClA Pure hydrated alumina is prepared by passing CO 2 into an aqueous solution of sodium aluminate (prepared, e.g. by dissolving bauxite ore, hydrated alumina or aluminium in NaOH solution) to form a slurry of hydrated alumina, washing the slurry with water to elute the sodium (e.g. to lower the pH to less than 12), heating the slurry to above 100‹ C. under a superatmospheric pressure of CO 2 (e.g. gauge pressure of 10-20 Kg/cm.<SP>2</SP>) and then separating the hydrated alumina from the slurry. By varying the heating temperature different forms of alumina are produced, e.g. bayerite is formed by heating to 100-170‹ C. and boehmite by heating to 180-300‹ C.
GB3312371A 1971-07-14 1971-07-14 Process for preparing pure hydrated alumina Expired GB1317527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3312371 1971-07-14

Publications (1)

Publication Number Publication Date
GB1317527A true GB1317527A (en) 1973-05-23

Family

ID=10348865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3312371A Expired GB1317527A (en) 1971-07-14 1971-07-14 Process for preparing pure hydrated alumina

Country Status (3)

Country Link
DE (1) DE2137781C3 (en)
FR (1) FR2146961B1 (en)
GB (1) GB1317527A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100395185C (en) * 2005-11-22 2008-06-18 华东理工大学 Preparation of superfine aluminium hydroxide
WO2009001169A2 (en) * 2006-06-21 2008-12-31 Martinswerk Gmbh Aluminum hydroxide
CN110386613A (en) * 2019-08-23 2019-10-29 广州大学 A kind of preparation method for the mesoporous alumina hydrate microspherical of graduation that crystal form is controllable
CN115259189A (en) * 2022-08-05 2022-11-01 大连理工大学 Method for synthesizing low-sodium pseudo-boehmite from industrial aluminum hydroxide

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100395185C (en) * 2005-11-22 2008-06-18 华东理工大学 Preparation of superfine aluminium hydroxide
WO2009001169A2 (en) * 2006-06-21 2008-12-31 Martinswerk Gmbh Aluminum hydroxide
WO2009001169A3 (en) * 2006-06-21 2009-11-19 Martinswerk Gmbh Aluminum hydroxide
CN110386613A (en) * 2019-08-23 2019-10-29 广州大学 A kind of preparation method for the mesoporous alumina hydrate microspherical of graduation that crystal form is controllable
CN110386613B (en) * 2019-08-23 2022-04-29 广州大学 Preparation method of hierarchical mesoporous hydrated alumina microspheres with controllable crystal forms
CN115259189A (en) * 2022-08-05 2022-11-01 大连理工大学 Method for synthesizing low-sodium pseudo-boehmite from industrial aluminum hydroxide
CN115259189B (en) * 2022-08-05 2023-11-24 大连理工大学 Method for synthesizing low-sodium pseudo-boehmite from industrial aluminum hydroxide

Also Published As

Publication number Publication date
DE2137781A1 (en) 1973-02-15
DE2137781B2 (en) 1975-04-17
DE2137781C3 (en) 1975-12-04
FR2146961A1 (en) 1973-03-09
FR2146961B1 (en) 1974-09-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee