GB1424481A - Preparation of alumina slurries - Google Patents

Preparation of alumina slurries

Info

Publication number
GB1424481A
GB1424481A GB1829573A GB1829573A GB1424481A GB 1424481 A GB1424481 A GB 1424481A GB 1829573 A GB1829573 A GB 1829573A GB 1829573 A GB1829573 A GB 1829573A GB 1424481 A GB1424481 A GB 1424481A
Authority
GB
United Kingdom
Prior art keywords
alumina
organic solvent
solvent
concentrated
preparation
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
GB1829573A
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.)
ConocoPhillips Co
Original Assignee
Continental Oil Co
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 Continental Oil Co filed Critical Continental Oil Co
Publication of GB1424481A publication Critical patent/GB1424481A/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
    • C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
    • C01F7/36—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts from organic aluminium salts
    • 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
    • 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
    • C01P2006/19—Oil-absorption capacity, e.g. DBP values
    • 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

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)
  • Catalysts (AREA)

Abstract

1424481 Preparation of alumina slurries CONTINENTAL OIL CO 16 April 1973 [14 April 1972] 18295/73 Heading C1A A method of preparing concentrated alumina slurries comprises evaporating an organic solvent-aqueous alumina mixture comprising 1- 15% wt. Al 2 O 3 , 20-90% wt. organic solvent and 15-65% wt. water to produce a concentrated alumina slurry comprising from 14 to 20% wt. Al 2 O 3 , 15 to 70% wt. H 2 O and 71 to 10% wt. of organic solvent. Solvents preferred are ethanol, propanol, isopropanol, n-butanol, isobutanol or tertiary butanol. The solvent and water are preferably removed by azeotropic evaporation under reduced pressure. During the evaporation process, the solvent-aqueous alumina mixture is preferably subjected to a shear effect of from 10 to 10,000 sec.-<SP>1</SP>. The concentrated slurry may be drum or spray dried to produce alumina having a surface area of from 260 to 400 m.<SP>2</SP>/g., a pore volume of from 1 to 2À75 c.c/g. and a loose bulk density of from 7À5 to 25 lbs./ft.<SP>3</SP>.
GB1829573A 1972-04-14 1973-04-16 Preparation of alumina slurries Expired GB1424481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24422172A 1972-04-14 1972-04-14

Publications (1)

Publication Number Publication Date
GB1424481A true GB1424481A (en) 1976-02-11

Family

ID=22921876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1829573A Expired GB1424481A (en) 1972-04-14 1973-04-16 Preparation of alumina slurries

Country Status (5)

Country Link
JP (1) JPS4920098A (en)
BE (1) BE818686A (en)
DE (1) DE2314350C3 (en)
FR (1) FR2180081B1 (en)
GB (1) GB1424481A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4874438A (en) * 1972-01-11 1973-10-06
DE3823895C1 (en) * 1988-07-14 1989-12-21 Condea Chemie Gmbh, 2212 Brunsbuettel, De

Also Published As

Publication number Publication date
FR2180081B1 (en) 1977-02-04
DE2314350C3 (en) 1978-05-03
DE2314350A1 (en) 1973-10-31
JPS4920098A (en) 1974-02-22
BE818686A (en) 1975-02-10
FR2180081A1 (en) 1973-11-23
DE2314350B2 (en) 1977-08-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
427A Application made for restoration (sect. 27/1949)
427C Application for amendment of specification now open to opposition (sect. 27/1949)
427B Order made restoring the patent (sect. 27/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee