GB1347106A - Preparation of alumina - Google Patents

Preparation of alumina

Info

Publication number
GB1347106A
GB1347106A GB2179871A GB2179871A GB1347106A GB 1347106 A GB1347106 A GB 1347106A GB 2179871 A GB2179871 A GB 2179871A GB 2179871 A GB2179871 A GB 2179871A GB 1347106 A GB1347106 A GB 1347106A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
pores
aqueous solution
solids content
precipitated
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
GB2179871A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1347106A publication Critical patent/GB1347106A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/615100-500 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/633Pore volume less than 0.5 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/6350.5-1.0 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64Pore diameter
    • B01J35/6472-50 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/66Pore distribution
    • B01J35/67Pore distribution monomodal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1347106 Alumina hydrogel SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 April 1971 [16 Feb 1970] 21798/71 Heading C1A An alumina hydrogel is precipitated by concurrently reacting an aqueous solution of an aluminium salt with an aqueous solution of an aluminate at pH 8À5-10À5, and 20-40‹ C., to a solids content of the reaction mixture of up to 40 gm/l. and the resulting hydrogel is separated and washed with 0À005-1 M. ammonium carbonate or bicarbonate solution which is free from alkali metal ions, and then dried and calcined, to give a product having the following characteristics: Bulk density 0À5-0À8 gm/c.c. Surface area 200-350 m<SP>2</SP>/gm. Pore volume 0À4-0À7 c.c./gm. Average pore diam. 60-120 Š (<1% pores below 30 Š and <1% pores greater than 350 Š, at least 70% pores 40-160 Š). An alkali metal carbonate may be added before or after precipitation. The precipitated slurry preferably contains 20-40 gm/litre solids. Calcination is preferably performed at 450- 650‹ C. in a non-reducing atmosphere. In a modification the reaction is performed in the presence of an alkali metal carbonate, to a solids content of up to 80 gms/l.
GB2179871A 1970-02-16 1971-04-19 Preparation of alumina Expired GB1347106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1170970A 1970-02-16 1970-02-16

Publications (1)

Publication Number Publication Date
GB1347106A true GB1347106A (en) 1974-02-27

Family

ID=21751639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2179871A Expired GB1347106A (en) 1970-02-16 1971-04-19 Preparation of alumina

Country Status (5)

Country Link
CA (1) CA952289A (en)
DE (1) DE2107147A1 (en)
FR (1) FR2080526B1 (en)
GB (1) GB1347106A (en)
NL (1) NL7101963A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208357A2 (en) * 1985-07-05 1987-01-14 Shell Internationale Researchmaatschappij B.V. Wide pore alumina supports
FR3049595A1 (en) * 2016-04-05 2017-10-06 Ifp Energies Now PROCESS FOR PREPARING A MESOPOROUS AND MACROPOROUS ALUMINA FROM AT LEAST ONE DAWSONITE PRECURSOR
CN112516993A (en) * 2019-09-17 2021-03-19 中国石油化工股份有限公司 Preparation method of alumina carrier
FR3112496A1 (en) * 2020-07-20 2022-01-21 IFP Energies Nouvelles Method for washing a suspension of metal oxides

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1123173A (en) * 1974-09-09 1982-05-11 Nalco Chemical Company Controlling the pore diameter of precipitated alumina
FR3122585A1 (en) 2021-05-04 2022-11-11 Universite Claude Bernard Lyon 1 Mesoporous solid to regulate humidity in enclosed spaces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1331328A (en) * 1960-04-15 1963-07-05 Exxon Research Engineering Co Hydrorefining catalyst and hydrorefining process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208357A2 (en) * 1985-07-05 1987-01-14 Shell Internationale Researchmaatschappij B.V. Wide pore alumina supports
EP0208357A3 (en) * 1985-07-05 1989-10-11 Shell Internationale Research Maatschappij B.V. Wide pore alumina supports
FR3049595A1 (en) * 2016-04-05 2017-10-06 Ifp Energies Now PROCESS FOR PREPARING A MESOPOROUS AND MACROPOROUS ALUMINA FROM AT LEAST ONE DAWSONITE PRECURSOR
CN112516993A (en) * 2019-09-17 2021-03-19 中国石油化工股份有限公司 Preparation method of alumina carrier
FR3112496A1 (en) * 2020-07-20 2022-01-21 IFP Energies Nouvelles Method for washing a suspension of metal oxides
WO2022017831A1 (en) * 2020-07-20 2022-01-27 IFP Energies Nouvelles Method for washing a metal oxide suspension

Also Published As

Publication number Publication date
DE2107147A1 (en) 1971-09-02
CA952289A (en) 1974-08-06
FR2080526A1 (en) 1971-11-19
NL7101963A (en) 1971-08-18
FR2080526B1 (en) 1973-12-28

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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