GB931936A - Improvements relating to the production of alumina - Google Patents

Improvements relating to the production of alumina

Info

Publication number
GB931936A
GB931936A GB1217560A GB1217560A GB931936A GB 931936 A GB931936 A GB 931936A GB 1217560 A GB1217560 A GB 1217560A GB 1217560 A GB1217560 A GB 1217560A GB 931936 A GB931936 A GB 931936A
Authority
GB
United Kingdom
Prior art keywords
weight
hydrocarbon solvent
alumina
hydrolysing
aluminium
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
GB1217560A
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Priority to GB1217560A priority Critical patent/GB931936A/en
Publication of GB931936A publication Critical patent/GB931936A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
    • C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
    • C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Alumina suitable for a catalyst base and having a surface area greater than 200m2/g. and micropore volume greater than 0,5ml/g., is produced by hydrolysing under reflux an aluminium alcoholate dissolved in a hydrocarbon solvent, separating the alumina hydrate so produced and then drying and calcining the hydrate. The hydrocarbon solvent may be a pure hydrocarbon e.g. an aromatic hydrocarbon such as benzene or toluene; or an aliphatic paraffin or a cycloparaffin; or a mixture of hydrocarbons e.g. a petroleum fraction boiling within the range 50 DEG to 200 DEG C., may be used. The hydrolysing medium may be water or any aqueous solution of a base, e.g. ammonia, or an organic acid, e.g. acetic acid. Preferably the amounts of hydrocarbon solvent and hydrolysing medium employed vary between 1 part by weight of hydrocarbon solvent plus 1 part by weight of hydrolysing medium to 1 part by weight of aluminium alcoholate, and 10 parts by weight of hydrocarbon solvent plus 10 parts by weight of hydrolysing medium to 1 part by weight of aluminium alcoholate. The aluminium alcoholate may be prepared by reacting aluminium metal with an alcohol, preferably in the presence of mercury or a mercury compound. The alumina may be used as a catalyst base to support, for example, a Group VIa or VIII metal (Mendel<\>aeef), in the treatment of hydrocarbons, e.g. in reforming, aromatization, hydrogenation, dehydrogenation, isomerization, desulphurization and cracking of hydrocarbons. The catalytically active material may be introduced to the alumina hydrate by way of the hydrolysing medium which may contain a catalytically active material or a solution of a compound which will decompose on calcination to give a catalytically active material. Alternatively the material may be added to the alumina hydrate or alumina after hydrolysis, e.g. by impregnation of the resultant dried and calcined alumina. Catalytic metals mentioned are chromium, molybdenum, tungsten, cobalt, nickel, palladium and platinum and in the example alumina is impregnated with cobalt nitrate and ammonium molybdate.ALSO:An aluminium alcoholate dissolved in a hydrocarbon solvent is hydrolysed under reflux to give alumina hydrate and the corresponding alcohol. The temperature used depends on the hydrocarbon solvent which may be a pure hydrocarbon, e.g. an aromatic hydrocarbon such as benzene or toluene; or an aliphatic paraffin or cycloparaffin; or a mixture of hydrocarbons, e.g. a petroleum fraction boiling within the range 50 DEG to 200 DEG C. may be used. Preferably the amounts of hydrocarbon solvent and hydrolysing medium employed vary between 1 part by weight of hydrocarbon solvent plus 1 part by weight of hydrolysing medium to 1 part by weight of aluminium alcoholate, and 10 parts by weight of hydrocarbon solvent plus 10 parts by weight of hydrolysing medium to 1 part by weight of aluminium alcoholate. The aluminium alcoholate may be prepared by reacting aluminium metal with an alcohol, preferably in the presence of a small quantity of mercury or a mercury compound.
GB1217560A 1960-04-06 1960-04-06 Improvements relating to the production of alumina Expired GB931936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1217560A GB931936A (en) 1960-04-06 1960-04-06 Improvements relating to the production of alumina

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1217560A GB931936A (en) 1960-04-06 1960-04-06 Improvements relating to the production of alumina

Publications (1)

Publication Number Publication Date
GB931936A true GB931936A (en) 1963-07-24

Family

ID=9999714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1217560A Expired GB931936A (en) 1960-04-06 1960-04-06 Improvements relating to the production of alumina

Country Status (1)

Country Link
GB (1) GB931936A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1545397A1 (en) * 1965-11-30 1970-01-29 Standard Oil Co A catalyst and a process for the hydrogenation processing of petroleum
US3647374A (en) * 1967-08-29 1972-03-07 Sumitomo Chemical Co Method for separating alcohols and hydrated alumina from hydrolysts products of aluminum alkoxides
US4175118A (en) * 1975-12-17 1979-11-20 Condea Chemie Gmbh Method for manufacturing a high porous alumina having a large surface area and a low bulk density
GB2131782A (en) * 1982-11-25 1984-06-27 Atomic Energy Authority Uk Peptisable alumina
US4532072A (en) * 1982-11-25 1985-07-30 United Kingdom Atomic Energy Authority Process for producing aluminium containing sols

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1545397A1 (en) * 1965-11-30 1970-01-29 Standard Oil Co A catalyst and a process for the hydrogenation processing of petroleum
US3647374A (en) * 1967-08-29 1972-03-07 Sumitomo Chemical Co Method for separating alcohols and hydrated alumina from hydrolysts products of aluminum alkoxides
US4175118A (en) * 1975-12-17 1979-11-20 Condea Chemie Gmbh Method for manufacturing a high porous alumina having a large surface area and a low bulk density
GB2131782A (en) * 1982-11-25 1984-06-27 Atomic Energy Authority Uk Peptisable alumina
US4532072A (en) * 1982-11-25 1985-07-30 United Kingdom Atomic Energy Authority Process for producing aluminium containing sols

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