GB827392A - Preparation of eta alumina by acid hydrolysis - Google Patents

Preparation of eta alumina by acid hydrolysis

Info

Publication number
GB827392A
GB827392A GB32125/56A GB3212556A GB827392A GB 827392 A GB827392 A GB 827392A GB 32125/56 A GB32125/56 A GB 32125/56A GB 3212556 A GB3212556 A GB 3212556A GB 827392 A GB827392 A GB 827392A
Authority
GB
United Kingdom
Prior art keywords
alumina
eta
variety
added
acids
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
GB32125/56A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB827392A publication Critical patent/GB827392A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C10G35/00—Reforming naphtha
    • C10G35/04—Catalytic reforming
    • C10G35/06—Catalytic reforming characterised by the catalyst used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

An attrition-resistant alumina, consisting predominantly of eta-alumina, and adapted for use as a catalyst support, is prepared by hydrolysing an aluminium alcoholate, preferably derived from a C5 or higher alcohol, at a pH of 3 to 5 with an aqueous solution of volatile inorganic acids or carboxylic acids having at least 3 carbon atoms, preferably HCl or a C3-C5 carboxylic acid, such as propionic, butyric, valeric, lactic, hydracrylic, glyceric, levulinic, malonic, glutaric, succinic, pimelic, citric, a - or b -chloropropionic, and tartaric acids. The temperature is preferably between 32 DEG and 100 DEG F., especially below 70 DEG F. The resultant alumina precipitate is aged in the form of an aqueous slurry for at least 5 hours, preferably at a temperature of 60 DEG to 100 DEG F., especially below 80 DEG F., and the alumina is then dried and heated to 400 DEG to 1500 DEG F., especially 1100 DEG to 1450 DEG F., to convert to eta-alumina. The catalyst component may be added in a variety of ways well known in the art, either before or after the drying stage, but not before the alumina is precipitated as the beta-trihydrate. The product may be used as a support for a variety of catalysts, such as molybdenum, nickel, tungsten and chromium oxides, and also palladium and platinum, which last may be added in the form of soluble platinum-ammonia complexes. Specification 754,552 is referred to.
GB32125/56A 1955-11-03 1956-10-22 Preparation of eta alumina by acid hydrolysis Expired GB827392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US827392XA 1955-11-03 1955-11-03

Publications (1)

Publication Number Publication Date
GB827392A true GB827392A (en) 1960-02-03

Family

ID=22173127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32125/56A Expired GB827392A (en) 1955-11-03 1956-10-22 Preparation of eta alumina by acid hydrolysis

Country Status (1)

Country Link
GB (1) GB827392A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120224A (en) * 1982-04-22 1983-11-30 Grace W R & Co Improved drilling fluid viscosifier
US4541485A (en) * 1983-06-24 1985-09-17 W. R. Grace & Co. Completion and workover fluid
US4853207A (en) * 1986-02-24 1989-08-01 Solvay & Cie (Societe) Process for the manufacture of vitreous metal oxides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120224A (en) * 1982-04-22 1983-11-30 Grace W R & Co Improved drilling fluid viscosifier
US4431550A (en) * 1982-04-22 1984-02-14 W. R. Grace & Co. Drilling fluid viscosifier
US4541485A (en) * 1983-06-24 1985-09-17 W. R. Grace & Co. Completion and workover fluid
US4853207A (en) * 1986-02-24 1989-08-01 Solvay & Cie (Societe) Process for the manufacture of vitreous metal oxides

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