FR2270938A1 - Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity - Google Patents

Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity

Info

Publication number
FR2270938A1
FR2270938A1 FR7402557A FR7402557A FR2270938A1 FR 2270938 A1 FR2270938 A1 FR 2270938A1 FR 7402557 A FR7402557 A FR 7402557A FR 7402557 A FR7402557 A FR 7402557A FR 2270938 A1 FR2270938 A1 FR 2270938A1
Authority
FR
France
Prior art keywords
tio2
contg
activity
titanium dioxide
chromium oxide
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.)
Withdrawn
Application number
FR7402557A
Other languages
French (fr)
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.)
Inst Cercetare Si Proiectare T
Original Assignee
Inst Cercetare Si Proiectare T
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 Inst Cercetare Si Proiectare T filed Critical Inst Cercetare Si Proiectare T
Priority to FR7402557A priority Critical patent/FR2270938A1/en
Publication of FR2270938A1 publication Critical patent/FR2270938A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/321—Catalytic processes
    • C07C5/322—Catalytic processes with metal oxides or metal sulfides
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/26—Chromium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
    • C07C4/12—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene
    • C07C4/14—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene splitting taking place at an aromatic-aliphatic bond
    • C07C4/18—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3332—Catalytic processes with metal oxides or metal sulfides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the alkali- or alkaline earth metals or beryllium
    • C07C2523/04—Alkali metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/24—Chromium, molybdenum or tungsten
    • C07C2523/26—Chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)

Abstract

New hydrocarbon-conversion catalysts, esp. for the hydrodealkylation of 7-8C alkylaromatics and the dehydrogenation of 3-5C hydrocarbons, contain Cr2O3 (esp. 15-25%) Al2O3, and 1-40 (pref. 1-20) wt. % TiO2. The catalysts are pref. prepd. by (a) adding finely divided (1 mu) calcined TiO2 hydrated TiO2 and/or a cpd. convertible to TiO2, at a suitable stage in the prepn. of hydrated Al2O3; (b) extruding the mixt.; (c) heating at 300-700 degrees C; (d) impregnating with an aqs. soln. of CrO3 and alkali metal hydroxide; (e) calcining at 500-700 degrees C in air or air/steam; and (f) calcining in H2 or H2/steam.
FR7402557A 1974-01-25 1974-01-25 Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity Withdrawn FR2270938A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7402557A FR2270938A1 (en) 1974-01-25 1974-01-25 Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7402557A FR2270938A1 (en) 1974-01-25 1974-01-25 Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity

Publications (1)

Publication Number Publication Date
FR2270938A1 true FR2270938A1 (en) 1975-12-12

Family

ID=9134005

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7402557A Withdrawn FR2270938A1 (en) 1974-01-25 1974-01-25 Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity

Country Status (1)

Country Link
FR (1) FR2270938A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5378350A (en) * 1988-12-12 1995-01-03 Linde Aktiengesellschaft Process and catalyst for dehydrogenation or dehydrocyclization of hydrocarbons
US6071504A (en) * 1997-07-09 2000-06-06 Kao Corporation Hair treatment composition comprising alkalizing agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5378350A (en) * 1988-12-12 1995-01-03 Linde Aktiengesellschaft Process and catalyst for dehydrogenation or dehydrocyclization of hydrocarbons
US6071504A (en) * 1997-07-09 2000-06-06 Kao Corporation Hair treatment composition comprising alkalizing agent

Similar Documents

Publication Publication Date Title
GB1129702A (en) Equilibration and steam-reforming catalysts
ATE148085T1 (en) ALKANE DEHYDRATION
IE41238L (en) Olefin polymerisation catalyst
GB558294A (en) Catalysts and the preparation thereof
UA18586A1 (en) Catalyst for dehydration of hydrocarbons
GB930760A (en) Improvements in and relating to the manufacture and use of hydrocarbon purification catalysts
BR8503204A (en) PROCESS FOR THE PREPARATION OF HYDROCARBONS BY CATALYTIC REACTION OF CARBON MONOXIDE WITH HYDROGEN
GB1324826A (en) Purification of ethylene or propylene streams containing carbon monoxide
CA2066530A1 (en) Process for the preparation of a catalyst or catalyst precursor
GB1314011A (en) Steam reforming hydrocarbons
GB1378864A (en) Catalytic steam dealkylation
FR2270938A1 (en) Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity
BE809873A (en) Chromium oxide/alumina hydrocarbon conversion catalysts - contg titanium dioxide for increased selectivity and activity
GB1128606A (en) Catalytic composition and hydrocarbon conversion process
GB1462059A (en) Catalyst and its use for the manufacture of gases containing methane manufacture of methane from gases containing carbon monoxide and dioxide and hydrogen
GB1249648A (en) Dehydration and methanation catalyst and process
FR2363619A1 (en) Steam reforming catalysts for methane prodn. - comprising mixed oxide prepd. by three-stage pptn.
GB1422433A (en) Disproportionating toluene
GB1107432A (en) Dehydrogenation process
GB1474284A (en) Hydrocarbon conversion catalyst and the uses thereof
GB942944A (en) Dehydrogenation of aliphatic hydrocarbons and catalyst therefor
GB1238631A (en)
GB1117778A (en) Catalytic compositions
GB1487086A (en) Production of isobutane
GB508764A (en) Improvements in the manufacture and production of butadiene from butane

Legal Events

Date Code Title Description
ST Notification of lapse