FR2145873A5 - Benzene from alkylbenzenes - Google Patents

Benzene from alkylbenzenes

Info

Publication number
FR2145873A5
FR2145873A5 FR7125986A FR7125986A FR2145873A5 FR 2145873 A5 FR2145873 A5 FR 2145873A5 FR 7125986 A FR7125986 A FR 7125986A FR 7125986 A FR7125986 A FR 7125986A FR 2145873 A5 FR2145873 A5 FR 2145873A5
Authority
FR
France
Prior art keywords
pref
alkylbenzenes
benzene
atmos
concn
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
FR7125986A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to FR7125986A priority Critical patent/FR2145873A5/en
Application granted granted Critical
Publication of FR2145873A5 publication Critical patent/FR2145873A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C4/20—Hydrogen being formed in situ, e.g. from steam
    • 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
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C07C2523/42—Platinum
    • 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
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C07C2523/44—Palladium
    • 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
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C07C2523/46—Ruthenium, rhodium, osmium or iridium

Landscapes

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

Abstract

Alkylbenzenes, steam (pref. 12-40 fold excess) and H2 (pref. 5-20 mole %) are passed over Group VIII metal(s) catalyst or an alumina support at pref. 500-650 degrees C and 250-50 atmos. Suitable metals are Pt, Ir, Pd, Rh, Ru pref. present in 0.4-0.8% concn. Benzene is isolated from the product mixture and other hydrocarbons are recycled.
FR7125986A 1971-07-15 1971-07-15 Benzene from alkylbenzenes Expired FR2145873A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7125986A FR2145873A5 (en) 1971-07-15 1971-07-15 Benzene from alkylbenzenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7125986A FR2145873A5 (en) 1971-07-15 1971-07-15 Benzene from alkylbenzenes

Publications (1)

Publication Number Publication Date
FR2145873A5 true FR2145873A5 (en) 1973-02-23

Family

ID=9080427

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7125986A Expired FR2145873A5 (en) 1971-07-15 1971-07-15 Benzene from alkylbenzenes

Country Status (1)

Country Link
FR (1) FR2145873A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437391A1 (en) * 1978-07-07 1980-04-25 Elf Union CATALYTIC CONVERSION OF AROMATIC CUTS IN THE PRESENCE OF STEAM
FR2442815A1 (en) * 1978-11-29 1980-06-27 Inst Francais Du Petrole PROCESS FOR REGENERATING A VAPOR DEALKYLATION CATALYST OF AROMATIC HYDROCARBONS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437391A1 (en) * 1978-07-07 1980-04-25 Elf Union CATALYTIC CONVERSION OF AROMATIC CUTS IN THE PRESENCE OF STEAM
FR2442815A1 (en) * 1978-11-29 1980-06-27 Inst Francais Du Petrole PROCESS FOR REGENERATING A VAPOR DEALKYLATION CATALYST OF AROMATIC HYDROCARBONS

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Legal Events

Date Code Title Description
ST Notification of lapse