FR2291957A1 - Para-xylene prodn from toluene - by acid catalysed transalkylation with polymethyl-benzenes - Google Patents

Para-xylene prodn from toluene - by acid catalysed transalkylation with polymethyl-benzenes

Info

Publication number
FR2291957A1
FR2291957A1 FR7438013A FR7438013A FR2291957A1 FR 2291957 A1 FR2291957 A1 FR 2291957A1 FR 7438013 A FR7438013 A FR 7438013A FR 7438013 A FR7438013 A FR 7438013A FR 2291957 A1 FR2291957 A1 FR 2291957A1
Authority
FR
France
Prior art keywords
xylene
toluene
alumina
transalkylation
prodn
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Withdrawn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
FR7438013A
Other languages
French (fr)
Inventor
Andre De Koninck
Inaki De Aguirre
Christian Marcilly
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7438013A priority Critical patent/FR2291957A1/en
Publication of FR2291957A1 publication Critical patent/FR2291957A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C6/00—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
    • C07C6/08—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond
    • C07C6/12—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring
    • C07C6/126—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring of more than one hydrocarbon
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Xylene mixt. with a high p-isomer content produced by acid-catalysed transalkylation of toluene at 0-500 (pref. 20-400) degrees C and 1-100 (pref. 1-50) bars using pentamethylbenzene, hexamethylbenzene (prefd.), polymethyl condensed aromatics and/or complex molecules contg. a penta- or hexa-methylbenzene moiety. The catalyst is pref. amorphous silica-alumina, halogenated alumina, alumina-boron oxide, alumina-BF3 or a zeolite with >=7.5 angstroms pores. Mixts. contg. up to 90% p-xylene at >50% toluene conversion can be obtd. (cf. =65% selectivity at 10-30% conversion in prior art), giving increased yields in the sepn. o the p-isomer, p-Xylene can be oxidised to terephthalic acid for use in polyester prodn.
FR7438013A 1974-11-19 1974-11-19 Para-xylene prodn from toluene - by acid catalysed transalkylation with polymethyl-benzenes Withdrawn FR2291957A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7438013A FR2291957A1 (en) 1974-11-19 1974-11-19 Para-xylene prodn from toluene - by acid catalysed transalkylation with polymethyl-benzenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438013A FR2291957A1 (en) 1974-11-19 1974-11-19 Para-xylene prodn from toluene - by acid catalysed transalkylation with polymethyl-benzenes

Publications (1)

Publication Number Publication Date
FR2291957A1 true FR2291957A1 (en) 1976-06-18

Family

ID=9145042

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438013A Withdrawn FR2291957A1 (en) 1974-11-19 1974-11-19 Para-xylene prodn from toluene - by acid catalysed transalkylation with polymethyl-benzenes

Country Status (1)

Country Link
FR (1) FR2291957A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789008A1 (en) * 1996-02-09 1997-08-13 Institut Français du Pétrole Process for the dismutation and/or transalkylation of alkylaromatic hydrocarbons using a catalyst based on a mazzite zeolite comprising at least one metal of the groups IIa, IVB, IIB or IVA
EP0789009A1 (en) * 1996-02-09 1997-08-13 Institut Français du Pétrole Process for dismutation and/or transalkylation of alkylaromatic hydrocarbons in presence of two zeolitic catalysts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789008A1 (en) * 1996-02-09 1997-08-13 Institut Français du Pétrole Process for the dismutation and/or transalkylation of alkylaromatic hydrocarbons using a catalyst based on a mazzite zeolite comprising at least one metal of the groups IIa, IVB, IIB or IVA
EP0789009A1 (en) * 1996-02-09 1997-08-13 Institut Français du Pétrole Process for dismutation and/or transalkylation of alkylaromatic hydrocarbons in presence of two zeolitic catalysts
FR2744717A1 (en) * 1996-02-09 1997-08-14 Inst Francais Du Petrole USE IN DISMUTATION AND / OR TRANSALKYLATION OF ALKYLAROMATIC HYDROCARBONS OF A ZEOLITE OMEGA CATALYST CONTAINING AT LEAST ONE METAL OF GROUPS IIA IVB, IIB OR IVA
FR2744718A1 (en) * 1996-02-09 1997-08-14 Inst Francais Du Petrole PROCESS FOR DISMUTATION AND / OR TRANSALKYLATION OF ALKYLAROMATIC HYDROCARBONS IN THE PRESENCE OF TWO ZEOLITHIC CATALYSTS
US5773678A (en) * 1996-02-09 1998-06-30 Institut Francais Du Petrole Use of an omega zeolite based catalyst comprising at least one metal from groups IIa, IVb, IIb or IVa for the dismutation and/or transalkylation of alkylaromatic hydrocarbons
US5789641A (en) * 1996-02-09 1998-08-04 Institut Francais Du Petrole Process for dismutation and/or transalkylation of alyklaromatic hydrocarbons in the presence of two zeolitic catalysts

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