BE757571A - P-xylene from toluene by disproportionation - and isomerisation - Google Patents

P-xylene from toluene by disproportionation - and isomerisation

Info

Publication number
BE757571A
BE757571A BE757571DA BE757571A BE 757571 A BE757571 A BE 757571A BE 757571D A BE757571D A BE 757571DA BE 757571 A BE757571 A BE 757571A
Authority
BE
Belgium
Prior art keywords
xylene
toluene
contg
disproportionation
isomerisation
Prior art date
Application number
Other languages
French (fr)
Inventor
J J Wise
Original Assignee
Mobil Oil Corp
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.)
Publication date
Publication of BE757571A publication Critical patent/BE757571A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/067—C8H10 hydrocarbons
    • C07C15/08—Xylenes
    • 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
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
    • C07C5/2732—Catalytic processes
    • C07C5/2737—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
    • 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
    • C07C6/123—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 only one hydrocarbon

Landscapes

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

Abstract

P-xylene is produced by (i) disproportionation of aromatic hydrocarbons contg. toluene at less than 371 degrees C in the presence of an aluminosilicate catalyst, (ii) separating effluent into fraction contg. xylenes from which p-xylene is isolated (iii) isomerising remaining xylenes to p-xylene at 177-343 degrees C in the presence of a crystalline alumino silicate catalyst (iv) fractionating effluent into a toluene-contg. fraction (recycled to zone (i)) and a xylene-contg. fractione (recycled to zone (ii)).
BE757571D 1969-10-17 P-xylene from toluene by disproportionation - and isomerisation BE757571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86717169A 1969-10-17 1969-10-17

Publications (1)

Publication Number Publication Date
BE757571A true BE757571A (en) 1971-04-15

Family

ID=25349268

Family Applications (1)

Application Number Title Priority Date Filing Date
BE757571D BE757571A (en) 1969-10-17 P-xylene from toluene by disproportionation - and isomerisation

Country Status (1)

Country Link
BE (1) BE757571A (en)

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