EA199801061A1 - Метилирование толуола до пара-ксилола - Google Patents

Метилирование толуола до пара-ксилола

Info

Publication number
EA199801061A1
EA199801061A1 EA199801061A EA199801061A EA199801061A1 EA 199801061 A1 EA199801061 A1 EA 199801061A1 EA 199801061 A EA199801061 A EA 199801061A EA 199801061 A EA199801061 A EA 199801061A EA 199801061 A1 EA199801061 A1 EA 199801061A1
Authority
EA
Eurasian Patent Office
Prior art keywords
para
zeolite
catalyst
xylene
methylation
Prior art date
Application number
EA199801061A
Other languages
English (en)
Other versions
EA002376B1 (ru
Inventor
Гари Д. Мор
Роберт С. Смит
Original Assignee
Эксон Кемикэл Пейтентс Инк.
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 Эксон Кемикэл Пейтентс Инк. filed Critical Эксон Кемикэл Пейтентс Инк.
Publication of EA199801061A1 publication Critical patent/EA199801061A1/ru
Publication of EA002376B1 publication Critical patent/EA002376B1/ru

Links

Classifications

    • 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
    • C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G11/02—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
    • C10G11/04—Oxides
    • C10G11/05—Crystalline alumino-silicates, e.g. molecular sieves
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/005—Mixtures of molecular sieves comprising at least one molecular sieve which is not an aluminosilicate zeolite, e.g. from groups B01J29/03 - B01J29/049 or B01J29/82 - B01J29/89
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/80—Mixtures of different zeolites
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/82—Phosphates
    • B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/82—Phosphates
    • B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
    • B01J29/85—Silicoaluminophosphates [SAPO compounds]
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
    • C07C2/66—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/861—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only halogen as hetero-atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/862—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms
    • C07C2/864—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms the non-hydrocarbon is an alcohol
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/862—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms
    • C07C2/865—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms the non-hydrocarbon is an ether
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/868—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains sulfur as hetero-atom
    • 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
    • C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
    • C07C4/06—Catalytic processes
    • 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
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2702—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously
    • C07C5/2708—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with crystalline alumino-silicates, e.g. molecular sieves
    • 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
    • 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
    • C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
    • C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
    • C07C5/41—Catalytic processes
    • 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
    • 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
    • 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
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/26—After treatment, characterised by the effect to be obtained to stabilize the total catalyst structure
    • 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
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/42—Addition of matrix or binder particles
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/084—Y-type faujasite
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
    • B01J29/44—Noble metals
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/50—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the erionite or offretite type, e.g. zeolite T, as exemplified by patent document US2950952
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/60—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the type L, as exemplified by patent document US3216789
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/7007—Zeolite Beta
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/87—Gallosilicates; Aluminogallosilicates; Galloborosilicates
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/03—Catalysts comprising molecular sieves not having base-exchange properties
    • C07C2529/035—Crystalline silica polymorphs, e.g. silicalites
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/50—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the eroionite or offretite type, e.g. zeolite T
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/80—Mixtures of different zeolites
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/82—Phosphates
    • C07C2529/83—Aluminophosphates (APO compounds)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/82—Phosphates
    • C07C2529/84—Aluminophosphates containing other elements, e.g. metals, boron
    • C07C2529/85—Silicoaluminophosphates (SAPO compounds)
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

В заявке описан способ получения параксилола метилированием толуола в присутствии связанного цеолитом цеолитного катализатора. Этот катализатор включает первые цеолитные кристаллы, которые связаны между собой вторыми цеолитными кристаллами. При применении для метилирования толуола до параксилола селективность связанного цеолитом цеолитного катализатора в отношении параксилола превышает ту, при которой достигается его термодинамически равновесная концентрация. Эту селективность можно повысить селективированием катализатора.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA199801061A 1996-05-29 1997-05-29 Способ получения параксилола EA002376B1 (ru)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US1854796P 1996-05-29 1996-05-29
US1858396P 1996-05-29 1996-05-29
US1855096P 1996-05-29 1996-05-29
US1855196P 1996-05-29 1996-05-29
US1839096P 1996-05-29 1996-05-29
US1854696P 1996-05-29 1996-05-29
PCT/US1997/009609 WO1997045387A1 (en) 1996-05-29 1997-05-29 Methylation of toluene to para-xylene

Publications (2)

Publication Number Publication Date
EA199801061A1 true EA199801061A1 (ru) 1999-06-24
EA002376B1 EA002376B1 (ru) 2002-04-25

Family

ID=27555889

Family Applications (1)

Application Number Title Priority Date Filing Date
EA199801061A EA002376B1 (ru) 1996-05-29 1997-05-29 Способ получения параксилола

Country Status (10)

Country Link
US (1) US5994603A (ru)
EP (1) EP0912473B1 (ru)
JP (1) JP2001504084A (ru)
CN (1) CN1083412C (ru)
AU (1) AU737003B2 (ru)
BR (1) BR9709620A (ru)
CA (1) CA2255873A1 (ru)
DE (1) DE69720998D1 (ru)
EA (1) EA002376B1 (ru)
WO (1) WO1997045387A1 (ru)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000511107A (ja) * 1996-05-29 2000-08-29 エクソン・ケミカル・パテンツ・インク 金属含有ゼオライト触媒、その製造、及び炭化水素の転化のための使用
CA2303172C (en) * 1997-12-03 2007-11-20 Exxon Chemical Patents, Inc. Preparation of zeolite bound by mfi structure type zeolite and use thereof
AU1620299A (en) 1997-12-03 1999-06-16 Exxon Chemical Patents Inc. Catalyst comprising a zeolite partially coated with a second zeolite, its use for hydrocarbon conversion
US6613708B1 (en) 1999-06-07 2003-09-02 Exxonmobil Chemical Patents Inc. Catalyst selectivation
US6388156B1 (en) 1999-05-14 2002-05-14 Exxonmobil Chemical Patents Inc. Direct selective synthesis of para-xylene by reacting an aromatic compound with a methylating agent formed from CO, Co2 and H2
US6459006B1 (en) 1999-05-14 2002-10-01 Exxonmobil Chemical Patents Inc. Selective methylation to para-xylene using fuel syngas
US6797155B1 (en) * 1999-12-21 2004-09-28 Exxonmobil Research & Engineering Co. Catalytic cracking process using a modified mesoporous aluminophosphate material
AU2001236985A1 (en) 2000-02-16 2001-08-27 Exxonmobil Chemical Patents Inc Treatment of molecular sieves with silicon containing compounds
CN1329296C (zh) * 2002-05-24 2007-08-01 三菱瓦斯化学株式会社 具八元氧环微孔的结晶硅铝磷酸盐分子筛、其制备方法和以此为催化剂生产甲胺的方法
US7119239B2 (en) * 2002-06-19 2006-10-10 Exxonmobil Chemical Patents Inc. Manufacture of xylenes using reformate
EP1523535A1 (en) * 2002-06-19 2005-04-20 Exxonmobil Chemical Patents Inc. Manufacture of xylenes from reformate
WO2004000767A1 (en) * 2002-06-19 2003-12-31 Exxonmobil Chemical Patents Inc. Manufacture of xylenes from reformate
US7255849B2 (en) * 2003-06-24 2007-08-14 Exxonmobil Research And Engineering Company EMM-3, new crystalline microporous material
EP1704132A1 (en) * 2003-12-31 2006-09-27 Exxonmobil Chemical Patents Inc. Process for aromatic alkylation
US6943131B1 (en) * 2004-03-02 2005-09-13 Saudi Basic Industries Corporation Selective zeolite catalyst modification
US7285511B2 (en) 2004-04-23 2007-10-23 Saudi Basic Industries Corporation Method of modifying zeolite catalyst
KR100598988B1 (ko) * 2005-05-18 2006-07-12 주식회사 하이닉스반도체 오버레이 버니어 및 이를 이용한 반도체소자의 제조방법
US7368410B2 (en) 2005-08-03 2008-05-06 Saudi Basic Industries Corporation Zeolite catalyst and method of preparing and use of zeolite catalyst
US7563358B2 (en) * 2006-08-24 2009-07-21 Exxonmobil Chemical Patents Inc. Process for the production of benzene, toluene, and xylenes
US7745675B2 (en) * 2006-12-20 2010-06-29 Saudi Basic Industries Corporation Regeneration of platinum-germanium zeolite catalyst
TWI478768B (zh) 2007-07-18 2015-04-01 China Petro Chemical Technologydevelopment Company Catalysts and methods for the production of light aromatics and light alkanes from hydrocarbon feedstocks
JP5520212B2 (ja) * 2008-03-27 2014-06-11 Ｊｘ日鉱日石エネルギー株式会社 パラ置換芳香族炭化水素の製造方法
CN101306974B (zh) * 2008-06-12 2011-03-30 江苏工业学院 一种催化合成对二甲基苯的方法
JP5495531B2 (ja) 2008-10-09 2014-05-21 Ｊｘ日鉱日石エネルギー株式会社 パラキシレン製造用合成ゼオライト触媒の製造方法、並びに該方法で製造したパラキシレン製造用触媒を用いた高純度パラキシレンの製造方法
US8846559B2 (en) 2008-11-03 2014-09-30 Saudi Basic Industries Corporation Stable shape-selective catalyst for aromatic alkylation and methods of using and preparing
US20120004487A1 (en) 2009-03-16 2012-01-05 Jx Nippon Oil & Energy Corporation Catalyst for producing para-substituted aromatic hydrocarbon and method for producing para-substituted aromatic hydrocarbon using the same
CN101885662B (zh) * 2009-05-13 2013-09-18 中国石油化工股份有限公司 甲苯甲醇烷基化的方法
US8062987B2 (en) 2009-10-05 2011-11-22 Saudi Basic Industries Corporation Phosphorus-containing zeolite catalysts and their method of preparation
JP5485639B2 (ja) * 2009-10-05 2014-05-07 山本化成株式会社 アルキルベンゼン誘導体の製造方法
JP5985139B2 (ja) * 2010-03-26 2016-09-06 Ｊｘエネルギー株式会社 パラキシレンを製造するための、ベンゼンのアルキル化反応、或いは、トルエンのアルキル化反応又はトルエンの不均化反応に用いる触媒及びその製造方法、並びにそれを用いたパラキシレンの製造方法
CN102464561B (zh) * 2010-11-17 2014-03-26 中国石油化工股份有限公司 甲醇或二甲醚和甲苯制备二甲苯的方法
CN102464549B (zh) * 2010-11-17 2013-12-25 中国石油化工股份有限公司 生产丙烯和对二甲苯的方法
CN102464560B (zh) * 2010-11-17 2014-03-26 中国石油化工股份有限公司 甲醇或二甲醚和甲苯生产二甲苯的方法
WO2012078373A2 (en) * 2010-12-10 2012-06-14 Exxonmobil Chemical Patents Inc. Method and apparatus for obtaining aromatics from diverse feedstock
US9181146B2 (en) 2010-12-10 2015-11-10 Exxonmobil Chemical Patents Inc. Process for the production of xylenes and light olefins
CN102875319B (zh) * 2011-07-12 2015-09-09 中国石油化工股份有限公司 芳烃甲基化的移动床催化方法
AU2012347625A1 (en) * 2011-12-08 2014-07-17 Gtc Technology Us, Llc Production of xylenes by methylation of aromatic compounds
WO2013147261A1 (ja) 2012-03-30 2013-10-03 Ｊｘ日鉱日石エネルギー株式会社 シリケート被覆ＭＦＩ型ゼオライトとその製造方法およびそれを用いたｐ－キシレンの製造方法
US9181147B2 (en) 2012-05-07 2015-11-10 Exxonmobil Chemical Patents Inc. Process for the production of xylenes and light olefins
US9278342B2 (en) 2012-07-02 2016-03-08 Saudi Basic Industries Corporation Method of modifying a phosphorus-containing zeolite catalyst
JP6127232B2 (ja) * 2012-07-19 2017-05-17 株式会社 Ａｃｒ 抗シンタリング触媒
CN103785461A (zh) * 2012-11-01 2014-05-14 中国石油化工股份有限公司 一种甲苯与甲醇烷基化的催化剂及其制备方法和应用
EP3036211B1 (en) * 2013-08-23 2019-09-25 Hindustan Petroleum Corporation Ltd. A process for the preparation of isomers of xylene
CN107001183B (zh) 2014-11-21 2020-02-14 埃克森美孚化学专利公司 制备对二甲苯的方法
CA2981736C (en) 2015-04-09 2023-05-09 Basf Corporation Zsm-5 catalyst
US10647633B2 (en) 2016-03-25 2020-05-12 Exxonmobil Chemical Patents Inc. Catalyst and process for the production of para-xylene
JP6743173B2 (ja) * 2016-03-25 2020-08-19 エクソンモービル・ケミカル・パテンツ・インク パラキシレンの製造用触媒およびプロセス
CN106902868B (zh) * 2017-03-09 2020-07-28 中国科学院山西煤炭化学研究所 一种改性催化剂及其制备方法和应用
EP3632545A4 (en) 2017-05-31 2021-01-27 Furukawa Electric Co., Ltd. STEAM REFORMING CATALYST STRUCTURE, REFORMING DEVICE WITH THE STEAM REFORMING CATALYST STRUCTURE, AND MANUFACTURING METHOD OF STEAM REFORMING CATALYST STRUCTURE
JP7340198B2 (ja) 2017-05-31 2023-09-07 国立大学法人北海道大学 機能性構造体及び機能性構造体の製造方法
EP3632554A4 (en) 2017-05-31 2021-04-21 Furukawa Electric Co., Ltd. EXHAUST GAS PURIFICATION OXIDATION CATALYST STRUCTURE AND PRODUCTION PROCESS, VEHICLE EXHAUST GAS TREATMENT DEVICE, CATALYST MOLDED BODY AND GAS PURIFICATION PROCESS.
US11161101B2 (en) 2017-05-31 2021-11-02 Furukawa Electric Co., Ltd. Catalyst structure and method for producing the catalyst structure
WO2018221706A1 (ja) 2017-05-31 2018-12-06 古河電気工業株式会社 メタノール改質触媒構造体、メタノール改質用装置、メタノール改質触媒構造体の製造方法及びオレフィンまたは芳香族炭化水素の少なくとも一方の製造方法
WO2018221698A1 (ja) 2017-05-31 2018-12-06 古河電気工業株式会社 Ｃｏシフトもしくは逆シフト触媒構造体及びその製造方法、ｃｏシフトまたは逆シフト反応装置、二酸化炭素と水素の製造方法、並びに一酸化炭素と水の製造方法
EP3632553A4 (en) * 2017-05-31 2021-01-06 Furukawa Electric Co., Ltd. CATALYST STRUCTURE FOR THE PRODUCTION OF AROMATIC HYDROCARBONS WITH THE CATALYST STRUCTURE FOR THE PRODUCTION OF AROMATIC HYDROCARBONS PROVIDED DEVICE FOR PRODUCING AROMATIC HYDROCARBONS, PROCESS FOR PRODUCING A CATALYST STRUCTURE FOR THE PRODUCTION OF AROMATIC HYDROCARBONS AND PROCESS FOR AROMATIC HYDROCARBONS
JP7352910B2 (ja) 2017-05-31 2023-09-29 国立大学法人北海道大学 機能性構造体及び機能性構造体の製造方法
WO2018221703A1 (ja) 2017-05-31 2018-12-06 古河電気工業株式会社 接触分解用又は水素化脱硫用触媒構造体、該触媒構造体を有する接触分解装置及び水素化脱硫装置、並びに接触分解用又は水素化脱硫用触媒構造体の製造方法
CN110691645A (zh) 2017-05-31 2020-01-14 国立大学法人北海道大学 功能性结构体以及功能性结构体的制造方法
EP3632555A4 (en) 2017-05-31 2021-01-27 Furukawa Electric Co., Ltd. HYDRO DESULFURIZATION CATALYST STRUCTURE, HYDRO DESULFURIZATION DEVICE PROVIDED WITH THIS CATALYST STRUCTURE, AND METHOD FOR MANUFACTURING A HYDRODESULFURIZATION CATALYST STRUCTURE
US10450240B2 (en) 2017-11-10 2019-10-22 Uop Llc Processes and apparatuses for methylation of aromatics in an aromatics complex
CN114425422B (zh) * 2020-09-23 2024-01-30 中国石油化工股份有限公司 复合分子筛催化剂、制备方法及其应用
WO2023204947A1 (en) 2022-04-19 2023-10-26 Exxonmobil Chemical Patents Inc. Processes for oxidizing p-xylene or p-xylene-containing mixtures
WO2023244394A1 (en) 2022-06-14 2023-12-21 Exxonmobil Chemical Patents Inc. Production of p-xylene by liquid-phase isomerization and separation thereof
WO2023244389A1 (en) 2022-06-14 2023-12-21 Exxonmobil Chemical Patents Inc. Production of p-xylene by liquid-phase isomerization in the presence of c9+ aromatic hydrocarbons and separation thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002697A (en) * 1973-12-03 1977-01-11 Mobil Oil Corporation Selective production of para-xylene
US4100215A (en) * 1974-09-25 1978-07-11 Mobil Oil Corporation Selective production of para-xylene
US3965207A (en) * 1975-01-06 1976-06-22 Mobil Oil Corporation Selective production of para-xylene
US4358395A (en) * 1978-09-11 1982-11-09 Mobil Oil Corporation Hydrogen regeneration of coke-selectivated crystalline aluminosilicate catalyst
US4289607A (en) * 1979-04-09 1981-09-15 Mobil Oil Corporation Catalytic conversion with crystalline zeolite product constituting ZSM-5/ZSM-11 intermediates
DE2924116A1 (de) * 1979-06-15 1980-12-18 Interatom Vorrichtung zum veraendern eines fluessigmetallstromes in einen kanal
US4358362A (en) * 1981-01-15 1982-11-09 Mobil Oil Corporation Method for enhancing catalytic activity
US4670616A (en) * 1985-11-25 1987-06-02 Amoco Corporation AMS-1B crystalline borosilicate molecular sieve-based catalyst compositions and process for toluene methylation
FR2600557B1 (fr) * 1986-06-24 1993-03-19 Elf France Systemes zeolitiques binaires, leur synthese et leur utilisation
US4746763A (en) * 1987-04-22 1988-05-24 Uop Inc. Process for producing aromatic compounds from C2 -C6 aliphatic hydrocarbons
GB9101456D0 (en) * 1991-01-23 1991-03-06 Exxon Chemical Patents Inc Process for producing substantially binder-free zeolite
US5349113A (en) * 1993-02-25 1994-09-20 Mobil Oil Corp. Shape selective hydrocarbon conversion over pre-selectivated, activated catalyst
CA2206891C (en) * 1994-11-23 2007-03-20 Exxon Chemical Patents, Inc. Hydrocarbon conversion process using a zeolite bound zeolite catalyst
ZA978671B (en) * 1996-10-02 1999-03-26 Mobil Oil Corp Selective para-xylene production by toluene methylation

Also Published As

Publication number Publication date
EP0912473A1 (en) 1999-05-06
CN1224408A (zh) 1999-07-28
CN1083412C (zh) 2002-04-24
US5994603A (en) 1999-11-30
DE69720998D1 (de) 2003-05-22
AU3228997A (en) 1998-01-05
AU737003B2 (en) 2001-08-09
WO1997045387A1 (en) 1997-12-04
CA2255873A1 (en) 1997-12-04
JP2001504084A (ja) 2001-03-27
BR9709620A (pt) 1999-08-10
EA002376B1 (ru) 2002-04-25
EP0912473B1 (en) 2003-04-16

Similar Documents

Publication Publication Date Title
EA199801061A1 (ru) Метилирование толуола до пара-ксилола
EA199801037A1 (ru) Способы конверсии ароматических углеводородов и используемый в этих способах цеолитный катализатор
NL7804288A (nl) Synthetisch kristallijn aluminosilicaat-zeoliet, werk- wijze ter bereiding daarvan en werkwijze voor het kata- lytisch omzetten van organische verbindingen.
DE59508645D1 (de) Katalysator für die Dehydrierung von C6-bis C15-Paraffinen
FR2679353B1 (fr) Procede de mise en page de documents structures.
BR9105747A (pt) Catalisador,sistema catalisador,e,processo para polimerizar pelo menos uma olefina
DE3854861D1 (de) Mit langkettigen N,N-Dialkylhydroxylaminen stabilisierte Polyolefinzusammensetzungen
DE69715248D1 (de) Kohlenwasserstoffumwandlung mittels grosse zeolithkristalle aufweisendem katalysator
NO873099D0 (no) Katalysatorblandinger for polyisocyanuratskum.
IT1237055B (it) Sistema di produzione per pozzi di petrolio sottomarini.
DK163983C (da) Stejltransportoer, isaer til losning af skibe
FI954556A (fi) Syklisiä yhdisteitä, jotka ovat käyttökelpoisia verihiutaleen glykoproteiinin IIb/IIIa inhibiittoreina
DE59004501D1 (de) Verfahren zur katalytischen Gasphasen-Dehydrierung von Kohlenwasserstoffen, insbesondere von Alkylaromaten.
DK0589511T3 (da) Forbedret fremgangsmåde til fremstilling af liniærealkylbenzener
ES2090840T3 (es) Procedimiento de purificacion de un hidrofluoroalcano.
BR9403249A (pt) Zeólitos de poros grandes modificados para aprisionamento de alcenos
NO20023877L (no) Katalysatorforbehandling i et reaksjonssystem for oksygenatet til olefiner
NO832340L (no) Vendemekanisme, saerlig for semivendeplog
DE69324194D1 (de) Katalysator und verfahren zur dehydrierung von kohlenwasserstoffen
DE69311367D1 (de) Entfärbung von alkylierten diarylaminen
KR950017876A (ko) 프로필렌/프로판 혼합물의 분리방법
IT7831041A0 (it) Processo per la purificazione di olefine.
DE60009432D1 (de) Verfahren zur selektiven Herstellung von Propen aus Kohlenwasserstoffschnitten mit vier Kohlenstoffatomen
DK0555253T3 (da) Fremgangsmåde til fremstilling af isopropylnaphthalen
FR2705971B1 (fr) Production de gamma-décalactone par bioconversion.

Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM RU