GB1355346A - Catalysts and process using them - Google Patents

Catalysts and process using them

Info

Publication number
GB1355346A
GB1355346A GB4015470A GB1355346DA GB1355346A GB 1355346 A GB1355346 A GB 1355346A GB 4015470 A GB4015470 A GB 4015470A GB 1355346D A GB1355346D A GB 1355346DA GB 1355346 A GB1355346 A GB 1355346A
Authority
GB
United Kingdom
Prior art keywords
paraxylene
isomerized
aug
alumina
silica
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
GB4015470A
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
Publication of GB1355346A publication Critical patent/GB1355346A/en
Expired 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
    • C07C5/22—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
    • C07C5/2735—Catalytic processes with metal oxides
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/12—Silica and alumina
    • 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
    • C07C5/2705—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with metal oxides
    • 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
    • C07C5/22—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
    • 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

Abstract

1355346 Isomerizing alkylbenzenes IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Aug 1971 [20 Aug 1970] 40154/70 Heading C5E [Also in Division B1] Alkyl benzenes are isomerized in the presence of a catalyst which comprises a support of silica, silica/alumina or aluminosilicate on the surface of which alumina has been deposited. In particular one or more xylenes containing less than an equilibrium amount of paraxylene are isomerized to produce a product containing a greater concentration of paraxylene. Reaction conditions are 200-600‹ C., 1-500 atmos. pressure, the reaction being carried out in the liquid or gas phase optionally in the presence of steam or ammonia. In the examples a mixture of paraxylene, metaxylene and toluene is isomerized.
GB4015470A 1970-08-20 1970-08-20 Catalysts and process using them Expired GB1355346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4015470 1970-08-20

Publications (1)

Publication Number Publication Date
GB1355346A true GB1355346A (en) 1974-06-05

Family

ID=10413456

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4015470A Expired GB1355346A (en) 1970-08-20 1970-08-20 Catalysts and process using them

Country Status (1)

Country Link
GB (1) GB1355346A (en)

Similar Documents

Publication Publication Date Title
CA1036179A (en) Hydrocarbon alkylation process using catalyst regeneration
ES471957A1 (en) A process for isomerizing xylenes.
ES2007545A6 (en) Alkylation of aromatic hydrocarbons in a fixed bed catalytic process.
BE819849A (en) XYLEN ISOMERIZATION PROCESS
GB1429077A (en) Process for the isomerization of hydrocarbons
RU96107973A (en) METHOD FOR CATALYTIC ISOMERIZATION OF C8-AROMATIC COMPOUNDS
MX9601503A (en) Aromatics isomerization using a modified silicoaluminophosphate.
BE831966A (en) HYDROCARBON ISOMERIZATION CATALYSTS, PROCESS FOR THE PREPARATION OF SUCH CATALYSTS AND APPLICATION OF THEM
GB1355346A (en) Catalysts and process using them
GB1326653A (en) Production of benzene
GB1456335A (en) Process for preparing diphenylamine from aniline
GB1386801A (en) Hydrocarbon conversion processes and catalysts
US3833679A (en) Paraffin isomerization utilizing hf to change the selectivity of hsbf6 catalyst
ES8506542A1 (en) Crystalline zincosilicate.
GB1444481A (en) Xylene isomerization
US2719183A (en) Isomerization of xylenes
BE817213A (en) PROCESS FOR INHIBITING ISOMERIZATION AND REACTION OF OLEFINS DURING CATALYTIC DISPLACEMENT
GB1254462A (en) A catalyst for use in transalkylation of alkyl-bezenes
CA1098102A (en) Pretreating process for the stabilization of a catalyst for the conversion of aromatic hydrocarbons
GB1262942A (en) Transalkylation process
GB1415004A (en) Alkyl benzene isomerisation process
US2617838A (en) Isomerization of aromatic compounds
ES418332A1 (en) Preparation of alkylated or non-alkylated dihydrocoumarin together with the corresponding alkylated, or non-alkylated, coumarin
GB1355344A (en) Dealkylation of aromatic hydrocarbons
GB1459047A (en) Isomerization catalyst reactivation process

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee