GB1481636A – Isomerising alkylaromatic hydrocarbons
– Google Patents
GB1481636A – Isomerising alkylaromatic hydrocarbons
– Google Patents
Isomerising alkylaromatic hydrocarbons
Info
Publication number
GB1481636A
GB1481636A
GB14793/75A
GB1479375A
GB1481636A
GB 1481636 A
GB1481636 A
GB 1481636A
GB 14793/75 A
GB14793/75 A
GB 14793/75A
GB 1479375 A
GB1479375 A
GB 1479375A
GB 1481636 A
GB1481636 A
GB 1481636A
Authority
GB
United Kingdom
Prior art keywords
alumina
alkylaromatic hydrocarbons
catalyst
per cent
isomerising
Prior art date
1971-03-12
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
GB14793/75A
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.)
1971-03-12
Filing date
1975-04-10
Publication date
1977-08-03
1971-03-12
Priority claimed from GB667471A
external-priority
patent/GB1386801A/en
1975-04-10
Application filed by Imperial Chemical Industries Ltd
filed
Critical
Imperial Chemical Industries Ltd
1975-04-10
Priority to GB14793/75A
priority
Critical
patent/GB1481636A/en
1976-03-29
Priority to US05/671,545
priority
patent/US4094919A/en
1976-04-05
Priority to BE165863A
priority
patent/BE840399R/en
1976-04-07
Priority to IT22058/76A
priority
patent/IT1058375B/en
1976-04-07
Priority to NL7603636A
priority
patent/NL7603636A/en
1976-04-08
Priority to DE19762615386
priority
patent/DE2615386A1/en
1976-04-09
Priority to FR7610518A
priority
patent/FR2332249A2/en
1976-04-10
Priority to JP51040824A
priority
patent/JPS51128922A/en
1977-08-03
Publication of GB1481636A
publication
Critical
patent/GB1481636A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
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
C07C5/2729—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
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
1481636 Isomerizing alkylaromatic hydrocarbons IMPERIAL CHEMICAL INDUSTRIES Ltd 24 March 1976 [10 April 1975] 14793/75 Addition to 1386801 Heading C5E Alkylaromatic hydrocarbons are isomerized in the presence of a silica/alumina catalyst of which the alumina content has been reduced by at least 1% of the total alumina originally present, the catalyst comprising before such alumina-reducing treatment 2-40 wt. per cent alumina and after treatment at least 1% and less than 6% by wt. alumina. Isomerization conditions are 200-600‹ C., 0À5-50 atmospheres pressure and the presence of 100-10,000 p.p.m. steam. Examples describe the isomerization of xylenes, which may be carried out in the presence of 1-20 wt. per cent of octahydroanthracene, tetralin, decalin, cyclohexane, cyclooctane, cyclohexylcyclohexane or the alkyl derivatives of these compounds.
GB14793/75A
1971-03-12
1975-04-10
Isomerising alkylaromatic hydrocarbons
Expired
GB1481636A
(en)
Priority Applications (8)
Application Number
Priority Date
Filing Date
Title
GB14793/75A
GB1481636A
(en)
1971-03-12
1975-04-10
Isomerising alkylaromatic hydrocarbons
US05/671,545
US4094919A
(en)
1975-04-10
1976-03-29
Hydrocarbon conversion processes and catalysts
BE165863A
BE840399R
(en)
1971-03-12
1976-04-05
METHODS AND CATALYSTS FOR THE CONVERSION OF HYDROCARBONS
IT22058/76A
IT1058375B
(en)
1975-04-10
1976-04-07
CONVERION PROCESS OF HYDROCARBONS AND RELATED CATALYSTS
NL7603636A
NL7603636A
(en)
1971-03-12
1976-04-07
PROCEDURE FOR ISOMERIZING AN ALKYL-AROMATIC HYDROCARBON, AND PROCEDURE FOR PREPARING A CATALYST THAT CAN BE USED THEREIN, AND THE CATALYST OBTAINED BY THIS PROCESS.
DE19762615386
DE2615386A1
(en)
1971-03-12
1976-04-08
METHOD FOR CATALYTIC ISOMERIZATION OF ALKYLAROMATIC HYDROCARBONS AND CATALYST FOR THIS PROCESS
FR7610518A
FR2332249A2
(en)
1971-03-12
1976-04-09
Isomerisation of alkylaromatic hydrocarbons – using silica-alumina catalysts with reduced alumina content
JP51040824A
JPS51128922A
(en)
1975-04-10
1976-04-10
Isomerization of alkylaromatic hydrocarbons
Applications Claiming Priority (3)
Application Number
Priority Date
Filing Date
Title
GB667471A
GB1386801A
(en)
1971-03-12
1971-03-12
Hydrocarbon conversion processes and catalysts
GB1273871
1971-05-03
GB14793/75A
GB1481636A
(en)
1971-03-12
1975-04-10
Isomerising alkylaromatic hydrocarbons
Publications (1)
Publication Number
Publication Date
GB1481636A
true
GB1481636A
(en)
1977-08-03
Family
ID=27254876
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB14793/75A
Expired
GB1481636A
(en)
1971-03-12
1975-04-10
Isomerising alkylaromatic hydrocarbons
Country Status (2)
Country
Link
BE
(1)
BE840399R
(en)
GB
(1)
GB1481636A
(en)
1975
1975-04-10
GB
GB14793/75A
patent/GB1481636A/en
not_active
Expired
1976
1976-04-05
BE
BE165863A
patent/BE840399R/en
active
Also Published As
Publication number
Publication date
BE840399R
(en)
1976-10-05
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Legal Events
Date
Code
Title
Description
1977-12-14
PS
Patent sealed
1984-10-31
PCNP
Patent ceased through non-payment of renewal fee
