Patent EP0202752A1 successfully refreshed from Google Patents.
EP0202752A1
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Alkylation process
Assignee: Imperial Chemical Industries Ltd
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Filing: 1986-04-10
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Granted: —
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Expires: 2006-04-10
Abstract
Abstract Alkylated multi-ring aromatic hydrocarbons, for example alkylated derivatives of naphthalene or biphenyl, are produced by contacting the corresponding multi-ring aromatic hydrocarbon with an alkylating agent, preferably xylenes, in the presence of a zeolite catalyst for example ZSM-5 or ZSM-11. In a preferred embodiment of the process the alkylation of naphthalene over H-ZSM-5 using xylene as the alkylating agent shows clear B- and BB'- selectivity to desired products with only small production of undesirable by-products.
Inventors
- 👤 Roy John Sampson
- 👤 Charles Barrie Hanson
- 👤 John Paton Candlin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 00:47
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/08; C07C6/12; C07C6/123; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/86; C07C2/861; C07C6/126; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
61 words
A process for the production of alkylated derivatives of multi-ring aromatic hydrocarbon compounds which comprises contacting a multi-ring aromatic hydrocarbon compound with an alkylating agent in the presence of a catalyst comprising a crystalline medium - or large - pore zeolite or zeolitic material, the alkylating agent being selected from the group consisting of olefinic hydrocarbons, alkyl halides and alkylaromatic hydrocarbons.
Claim 2
Dependent Claim
61 words
A process for the production of alkylated derivatives of multi-ring aromatic hydrocarbon compounds which comprises contacting a multi-ring aromatic hydrocarbon compound with an alkylating agent in the presence of a catalyst comprising a crystalline medium - or large - pore zeolite or zeolitic material, the alkylating agent being selected from the group consisting of olefinic hydrocarbons, alkyl halides and alkylaromatic hydrocarbons.
Claim 3
Dependent Claim
18 words
A process as claimed in claim 1 wherein the alkylating agent comprises an alkylated benzene or alkylated naphthalene.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 1 or claim 2 wherein the alkylating agent comprises a xylene or mixture of xylenes.
Claim 5
Dependent Claim
29 words
A process as claimed in any one of the preceding claims wherein the multi-ring hydrocarbon compound comprises either naphthalene or a naphthalene derivative or biphenyl or a biphenyl derivative.
Claim 6
Dependent Claim
22 words
A process as claimed in any one of the preceding claims wherein the zeolite comprisesa zeolite of the ZSM-5 type or ZSM-11.
Claim 7
Dependent Claim
21 words
A process as claimed in claim 5 whrein the zeolite comprises a zeolite containing a proportion of magnesium and/or phosphorus compounds.
References Cited (Backward Citations)
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