EP0045618A2
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EP
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Method for promoting the activity of a catalyst in the production of esters by the reaction of an olefin with a carboxylic acid
Assignee: BP PLC
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Filing: 1981-07-28
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Granted: —
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Expires: 2001-07-28
Abstract
Abstract The activity of cation-exchangeable layered clay or crystalline aluminosilicate catalyst in esterification, etherification, hydration, and cracking reactions is promoted by addition of a strong acid such as sulphuric acid, phosphoric acid, hydrochloric acid, hydrofluoric acid or para-toluene sulphonic acid. The further addition of water to the reaction can extend the life of the clay catalyst and in some cases its catalytic activity.
Inventors
- 👤 Reginald Gregory
- 👤 David Jack Westlake
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 07:11
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; C07; C07C; C07C29/00; C07C29/03; C07C29/04; C07C41/00; C07C41/01; C07C41/05; C07C41/06; C07C67/00; C07C67/04
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
31 words
A method for promoting the activity of a cation-exchangeable layered clay or crystalline aluminosilicate catalyst in esterification, hydration, etherification, and cracking reactions which method comprises the addition of a strong acid.
Claim 2
Independent Claim
31 words
A method for promoting the activity of a cation-exchangeable layered clay or crystalline aluminosilicate catalyst in esterification, hydration, etherification, and cracking reactions which method comprises the addition of a strong acid.
Claim 3
Dependent Claim
29 words
A method according to claim 1 wherein the clay or aluminosilicate is exchanged with one or more of chromium, cobalt, nickel, iron, copper, vanadium, ammonium, magnesium and calcium ions.
Claim 4
Dependent Claim
16 words
A method according to claim 1 wherein the clay or aluminosilicate is exchanged with hydrogen ions.
Claim 5
Independent Claim
28 words
A method according to any one of the preceding claims wherein the reaction is the formation of esters by the reaction of an alcohol with a carboxylic acid.
Claim 6
Independent Claim
29 words
A method according to any one of claims 1 to 3 wherein the reaction is the formation of esters by the reaction of an olefin with a carboxylic acid.
Claim 7
Dependent Claim
24 words
A method according to claim 5 wherein the olefin is ethylene, the carboxylic acid is acetic acid and the ester produced is ethyl acetate.
Claim 8
Independent Claim
24 words
A method according to any one of claims 1 to 3 wherein the reaction is the formation of alcohols by the hydration of olefins.
Claim 9
Dependent Claim
17 words
A method according to claim 7 wherein the olefin is ethylene and the product is ethyl alcohol.
Claim 10
Independent Claim
28 words
A method according to any one of claims 1 to 3 wherein the reaction is the formation of ethers by the reaction of an alcohol with an olefin.
Claim 11
Dependent Claim
23 words
A method according to claim 9 wherein the alcohol is methanol, the olefin is isobutene and the ether produced is methyl tertiary-butyl ether.
Claim 12
Independent Claim
29 words
A method according to any one of claims 1 to 3 wherein the reaction is the formation of ethers by reaction of a primary or secondary aliphatic,alcohol or polyol.
Claim 13
Dependent Claim
21 words
12 . A method according to any one of claims 1 to 3 wherein the reaction is the cracking of hydrocarbons.
Claim 14
Dependent Claim
30 words
13 . A method according to any one of the preceding claims wherein the strong acid is either sulphuric acid, phosphoric acid, hydrochloric acid, hydrofluoric acid or para-toluene sulphonic acid.
Claim 15
Dependent Claim
34 words
14 . A method according to any one of the preceding claims wherein the strong acid is added in an amount up to 10% by weight, based on the total weight of the reactants.
Claim 16
Dependent Claim
22 words
15 . A method according to claim 14 wherein the strong acid is added in an amount up to 2.0% by weight.
Claim 17
Dependent Claim
22 words
16 . A method according to any one of claims 1 to 6 and 9 to 15 wherein water is also added.
Claim 18
Dependent Claim
27 words
17 . A method according to claim16 wherein the water is added in an amount up to 20% by weight, based on the total weight of reactants.
Claim 19
Dependent Claim
20 words
18 . A method according to claim 17 wherein water is added in an amount up to 10% by weight.
References Cited (Backward Citations)
No citation records indexed.
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