EP0146111A2
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Catalyst precursor prepared from manganese carbonate, and use of a calcined derivative in an ortho-alkylation process
Assignee: General Electric Co
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Filing: 1984-12-12
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Granted: —
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Expires: 2004-12-12
Abstract
Abstract A catalyst precursor comprised of a dry admixture of manganese carbonate and at least one material selected from among magnesium carbonate, basic magnesium carbonate and magnesium hydroxide. The precursor is calcinable at elevated temperatures to an activated catalyst which may be used in a process for the ortho-alkylation of phenolic compounds.
Inventors
- 👤 James Gordy Bennett, Jr.
- 👤 Freddie Lee Tungate
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 13:13
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/20; B01J23/00; B01J23/16; B01J23/32; B01J23/34; C; C07; C07C; C07C37/00; C07C37/11; C07C37/16
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
40 words
A catalyst precursor capable of being calcined to an active catalyst, comprising a dry admixture of (a) manganese carbonate; and (b) one or more magnesium-containing materials selected from the group consisting of magnesium carbonate, basic magnesium carbonate and magnesium hydroxide.
Claim 2
Dependent Claim
40 words
A catalyst precursor capable of being calcined to an active catalyst, comprising a dry admixture of (a) manganese carbonate; and (b) one or more magnesium-containing materials selected from the group consisting of magnesium carbonate, basic magnesium carbonate and magnesium hydroxide.
Claim 3
Dependent Claim
13 words
A precursor according to Claim 1, in which (b) is basic magnesium carbonate.
Claim 4
Dependent Claim
12 words
A precursor according to Claim 1, in which (b) is magnesium carbonate.
Claim 5
Dependent Claim
12 words
A precursor according to Claim 1, in which (b) is magnesium hydroxide.
Claim 6
Dependent Claim
19 words
A precursor according co Claim 1, which contains a minor amount of (a) and a major amount of (b).
Claim 7
Dependent Claim
22 words
A precursor according co Claim 5. which has a manganese content of between 0.5 and 1.5% by weight of the magnesium-containing material.
Claim 8
Dependent Claim
15 words
A precursor according to Claim 1, which includes (c) a binder for (a) and (b).
Claim 9
Dependent Claim
16 words
A precursor according to Claim 7, in which the binder is a polyphenylene ether (oxide) resin.
Claim 10
Dependent Claim
16 words
A precursor according to Claim 8, in which the polyphenylene ether (oxide) resin is poly-(2,6-dimethyl-1,4-phenylene ether).
Claim 11
Dependent Claim
11 words
A catalyst precursor according to Claim 1, which has been shaped.
Claim 12
Dependent Claim
13 words
An activated catalyst, comprising the precursor of Claim 1 which has been calcined.
Claim 13
Dependent Claim
13 words
An activated catalyst, comprising the precursor of Claim 2 which has been calcined.
Claim 14
Dependent Claim
13 words
An activated catalyst, comprising the precursor of Claim 9 which has been calcined.
Claim 15
Dependent Claim
68 words
In a process for preparing ortho-alkylated phenols by reacting in the vapor phase an alkyl alcohol and a phenolic compound or compounds in the presence of an alkylation catalyst, the improvement wherein the catalyst is a calcined product derived by heating a dry mixture of manganese carbonate and one or more magnesium containing materials selected from the group consisting of magnesium carbonate, basic magnesium carbonate and magnesium hydroxide.
Claim 16
Dependent Claim
68 words
In a process for preparing ortho-alkylated phenols by reacting in the vapor phase an alkyl alcohol and a phenolic compound or compounds in the presence of an alkylation catalyst, the improvement wherein the catalyst is a calcined product derived by heating a dry mixture of manganese carbonate and one or more magnesium containing materials selected from the group consisting of magnesium carbonate, basic magnesium carbonate and magnesium hydroxide.
Claim 17
Dependent Claim
54 words
A process according to Claim 14, in which the phenolic compound(s) is (are) represented by the formula in which R, independently, is a monovalent substituent selected from the group consisting of hydrogen, alkyl (preferably C 1 to C 12 alkyl), phenyl, and alkyl substituted phenyl (preferably C 1 to C 12 alkyl substituted phenyl).
Claim 18
Dependent Claim
25 words
A process according to Claim 14, in which the alkyl alcohol is a branched or linear saturated alcohol having up to about 16 carbon atoms.
Claim 19
Dependent Claim
16 words
A process according to Claim 14, in which the magnesium containing material is basic magnesium carbonate.
Claim 20
Dependent Claim
15 words
A process according to Claim 14, in which the magnesium containing material is magnesium carbonate.
Claim 21
Dependent Claim
15 words
A process according to Claim 14, in which the magnesium containing material is magnesium hydroxide.
Claim 22
Dependent Claim
25 words
A process according to Claim 14, in which the catalyst has a manganese content of between 0.5 and 1.5% by weight of the magnesium-containing material.
Claim 23
Dependent Claim
22 words
A process according to Claim 14, in which the catalyst has a surface area of at least 25 square meters per gram.
Claim 24
Dependent Claim
23 words
A process according to Claim 14, in which the catalyst has a surface area of from 25 to 450 square meters per gram.
Claim 25
Dependent Claim
19 words
A process according to Claim 14. in which the reaction is conducted at a temperature of at least 300°C.
Claim 26
Dependent Claim
22 words
A process according to Claim 14. in which the reaction is conducted at a temperature of from about 350 to about 500°C.
Claim 27
Dependent Claim
23 words
A process according to Claim 14, in which the alkyl alcohol is methanol and the co-reactant is a mixture of phenol and ortho-cresol.
Claim 28
Dependent Claim
25 words
A process according to Claim 25, which comprises from about two to about six moles of methanol for each mole of phenol and ortho-cresol combined.
References Cited (Backward Citations)
No citation records indexed.
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