EP0051318A1
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EP
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A catalyst composition containing as catalytically active components alumina and a cristalline Aluminosilicate zeolite, a process for isomerizing xylenes and ethylbenzene, and use of this catalyst composition
Assignee: Teijin Petrochemical Industries Ltd
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Filing: 1981-11-03
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Granted: —
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Expires: 2001-11-03
Abstract
Abstract A novel crystalline aluminosilicate zeolite characterized by having a composition of the following general formula expressed in terms of the mole ratios of oxides in the anhydrous state wherein M represents at least one cation having a valence of n, x is a number between 0.5 and 4, and y is a number of at least 10, and having a specific X-ray diffraction pattern. Said crystalline aluminosilicate zeolite can be produced by maintaining a mixture of a water-soluble alkali metal compound, an N,N,N,N',N' ,N'-hexamethyl-1,6-hexane diammonium compound, a compound capable of giving silica under the reaction conditions, a compound capable of giving alumina under the reaction conditions and water, at a temperature of at least 80°C for a period sufficient to form crystals, and is useful as a catalyst for, for example, transalkylation or alkylation reaction of toluene, isomerization of xylene, isomerization of ethylbenzene to xylenes, etc.
Inventors
- 👤 Koji Sumitani
- 👤 Tokuji Sakai
- 👤 Yasuo Yamasaki
- 👤 Tamio Onodera
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 17:24
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7023; B01J29/7049; B01J29/7073; B01J29/72; B01J29/74; B01J29/7446; B01J29/76; B01J29/7646; B01J29/78; B01J29/7846; C; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48; C07; C07C; C07C1/00; C07C1/20; C07C2/00; C07C2/86; C07C2/862; C07C2/864; C07C4/00; C07C4/02; C07C4/06; C07C4/08; C07C4/12; C07C4/14; C07C4/18; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2708; C07C5/2767; C07C5/277; C07C5/2775; C07C5/32; C07C5/373; C07C5/387; C07C6/00; C07C6/08; C07C6/12; C07C6/123; C07C6/126; B01J2229/00; B01J2229/30; B01J2229/36; C07C2529/00; C07C2529/04; C07C2529/06; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
70 words
A crystalline aluminosilicate zeolite characterized by having a composition of the following general formula expressed in terms of the mole ratios of oxides in the anhydrous state wherein M represents at least one cation having a valence of n, x is a number between 0.5 and 4, and y is a number of at least 10, = and having an X-ray diffraction pattern showing at least the following significant peaks
Claim 2
Dependent Claim
70 words
A crystalline aluminosilicate zeolite characterized by having a composition of the following general formula expressed in terms of the mole ratios of oxides in the anhydrous state wherein M represents at least one cation having a valence of n, x is a number between 0.5 and 4, and y is a number of at least 10, = and having an X-ray diffraction pattern showing at least the following significant peaks
Claim 3
Dependent Claim
16 words
The zeolite of claim 1 wherein M is selected from a hydrogen ion and metal cations.
Claim 4
Dependent Claim
26 words
The zeolite of claim 2 wherein the metal cations are selected from cations of metals of Groups I, II, III and VIII of the periodic table.
Claim 5
Dependent Claim
28 words
The zeolite of claim 1 wherein M is selected from a hydrogen ion and metal cations of metals of Groups IA, IIA and IIIB of the periodic table.
Claim 6
Dependent Claim
14 words
The zeolite of claim 1 wherein x is a number between 0.9 and 3.
Claim 7
Dependent Claim
17 words
The zeolite of claim 1 wherein y is a number in the range of 10 to 2,000.
Claim 8
Dependent Claim
17 words
The zeolite of claim 6 wherein y is a number in the range of 10 to 500.
Claim 9
Dependent Claim
18 words
The zeolite of claim 1 wherein the cyclohexane/n-hexane sorption ratio of the zeolite is not more than 0.95.
Claim 10
Dependent Claim
19 words
The zeolite of claim 8 wherein the cyclohexane/n-hexane sorption ratio is in the range of from 0.1 to 0.95.
Claim 11
Dependent Claim
103 words
A process for producing the crystalline aluminosilicate zeolite defined in claim 1, which comprises maintaining a mixture of a water-soluble alkali metal compound, an N,N,N,N',N',N'-hexamethyl-l,6-hexane diammonium compound, a compound capable of giving silica under the reaction conditions, a compound capable of giving alumina under the reaction conditions and water, at a temperature of at least 80°C for a period sufficient to form crystals, said mixture containing said compounds in such proportions as to provide the following mole ratios of the ingredients wherein R represents an N,N,N,N',N',N'-hexamethyl-1,6-hexane diammonium ion, and as required, subjecting the resulting crystalline aluminosilicate zeolite to ion-exchanging reaction with another cation.
Claim 12
Dependent Claim
24 words
The process of claim 10 wherein said mixture contains said compounds in such proportions as to give the following mole ratios of the ingredients
Claim 13
Dependent Claim
18 words
The process of claim 10 wherein the reaction is carried out at a temperature of 100 to 200°C.
Claim 14
Dependent Claim
15 words
Use of the zeolite of claim 1 as a catalyst for transalkylation reaction of toluene.
Claim 15
Dependent Claim
16 words
Use of the zeolite of claim 1 as a catalyst for . alkylation reaction of toluene.
Claim 16
Dependent Claim
14 words
Use of the zeolite of claim 1 as a catalyst for isomerization of xylene.
Claim 17
Dependent Claim
16 words
Use of the zeolite of claim 1 as a catalyst for isomerization of ethylbenzene to xylenes.
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