US4243828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of aromatics using a high silica zeolite
Assignee: Mobil Oil AS
•
Filing: 1978-06-05
•
Granted: 1981-01-06
•
Expires: 1998-06-05
Abstract
Abstract Conversion, e.g. dehydration of aliphatic organic oxygenates having up to about 6 carbon atoms by contact with a crystalline aluminosilicate zeolite, preferably ZSM-5, having a silica to alumina ratio substantially greater than 10, at a temperature of about 70 DEG to 1400 DEG F., depending upon the exact nature of the reactant and product.
Inventors
- 👤 George T. Kerr
- 👤 Charles J. Plank
- 👤 Edward J. Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:22
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7007; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J29/08; B01J29/085; B01J29/087; B01J29/088; B01J29/18; B01J29/40; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2869; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/86; C07C2/862; C07C2/865; C07C2/867; C07C29/00; C07C29/09; C07C29/10; C07C29/103; C07C29/106; C07C29/32; C07C29/36; C07C29/38; C07C29/44; C07C37/00; C07C37/01; C07C37/055; C07C37/11; C07C37/115; C07C37/14; C07C41/00; C07C41/01; C07C41/05; C07C41/06; C07C67/00; C07C67/04; B01J2229/00; B01J2229/10; B01J2229/16; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2601/00; C07C2601/12; C07C2601/14; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
96 words
In the process of alkylating a ring alkylatable monocyclic aromatic compound with an aliphatic organic compound reactive with said alkylatable aromatic compound through at least one unsaturated carbon atom therein to produce the alkylation reaction product thereof by contacting such at a temperature of about 70° to 1400° F. with a solid crystalline aluminosilicate zeolite acidic catalyst having a pore size sufficient to permit diffusion of said reactant aromatic and aliphatic compounds thereinto; the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina ratio greater than 10 to 1.
Claim 2
Dependent Claim
96 words
In the process of alkylating a ring alkylatable monocyclic aromatic compound with an aliphatic organic compound reactive with said alkylatable aromatic compound through at least one unsaturated carbon atom therein to produce the alkylation reaction product thereof by contacting such at a temperature of about 70° to 1400° F. with a solid crystalline aluminosilicate zeolite acidic catalyst having a pore size sufficient to permit diffusion of said reactant aromatic and aliphatic compounds thereinto; the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina ratio greater than 10 to 1.
Claim 3
Dependent Claim
17 words
The improved process claimed in claim 1 wherein said aromatic is phenol and said aliphatic is 1-decene.
Claim 4
Dependent Claim
12 words
The improved process claimed in claim 1 wherein said aliphatic is trioxane.
Claim 5
Dependent Claim
13 words
The improved process claimed in claim 1 wherein said aliphatic is hexafluoro acetone.
Claim 6
Dependent Claim
12 words
The improved process claimed in claim 1 wherein said aliphatic is acetone.
Claim 7
Dependent Claim
16 words
The process of claim 1 wherein said chelated zeolite Y is in the rare earth form.
Claim 8
Dependent Claim
66 words
In a process of alkylating benzene by contacting the same, in the presence of a crystalline aluminosilicate zeolite catalyst, with an aliphatic organic compound reactive therewith through at least one unsaturated carbon atom in said compound to produce the alkylation reaction product thereof, the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina molar ratio of greater than 10.
Claim 9
Dependent Claim
66 words
In a process of alkylating benzene by contacting the same, in the presence of a crystalline aluminosilicate zeolite catalyst, with an aliphatic organic compound reactive therewith through at least one unsaturated carbon atom in said compound to produce the alkylation reaction product thereof, the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina molar ratio of greater than 10.
Claim 10
Dependent Claim
11 words
The process of claim 7 wherein said aliphatic compound is 1-decene.
Claim 11
Dependent Claim
16 words
The process of claim 7 wherein said chelated zeolite Y is in the rare earth form.
Claim 12
Dependent Claim
44 words
In a process for alkylating benzene by contacting the same, in the presence of a crystalline aluminosilicate zeolite catalyst, with trioxane, the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina molar ratio of greater than 10.
Claim 13
Dependent Claim
44 words
In a process for alkylating benzene by contacting the same, in the presence of a crystalline aluminosilicate zeolite catalyst, with trioxane, the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina molar ratio of greater than 10.
Claim 14
Dependent Claim
44 words
In a process for alkylating benzene by contacting the same, in the presence of a crystalline aluminosilicate zeolite catalyst, with formaldehyde, the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina molar ratio of greater than 10.
Claim 15
Dependent Claim
44 words
In a process for alkylating benzene by contacting the same, in the presence of a crystalline aluminosilicate zeolite catalyst, with formaldehyde, the improvement which comprises utilizing as said catalyst a chelated zeolite Y having a silica to alumina molar ratio of greater than 10.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |