US4962239A
Expired / Lapsed
US
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Process for preparing ethers
Assignee: ExxonMobil Oil Corp
•
Filing: 1989-12-26
•
Granted: 1990-10-09
•
Expires: 2009-12-26
Abstract
Abstract Olefin is etherified with alcohol to provide an ether or mixture of ethers employing catalyst comprising zeolite characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36+0.4, 11.03+0.2, 8.83+/-0.14, 6.18+/-0.12, 6.00+/-0.10, 4.06+/-0.07, 3.91+/-0.07 and 3.42+/-0.06 Angstroms.
Inventors
- 👤 Weldon K. Bell
- 👤 Werner O. Haag
- 👤 David O. Marler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:09
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/12; C07C41/00; C07C41/01; C07C41/05; C07C41/06; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
62 words
A process for manufacturing an ether or mixture of ethers which comprises reacting at least one olefin with at least one alcohol under etherification reaction conditions to provide at least one ether employing an etherification catalyst composition comprising an acidic synthetic porous crystalline material characterized by an X-ray diffraction pattern including values substantially as set forth in Table A of the specification.
Claim 2
Dependent Claim
62 words
A process for manufacturing an ether or mixture of ethers which comprises reacting at least one olefin with at least one alcohol under etherification reaction conditions to provide at least one ether employing an etherification catalyst composition comprising an acidic synthetic porous crystalline material characterized by an X-ray diffraction pattern including values substantially as set forth in Table A of the specification.
Claim 3
Dependent Claim
30 words
The process of claim 1 wherein the synthetic porous crystalline material is characterized by an X-ray diffraction pattern including values substantially as set forth in Table B of the specification.
Claim 4
Dependent Claim
30 words
The process of claim 1 wherein the synthetic porous crystalline material is characterized by an X-ray diffraction pattern including values substantially as set forth in Table C of the specification.
Claim 5
Dependent Claim
30 words
The process of claim 1 wherein the synthetic porous crystalline material is characterized by an X-ray diffraction pattern including values substantially as set forth in Table D of the specification.
Claim 6
Dependent Claim
40 words
The process of claim 1 wherein the synthetic porous crystalline material has a composition comprising the molar relationship X.sub.2 O.sub.3 : (n)YO.sub.2, wherein n is at least about 10, X is a trivalent element and Y is a tetravalent element.
Claim 7
Dependent Claim
35 words
The process of claim 1 wherein the synthetic porous crystalline material possesses equilibrium adsorption capacities of greater than about 4.5 wt. % for cyclohexane vapor and greater than about 10 wt. % for n-hexane vapor.
Claim 8
Dependent Claim
34 words
The process of claim 5 wherein X is selected from the group consisting of aluminum, boron, gallium and combinations thereof and Y is selected from the group consisting of silicon, germanium and combinations thereof.
Claim 9
Dependent Claim
13 words
The process of claim 5 wherein X comprises aluminum and Y comprises silicon.
Claim 10
Dependent Claim
59 words
The process of claim 1 wherein said synthetic porous crystalline material has been treated to replace original cations, at least in part, with a cation or mixture of cations selected from the group consisting of hydrogen, hydrogen precursors, rare earth metals, and metals of Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB and VIII of the Periodic Table.
Claim 11
Dependent Claim
30 words
The process of claim 1 wherein said synthetic porous crystalline material has been thermally treated at a temperature up to about 925° C. in the presence or absence of steam.
Claim 12
Dependent Claim
30 words
The process of claim 9 wherein said synthetic porous crystalline material has been thermally treated at a temperature up to about 925° C. in the presence or absence of steam.
Claim 13
Dependent Claim
14 words
The process of claim 1 wherein the olefin possesses 3 to 10 carbon atoms.
Claim 14
Dependent Claim
32 words
The process of claim 12 wherein the olefin is one or a mixture of propylene, one or more butenes, one or more pentenes, one or more hexenes or one or more heptenes.
Claim 15
Dependent Claim
12 words
The process of claim 12 wherein the olefin is a tertiary olefin.
Claim 16
Dependent Claim
14 words
The process of claim 14 wherein the tertiary olefin is an isobutene or isopentene.
Claim 17
Dependent Claim
14 words
The process of claim 1 wherein the alcohol possesses up to 8 carbon atoms.
Claim 18
Dependent Claim
14 words
The process of claim 16 wherein the alcohol is a primary or secondary alkanol.
Claim 19
Dependent Claim
24 words
The process of claim 16 wherein the alcohol is methanol, ethanol, n-propanol, isopropanol or a butanol or a mixture of any of the foregoing.
Claim 20
Dependent Claim
23 words
The process of claim 14 wherein the alcohol is methanol, ethanol, n-propanol, isopropanol or a butanol or mixture of any of the foregoing.
Claim 21
Dependent Claim
16 words
The process of claim 14 wherein the tertiary olefin is isobutene and the alcohol is methanol.
Claim 22
Dependent Claim
16 words
The process of claim 14 wherein the tertiary olefin is isobutene and the alcohol is ethanol.
Claim 23
Dependent Claim
16 words
The process of claim 14 wherein the tertiary olefin is isopentene and the alcohol is methanol.
Claim 24
Dependent Claim
16 words
The process of claim 14 wherein the tertiary olefin is isopentene and the alcohol is ethanol.
Claim 25
Dependent Claim
16 words
The process of claim 14 wherein the tertiary olefin is isobutene and the alcohol is isopropanol.
Claim 26
Dependent Claim
58 words
The process of claim 1 wherein the etherification reaction conditions include a temperature of from about 20° to about 200° C., a total system pressure of from about 1 to about 200 atmospheres, an alcohol to olefin mole ratio of from about 0.1 to about 5 and a WHSV of from 0.1 to about 200 hr -1 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-08 | 1994-04-09 | 1994-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-08 | 1998-04-09 | 1998-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-08 | 2002-04-09 | 2002-10-09 | $7700.00 | Window Closed / Lapsed |