US4049572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and method of manufacture and use thereof
Assignee: Honeywell UOP LLC
•
Filing: 1976-02-24
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Granted: 1977-09-20
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Expires: 1996-02-24
Abstract
Abstract A catalyst comprising a metal phthalocyanine composition of matter is prepared by reacting a 4-sulfophthalic acid with a metal salt, an ammonium donor and a phthalic anhydride or derivative thereof at 250 to 325 C for one-half to ten hours.
Inventors
- 👤 Walter M. Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:16
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; C09; C09B; C09B47/00; C09B47/04; C09B47/045; C09B47/06; C09B47/061; C09B47/065; C09B47/08; C09B47/24; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/025; B01J2531/50; B01J2531/56; B01J2531/70; B01J2531/72; B01J2531/80; B01J2531/82; B01J2531/822; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
48 words
A method of manufacturing a catalyst which comprises reacting a 4-sulfophthalic acid compound with a metal salt, an ammonium donor, and a compound selected from the group of benzene-1,2-dicarboxylic acid and derivatives thereof, in aqueous solution by heating to 250° to 325° C. for one-half to 10 hours.
Claim 2
Independent Claim
48 words
A method of manufacturing a catalyst which comprises reacting a 4-sulfophthalic acid compound with a metal salt, an ammonium donor, and a compound selected from the group of benzene-1,2-dicarboxylic acid and derivatives thereof, in aqueous solution by heating to 250° to 325° C. for one-half to 10 hours.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein the solution is heated at 250° to 300° C. for one to six hours.
Claim 4
Dependent Claim
33 words
The method of claim 1 wherein the solution is heated at 165° to 275° C. for one to four hours and then heated to 250° to 325° C. for one to four hours.
Claim 5
Dependent Claim
39 words
The method of claim 1 wherein the solution is heated at 165° to 210° C. for one to four hours, 200° to 250° C. for one to four hours, and 250° to 325° C. for one to four hours.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein the reaction is conducted at a pressure sufficient to maintain liquid phase.
Claim 7
Dependent Claim
32 words
The method of claim 1 wherein the metal salt is selected from the group of a cobalt metal salt, a vanadyl metal salt, a rhodium metal salt, and a manganese metal salt.
Claim 8
Dependent Claim
22 words
The method of claim 1 wherein the ammonium donor is selected from the group consisting of urea, alum, hydrazine, biuret, and guanidine.
Claim 9
Dependent Claim
15 words
The method of claim 1 wherein the reaction conditions include the presence of a promoter.
Claim 10
Dependent Claim
28 words
The method of claim 1 wherein the benzene-1,2-dicarboxylic acid or its derivative is selected from the group of phthalic anhydride, phthalic acid, phthalimide, and o-dicyanobenzene and phthalamic acid.
Claim 11
Dependent Claim
23 words
The method of claim 1 wherein the 4-sulfophthalic acid compound is selected from the group of 4-sulfophthalic acid, and salts of said acid.
Claim 12
Dependent Claim
41 words
The method of claim 1 wherein the 4-sulfophthalic acid compound is an acid salt of said acid and contains a cation selected from the group of lithium, potassium, rubidium, cesium, barium, strontium, calcium, magnesium, beryllium, titanium, scandium, zirconium, manganese and rhenium.
Claim 13
Dependent Claim
22 words
The method of claim 1 wherein 4-sulfophthalic acid and phthalic anhdyride are reacted in a weight ratio of 1/2:1 to 4:1, respectively.
Claim 14
Dependent Claim
23 words
The method of claim 12 wherein the 4-sulfophthalic acid and phthalic anhydride are reacted in a weight ratio of 1:1 to 2:1, respectively.
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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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |