Patent US4048097A successfully refreshed from Google Patents.
US4048097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonated metal phthalocyanine catalyst
Assignee: Honeywell UOP LLC
•
Filing: 1976-02-19
•
Granted: 1977-09-13
•
Expires: 1996-02-19
Abstract
Abstract A new metal phthalocyanine catalyst is prepared by reacting a 4-sulfophthalic compound, a metal salt, an ammonium donor compound and water at reaction conditions which include heating to 255° to 325° C at a pressure of 1 to 100 atmospheres for 1/2 to 10 hours. The catalyst is used to oxidize mercaptans.
Inventors
- 👤 Walter M. Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:32
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/06; C09B47/065; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; C09B47/045; 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: 7
Claim 1
Independent Claim
45 words
A metal phthalocyanine composition of matter prepared by reacting a 4-sulfophthalic acid or salt thereof, a Group VIII metal salt, an ammonium donor compound decomposable to ammonia or ammonium moiety, and water, at a temperature of 255° to 325° C. for 1/2 to 10 hours.
Claim 2
Dependent Claim
45 words
A metal phthalocyanine composition of matter prepared by reacting a 4-sulfophthalic acid or salt thereof, a Group VIII metal salt, an ammonium donor compound decomposable to ammonia or ammonium moiety, and water, at a temperature of 255° to 325° C. for 1/2 to 10 hours.
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein the 4-sulfophthalic compound is triammonium-4-sulfophthalate, the metal salt is cobalt sulfate heptahydrate and the ammonium donor compound is urea.
Claim 4
Dependent Claim
24 words
The composition of claim 1 wherein the 4-sulfophthalic compound is disodium-4-sulfophthalate, the metal salt is rhodium nitrate and the ammonium donor compound is urea.
Claim 5
Independent Claim
51 words
A method of catalyst manufacture of a metal phthalocyanine composition of matter which comprises reacting a 4-sulfophthalic acid or salt thereof, a Group VIII metal salt, an ammonium donor compound decomposable to ammonia or ammonium moiety and water at a temperature of 255° to 325° C. for 1/2 to 10 hours.
Claim 6
Independent Claim
51 words
A method of catalyst manufacture of a metal phthalocyanine composition of matter which comprises reacting a 4-sulfophthalic acid or salt thereof, a Group VIII metal salt, an ammonium donor compound decomposable to ammonia or ammonium moiety and water at a temperature of 255° to 325° C. for 1/2 to 10 hours.
Claim 7
Dependent Claim
25 words
The method of claim 4 wherein the 4-sulfophthalic compound is triammonium-4-sulfophthalate, the metal salt is cobalt sulfate heptahydrate and the ammonium donor compound is urea.
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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |