Patent US4378305A successfully refreshed from Google Patents.
US4378305A
Expired / Lapsed
US
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Catalytic composite particularly useful for the oxidation of mercaptans and the removal of gums contained in a sour petroleum distillate
Assignee: Honeywell UOP LLC
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Filing: 1981-05-20
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Granted: 1983-03-29
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Expires: 2001-05-20
Abstract
Abstract A catalytic composite comprising a metal chelate mercaptan oxidation catalyst impregnated on a basic anion exchange resin is disclosed. The catalytic composite is particularly useful to effect the oxidation of mercaptans contained in a sour petroleum distillate.
Inventors
- 👤 David H. J. Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/165; B01J31/02; B01J31/06; B01J31/08; B01J31/10; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; C; C10; C10G; C10G27/00; C10G27/04; C10G27/10; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/80; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
70 words
A regeneratable, gum resistant catalytic composite for sweetening a sour petroleum distillate, prepared by the method comprising: (a) washing a basic anion exchange resin with an alcohol, a ketone, or an aldehyde; (b) contacting said anion exchange resin with a metal chelate mercaptan oxidation catalyst and with an alcohol, water, or a mixture thereof, to produce a catalyst-impregnated basic anion exchange resin; and (c) drying said catalyst-impregnated anion exchange resin.
Claim 2
Dependent Claim
70 words
A regeneratable, gum resistant catalytic composite for sweetening a sour petroleum distillate, prepared by the method comprising: (a) washing a basic anion exchange resin with an alcohol, a ketone, or an aldehyde; (b) contacting said anion exchange resin with a metal chelate mercaptan oxidation catalyst and with an alcohol, water, or a mixture thereof, to produce a catalyst-impregnated basic anion exchange resin; and (c) drying said catalyst-impregnated anion exchange resin.
Claim 3
Dependent Claim
17 words
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin.
Claim 4
Dependent Claim
25 words
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene divinylbenzene cross-linked copolymer matrix.
Claim 5
Dependent Claim
30 words
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene divinylbenzene cross-linked copolymer matrix and primary amine functional groups.
Claim 6
Dependent Claim
30 words
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene divinylbenzene cross-linked copolymer matrix and secondary amine functional groups.
Claim 7
Dependent Claim
30 words
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous cross-linked styrene divinylbenzene copolymer matrix having tertiary amine functional groups.
Claim 8
Dependent Claim
30 words
The catalytic composite of claim 1 wherein said anion exchange resin is an amine anion exchange resin comprising a porous styrene divinylbenzene cross-linked copolymer matrix and quaternary amine functional groups.
Claim 9
Dependent Claim
40 words
The catalytic composite of claim 1 wherein said contacting of step (b) is conducted with an aqueous solution comprising a metal chelate mercaptan oxidation catalyst and between about 2 wt. % and about 10 wt. % of a strong base.
Claim 10
Dependent Claim
20 words
The catalytic composite of claim 1 wherein said metal chelate mercaptan oxidation catalyst is a metal phthalocyanine mercaptan oxidation catalyst.
Claim 11
Dependent Claim
26 words
The catalytic composite of claim 9 wherein said metal phthalocyanine mercaptan oxidation catalyst comprises from about 0.1 to about 10 wt. % of said catalytic composite.
Claim 12
Dependent Claim
26 words
The catalytic composite of claim 9 wherein said metal phthalocyanine mercaptan oxidation catalyst comprises from about 0.1 to about 2 wt. % of said catalytic composite.
Claim 13
Dependent Claim
16 words
The catalytic composite of claim 9 wherein said metal phthalocyanine mercaptan oxidation catalyst is cobalt phthalocyanine.
Claim 14
Dependent Claim
17 words
The catalytic composite of claim 9 wherein said metal phthalocyanine mercaptan oxidation catalyst is cobalt phthalocyanine monosulfonate.
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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) | 1986-03-28 | 1986-09-27 | 1987-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-28 | 1990-09-27 | 1991-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-28 | 1994-09-27 | 1995-03-29 | $7700.00 | Window Closed / Lapsed |