US4157312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic composite particularly useful for the oxidation of mercaptans contained in a sour petroleum distillate
Assignee: Honeywell UOP LLC
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Filing: 1978-07-24
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Granted: 1979-06-05
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Expires: 1998-07-24
Abstract
Abstract A catalytic composite comprising a metal chelate mercaptan oxidation catalyst and a quaternary ammonium salt impregnated on a solid adsorptive support is disclosed. The quaternary ammonium salt is represented by the structural formula <IMAGE> wherein R is a hydrocarbon radical containing up to about 20 carbon atoms and selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl and aralkyl, R1 is a substantially straight-chain alkyl radical containing from about 5 to about 20 carbon atoms, R2 is selected from the group consisting of aryl, alkaryl, and aralkyl, and X is an anion selected from the group consisting of halide, nitrate, nitrite, sulfate, phosphate, acetate, citrate and tartrate. The catalytic composite is particularly adapted to the oxidation of mercaptans contained in a sour petroleum distillate.
Inventors
- 👤 Robert R. Frame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:52
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J31/02; B01J31/0234; B01J31/0235; B01J31/0239; B01J31/0254; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; C; C10; C10G; C10G27/00; C10G27/04; C10G27/06; C10G27/10; B01J21/00; B01J21/18; B01J2231/00; B01J2231/70; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/025; B01J2531/80; B01J2531/84; B01J2531/845; B01J2540/00; B01J2540/30; B01J2540/34
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
112 words
A catalytic composite comprising a metal chelate mercaptan oxidation catalyst and a quaternary ammonium salt impregnated on a solid adsorptive support, said quaternary ammonium salt being represented by the structural formula ##STR4## wherein R is a hydrocarbon radical containing up to about 20 carbon atoms and selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl and aralkyl, R 1 is a substantially straight chain alkyl radical containing from about 5 to about 20 carbon atoms, R 2 is selected from the group consisting of aryl, alkaryl and aralkyl, and X is an anion selected from the group consisting of chloride, bromide, iodide, fluoride, nitrate, nitrite, sulfate, phosphate, acetate, citrate and tartrate.
Claim 2
Dependent Claim
112 words
A catalytic composite comprising a metal chelate mercaptan oxidation catalyst and a quaternary ammonium salt impregnated on a solid adsorptive support, said quaternary ammonium salt being represented by the structural formula ##STR4## wherein R is a hydrocarbon radical containing up to about 20 carbon atoms and selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl and aralkyl, R 1 is a substantially straight chain alkyl radical containing from about 5 to about 20 carbon atoms, R 2 is selected from the group consisting of aryl, alkaryl and aralkyl, and X is an anion selected from the group consisting of chloride, bromide, iodide, fluoride, nitrate, nitrite, sulfate, phosphate, acetate, citrate and tartrate.
Claim 3
Dependent Claim
27 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium component comprises from about 1 to about 50 wt. % of said catalytic composite.
Claim 4
Dependent Claim
27 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium component comprises from about 5 to about 35 wt. % of said catalytic composite.
Claim 5
Dependent Claim
28 words
The catalytic composite of claim 1 further characterized in that R 1 is a substantially straight chain alkyl radical containing from about 12 to about 18 carbon atoms.
Claim 6
Dependent Claim
14 words
The catalytic composite of claim 1 further characterized in that R 2 is benzyl.
Claim 7
Dependent Claim
19 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium salt is a quaternary ammonium halide.
Claim 8
Dependent Claim
19 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium salt is a quaternary ammonium chloride.
Claim 9
Dependent Claim
17 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium salt is benzyldimethyldodecylammonium chloride.
Claim 10
Dependent Claim
17 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium salt is benzyldimethyltetradecylammonium chloride.
Claim 11
Dependent Claim
17 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium salt is benzyldimethylhexadecylammonium chloride.
Claim 12
Dependent Claim
17 words
The catalytic composite of claim 1 further characterized in that said quaternary ammonium salt is benzyldimethyloctadecylammonium chloride.
Claim 13
Dependent Claim
18 words
The catalytic composite of claim 1 further characterized in that said solid adsorptive support is an activated charcoal.
Claim 14
Dependent Claim
20 words
The catalytic composite of claim 1 further characterized in that said metal chelate mercaptan oxidation catalyst is a metal phthalocyanine.
Claim 15
Dependent Claim
29 words
The catalytic composite of claim 1 further characterized in that said metal chelate mercaptan oxidation catalyst comprises from about 0.1 to about 10 wt. % of said catalytic composite.
Claim 16
Dependent Claim
29 words
The catalytic composite of claim 1 further characterized in that said metal chelate mercaptan oxidation catalyst comprises from about 0.1 to about 2 wt. % of said catalytic composite.
Claim 17
Dependent Claim
20 words
The catalytic composite of claim 1 further characterized in that said metal chelate mercaptan oxidation catalyst is a cobalt phthalocyanine.
Claim 18
Dependent Claim
20 words
The catalytic composite of claim 1 further characterized in that said metal chelate mercaptan oxidation catalyst is a vanadium phthalocyanine.
Claim 19
Dependent Claim
20 words
The catalytic composite of claim 1 further characterized in that said metal chelate mercaptan oxidation catalyst is cobalt phthalocyanine monosulfonate.
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) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |