US4454099A
Expired / Lapsed
US
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Sorbent bases treated with organic halides and their use to remove acidic substances from gas mixtures
Assignee: Phillips Petroleum Co
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Filing: 1982-05-06
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Granted: 1984-06-12
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Expires: 2002-05-06
Abstract
Abstract One or more sorbent bases selected from the group consisting of the alkali and alkaline earth metal oxides, hydoxides, carbonates and bicarbonates are treated with at least one organic halide of the general formula R--X n where R is an organic radical containing from 1 to about 12 carbon atoms, X is a halogen atom and n has a value from 1 to about 10 to form a sorbent suitable for removing acidic substances from gas mixtures.
Inventors
- 👤 Arlo J. Moffat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:17
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/04; B01J20/043; B01D; B01D53/00; B01D53/02; B01J20/30; B01J20/3078; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
105 words
A process of producing a sorbent material useful for the removal of one or more noxious acidic-substances from gas mixtures comprising the step of pretreating one or more sorbent bases selected from the group consisting of alkali and alkaline earth metal oxides, hydroxides, carbonates and bicarbonates with at least one organic halide of the general formula: R--X.sub.n wherein R is an organic radical containing from 1 to about 12 carbon atoms, X is a halogen atom, and n has a value of from 1 to about 10, and wherein said pretreatment is conducted under conditions sufficient to saturate said base or bases with organic halide.
Claim 2
Dependent Claim
105 words
A process of producing a sorbent material useful for the removal of one or more noxious acidic-substances from gas mixtures comprising the step of pretreating one or more sorbent bases selected from the group consisting of alkali and alkaline earth metal oxides, hydroxides, carbonates and bicarbonates with at least one organic halide of the general formula: R--X.sub.n wherein R is an organic radical containing from 1 to about 12 carbon atoms, X is a halogen atom, and n has a value of from 1 to about 10, and wherein said pretreatment is conducted under conditions sufficient to saturate said base or bases with organic halide.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein the organic halide is mixed with a carrier gas before it is contacted with the sorbent base.
Claim 4
Dependent Claim
19 words
The process of any one of claims 1 or 2 wherein the organic halide employed is an olefinic chloride.
Claim 5
Dependent Claim
12 words
The process of claim 3 wherein the organic halide is ethylene chloride.
Claim 6
Dependent Claim
12 words
The process of claim 4 wherein the sorbent base is sodium carbonate.
Claim 7
Dependent Claim
14 words
The sorbent produced by the process of any one of claims 1 or 2.
Claim 8
Dependent Claim
9 words
The sorbent produced by the process of claim 3.
Claim 9
Dependent Claim
9 words
The sorbent produced by the process of claim 4.
Claim 10
Dependent Claim
33 words
A sorbent useful for removing sulfur dioxide from gases comprising a particulate metal carbonate or bicarbonate which has been contacted with an organic halide under conditions sufficient to saturate it with organic halide.
Claim 11
Dependent Claim
33 words
A sorbent useful for removing sulfur dioxide from gases comprising a particulate metal carbonate or bicarbonate which has been contacted with an organic halide under conditions sufficient to saturate it with organic halide.
Claim 12
Dependent Claim
16 words
The sorbent material of claim 9 wherein particulate sodium bicarbonate has been contacted with ethylene chloride.
Claim 13
Dependent Claim
67 words
A process of removing one or more noxious acidic substances from a gas comprising, contacting the gas with a pretreated sorbent which sorbent is produced by treating a sorbent base selected from the group consisting of alkali and alkaline earth metal oxides, hydroxides, carbonates, and bicarbonates with a treating agent comprising one or more organic halides under conditions sufficient to saturate said sorbent base with organic halide.
Claim 14
Dependent Claim
67 words
A process of removing one or more noxious acidic substances from a gas comprising, contacting the gas with a pretreated sorbent which sorbent is produced by treating a sorbent base selected from the group consisting of alkali and alkaline earth metal oxides, hydroxides, carbonates, and bicarbonates with a treating agent comprising one or more organic halides under conditions sufficient to saturate said sorbent base with organic halide.
Claim 15
Dependent Claim
47 words
The process of claim 11 wherein the organic halide is at least one compound of the formula R--X.sub.n wherein R is an organic radical containing from 1 to about 12 carbon atoms, X is a halogen atom, and n has a value of 1 to about 10.
Claim 16
Dependent Claim
12 words
The process of claim 12 wherein the organic halide is ethylene chloride.
Claim 17
Dependent Claim
31 words
The process according to any one of claims 11, 12, or 13 wherein the contacting of the gas and the pretreated sorbent takes place at temperatures between 25° and 500° C.
Claim 18
Dependent Claim
33 words
The process of claim 1 wherein the acidic substances to be removed are selected from the group consisting of the sulfides and oxides of sulfur and nitrogen, the hydrogen halides, and mixtures thereof.
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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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |