Patent US4293317A successfully refreshed from Google Patents.
US4293317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fission product adsorbent impregnated with quinuclidene
Assignee: Individual
•
Filing: 1980-01-17
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Granted: 1981-10-06
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Expires: 2000-01-17
Abstract
Abstract Disclosed is a method for removing an alkyl halide from gas stream contaminated therewith which comprises contacting said gas stream with a particulate adsorbent impregnated with quinuclidene. The alkyl halide usually is an alkyl iodide comprising methyl iodide, optionally radioactive, and the preferred particulate adsorbent is activated carbon.
Inventors
- 👤 Julius L. Kovach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:05
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; B01D; B01D53/00; B01D53/02; B01J20/28; B01J20/28002; B01J20/28004; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3248; B01J20/3255; B01J20/3287; G; G21; G21C; G21C19/00; G21C19/28; G21C19/30; G21C19/303; G21F; G21F9/00; G21F9/02; B01J2220/00; B01J2220/50; B01J2220/56; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/901
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
25 words
A method for removing an alkyl halide from a gas stream contaminated therewith comprising contacting said gas stream with a particulate adsorbent impregnated with quinuclidene.
Claim 2
Independent Claim
25 words
A method for removing an alkyl halide from a gas stream contaminated therewith comprising contacting said gas stream with a particulate adsorbent impregnated with quinuclidene.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said alkyl halide is an alkyl iodide.
Claim 4
Dependent Claim
11 words
The method of claim 2 wherein said alkyl halide is radioactive.
Claim 5
Dependent Claim
19 words
The method of claim 2 or 3 wherein said alkyl iodide is a C 1 -C 6 alkyl iodide.
Claim 6
Dependent Claim
12 words
The method of claim 4 wherein said alkyl iodide comprises methyl iodide.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein said particulate adsorbent is activated carbon.
Claim 8
Dependent Claim
20 words
The method of claim 6 wherein said particulate adsorbent ranges in particle size from about 0.2 to about 4 millimeters.
Claim 9
Dependent Claim
17 words
The method of claim 1 or 6 wherein said particulated adsorbent is provided as a bed thereof.
Claim 10
Dependent Claim
24 words
The method of claim 1 or 6 wherein said particulate adsorbent is impregnated with between about 0.1% and 5% by weight of said quinuclidene.
Claim 11
Dependent Claim
24 words
The method of claim 4 wherein said particulate adsorbent is activated carbon impregnated with between about 0.1% and 5% by weight of said quinuclidene.
Claim 12
Dependent Claim
31 words
A particulate adsorbent effective for selectively removing substantially all of an alkyl halide from a gas stream contaminated therewith which comprises particulate adsorbent in finely-divided form which is impregnated with quinuclidene.
Claim 13
Dependent Claim
31 words
A particulate adsorbent effective for selectively removing substantially all of an alkyl halide from a gas stream contaminated therewith which comprises particulate adsorbent in finely-divided form which is impregnated with quinuclidene.
Claim 14
Dependent Claim
11 words
The adsorbent of claim 11 wherein said adsorbent is activated carbon.
Claim 15
Dependent Claim
21 words
The adsorbent of claim 11 or 12 wherein said adsorbent ranges in particle size from about 0.2 to about 4 millimeters.
Claim 16
Dependent Claim
23 words
The adsorbent of claim 11 or 12 wherein said adsorbent is impregnted with between about 0.1% and 5% by weight of said quinuclidene.
Claim 17
Dependent Claim
17 words
The adsorbent of claim 14 wherein said alkyl halide comprises methyl iodide which optionally may be radioactive.
Claim 18
Dependent Claim
10 words
A bed of the adsorbent of claim 11 or 12.
Claim 19
Dependent Claim
8 words
A bed of the adsorbent of claim 14.
References Cited (Backward Citations)
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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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |