US4018676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of explosive materials from water by chemical interaction on strongly basic ion exchange resins
Assignee: United States Department of the Navy
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Filing: 1976-01-15
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Granted: 1977-04-19
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Expires: 1996-01-15
Abstract
Abstract Hydrolyzable, non-aromatic, nitroso- or nitro-substituted explosive compos are removed from water by adsorption of the explosive on a strongly basic anion exchange resin, and by chemical interaction of the adsorbed explosive with the anion exchange resin to produce relatively non-toxic products.
Inventors
- 👤 John C. Hoffsommer
- 👤 Lloyd A. Kaplan
- 👤 Donald A. Kubose
- 👤 Donald J. Glover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:01
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; B; B01; B01D; B01D15/00; B01J; B01J41/00; B01J41/04; B01J41/05; C02F2001/422; C02F2101/00; C02F2101/003; C02F2101/30; C02F2101/38; Y; Y10; Y10S; Y10S149/00; Y10S149/124
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
72 words
A method for the removal of a hydrolyzable, non-aromatic, nitroso- or nitro-substituted explosive compound, or mixture of said compounds from an aqueous solution containing said compound or mixture thereof which comprises passing said aqueous solution through, and in contact with, a bed of the hydroxyl form of a strongly basic anion exchange resin, whereby said compound or mixture thereof is substantially all removed from the aqueous solution and decomposed into non-toxic products.
Claim 2
Independent Claim
72 words
A method for the removal of a hydrolyzable, non-aromatic, nitroso- or nitro-substituted explosive compound, or mixture of said compounds from an aqueous solution containing said compound or mixture thereof which comprises passing said aqueous solution through, and in contact with, a bed of the hydroxyl form of a strongly basic anion exchange resin, whereby said compound or mixture thereof is substantially all removed from the aqueous solution and decomposed into non-toxic products.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein the explosive material is selected from the group consisting of nitramines, nitrosamines, nitrite esters and nitrate esters.
Claim 4
Dependent Claim
33 words
The method of claim 1 wherein the explosive material is selected from the group consisting of RDX, HMX, pentaerythritol tetranitrate, nitroglycerin, ethylenedinitramine, nitrocellulose, pentaerythritol trinitrate, ethylene glycol dinitrate, glycerol monolactate trinitrate, and cyclotrimethylenetrinitrosamine.
Claim 5
Dependent Claim
19 words
The method of claim 1 wherein the explosive material is selected from the group consisting of RDX and HMX.
Claim 6
Independent Claim
56 words
A method for the removal of RDX from an aqueous solution containing it which comprises passing the aqueous solution of RDX through, and in contact with, a bed of the hydroxyl form of a strongly basic anion exchange resin, whereby the RDX is substantially all removed from the aqueous solution and is decomposed into non-toxic products.
Claim 7
Independent Claim
56 words
A method for the removal of RDX from an aqueous solution containing it which comprises passing the aqueous solution of RDX through, and in contact with, a bed of the hydroxyl form of a strongly basic anion exchange resin, whereby the RDX is substantially all removed from the aqueous solution and is decomposed into non-toxic products.
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) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |