Electrochemical desensitization process
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0904813
(1992-06-26)
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발명자
/ 주소 |
- Chin George (Citrus Heights CA) Smith Rex M. (Sacramento CA) Wong Michael K. (Sacramento CA) Wagner Patrick J. (Citrus Heights CA)
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출원인 / 주소 |
- Aerojet-General Corporation (Rancho Cordova CA 02)
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인용정보 |
피인용 횟수 :
9 인용 특허 :
0 |
초록
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Potentially hazardous compositions containing solid combustible fuels, oxidants, nitro-containing, nitramine-containing or nitrato-containing compounds and, in many cases, binders are desensitized by electrolysis at low current and over an extended period of time. According to one disclosed method,
Potentially hazardous compositions containing solid combustible fuels, oxidants, nitro-containing, nitramine-containing or nitrato-containing compounds and, in many cases, binders are desensitized by electrolysis at low current and over an extended period of time. According to one disclosed method, compositions containing binders are first oxidized at the anode to cause decomposition and swelling of the binder, followed by further oxidation of the remaining components of the composition or switching of the polarity to cause reduction, as needed. According to another disclosed method, the composition is retained in a reaction vessel separate from the electrolysis cell, and the aqueous leachant from the composition is circulated in two portions through the two halves of the electrolysis cell to form strong oxidizing and reducing reagents, respectively, which are then circulated in succession through the reaction vessel to decompose the composition. In either case, the resulting composition has a lowered sensitivity to initiation by such external influences as inadvertent impact or inadvertent electrostatic discharge.
대표청구항
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A process for treating a composition containing one or more energetic compounds bound together by a polymeric binder, said energetic compounds including at least one member selected from the group consisting of nitro-group-bearing, nitramine-group-bearing and nitrato-group-bearing compounds, to subs
A process for treating a composition containing one or more energetic compounds bound together by a polymeric binder, said energetic compounds including at least one member selected from the group consisting of nitro-group-bearing, nitramine-group-bearing and nitrato-group-bearing compounds, to substantially reduce the sensitivity of said composition to inadvertent initiation, said process comprising: (a) placing said composition in contact with a first electrode in an electrolytic cell which further contains a liquid medium connecting said first electrode and a second electrode in said cell; (b) with said first electrode energized as an anode, passing an electric current between said first and second electrodes to at least partially oxidize said binder; and (c) subsequent to step (b), energizing said first electrode as a cathode and passing an electric current between said first and second electrodes to reduce at least a portion of said energetic compounds. A process for treating a composition containing one or more energetic compounds selected from the group consisting of nitro-group-bearing, nitramine-group-bearing and nitrato-group-bearing compounds, bound together by a polymeric binder, to substantially reduce the sensitivity of said composition to inadvertent initiation, said process comprising: (a) contacting said composition with an aqueous liquid to extract water-soluble components therefrom, thereby forming an aqueous solution of water-soluble components of said composition, and dividing said aqueous solution into first and second portions; (b) combining components of said composition which were not extracted in step (a) with an aqueous liquid to form a slurry; (c) circulating said first portion of said aqueous solution through an anodic half-cell, and said second portion through a cathodic half-cell separated from said anodic half-cell by an ion-permeable barrier, while passing an electric current across said anodic and cathodic half-cells through said ion-permeable barrier, to generate an acidic solution of oxidizing agents in said anodic half-cell and a basic solution of reducing agents in said cathodic half-cell; (d) contacting said slurry with said acidic solution in a reactor vessel to cause oxidative decomposition of solid binder materials in said slurry, thereby exposing energetic compounds retained by said binder for chemical attack; and (e) once said energetic compounds are exposed, contacting said slurry with said basic solution to cause reductive decomposition of said energetic components thus exposed.
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Field, Bruce F., Tubular electrolysis cell and corresponding method.
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