U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Process for disposal of waste propellants and explosives

Patent 5516971 Issued on May 14, 1996. Estimated Expiration Date: Icon_subject May 5, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2362066

3778320

3848548

Process for the leaching of AP from propellant
Patent #: 4198209
Issued on: 04/15/1980
Inventor: Frosch ,   et al.

Destruction of waste explosive by hydrogenolysis
Patent #: 4661179
Issued on: 04/28/1987
Inventor: Hunter ,   et al.

Electrochemical desensitization process Patent #: 5250161
Issued on: 10/05/1993
Inventor: Chin, et al.

Inventor

Assignee

Application

No. 238292 filed on 05/05/1994

US Classes:

588/318, Detoxification by using acid or alkaline reagents (EPO/JPO)149/124, METHODS FOR RECLAIMING OR DISPOSING OF ONE OR MORE MATERIALS IN A COMPOSITION588/320, By oxidation; by combustion (EPO/JPO)588/403, Explosives, propellants or pyrotechnics, e.g., rocket fuel, napalm (EPO/JPO)588/408, Containing nitrogen or phosphorus (EPO/JPO)588/409Containing oxygen, sulfur, selenium or tellurium, i.e., chalcogen (EPO/JPO)

Examiners

Primary: Mai, Ngoclan

Attorney, Agent or Firm

International Class

C06B 021/00

Abstract

An improved non-pyrolytic disposal process for nitrocellulose-based explosives and rocket propellants is disclosed. Explosive and propellant particles are digested by contact of the particles with an aqueous solution containing from about 5 to 20% by weight caustic (NaOH) maintained at a temperature of about 50° C. to 100° C. and under conditions of agitation until digestion is essentially complete. The resulting by product contains a mixture of depleted caustic and a water soluble sludge which can be disposed of or further processed. The process minimizes environmental concerns brought about by the open burning of high energy materials.

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