Explosive and thermic compositions or charges – Processes of making
Patent
1999-06-28
2000-08-29
Jordan, Charles T.
Explosive and thermic compositions or charges
Processes of making
149 1992, 149124, 149 46, 149 92, D03D 2300, C06B 2534, C06B 3128, C06B 4510
Patent
active
06110308&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to the field of a process for the manufacture of explosives from old explosive materials, especially from cyclonite or mixtures containing cyclonite, in which the old explosive materials are wetted with an organic solvent and transformed into a crumbly or doughy mass.
BACKGROUND OF THE INVENTION
Political development in recent years has resulted in a strong increase in munitions requiring delaboration. The propelling charge powder and explosives obtained can be disposed of by burning or detonating without further treatment. However, the resulting environmental impact through the formation of larger quantities of carbon dioxide (CO.sub.2) and nitric oxides (NO.sub.X), dust and noise or the costs for their reduction, are considerable. In order to increase the ecologically beneficial aspects and the economy of the disposal of delaborated explosives, a number of processes have been suggested whose aim is the utilization of at least some explosive material components.
In DE 41 38 733 A1 for instance it is suggested to dissolve delaboration TNT in a solvent and to add this solvent to a fuel. In this way the TNT is being utilized but ultimately still combusted with the resulting disadvantages.
Combustion is also provided for according to DE 42 23 415 C1. The explosive material is dissolved in a liquid, combustible solvent, insoluble foreign materials are removed from the solution and the cleaned, saturated solution finally fed into a combustion chamber.
A process and a device are known from DE 42 37 580 C1 which can be used to reduce the wax content of an explosive material and its grain size. The finely crystalline explosive material can be used for the manufacture of propelling charge powders or permissible explosives. The wax-enriched residue can also be utilized for the manufacture of an explosive by combining it with porous ammonium nitrate prills. The separation into individual components required with this process and the recrystallization of the explosive material however require considerable expenditure in terms of machines and time.
SUMMARY OF THE INVENTION
In contrast with this, the task of the present invention consists of improving a process in accordance with this category so that explosives can be manufactured faster and easier from old explosive materials.
In accordance with the invention this task is solved with a process of the type mentioned at the outset in that the crumbly mass is directly fed into a mixer in which it is mixed with at least an inorganic nitrate while being dried into the finished explosive through evaporation of the solvent.
The process according to the invention permits disposal of old explosive materials, especially explosive materials containing cyclonite from delaborated ammunition and old propelling charge powder in an ecologically beneficial and economical manner. Since the old explosive materials treated with an organic solvent are transformed into a crumbly or doughy mass which can be handled safely and arrives in a mixer in this form where it is mixed with an inorganic nitrate and dried into a finished explosive, no additional intermediate operations and intermediate products whatsoever are incurred. The components of the dissolved old explosive material are merely complemented to form a new explosive by adding inorganic nitrate which can especially be used also for civilian purposes. No mechanical installations for the separation and further processing of individual components of the old explosive material are required.
Acetone is preferably used as a solvent. In order to accelerate the initial dissolution and penetration with moisture of the usually fist-sized explosive material lumps into a crumbly mass, mechanical crushing of explosive material lumps as yet incompletely moistened through can be provided.
In an advantageous embodiment of the invention the inorganic nitrates predominantly contain ammonium nitrate. It is also possible to exclusively add ammonium nitrate to the crumbly mass.
The inorganic ni
REFERENCES:
patent: 4038116 (1977-07-01), Andrews et al.
patent: 4098627 (1978-07-01), Tompa et al.
patent: 4389265 (1983-06-01), Tompa et al.
patent: 5284995 (1994-02-01), Melvin
patent: 5370845 (1994-12-01), Miller et al.
patent: 5445690 (1995-08-01), Wulfman
Chemical Abstracts, vol. 125, No. 10, Sep. 2, 1996, Columbus, Ohio, U.S.; Abstract No. 118901x, R. Pan et al., "Study of the New Method for Waste Gun Propellants Reuse. Manufacturing of Powder Explosives".
Chemical Abstracts, vol. 125, No. 18, Oct. 28, 1996, Columbus, ohio, U.S.; Abstract No. 2259494r, T. Dosoudil et al.: "Remaking and re-using of Double Base Large Caliber Powders to be Used as Industrial Explosives".
Behlert Wilhelm
Ewald Gerhard
Baker Aileen J.
Jordan Charles T.
Wasagchemie Sythen GmbH
LandOfFree
Explosives produced from salvaged explosive materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Explosives produced from salvaged explosive materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Explosives produced from salvaged explosive materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1245681