US2021253492A1PendingUtilityA1

Systems for producing demn eutectic

Assignee: NORTHROP GRUMMAN SYSTEMS CORPPriority: Mar 14, 2013Filed: Nov 2, 2020Published: Aug 19, 2021
Est. expiryMar 14, 2033(~6.6 yrs left)· nominal 20-yr term from priority
C06B 21/005C06B 25/34C06B 21/00C06B 25/00
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Claims

Abstract

A method of producing DEMN eutectic comprises reacting a reactant mixture comprising ethylenediamine and diethylenetriamine with aqueous nitric acid to form a reaction mixture comprising diethylentriamine trinitrate and ethylenediamine dinitrate. The reaction mixture is combined with methylnitroguanidine and nitroguanidine to form an aqueous slurry. Water is removed from the aqueous slurry. A method of producing an energetic composition, and a system for producing DEMN eutectic are also described.

Claims

exact text as granted — not AI-modified
1 . A system for producing DEMN eutectic, comprising:
 a single reaction vessel configured to react a reactant mixture comprising diethylenetriamine and ethylenediamine and aqueous nitric acid at a temperature of from about 10° C. to about 90° C. to produce a reaction mixture comprising ethylenediamine dinitrate and diethylentriamine trinitrate, to combine the reaction mixture with methylnitroguanidine and nitroguanidine to form an aqueous slurry, and to heat the aqueous slurry at a temperature of from about 50° C. to about 150° C.   
     
     
         2 . (canceled) 
     
     
         3 . The system of  claim 1 , wherein the single reaction vessel is a glass-lined reactor. 
     
     
         4 . The system of  claim 3 , further comprising:
 at least one source of diethylenetriamine and ethylenediamine in fluid communication with the glass-lined reactor;   at least one source of aqueous nitric acid in fluid communication with the glass-lined reactor; and   at least one source of methylnitroguanidine and nitroguanidine in fluid communication with the glass-lined reactor.   
     
     
         5 . The system of  claim 3 , wherein the glass-lined reactor comprises:
 a first inlet configured and positioned to receive a reactant feed stream comprising diethylenetriamine and ethylenediamine;   a second inlet configured and positioned to receive an aqueous nitric acid stream comprising aqueous nitric acid;   a third inlet configured and positioned to receive another reactant feed stream comprising methylnitroguanidine and nitroguanidine;   a first outlet configured and positioned to remove molten DEMN eutectic from the glass-lined reactor as a molten DEMN eutectic stream; and   a second outlet configured to remove produced water from the from the glass-lined reactor as a waste water stream.   
     
     
         6 . The system of  claim 3 , further comprising:
 at least one cooling device configured and positioned to maintain a temperature within the glass-lined reactor at from about 35° C. to about 55° C. during the formation of the reaction mixture; and   at least one heating device configured and positioned to heat the aqueous slurry to another temperature within a range of from about 90° C. to about 110° C. within the glass-lined reactor.   
     
     
         7 . The system of  claim 3 , further comprising one or more of:
 at least one air sparge device configured and positioned to deliver air into the aqueous slurry within the glass-lined reactor; and   at least one vacuum device configured and positioned to apply negative pressure to the aqueous slurry within the glass-lined reactor.   
     
     
         8 . A DEMN eutectic production system, comprising:
 a source of diethylenetriamine and ethylenediamine;   a source of aqueous nitric acid;   a source of source of methylnitroguanidine and nitroguanidine; and   a glass-lined reactor, comprising:
 a first inlet configured and positioned to receive the diethylenetriamine and the ethylenediamine from the source of diethylenetriamine and ethylenediamine; 
 a second inlet configured and positioned to receive the aqueous nitric acid from the source of aqueous nitric acid; 
 a third inlet configured and positioned to receive the methylnitroguanidine and nitroguanidine from the source of source of methylnitroguanidine and nitroguanidine; 
 a first outlet configured and positioned to remove molten DEMN eutectic produced within the glass-lined reactor; and 
 a second outlet configured to remove steam produced within the glass-lined reactor. 
   
     
     
         9 . The DEMN eutectic production system of  claim 8 , further comprising a cooling device operatively associated with the glass-lined reactor and configured to maintain an operating temperature of the glass-lined reactor within a range of from about 10° C. to about 90° C. to produce a reaction mixture comprising ethylenediamine dinitrate and diethylentriamine trinitrate from the diethylenetriamine, the ethylenediamine, and the aqueous nitric acid received by the glass lined reactor. 
     
     
         10 . The DEMN eutectic production system of  claim 9 , further comprising a heating device operatively associated with the glass-lined reactor and configured to heat a combination of the reaction mixture and each of the methylnitroguanidine and the nitroguanidine received by the glass lined reactor to temperature within a range of from about 50° C. to about 150° C. 
     
     
         11 . The DEMN eutectic production system of  claim 10 , further comprising a negative pressure apparatus operatively associated with the glass-lined reactor and configured to apply negative pressure to an aqueous slurry heated to the temperature and comprising water, the ethylenediamine dinitrate, the diethylentriamine trinitrate, the methylnitroguanidine, and the nitroguanidine heated to the temperature to remove the water from the aqueous slurry in situ and produce the molten DEMN eutectic. 
     
     
         12 . The DEMN eutectic production system of  claim 10 , further comprising an air sparge apparatus operatively associated with the glass-lined reactor and configured to sparge an aqueous slurry heated to the temperature and comprising water, the ethylenediamine dinitrate, the diethylentriamine trinitrate, the methylnitroguanidine, and the nitroguanidine with air to remove the water from the aqueous slurry in situ and produce the molten DEMN eutectic. 
     
     
         13 . The DEMN eutectic production system of  claim 8 , further comprising a mold structure configured and positioned to receive the molten DEMN eutectic exiting the first outlet of the glass-lined reactor and to solidify the molten DEMN eutectic into DEMN eutectic. 
     
     
         14 . The DEMN eutectic production system of  claim 13 , wherein the mold structure comprises polyethylene. 
     
     
         15 . A system for DEMN eutectic production, comprising:
 a source of diethylenetriamine and ethylenediamine;   a source of aqueous nitric acid;   a source of methylnitroguanidine and nitroguanidine; and   a glass-lined reactor in fluid communication with each of the source of diethylenetriamine and ethylenediamine, the source of aqueous nitric acid, and the source of methylnitroguanidine and nitroguanidine, the glass-lined reactor configured to:
 receive and react the diethylenetriamine and the ethylenediamine in the presence of the aqueous nitric acid and at a first temperature within a range of from about 10° C. to about 90° C. to produce a reaction mixture comprising ethylenediamine dinitrate and diethylentriamine trinitrate, 
 combine the reaction mixture with the methylnitroguanidine and the nitroguanidine to form an aqueous slurry, and 
 heat and remove water from the aqueous slurry at a second temperature within a range of from about 50° C. to about 150° C. to form molten DEMN eutectic. 
   
     
     
         16 . The system of  claim 15 , wherein the glass-lined reactor comprises:
 a inlet in fluid communication with the source of diethylenetriamine and ethylenediamine   an additional inlet in fluid communication with the source of aqueous nitric acid;   a further inlet in fluid communication with the source of methylnitroguanidine and nitroguanidine;   an outlet configured to facilitate removal of the molten DEMN eutectic; and   an additional outlet configured to facilitate removal of the water removed from the aqueous slurry separate from the molten DEMN eutectic.   
     
     
         17 . The system of  claim 15 , further comprising a water-cooled device operatively associated with the glass-lined reactor and configured to facilitate the first temperature. 
     
     
         18 . The system of  claim 15 , further comprising a heating apparatus operatively associated with the glass-lined reactor and configured to facilitate the second temperature. 
     
     
         19 . The system of  claim 15 , further comprising a polyethylene vessel configured and positioned to receive the molten DEMN eutectic from the glass-lined reactor and to facilitate the solidification of the molten DEMN eutectic. 
     
     
         20 . The system of  claim 15 , further comprising an air sparge device operatively associated with the glass-lined reactor.

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