Extraction and recovery of plasticizers from solid...

Details Extraction and recovery of plasticizers from solid... Extraction and recovery of plasticizers from solid...

C - Chemistry, Metallurgy

07

C

52/44, 260/612,

C07C 201/16 (2006.01) B01D 11/02 (2006.01) C06B 21/00 (2006.01) C07C 37/70 (2006.01) C07C 39/08 (2006.01) C07C 203/04 (2006.01) C07C 209/86 (2006.01) C07C 211/59 (2006.01)

Patent

CA 2025693

A method to extract and recover plasticizers and their stabilizers from solid propellants, explosives, and pyrotechnics (PEP source compositions) employs near critical liquid (NCL) or supercritical fluid (SCF) CO2 as the solvent. The extraction and ingredient recovery method provides an environmentally acceptable alternative to traditional open burning and destruction of PEP source compositions. CO2 solvent is nontoxic, nonflammable, noncorrosive, inexpensive, and does not generate any additional toxic or hazardous wastes. The solvent is totally inert when it is confined, pressurized, and possibly heated in direct contact with an energetic propellant or munition within a rocket motor or similar pressure vessel.

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