Method of extracting dinitrogen pentoxide from its mixture...

Details Method of extracting dinitrogen pentoxide from its mixture... Method of extracting dinitrogen pentoxide from its mixture...

C - Chemistry, Metallurgy

01

B

C01B 21/20 (2006.01) C01B 21/46 (2006.01)

Patent

CA 2066030

2066030 9202451 PCTABS00010 Method of extracting dinitrogen pentoxide (N2O5) from its mixture in nitric acid, which consists of providing a solution of the mixture in an inert organic solvent, stripping out the N2O5 from solution in a carrier gas stream containing ozone, and subsequently condensing the N2O5 out of the gas stream by contact with further inert organic solvent. The presence of ozone suppresses the dissociation of the N2O5 transferred to the gas stream into dinitrogen tetroxide (N2O4). In a preferred embodiment the stripping and absorbing steps take place continuously in adjacent stripping and absorbing columns respectively having organic solvent recirculating through each.

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