Patent ID: 7947855

Claim:
A process for the selective purification of 1,4-butanediol mononitrate from a solution of 1,4-butanediol dinitrate and 1,4-butanediol in a water-immiscible organic solvent, comprising the steps of: a) extracting 1,4-butanediol mononitrate from said solution by water under conditions selected to separate 1,4-butanediol and 1,4-butanediol mononitrate from 1,4-butanediol dinitrate; and b) extracting 1,4-butanediol mononitrate from the resulting aqueous solution to obtain purified 1,4-butanediol mononitrate, by a water-immiscible organic solvent under conditions selected to separate 1,4-butanediol mononitrate from 1,4-butanediol.