Process for the purification of 1,4-butanediol mononitrate

Details Process for the purification of 1,4-butanediol mononitrate Process for the purification of 1,4-butanediol mononitrate

2011-05-24

2011-05-24

Witherspoon, Sikarl A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S852000, C568S868000, C558S483000, C558S484000

Reexamination Certificate

active

07947855

ABSTRACT:
A process for the purification of 1,4-butanediol mononitrate from 1,4-butanediol dinitrate and 1,4-butanediol, by selective extraction with solvents is herein disclosed.

REFERENCES:
patent: WO 98/25918 (1998-06-01), None
patent: WO 01/10814 (2001-02-01), None
International Search Report dated Mar. 16, 2004, in PCT application.
K. Treves et al., “Henry's law constants of some beta-, gamma- and delta-hydroxy alkyl nitrates of atmospheric interest”, Environ. Sci. Technol., vol. 34, 2000, pp. 1197-1203, XP002271697, experimental section; method 1 p. 1200, left-hand column, paragraph 1, table 1.
Kirk-Othmer, “Extraction (liquid-liquid)”, Encyclopedia of Chemical Technology, vol. 10, 1993, pp. 136-139, XP002271719, the whole document.

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