Method for the separation of polymeric by-products from...

Details Method for the separation of polymeric by-products from... Method for the separation of polymeric by-products from...

2009-01-09

2009-10-20

Price, Elvis O (Department: 1621)

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

Organic compounds

Oxygen containing

C568S857000, C568S856000

Reexamination Certificate

active

07605292

ABSTRACT:
The present invention relates to a process for purifying 1,4-butynediol, which comprises compressing 1,4-butynediol to from 50 to 1500 bar, depressurizing it, waiting for phase separation to occur after depressurization and separating off the bottom phase, and a process for the hydrogenation of 1,4-butynediol to 1,4-butenediol and 1,4-butanediol using the purified 1,4-butynediol.

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