公开(公告)号：DE102005042185A1

公开(公告)日：2007-03-08

申请号：DE102005042185

申请日：2005-09-06

Applicant: BASF AG

Inventor： LORENZ RUDOLF ERICH ,  PINKOS ROLF ,  STEINIGER MICHAEL ,  SCHAEFER GERD

IPC: C07C29/76 ,  C07C29/17 ,  C07C31/20 ,  C07C33/035 ,  C07C33/046

Abstract: The present invention relates to processes for making 1,4-butanediol, 1,4-butenediol, or a mixture thereof by processing 1,4-butynediol in a dynamic mixing apparatus in an inert gas atmosphere at from 25 to 150° C. at a shear rate in the radial gap between rotor and stator of the mixing apparatus of more than 100 000 sec-1; phase separating the processed 1,4-butynediol at a temperature of from 25 to 150° C.; removing a bottom phase to obtain purified 1,4-butynediol; and reacting the purified 1,4-butynediol with hydrogen in the presence of a catalyst.

公开(公告)号：DE102005042184A1

公开(公告)日：2007-03-08

申请号：DE102005042184

申请日：2005-09-06

Applicant: BASF AG

Inventor： LORENZ RUDOLF ERICH ,  PINKOS ROLF ,  STEINIGER MICHAEL ,  SCHAEFER GERD ,  DANNER THOMAS

IPC: C07C29/76 ,  C07C29/17 ,  C07C31/20 ,  C07C33/035 ,  C07C33/046

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.