公开(公告)号：DE10038747B4

公开(公告)日：2009-01-29

申请号：DE10038747

申请日：2000-08-09

Applicant: BASF SE

Inventor： LORENZ RUDOLF ERICH ,  BOETTCHER ARND ,  PINKOS ROLF

IPC: C07B63/00 ,  B01D3/14 ,  C07C41/42 ,  C07C43/16 ,  C07C209/84 ,  C07C211/21 ,  C07D201/16 ,  C07D223/10 ,  C07D223/12 ,  C07D233/58 ,  C07D521/00

Abstract: A process for purifying alkenyl compounds having a divalent or trivalent heteroatom in the alpha-position relative to the double bond by distillation comprises carrying out at least two distillations in which the purified alkenyl compounds are obtained from the gas phase by condensation, where the time between the first distillation after the synthesis of the alkenyl compounds and at least one further distillation is at least one day and the purified alkenyl compounds have an APHA color number of

公开(公告)号：DE502006003631D1

公开(公告)日：2009-06-10

申请号：DE502006003631

申请日：2006-08-23

Applicant: BASF SE

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

IPC: C07C29/17 ,  C07C29/76 ,  C07C31/30 ,  C07C33/035

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：AT430120T

公开(公告)日：2009-05-15

申请号：AT06792973

申请日：2006-08-23

Applicant: BASF SE

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

IPC: C07C29/17 ,  C07C29/76 ,  C07C31/30 ,  C07C33/035

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.