-
公开(公告)号:US07790804B2
公开(公告)日:2010-09-07
申请号:US11821456
申请日:2007-06-22
申请人: Michael Brockelt , Ludwig Deibele , Manfred Dietrich , Markus Hadley , Jan Thomas Leu , Guido Naberfeld , Ralf Dohrn
发明人: Michael Brockelt , Ludwig Deibele , Manfred Dietrich , Markus Hadley , Jan Thomas Leu , Guido Naberfeld , Ralf Dohrn
IPC分类号: C08L29/04
CPC分类号: C08G18/632 , C08G65/30 , C08G2290/00
摘要: The invention provides a process for the purification of polymer polyols that ensures a reduction of acrylonitrile, styrene as well as the residual amounts of optionally used chain regulator, and of occurring recombination products of the initiator when azo initiators are used, to levels of
摘要翻译: 本发明提供了一种纯化聚合物多元醇的方法,其确保丙烯腈,苯乙烯以及任选使用的链调节剂的残留量以及引发剂在使用偶氮引发剂时发生的重组产物的降低至<25 ppm的丙烯腈,<50ppm的苯乙烯,<50ppm的链调节剂和<280ppm的复合产物,通过使用填充柱进行汽提。
-
公开(公告)号:US20080033139A1
公开(公告)日:2008-02-07
申请号:US11821456
申请日:2007-06-22
申请人: Michael Brockelt , Ludwig Deibele , Manfred Dietrich , Markus Hadley , Jan Leu , Guido Naberfeld , Ralf Dohrn
发明人: Michael Brockelt , Ludwig Deibele , Manfred Dietrich , Markus Hadley , Jan Leu , Guido Naberfeld , Ralf Dohrn
CPC分类号: C08G18/632 , C08G65/30 , C08G2290/00
摘要: The invention relates to a process for the purification of polymer polyols by stripping using packed columns.
摘要翻译: 本发明涉及通过使用填充柱进行汽提来纯化聚合物多元醇的方法。
-
公开(公告)号:US5911503A
公开(公告)日:1999-06-15
申请号:US837075
申请日:1997-04-11
申请人: Christoph Braden , Ralf Dohrn
发明人: Christoph Braden , Ralf Dohrn
CPC分类号: B01F13/0818 , B01J19/18
摘要: The chemical reactor is based on a cylindrical vessel with a stirring device. The stirring device consists of a magnetic stirrer 3, 5, 11a, 11b, 12 with magnetic coils which are disposed around the outside of the cylindrical vessel 1 in the form of a star and produce a magnetic field and of a rotor 3 which is mounted in the region of the rotating field in the vessel 1 such that it can rotate about the cylinder axis. The rotor is provided with stirring blades 11a, 11b, 12 and comprises permanent magnets 5 co-operating with the rotating field.
摘要翻译: 化学反应器基于具有搅拌装置的圆柱形容器。 搅拌装置由磁力搅拌器3,5,11a,11b,12组成,其具有磁性线圈,其以星形形式围绕圆柱形容器1的外部设置并产生磁场,以及安装有转子3 在容器1中的旋转场的区域中,使得其可以围绕气缸轴线旋转。 转子设有搅拌叶片11a,11b,12,并包括与旋转场相配合的永磁体5。
-
-