公开(公告)号：EP3728557A1

公开(公告)日：2020-10-28

申请号：EP18815665.7

申请日：2018-12-07

Applicant: BASF SE

Inventor： GUTH, Felicitas ,  KOLTER, Karl ,  LANGLEY, Nigel A ,  FREIDL, Kerri Gaumer ,  BRUEGGEMANN, Kristina

IPC: C12N5/00

公开(公告)号：EP3394152A1

公开(公告)日：2018-10-31

申请号：EP16808704.7

申请日：2016-12-12

Applicant: BASF SE

Inventor： SA GOMES, Pedro ,  STAAL, Bastiaan Bram Pieter ,  GUTH, Felicitas ,  LANGLEY, Nigel A

IPC: C08G65/30 ,  B01D15/18

CPC classification number: B01D15/34 ,  B01D15/1807 ,  B01D15/1821 ,  B01D15/1871 ,  B01D15/1892 ,  C08G65/08 ,  C08G65/30 ,  C08G2650/58

Abstract: A process for purification of polyether block copolymers comprising polyoxyethylene and polyoxypropylene moieties using sequential multi-column size exclusion chromatography apparatus operated as a counter current moving bed wherein a process cycle comprises the steps of.