公开(公告)号：US20200246761A1

公开(公告)日：2020-08-06

申请号：US15776220

申请日：2016-11-15

Applicant: BASF SE

Inventor： Wendel WOHLLEBEN ,  Karsten SEIDEL ,  Kai WERLE ,  Natalia WIDJOJO

IPC: B01D71/82 ,  B01D61/02 ,  B01D67/00 ,  B01D69/12 ,  B01D69/02 ,  B01D71/68 ,  C02F1/44

Abstract: The present invention is directed to nanofiltration (NF) composite membranes comprising at least one polymeric porous substrate layer (S) and at least one porous selfassembled supramolecular membrane layer (F); a method of preparing such composite membranes; method of separation/filtration/purification of heavy metal cations, inorganic anions, and organic small molecules by applying such composite membranes; as well as filter cartridges and filtration devices comprising said composite membranes.