公开(公告)号：DE3120442A1

公开(公告)日：1982-12-16

申请号：DE3120442

申请日：1981-05-22

Applicant: BASF AG

Inventor： GUENDER WOLF DR DIPL CHEM ,  DEGEN HANS-JUERGEN DR DIPL CHE

IPC: C09B69/06 ,  D06P1/41 ,  D21H21/28 ,  D21H3/80 ,  D21H1/46

Abstract: The invention relates to a process for improving the fastness to bleeding of fibre-reactive cationic dyes, which is characterised in that during the dyeing of paper pulps with fibre-reactive cationic dyes an amount of an anionic auxiliary sufficient for the neutralisation of the cationic charge is added.

公开(公告)号：DE3111615A1

公开(公告)日：1982-10-07

申请号：DE3111615

申请日：1981-03-25

Applicant: BASF AG

Inventor： DEGEN HANS-JUERGEN DR DIPL CHE ,  GUENDER WOLF DR DIPL CHEM ,  LINHART FRIEDRICH DR DIPL CHEM ,  AUHORN WERNER DIPL ING ,  FREY GUENTER DR DIPL CHEM ,  STREIT WERNER DR DIPL CHEM ,  FIKENTSCHER ROLF DR DIPL CHEM

IPC: C02F1/58 ,  B01D21/01 ,  B01D37/02 ,  C02F1/28 ,  C02F1/52 ,  C02F1/54 ,  D21C11/00

Abstract: A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.