公开(公告)号：DE1569676B1

公开(公告)日：1970-05-14

申请号：DEB0094526

申请日：1967-09-16

Applicant: BASF AG

Inventor： ROTERMUND GERHARD DR ,  PLATZ ROLF DR ,  DECKER MARTIN DR ,  STECHL HANNS-HELGE DR

IPC: C09B47/04 ,  C09B47/06 ,  C09B47/067

公开(公告)号：DE59002225D1

公开(公告)日：1993-09-16

申请号：DE59002225

申请日：1990-01-04

Applicant: BASF AG

Inventor： SCHUSTER LUDWIG DR ,  STECHL HANNS-HELGE DR ,  WOLFF DIETRICH DR

IPC: C02F1/78 ,  C02F9/00

公开(公告)号：DE1643623A1

公开(公告)日：1971-03-25

申请号：DE1643623

申请日：1967-07-04

Applicant: BASF AG

Inventor： PLATZ ROLF DR ,  STECHL HANNS-HELGE DR

IPC: C07C45/28

公开(公告)号：DE2230735A1

公开(公告)日：1974-01-03

申请号：DE2230735

申请日：1972-06-23

Applicant: BASF AG

Inventor： GRAEFJE HEINZ DR ,  STECHL HANNS-HELGE DR

IPC: C07D295/023 ,  C07D295/13 ,  C07D51/70

Abstract: Ethanolamine and NH3 are reacted in a known manner, in presence of H2 and a hydrogenation catalyst at elevated temp. and press. and the ethylene diamine main prod., unreacted starting materials and opt other prods are distilled off; the distn. residue is then reacted with NH3 and H2 in presence of a hydrogenation catalyst and opt. water to give piperazine and/or N-(2-aminoethyl) piperazine (I). Valuable prods. are thus obtd. from the previously useless distn. residue.

公开(公告)号：CH510087A

公开(公告)日：1971-07-15

申请号：CH1364768

申请日：1968-09-12

Applicant: BASF AG

Inventor： ROTERMUND GERHARD DR ,  PLATZ ROLF DR ,  DECKER MARTIN DR ,  STECHL HANNS-HELGE DR

IPC: C09B47/04 ,  C09B47/06 ,  C09B47/067

公开(公告)号：DE3900932A1

公开(公告)日：1990-07-26

申请号：DE3900932

申请日：1989-01-14

Applicant: BASF AG

Inventor： SCHUSTER LUDWIG DR ,  STECHL HANNS-HELGE DR ,  WOLFF DIETRICH DR

IPC: C02F1/78 ,  C02F9/00

公开(公告)号：DE3302970A1

公开(公告)日：1984-08-02

申请号：DE3302970

申请日：1983-01-29

Applicant: BASF AG

Inventor： NOHE HEINZ DR ,  LOEFFLER ALBERT ,  STECHL HANNS-HELGE DR ,  LIEBOLD GERT DR ,  PFITZNER KLAUS DR

IPC: C07F5/04 ,  C10M107/52 ,  C10M111/04 ,  C10M3/48

公开(公告)号：DE2038406A1

公开(公告)日：1972-02-10

申请号：DE2038406

申请日：1970-08-01

Applicant: BASF AG

Inventor： CHRISTMANN OTTO DR ,  HARTMANN EDUARD ,  PLATZ ROLF DR ,  STECHL HANNS-HELGE DR

IPC: C09C1/48 ,  C09D17/00

Abstract: The raw materials are mineral oil-carbon black suspensions formed in the splitting of hydrocarbons with air or oxygen by the submerged flame process, where they separate out on quenching the gas stream. Low-boiling hydrocarbons with unpleasant swell and detrimental to printing inks are pref. removed from the suspensions by stripping the hot product from the flame process with inert gases or by application of vacuum. The black obtained is weakly agglomerated and can be easily processed to printing ink pastes with optimum pigment dispersion by simple and fast dispersion methods.

公开(公告)号：DE1950603A1

公开(公告)日：1971-04-15

申请号：DE1950603

申请日：1969-10-08

Applicant: BASF AG

Inventor： FRIZ HANS DR ,  STECHL HANNS-HELGE DR ,  PLATZ ROLF DR

IPC: B01D15/04 ,  B01J41/04 ,  B01J41/05 ,  C10K1/12

Abstract: Continuous removal of S-containing anions from alkaline solutions used washing gases Sulphite, sulphate, thiosulphate and thiocyanate anions are removed from alkaline solution used for removing H2S or COS from gas mixture or CO2 from S-containing gases by passing the spent alkaline solution through an anion exchanger. This process is much more convenient than the usual distillation under vacuum; it is esp. suitable for the regeneration of alkanolamine solution, or N-methylpyrrolidone.

公开(公告)号：DE3460049D1

公开(公告)日：1986-04-24

申请号：DE3460049

申请日：1984-01-24

Applicant: BASF AG

Inventor： NOHE HEINZ DR ,  LOEFFLER ALBERT ,  STECHL HANNS-HELGE DR ,  LIEBOLD GERT DR ,  PFITZNER KLAUS DR

IPC: C07F5/04 ,  C10M107/52 ,  C10M111/04