公开(公告)号：DE2327574A1

公开(公告)日：1975-01-02

申请号：DE2327574

申请日：1973-05-30

Applicant: BASF AG

Inventor： FUERST ERNST DR ,  HOFFMANN HERWIG DIPL CHEM DR

IPC: C07C233/16 ,  C07C103/38 ,  C07C7/10

Abstract: The new cpd. has formula OHC-NMe-CH2-O-CH2-NME-CHO. It is prepd. by (a) condensing OHC-NHMe with HCHO to give OHC-NME-CH2OH and dimerising this at pH 4-6. It can be used in the extn. of aromatic cpds. from hydrocarbon mixts. in the petroleum ind. and as textile and paper auxiliary. Prepn. can be carried out continuously.

公开(公告)号：DE2316725A1

公开(公告)日：1974-11-07

申请号：DE2316725

申请日：1973-04-04

Applicant: BASF AG

Inventor： FUERST ERNST DR ,  GERENDAS JOZSEF DIPL CHEM DR ,  ROKOHL RUDOLF DIPL CHEM DR ,  FIKENTSCHER ROLF DIPL CHEM DR ,  HELFERT HERBERT DIPL CHEM DR

IPC: D06P1/66 ,  D06P3/76 ,  C07D55/14 ,  D06P1/88

Abstract: Title cpds. of formula (I): (where R1 is opt. branched 1-6C alkyl opt. substd. by OH gps, or two R1 gps. together with the N atom form a 4-7C heterocycle; R2-R4 are each a cyclic, linear or branched, satd. or contg. an olefinic link 1-30C alkyl, opt. substd. by OH gps. and opt. interrupted by ether bridges, or a phenyl or benzyl gp. opt. substd. by Cl or 1-12C alkyl; R3 and R4 may also represent H or a pair of free electrons; R5 is H or 1-4C alkyl; Z is 2-6C alkylene, opt. substd. esp. by OH gps. or interrupted by either or ester gps; X- is an (in)organice anion; and these various anions may be the same or different; n is a whole no. 1-3), are prepd. by quaternising the corresp. unguaternised cpd. They are effective in amts. of 0.003-1.5 wt. % w.r.t. anionic polyacrylonitrile fibres.

公开(公告)号：DE2261636A1

公开(公告)日：1974-06-20

申请号：DE2261636

申请日：1972-12-16

Applicant: BASF AG

Inventor： FUERST ERNST DR ,  BRUNNER ERWIN DR

IPC: B01D53/14 ,  C01B17/60 ,  B01D53/34

公开(公告)号：DE2216733A1

公开(公告)日：1973-10-18

申请号：DE2216733

申请日：1972-04-07

Applicant: BASF AG

Inventor： HOFFMANN HERWIG DR ,  FUERST ERNST DR ,  BRUNNER ERWIN DR ,  WINDERL SIEGFRIED DR

IPC: B01D53/50 ,  B01D53/14

Abstract: is removed from gases by adsorption in a solvent of formula where n = 0-3; R = - (where R1 = 1-3C alkyl) followed by desorption of the dissolved SO2. The solvents are stable up to 140 degrees C have low vapour pres. and are non-corrosive.

公开(公告)号：DE2158609A1

公开(公告)日：1973-06-20

申请号：DE2158609

申请日：1971-11-26

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN DR ,  FUERST ERNST DR

IPC: C07C1/00 ,  C07C7/00 ,  C07C7/08 ,  C07C7/10 ,  C07C7/11 ,  C07C11/12 ,  C07C13/02 ,  C07C67/00

Abstract: 1401875 Extracting C 4 or C 5 conjugated diolefins BADISCHE ANILIN-& SODAFABRIK AG 24 Nov 1972 [26 Nov 1971] 54360/72 Heading C5E Pure C 4 or C 5 conjugated diolefins are separated from hydrocarbon mixtures by countercurrent gas scrubbing liquid-liquid extraction, extractive distillation and/or countercurrent distribution using as selective solvent a mixture of:- (a) 5-95 wt. per cent of an N-alkylpyrrolidone which may contain an inert substituent; and (b) 5-95 wt. per cent of an N-hydroxyalkyl compound of the general formula in which Y is C 2 or C 3 alkylene or alkenylene, or o-phenylene which may be wholly or partly hydrogenated R is a linear or branched alkylene and Z is oxygen or two hydrogens. The solvent mixture may contain up to 25 wt. per cent water. Preferred solvent components are (a) N-methylpyrrolidone; (b) N-hydroxyethylphthalimide, N-hydroxyethylsuccinimide and N-hydroxyethylpyrrolidone. The diolefins which may be separated by the process of the invention are butadiene, isoprene, 1,3-pentadiene and cyclopentadiene.

公开(公告)号：DE2142104A1

公开(公告)日：1973-03-01

申请号：DE2142104

申请日：1971-08-23

Applicant: BASF AG

Inventor： HOFFMANN HERWIG DR ,  FUERST ERNST DR ,  WINDERL SIEGFRIED DR ,  BRUNNER ERWIN DR

IPC: B01D53/14 ,  B01D53/50 ,  B01D53/77 ,  B01D53/34

公开(公告)号：DE1768238A1

公开(公告)日：1971-10-28

申请号：DE1768238

申请日：1968-04-19

Applicant: BASF AG

Inventor： NOTTES GUENTHER DR-ING ,  FUERST ERNST DR

IPC: B41F27/00 ,  C09K15/00 ,  C09K15/18

公开(公告)号：DE1571754A1

公开(公告)日：1971-03-25

申请号：DE1571754

申请日：1966-04-06

Applicant: BASF AG

Inventor： HAARER ERICH DR ,  FUERST ERNST DR ,  BUDDENBERG OTTO DR

IPC: C10K1/16 ,  B01D53/16

公开(公告)号：DE2551717A1

公开(公告)日：1977-06-02

申请号：DE2551717

申请日：1975-11-18

Applicant: BASF AG

Inventor： KUESSNER KLAUS DR ,  HENRICI HANS J DR ,  APPL MAX DR ,  WAGNER ULRICH DR ,  VOLKAMER KLAUS DR ,  FUERST ERNST DR

IPC: B01D53/14 ,  B01D53/40 ,  B01D53/48 ,  B01D53/77 ,  C10K1/14 ,  B01D53/16

公开(公告)号：DE2439274A1

公开(公告)日：1976-03-04

申请号：DE2439274

申请日：1974-08-16

Applicant: BASF AG

Inventor： FUERST ERNST DR ,  MUELLER HERBERT DIPL CHEM DR

IPC: C07C233/00 ,  C07C103/44

Abstract: 3-Dimethylaminopropyl formamide (I) is prepd. by keeping a stoichiometric mixt. of Me formate and 3-dimethyl aminopropylamine at 40-95 (55-75) degrees C for 5-10 (6-8) hrs., and then freeing from MeOH in a device which allows quick (esp. thin-film) evaporation, at surface temp. 130-140 degrees C after duration of 0.5-5 (1-3) min. (I) is obtd. in near quantitative yields.