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公开(公告)号:DE2540871A1
公开(公告)日:1977-03-24
申请号:DE2540871
申请日:1975-09-13
Applicant: BASF AG
Inventor: GRAEFJE HEINZ DIPL CHEM DR , MESCH WALTER DIPL CHEM DR , WINDERL SIEGFRIED DIPL CHEM DR , MUELLER HERBERT DIPL CHEM DR , BOETTGER GUENTER DIPL CHEM DR , HOFFMANN HERWIG DIPL CHEM DR
IPC: C07C209/64 , C07C87/20
Abstract: Prepn. of dipropylene triamine and tripropylene tetramine comprises condensing 1,2- or pref. 1,3-propylene diamine at 50-250 degrees C, pref. in presence of H2 and opt. with addn. of NH3. A Gp. VIII metal-contg. catalyst is used, including noble metals, and NH3 is produced during reaction. Higher polycondensates are decomposed to the dimers and trimers. At 25-200 bars H2 pressure and 160-200 degrees C conversions of ca 60% and sometimes ca 100% are obtd. for reaction times of 1-4 hrs. Good specificity for the dimer can be obtd. Prods. can be sepd. easily by distillation; very little prodn. of cyclic, branched or partially deaminated prods. occurs.
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公开(公告)号:DE3231794A1
公开(公告)日:1983-03-10
申请号:DE3231794
申请日:1982-08-26
Applicant: BASF AG
Inventor: HERTEL OTTO DIPL CHEM DR , BOETTGER GUENTER DIPL CHEM DR , KOERNIG WOLFGANG DIPL CHEM DR , WACHE HARRO DIPL CHEM DR , SCHANZ RUDI DIPL CHEM DR , REISS WOLFGANG DIPL CHEM DR
Abstract: 2-Ethylhexenal which is essentially free from water and from sodium hydroxide solution is obtained from the reaction product of n-butyraldehyde which contains sodium hydroxide solution and forms an emulsion, when the reaction product is treated with beach sand and the aqueous sodium hydroxide solution, which is separated off in the form of a layer, is removed after the treatment.
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公开(公告)号:DE2555735A1
公开(公告)日:1977-06-23
申请号:DE2555735
申请日:1975-12-11
Applicant: BASF AG
Inventor: GRAEFJE HEINZ DIPL CHEM DR , VOGES DIETER DIPL CHEM DR , MERKEL KARL DR , BOETTGER GUENTER DIPL CHEM DR , KOERNIG WOLFGANG DIPL CHEM DR , HOFFMANN HERWIG DIPL CHEM DR
IPC: C07C93/04
Abstract: In the prodn. of aminopropyl ethers (I) of polyhydric alcohols (II) by addn. of excess CH2:CHCN to (II) in the presence of alkaline catalysts (III) and hydrogenation of the cyanoethyl ether (IV) formed, after removing the excess CH2:CHCN, the mixt. is treated with NH3 before hydrogenation. (I) are used in the prodn. of synthetic resins by reaction with epoxides or dicarboxylic acids. Under suitable conditions, NH3 reacts with CH2:CHCN without causing aminolysis of (IV). On hydrogeneration, the aminonitriles are converted mainly to H2N(CH2)3 NH2, which is a valuable by-prod. Better results are obtd. if a small amt. of an aprotic polar solvent is added before the NH3. E.g. HO(CH2)4OH was reacted with CH2:CHCN is the presence of C6H5CH2NMe3OH, treated with N-methylpyrrolidone and NH3 and hydrogenated. No loss of catalytic activity or increase in the yield of prods. with a higher b.pt. than H2N(CH2)3O(CH2)4O(CH2)3NH2 occurred in 5 months prodn.
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公开(公告)号:DE3125662A1
公开(公告)日:1983-01-13
申请号:DE3125662
申请日:1981-06-30
Applicant: BASF AG
Inventor: SCHROEDER WOLFGANG DIPL CHEM D , LENGSFELD WOLFGANG DIPL CHEM D , HEILEN GERD DIPL CHEM DR , HERTEL OTTO DIPL CHEM DR , BOETTGER GUENTER DIPL CHEM DR
IPC: B01J23/74 , B01J23/75 , B01J23/755 , C07D265/30 , C07D295/00 , C07D295/023 , C07D295/02 , C07D295/04
Abstract: Morpholine and other cyclic imines are obtained by reacting diethylene glycol and other appropriate diols with ammonia under hydrogenating conditions in the gas phase in the presence of a catalyst which contains copper, a smaller amount of nickel and alumina.
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公开(公告)号:DE2832699A1
公开(公告)日:1980-02-14
申请号:DE2832699
申请日:1978-07-26
Applicant: BASF AG
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