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公开(公告)号：DE2313406A1
公开(公告)日：1974-09-26
申请号：DE2313406
申请日：1973-03-17
Applicant: BASF AG
Inventor： MESCH WALTER DIPL CHEM DR
IPC: C07C49/06
Abstract: Title cpd is characterised by a process where the low boiling byproducts from the distillation of 2-ethylhexanoic acid, obtd from oxidn of 2-ethyl hexanal with molecular O2 or O2 contg. gas, are dehydrogenated in the presence of a dehydrogenating catalyst (pref. contg Ni, Cu and Cr, or ZnO) at 150-500 degrees C pref. at 350-450 degrees C in the gaseous phase and in the presence of an inert gas e.g. N2.
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公开(公告)号：DE2445961A1
公开(公告)日：1976-04-08
申请号：DE2445961
申请日：1974-09-26
Applicant: BASF AG
Inventor： HUCHLER OTTO HERMANN DIPL CHEM , MESCH WALTER DIPL CHEM DR , WINDERL SIEGFRIED DIPL CHEM DR , MUELLER HERBERT DIPL CHEM DR , HOFFMANN HERWIG DIPL CHEM DR
IPC: C08G65/20 , C08G65/30 , C08G65/324 , C08G65/332
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公开(公告)号：DE2738724A1
公开(公告)日：1979-03-01
申请号：DE2738724
申请日：1977-08-27
Applicant: BASF AG
Inventor： MESCH WALTER DIPL CHEM DR
IPC: C07D295/16 , C07C87/14 , C07C85/12
Abstract: Prodn. of omega,omega'-bis-dialkylamino-alkanes of formula (I) (in which m = 4,5 or 6; R1 and R2 are alkyls opt. substd. with hydrogenation-resistant substituents; alternatively R1R2N may represent a 5- or 6-membered heterocyclic ring) comprises hydrogenating the corresp. omega,omega'-bis-dialkyl-amides of formula (II) (in which n = 2,3 or 4) in presence of a catalyst contg. Cu and Co.
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公开(公告)号：DE2439275A1
公开(公告)日：1976-03-04
申请号：DE2439275
申请日：1974-08-16
Applicant: BASF AG
Inventor： GRAEFJE HEINZ DIPL CHEM DR , MESCH WALTER DIPL CHEM DR , WINDERL SIEGFRIED DIPL CHEM DR , HOFFMANN HERWIG FRANKENTHAL DI
IPC: C07C211/14 , C07C67/00 , C07C209/00 , C07C209/22 , C07C209/64 , C07C87/20
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Patent Agency Ranking
公开(公告)号：DE2319574A1
公开(公告)日：1974-11-14
申请号：DE2319574
申请日：1973-04-18
Applicant: BASF AG
Inventor： MESCH WALTER DIPL CHEM DR , WITTWER ARNOLD DIPL CHEM DR
Abstract: Succinic acid is heated to boiling with a hydrophilic solvent which has a high dissolving power for succinic acid and its anhydride has a condensation temp. between 100 and 235 degrees C and does not form an azeotropic mixt. with H2O. The resulting vapour is condensed in a fractionating column, the H2O drawn off at the head of the column and the resulting succinic acid anhydride sepd. from the solvent by d tn. the process gives a frictionless continuous operation with full conversion to a pure prod. at low cost.
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公开(公告)号：DE2945050A1
公开(公告)日：1981-05-21
申请号：DE2945050
申请日：1979-11-08
Applicant: BASF AG
Abstract: Prepn. of bis-(2-ethylhexyl)ether (I) comprises reacting 2-ethylhexen-2-al (II) with 2-ethylhexanol (III) in the presence of an acid catalyst (IV) at 50-200 deg.C, and hydrogenating the resulting diene (V) over a transition or noble metal catalyst. (Where R1 is ethyl and R2 is 2-ethylhexyl). (IV) includes mineral and Lewis acids, e.g. H2SO4, toluene sulphonic acid, phosphoric acid, BF3, ZnCl2, and is used in 0.1-2% w.r.t. (II). Pref. the (II) and.
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公开(公告)号：DE2824908A1
公开(公告)日：1979-12-20
申请号：DE2824908
申请日：1978-06-07
Applicant: BASF AG
Inventor： MESCH WALTER DIPL CHEM DR
IPC: C07C215/08 , C07C93/04
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公开(公告)号：DE2445959A1
公开(公告)日：1976-04-15
申请号：DE2445959
申请日：1974-09-26
Applicant: BASF AG
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公开(公告)号：DE2445962A1
公开(公告)日：1976-04-08
申请号：DE2445962
申请日：1974-09-26
Applicant: BASF AG
Inventor： HUCHLER OTTO HERMANN DIPL CHEM , MESCH WALTER DIPL CHEM DR , WINDERL SIEGFRIED , MUELLER HERBERT DIPL CHEM DR , HOFFMANN HERWIG DIPL CHEM DR
IPC: C08F8/12 , C08G65/324 , C08G65/332
Abstract: Hydroxylated polymers, esp. polyetrahydrofuran, for polyurethane prepn. are prepd. by saponifying acyloxylated polymers at 10-200 degrees C in an aq. salt soln. contg. a catalyst consisting of an acid or an acid-forming cpd. (pref. a halo acid). The reaction mixt. may contain an alcohol which is immiscible, or only partly miscible with water. The simple, economic process avoids the use and recovery of special solvents, and leads to less pollution by by-prods.
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