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公开(公告)号：DE3010105A1
公开(公告)日：1981-10-01
申请号：DE3010105
申请日：1980-03-15
Applicant: BASF AG
Inventor： HAMMER HANS DIPL ING , HERTEL OTTO DIPL CHEM DR , JESCHEK GERHARD DIPL CHEM DR , MUELLER HERBERT DIPL CHEM DR , SCHARF EMIL DIPL CHEM DR
IPC: C07C211/10 , C07C67/00 , C07C209/00 , C07C209/16 , C07C211/09 , C07C211/65 , C07C213/00 , C07C213/04 , C07C215/08 , C07C215/14 , C07D295/088 , C07C89/02 , C07C91/04
Abstract: In preparing or reacting alkanolamines, especially at high temperatures, the use of substantially nickel-free alloy steels prevents corrosion and discoloration.
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公开(公告)号：DE2639648A1
公开(公告)日：1978-03-16
申请号：DE2639648
申请日：1976-09-03
Applicant: BASF AG
Inventor： HOFFMANN HERWIG DIPL CHEM DR , MUELLER HERBERT DIPL CHEM DR , TOUSSAINT HERBERT DIPL CHEM DR , WITTWER ARNOLD DIPL CHEM DR
Abstract: Prepn. of mono- or poly-, symmetrical or asymmetrical tert-amines comprises reacting a prim. or sec. amine R1-NH-R2 (where R1 and R2 are each H, alkyl or cycloalkyl gps., opt. substd. by inert substs. which, in turn, may carry amino gps. -NHR1) with mono- or di-hydric prim. or sec. - alcohols. The reaction is catalysed by a hydrogenation/dehydrogenation catalyst, opt. in the presence of H2, and the amine is fed into the liq. reaction mixt. contg. the mixt. of alcohol required for the reaction and the proportion of water formed in the reaction is eliminated. High yields of tert-amines are obtd. with low amts. of prim- and sec-amine contamination. Since the alcohol reactant is completely consumed the sepn. of alcohol from tert-amine, which is usually difficult and energy-consuming, is avoided.
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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：DE2509968A1
公开(公告)日：1976-09-16
申请号：DE2509968
申请日：1975-03-07
Applicant: BASF AG
Inventor： HUCHLER OTTO HERMANN DIPL CHEM , WINDERL SIEGFRIED DIPL CHEM DR , MUELLER HERBERT DIPL CHEM DR , HOFFMANN HERWIG DIPL CHEM DR
IPC: C07D307/08 , C07D307/28 , C07D309/04 , C07D315/00 , C07D307/00
Abstract: Cyclic ethers having >=5 ring members are prepd. from >=4C diols in the presence of an acid, esp. aq. H2SO4, as catalyst, by a process in which a water content of >=30 (>40) wt % is kept up in reaction mixt. Cyclic ethers obtd. are useful as monomers, synthesis intermediates and solvents. Use of process for prepn, of tetrahydrofuran from butanediol-1, 4 is specifically claimed. Process allows (i) use of undistilled butanediol without requiring a high catalyst consumption, (ii) working with appreciable aq. dilution. Yields are almost quantitative. Process can be carried out continuously, e.g. for months, without interruption.
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Patent Agency Ranking
公开(公告)号：DE2445960A1
公开(公告)日：1976-04-15
申请号：DE2445960
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: 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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公开(公告)号：DE2801578A1
公开(公告)日：1979-07-19
申请号：DE2801578
申请日：1978-01-14
Applicant: BASF AG
Inventor： MUELLER HERBERT DIPL CHEM DR , HUCHLER OTTO HERMANN DIPL CHEM , HOFFMANN HERWIG DIPL CHEM DR
Abstract: Polybutyleneglycol carboxylic acid diesters R-CO-O-(-CH2CH2CH2CH2-O-)n-CO-R' (I) (in which R and R1 are alkyl, COOH-contg. opt. unsaturated aliphatic gp. or COOH-contg. aromatic gp. and n is a 2-200) are made by first treating tetrahydrofuran with strong mineral acids, organic sulphonic acids, silica gel and/or fuller's earth. The treated THF is then polymerised in the presence of >=1 carboxylic acid or carboxylic acid anhydride and a polymerisation catalyst to form the (I). The pretreatment of the THF removes traces of impurities present in technical THF and gives higher rates of polymerisation, reproducible molecular weights and avoidance of discoloured prods. The (I) can be transesterified e.g. with methanol to give the corresponding dihydroxy cpds., which are useful raw materials for the prodn. of polyurethanes.
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公开(公告)号：DE2643400A1
公开(公告)日：1978-03-30
申请号：DE2643400
申请日：1976-09-27
Applicant: BASF AG
Inventor： MUELLER HERBERT DIPL CHEM DR , ROSS KARL-HEINZ DIPL CHEM DR , SCHROEDER WOLFGANG DIPL CHEM D
IPC: C07C29/132 , C07C31/18 , C07C29/00
Abstract: Alcohols are prepd. by hydrogenating water-soluble olefin oxides in aq. soln. at an Ni catalyst, under increased H2 pressure and temp. In a pref. process, 1,2,4-butane-triol is prepd. by hydrogenating 1,4-butanediol oxide. Hydrogenation of water-soluble olefin oxides in aq. soln. proceeds as well as in an anhydrous solvent. Epoxide concn. is esp. 10-50 wt.%. Hydrogenation conditions are 200-300 bar, at 20-200 (50-150) esp. 100 degrees C. The epoxides may contain 2-30C and opt. solubilising gps. Catalyst may be Raney Ni, reduced Ni silicates and supported Ni. Catalyst concn. in suspension is opt. 2-20 (5-15) wt. %.
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9.发明专利
公开(公告)号：DE2545659A1
公开(公告)日：1977-04-21
申请号：DE2545659
申请日：1975-10-11
Applicant: BASF AG
Inventor： HOFFMANN HERWIG DIPL CHEM DR , MERKEL KARL DR , MUELLER HERBERT DIPL CHEM DR , NEUMAYR FRANZ DIPL CHEM DR
IPC: C07C17/363 , C07C19/02
Abstract: Prodn. of alkyl chlorides comprises decarboxylating alkyl chloroformates at 80-200 degrees C (pref. 110-140 degrees C) in an aprotic solvent. The solvent is pref. an amide, esp. an N-alkylated cyclic amide of formula (I): (where x = 2-12; R = 1-18C alkyl). The prefd. cpd. (I) is N-methylpyrrolidone. The starting material can be a chloroformate derived from a 1-30C alkanol or a 2-30 di- or polyhydric alcohol. Process gives high yields (e.g. 97-98%) of high purity prods. without the use of catalysts. In an example, MeCl is prepd. continuously in 98% yield by pumping methyl chloroformate into a pressurised reactor contg. N-methylpyrrolidone at 120-130 degrees C.
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公开(公告)号：DE2545655A1
公开(公告)日：1977-04-21
申请号：DE2545655
申请日：1975-10-11
Applicant: BASF AG
Inventor： HUPFER LEOPOLD DIPL CHEM DR , MUELLER HERBERT DIPL CHEM DR , FLIEGE WERNER DIPL CHEM DR , MERKEL KARL DR , HOFFMANN HERWIG DIPL CHEM DR
IPC: C07C121/34
Abstract: New 3-methyl-pentan-2,5-diol-bis(2-cyanoethyl) ether is of formula NC-(CH2)2-O-(CH2)2-CH(CH3)-(CH2)2-O-(CH2)2-CN (I) (I) is an intermediate in the prodn. of the corresponding diamine which in turn can be used to prepare epoxy resins and polyurethanes. (I) is also useful as a polar solvent and an additive for minerals and propellants. (I) is made by reaction of 2 mols acrylonitrile and 3-methyl-penta-1,5-diol.
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