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    • 4. 发明授权
    • Preparation of 5-methylbutyrolactone
    • 5-甲基丁酰胺的制备
    • US5189182A
    • 1993-02-23
    • US236199
    • 1988-08-25
    • Rudolf KummerHeinz-Walter SchneiderWerner BertleffRolf FischerUwe VagtFritz NaeumannWolfgang HoelderichMatthias Schwarzmann
    • Rudolf KummerHeinz-Walter SchneiderWerner BertleffRolf FischerUwe VagtFritz NaeumannWolfgang HoelderichMatthias Schwarzmann
    • C07D315/00
    • C07D315/00
    • 5-Methylbutyrolactone is prepared by a process in which a pentenoic ester of the formula IX--CO.sub.2 R (I),where X is CH.sub.2 .dbd.CH--CH.sub.2 --CH.sub.2 --, CH.sub.3 --CH.dbd.CH--CH.sub.2 -- or CH.sub.3 --CH.sub.2 --CH.dbd.CH-- and R is alkyl, cycloalkyl, aralkyl or aryl, or a mixture of these esters is reacted with water at from 50.degree. to 350.degree. C. in the presence or absence of a diluenta) over a zeolite and/or phosphate catalyst orb) in the presence of from 0.01 to 0.25 mole of a sulfonic acid, a Lewis acid and/or a non-oxidizing mineral acid per mole of pentenoic ester or over from 0.1 to 40% by weight, based on the pentenoic ester, of a strongly acidic ion exchanger as a catalyst in a first stage, or the pentenoic ester of the formula I, where X and R have the stated meanings, is hydrolyzed in a first stage with the aid of a strongly acidic ion exchanger as a catalyst to give the pentenoic acid of the formula I, where R is hydrogen, and the resulting pentenoic acid is subjected to cyclization in a second stage in the presence of from 0.005 to 0.1 mole of a sulfonic acid, a Lewis acid or a non-oxidizing mineral acid per mole of pentenoic acid or over from 0.1 to 20% by weight, based on the pentenoic acid, of a strongly acidic ion exchanger at from 50.degree. to 350.degree. C.
    • 通过以下方法制备5-甲基丁内酯,其中式I X-CO 2 R(I)的戊烯酸酯,其中X为CH 2 = CH-CH 2 -CH 2 - ,CH 3 -CH = CH-CH 2 - 或CH 3 -CH 2 -CH = CH-和R是烷基,环烷基,芳烷基或芳基,或这些酯的混合物与水在50-350℃下在存在或不存在稀释剂a)的情况下与沸石和/或磷酸盐 催化剂或b)在0.01至0.25摩尔磺酸,路易斯酸和/或非氧化性无机酸/摩尔烯酸酯存在下或基于戊烯酸酯为0.1至40重量% 的作为第一阶段的催化剂的强酸性离子交换剂或其中X和R具有所述含义的式I的戊烯酸在第一阶段中借助于强酸性离子交换剂作为 催化剂得到式I的戊烯酸,其中R是氢,所得戊烯酸在第二阶段中在0.005t的存在下进行环化 o 0.1摩尔磺酸,路易斯酸或非氧化性无机酸/摩尔烯酸,或超过0.1-20重量%,基于戊烯酸,强酸性离子交换剂为50〜 350℃
    • 7. 发明授权
    • Process for the preparation of a hydrogenation catalyst
    • 制备氢化催化剂的方法
    • US5817592A
    • 1998-10-06
    • US590455
    • 1996-01-23
    • Daniel HeinekeHeinz-Walter SchneiderAlfred Thome
    • Daniel HeinekeHeinz-Walter SchneiderAlfred Thome
    • B01J23/42B01J23/96B01J37/16B01J38/64C01B21/14B01J21/18B01J23/16B01J27/185
    • B01J23/42B01J37/16C01B21/1418
    • A process for the preparation of a hydrogenation catalyst by reduction of platinum in an oxidation stage of not less than 2 in an aqueous medium in the presence of a carboniferous support, optionally following partial poisoning with a sulfur, arsenic, tellurium, or antimony-containing compound, using a reducing agent, in which the reducing agent used is an ammonium or phosphonium salt of the general formula I �XR.sup.4 !.sub.n Y I in which X stands for N or P, R stands for hydrogen, C.sub.1 --C.sub.18 alkyl, C.sub.5 --C.sub.10 cycloalkyl, phenyl radical, and also a C.sub.1 --C.sub.4 alkyl radical substituted by phenyl, the phenyl radicals being mono-to tri-substituted by C.sub.1 --C.sub.6 alkyl, halogen, nitro or amino, if desired, provided that the radicals R may be the same or different but cannot simultaneously denote hydrogen, if X is P, n is an integer of 1 to 3, and Y is an organic anion which can reduce platinum in an oxidation stage other than zero to platinum in the oxidation stage of zero.
    • 一种通过在含水载体的存在下在水性介质中在不少于2的氧化阶段还原铂的氢化催化剂的方法,任选地在用硫,砷,碲或含锑的部分中毒后 化合物,使用还原剂,其中所用的还原剂是通式I [XR4] nYinin的铵盐或鏻盐,其中X代表N或P,R代表氢,C1-C18烷基,C5-C10环烷基 苯基,以及被苯基取代的C1-C4烷基,如果需要,苯基由C1-C6烷基,卤素,硝基或氨基单取代至三取代,条件是基团R可以相同 或不同,但不能同时表示氢,如果X为P,n为1至3的整数,Y为有机阴离子,在氧化阶段为零的情况下,铂可以在除氧以外的氧化阶段中还原为铂。
    • 10. 发明授权
    • Preparation of butanedicarboxylic esters
    • 丁烷二羧酸酯的制备
    • US4310686A
    • 1982-01-12
    • US153572
    • 1980-05-27
    • Rudolf KummerHeinz-Walter SchneiderVolker TaglieberFranz-Josef Weiss
    • Rudolf KummerHeinz-Walter SchneiderVolker TaglieberFranz-Josef Weiss
    • C07C67/08B01J31/00B01J31/20C07B61/00C07C67/38C07C67/58C07C69/34C07C69/44
    • C07C69/34C07C67/38
    • A process for the preparation of butanedicarboxylic acid esters, wherein(a) an aqueous cobalt salt solution is treated with excess carbon monoxide and hydrogen in the presence of active charcoal laden with cobalt carbonyl,(b) the resulting aqueous solution of cobalt carbonyl hydride is extracted with butadiene or a butadiene containing hydrocarbon mixture and the aqueous phase is separated off,(c) the butadiene, or butadiene/hydrocarbon mixture, containing cobalt carbonyl hydride, cobalt carbonyl and butenyl-cobalt tricarbonyl, is reacted with carbon monoxide and excess C.sub.1 -C.sub.4 -alkanol in the presence of a tertiary nitrogen base,(d) the resulting reaction mixture is freed from the tertiary nitrogen base contained therein, down to a content of from 0.1 to 0.3 mole per mole of pentenoic acid ester, and from excess hydrocarbons, and the pentenoic acid ester remaining in the reaction mixture is reacted with carbon monoxide and excess C.sub.1 -C.sub.4 -alkanol in the presence of the cobalt carbonyl and tertiary nitrogen base contained in the reaction mixture,(e) the reaction mixture is treated with an oxidizing agent in the presence of the aqueous acid solution which has been separated off in stage (b), and the mixture is separated into an organic phase, from which butanedicarboxylic acid esters are isolated by distillation, and an aqueous phase, and(f) the aqueous phase is extracted with water-immiscible solvents, the phases are separated, and the resulting aqueous phase is freed from alkanols and tertiary nitrogen base and is recycled to stage (a).
    • 制备丁烷二羧酸酯的方法,其中(a)钴水溶液在过量的一氧化碳和氢气的存在下,在负载有羰基钴的活性炭存在下处理,(b)得到的氢化羰基碳水溶液为 用丁二烯或含丁二烯的烃混合物萃取并分离出水相,(c)含有羰基氢化钴,羰基钴和三丁基钴的三羰基化合物的丁二烯或丁二烯/烃混合物与一氧化碳和过量的C1 -C 4 - 链烷醇,(d)将所得反应混合物与其中所含的叔氮碱脱除,至每摩尔戊烯酸酯为0.1至0.3摩尔,过量 碳氢化合物和残留在反应混合物中的戊烯酸酯在羰基钴a存在下与一氧化碳和过量的C 1 -C 4烷醇反应 (e)反应混合物在步骤(b)中分离的酸性水溶液存在下用氧化剂处理,并将混合物分离成有机相 通过蒸馏分离丁二羧酸酯和水相,(f)水相用不与水混溶的溶剂萃取,分离相,所得水相脱离链烷醇和叔氮碱, 被回收到舞台(a)。