公开(公告)号：US3996298A

公开(公告)日：1976-12-07

申请号：US520094

申请日：1974-11-01

申请人： Yusuke Izumi ,  Sumio Akiyama ,  Kinya Yamazaki ,  Masato Todo ,  Takao Tomita

发明人： Yusuke Izumi ,  Sumio Akiyama ,  Kinya Yamazaki ,  Masato Todo ,  Takao Tomita

IPC分类号： C07C29/04

CPC分类号： C07C29/04

摘要： A process for the preparation of monohydric alcohols by contacting a monoolefin of 2-4 carbon atoms with an aqueous solution containing a heteropoly-acid ion, thereby subjecting the olefin to a hydration reaction, characterized in that said aqueous solution contains the heteropoly-acid ion in a concentration of at least 1/40,000 mol per liter and has a pH ranging from 2.0 to 4.5, and the aqueous solution is heated to a temperature sufficiently high for initiating the hydration reaction, while the free iron ion concentration therein is maintained at not higher than 10 ppm substantially throughout the whole hydration reaction period.

摘要翻译： 通过使2-4个碳原子的单烯烃与含有杂多酸离子的水溶液接触来制备一元醇的方法，从而使烯烃进行水合反应，其特征在于所述水溶液含有杂多酸离子 浓度至少为1 / 40,000摩尔/升，pH为2.0-4.5，并将水溶液加热到足够高的温度以引发水合反应，而其中的游离铁离子浓度保持不变 在整个水合反应期间基本上高于10ppm。

公开(公告)号：US5254684A

公开(公告)日：1993-10-19

申请号：US885604

申请日：1992-05-19

申请人： Yusuke Izumi ,  Hiroshi Sato ,  Hiroshi Yoshioka ,  Yoshisaburou Nomura

发明人： Yusuke Izumi ,  Hiroshi Sato ,  Hiroshi Yoshioka ,  Yoshisaburou Nomura

IPC分类号： C07C231/10 ,  C07D201/04 ,  C07D223/00 ,  C07D239/00

CPC分类号： C07D201/04 ,  C07C231/10

摘要： A process for producing an amide which comprises subjecting an oxime to liquid phase rearrangement in the presence of phosphorus pentoxide and at least one compound selected from the group consisting of N,N-dialkyl amides, N-alkyl cyclic amides and dialkyl sulfoxides and optionally a fluorine-containing strong said or its derivative. Said process can rearrange an oxime to a corresponding amide in a good yield under mild reaction conditions in the presence of a less stoichiometric amount of a catalyst.

公开(公告)号：US4279883A

公开(公告)日：1981-07-21

申请号：US747214

申请日：1976-12-03

申请人： Yusuke Izumi ,  Hidetaka Miyazaki ,  Shin-ichi Kawahara

发明人： Yusuke Izumi ,  Hidetaka Miyazaki ,  Shin-ichi Kawahara

IPC分类号： B01J23/40 ,  C01B15/029 ,  C01B15/02

CPC分类号： C01B15/029 ,  B01J23/40

摘要： In a process for preparing hydrogen peroxide by reacting hydrogen with oxygen in the presence of a catalyst in an aqueous medium containing hydrogen peroxide, the improvement which comprises using an aqueous medium which contains dissolved hydrogen and a platinum-group catalyst having adsorbed thereto hydrogen.

摘要翻译： 在催化剂存在下，在含有过氧化氢的水性介质中，通过使氢与氧反应制备过氧化氢的方法，其改进在于使用含有溶解氢的水性介质和吸附有氢的铂族催化剂。

公开(公告)号：US4009252A

公开(公告)日：1977-02-22

申请号：US589776

申请日：1975-06-23

申请人： Yusuke Izumi ,  Hidetaka Miyazaki ,  Shin-ichi Kawahara

发明人： Yusuke Izumi ,  Hidetaka Miyazaki ,  Shin-ichi Kawahara

IPC分类号： B01J23/40 ,  C01B15/029 ,  C01B15/02

CPC分类号： B01J23/40 ,  C01B15/029

摘要： A process for preparing hydrogen peroxide which comprises reacting hydrogen with oxygen in an aqueous medium containing a platinum-group catalyst, characterized in that the partial pressure of hydrogen and the partial pressure of oxygen in the gaseous phase of the reaction system are maintained at at least 0.5 atmosphere and at least 1.0 atmosphere respectively, and the platinum group catalyst is caused to be present in an amount, calculated as metal, of at least a minimum effective catalytic amount up to 30 mg per 100 ml. of said aqueous medium.

公开(公告)号：US5225547A

公开(公告)日：1993-07-06

申请号：US715767

申请日：1991-06-14

申请人： Yusuke Izumi

发明人： Yusuke Izumi

IPC分类号： C07D201/04

CPC分类号： C07D201/04

摘要： A reaction accelerator for rearrangement of an oxime to an amide consisting of an alkylating agent and an N,N-disubstituted formamide or N,N-disubstituted carboxylic acid amide represented by formula (1): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, represent alkyl groups having 1 to 6 carbon atoms or substituted or unsubstituted phenyl groups having 6 to 9 carbon atoms, and R.sup.3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. An amide can effectively be produced by rearranging a corresponding oxime in the presence of said reaction accelerator.

公开(公告)号：US4205182A

公开(公告)日：1980-05-27

申请号：US945666

申请日：1978-09-25

申请人： Yusuke Izumi ,  Junji Maekawa ,  Katsumi Suzuki

发明人： Yusuke Izumi ,  Junji Maekawa ,  Katsumi Suzuki

IPC分类号： C07C69/007 ,  B01J20060101 ,  B01J21/02 ,  B01J23/00 ,  B01J23/30 ,  B01J23/84 ,  B01J27/00 ,  B01J27/18 ,  C07B61/00 ,  C07C20060101 ,  C07C67/04 ,  C07C69/00 ,  C07C69/02 ,  C07C69/06 ,  C07C69/14 ,  C07C69/24 ,  C07C69/54

CPC分类号： C07C67/04

摘要： In a process for producing an ethyl ester of an aliphatic carboxylic acid which comprises reacting ethylene with the aliphatic carboxylic acid in the liquid phase in the presence of an acid catalyst, the improvement wherein a heteropolyacid of tungsten or an acidic metal salt thereof is used as the acid catalyst, and the reaction is carried out in the presence of water in an amount of up to 7.5% by weight based on the weight of the aliphatic carboxylic acid.

摘要翻译： 在制备脂肪族羧酸的乙酯的方法中，其包括在酸催化剂的存在下，在液相中使乙烯与脂族羧酸反应，其中使用钨或其酸性金属盐的杂多酸作为 酸催化剂，反应在水存在下以基于脂肪族羧酸的重量计最多7.5重量％的量进行。

公开(公告)号：US4010072A

公开(公告)日：1977-03-01

申请号：US655422

申请日：1976-02-05

申请人： Yuichi Miura ,  Kiyohiko Yutani ,  Yusuke Izumi

发明人： Yuichi Miura ,  Kiyohiko Yutani ,  Yusuke Izumi

IPC分类号： C12P7/42 ,  C12N9/14 ,  C12P7/46 ,  C12D1/02

CPC分类号： C12N9/14 ,  C12P7/46 ,  Y10S435/872

摘要： A process for preparing L-tartaric acid, which comprises contacting a microorganism of the genus Nocardia having the ability to produce an enzyme which cleaves and hydrolyzes the epoxy ring of cis-epoxysuccinic acid, or an enzyme isolated therefrom, with cis-epoxysuccinic acid or its derivatives in an aqueous medium, and recovering the resulting L-tartaric acid.

摘要翻译： 一种制备L-酒石酸的方法，其包括使具有裂解并水解顺式环氧琥珀酸的环氧环的酶的诺卡氏菌属的微生物或与其分离的酶与顺式 - 环氧琥珀酸或 其衍生物在水性介质中，并回收所得的L-酒石酸。

公开(公告)号：US3946079A

公开(公告)日：1976-03-23

申请号：US104735

申请日：1971-01-07

申请人： Yukio Mizutani ,  Yusuke Izumi ,  Yoshiaki Watanabe

发明人： Yukio Mizutani ,  Yusuke Izumi ,  Yoshiaki Watanabe

IPC分类号： B01J27/18 ,  C07C45/74 ,  C07C49/203 ,  C07C45/00

CPC分类号： B01J27/1813 ,  B01J27/1802 ,  C07C45/74 ,  C07C49/203

摘要： A process of producing ketone condensation products which comprises condensing at a temperature of from 60.degree. to 300.degree.C. a ketone having 3-19 carbon atoms in the presence of, as a catalyst, at least one metal phosphate selected from titanium phosphate, zirconium phosphate, hafnium phosphate, and tin phosphate; dimeric condensation or trimeric condensation can be achieved depending upon the reaction conditions.

摘要翻译： 一种制备酮缩合产物的方法，其包括在作为催化剂存在下，在60-300℃的温度下冷凝具有3-19个碳原子的至少一种选自磷酸钛，锆的金属磷酸盐 磷酸盐，磷酸铪和磷酸锡; 可以根据反应条件实现二聚缩合或三聚缩合。