Method for preparing pyruvate ester
    2.
    发明授权
    Method for preparing pyruvate ester 有权
    制备丙酮酸酯的方法

    公开(公告)号:US08877959B2

    公开(公告)日:2014-11-04

    申请号:US13619626

    申请日:2012-09-14

    IPC分类号: C07C69/716

    CPC分类号: C07C67/313 C07C69/716

    摘要: A method for preparing a pyruvate ester is disclosed. In the method of the present invention, a lactate ester is oxidized by hydrogen peroxide in the presence of a Ti—Si molecular sieve catalyst. In the present invention, the Ti—Si molecular sieve catalyst is easily filtered and recycled, the reaction conditions are mild due to the usage of hydrogen peroxide, the process is simple and easily performed, the conversion rate of the lactate ester is high, and the selectivity of the pyruvate ester is high.

    摘要翻译: 公开了一种制备丙酮酸酯的方法。 在本发明的方法中,在Ti-Si分子筛催化剂存在下,乳酸酯被过氧化氢氧化。 在本发明中,Ti-Si分子筛催化剂易于过滤和再循环,由于使用过氧化氢,反应条件温和,操作简单且易于进行,乳酸酯的转化率高, 丙酮酸酯的选择性高。

    METHOD FOR PREPARING CATECHOL
    3.
    发明申请
    METHOD FOR PREPARING CATECHOL 审中-公开
    制备CATECHOL的方法

    公开(公告)号:US20140179956A1

    公开(公告)日:2014-06-26

    申请号:US14102937

    申请日:2013-12-11

    IPC分类号: C07C37/58

    CPC分类号: C07C37/60 C07C39/08

    摘要: A method for preparing catechol is provided. The method includes performing hydroxylation of phenol by using zirconium-containing titanium silicalite as a catalyst in the presence of phenol, a solvent and hydrogen peroxide. The method uses zirconium-containing titanium silicalite as a catalyst to increase the selectivity of phenol and utilization of hydrogen peroxide, and thus to increase the overall reaction yield.

    摘要翻译: 提供了一种制备儿茶酚的方法。 该方法包括在苯酚,溶剂和过氧化氢存在下使用含锆钛硅沸石作为催化剂进行苯酚的羟基化反应。 该方法使用含锆钛硅沸石作为催化剂,提高苯酚的选择性和过氧化氢的利用率,从而提高总反应产率。

    METHOD FOR PRODUCING KETOXIME
    4.
    发明申请
    METHOD FOR PRODUCING KETOXIME 有权
    生产KETOXIME的方法

    公开(公告)号:US20140179951A1

    公开(公告)日:2014-06-26

    申请号:US14087511

    申请日:2013-11-22

    IPC分类号: C07C249/04

    CPC分类号: C07C249/04 C07C251/38

    摘要: A method for producing a ketoxime is provided. The method includes the step of performing a reaction of a nitrogen-containing compound, ketone and an oxidant by using a titanium-silicon molecular sieve as a catalyst, so as to form the ketoxime, thereby increasing the yield and selectivity of the ketoxime.

    摘要翻译: 提供了制备酮肟的方法。 该方法包括通过使用钛 - 硅分子筛作为催化剂进行含氮化合物,酮和氧化剂的反应,以形成酮肟,从而提高酮肟的收率和选择性。

    METHOD FOR CONTINUOUSLY PREPARING CARBOXYLIC ACID ESTER
    5.
    发明申请
    METHOD FOR CONTINUOUSLY PREPARING CARBOXYLIC ACID ESTER 有权
    连续制备羧酸酯的方法

    公开(公告)号:US20130303796A1

    公开(公告)日:2013-11-14

    申请号:US13651675

    申请日:2012-10-15

    IPC分类号: C07C67/03

    摘要: A method for continuously preparing a carboxylic acid ester is disclosed. In the method of the present invention, a vertical reactor is filled with a solid catalyst, a carboxylic acid and an alcohol are introduced into a lower part of the vertical reactor, esterification is performed to form an esterized mixture, the esterized mixture is output from an upper part of the vertical reactor, and distillation is performed to isolate the carboxylic acid ester. The method of the present invention is simple, easily controlled and environmental friendly, and has significantly high conversion rate and selectivity.

    摘要翻译: 公开了连续制备羧酸酯的方法。 在本发明的方法中,将垂直反应器填充固体催化剂,羧酸和醇引入垂直反应器的下部,进行酯化以形成酯化混合物,酯化混合物从 垂直反应器的上部,并进行蒸馏以分离羧酸酯。 本发明的方法简单,容易控制,环保,转化率高,选择性好。

    METHOD FOR PREPARING EPOXIDE
    6.
    发明申请
    METHOD FOR PREPARING EPOXIDE 有权
    制备环氧化物的方法

    公开(公告)号:US20140179938A1

    公开(公告)日:2014-06-26

    申请号:US14103230

    申请日:2013-12-11

    IPC分类号: C07D301/12

    CPC分类号: C07D301/12

    摘要: A method for producing an epoxide is disclosed. The method includes performing a reaction of an olefin compound and an oxidant by using a titanium-silicon molecular sieve as a catalyst, in the presence of a silicon oxide containing an alkaline earth metal as a coagent. The selectivity and yield of epoxide are increased by using a silicon oxide containing an alkaline metal as a coagent.

    摘要翻译: 公开了一种制备环氧化物的方法。 该方法包括在含有碱土金属作为助剂的氧化硅的存在下,通过使用钛 - 硅分子筛作为催化剂进行烯烃化合物和氧化剂的反应。 通过使用含有碱金属的氧化硅作为助剂来提高环氧化物的选择性和产率。

    TITANIUM-SILICALITE MOLECULAR SIEVE, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE
    8.
    发明申请
    TITANIUM-SILICALITE MOLECULAR SIEVE, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE 有权
    钛硅酸盐分子筛,其制备方法和使用分子筛制备环己酮氧化物的方法

    公开(公告)号:US20120277468A1

    公开(公告)日:2012-11-01

    申请号:US13345089

    申请日:2012-01-06

    IPC分类号: B01J21/06 C07C249/04

    摘要: The present invention provides a titanium-silicalite molecular sieve and a method for preparing the same. The method includes the steps of preparing a mixture of a titanium source, a silicon source, a transition metal source, a template agent and water; heating the mixture to form a gel mixture; heating the gel mixture in a water bath; and calcining the gel mixture after the gel mixture in the water bath to form the titanium-silicalite molecular sieve. The present invention further provides a method for preparing cyclohexanone oxime by using the titanium-silicalite molecular sieve as the catalyst which results in high conversion rate, high selectivity and high usage efficiency of hydrogen peroxide.

    摘要翻译: 本发明提供钛 - 硅沸石分子筛及其制备方法。 该方法包括制备钛源,硅源,过渡金属源,模板剂和水的混合物的步骤; 加热混合物以形成凝胶混合物; 在水浴中加热凝胶混合物; 并在凝胶混合物中在水浴中煅烧凝胶混合物以形成钛 - 硅沸石分子筛。 本发明还提供了通过使用钛 - 硅沸石分子筛作为催化剂制备环己酮肟的方法,其导致过氧化氢的高转化率,高选择性和高使用效率。

    CATALYST COMPOSITION AND METHOD FOR PREPARING AMIDE USING THE SAME
    9.
    发明申请
    CATALYST COMPOSITION AND METHOD FOR PREPARING AMIDE USING THE SAME 有权
    催化剂组合物及其制备方法

    公开(公告)号:US20120184733A1

    公开(公告)日:2012-07-19

    申请号:US13332834

    申请日:2011-12-21

    IPC分类号: C07D201/04 B01J31/02

    摘要: The present invention provides a method for preparing an amide. The method includes the steps of performing in a reactor including a catalyst composition having a nitrogen-containing heterocyclic compound and sulfuric acid Beckman rearrangement of a ketoxime to form a product stream having the amide, wherein a molar ratio of the nitrogen-containing heterocyclic compound to the sulfuric acid is from 1:1 to 1:8; and separating an organic phase having the amide and an aqueous phase having the catalyst composition from the product stream. The present invention facilitates the regeneration of the catalyst composition with low water content, so as to increase the conversion rate of a ketoxime and the selectivity of an amide.

    摘要翻译: 本发明提供一种制备酰胺的方法。 该方法包括以下步骤:在包括具有含氮杂环化合物的催化剂组合物和酮肟的硫酸贝克曼重排反应器的反应器中进行,以形成具有酰胺的产物流,其中含氮杂环化合物与 硫酸为1:1至1:8; 并从产物流中分离出具有酰胺的有机相和具有催化剂组成的水相。 本发明有助于低水含量的催化剂组合物的再生,从而提高酮肟的转化率和酰胺的选择性。