公开(公告)号：US20130211112A1

公开(公告)日：2013-08-15

申请号：US13878659

申请日：2011-10-11

申请人： Hua Li ,  Min Lin ,  Xiaoju Wu ,  Wei Wang ,  Chijian He ,  Jizao Gao ,  Xingtian Shu ,  Shuanghua Wan ,  Bin Zhu

发明人： Hua Li ,  Min Lin ,  Xiaoju Wu ,  Wei Wang ,  Chijian He ,  Jizao Gao ,  Xingtian Shu ,  Shuanghua Wan ,  Bin Zhu

IPC分类号： C07D301/12

CPC分类号： C07D301/12 ,  C07D303/04

摘要： A process for producing an alkylene oxide by olefin epoxidation, wherein said process comprises the steps of: (1) in a first olefin epoxidation condition, in the presence of a first solid catalyst, a first mixed stream containing a solvent, an olefin and H2O2 is subjected to an epoxidation in one or more fixed bed reactors and/or one or more moving bed reactors until the conversion of H2O2 reaches 50%-95%, then, optionally, the resulting reaction mixture obtained in the step (1) is subjected to a separation to obtain a first stream free of H2O2 and a second stream containing the unreacted H2O2, and the olefin is introduced to the second stream to produce a second mixed stream, or optionally, the olefin is introduced to the reaction mixture obtained in the step (1) to produce a second mixed stream; (2) in a second olefin epoxidation condition, the reaction mixture obtained in the step (1) or the second mixed stream obtained in the step (1) and a second solid catalyst are introduced to one or more slurry bed reactors to conduct an epoxidation until the total conversion of H2O2 reaches 98% or more, with a proviso that said process for producing the alkylene oxide by olefin epoxidation has an selectivity for the alkylene oxide of 90% or more.The process of the present invention combines the slurry bed reactor with the fixed bed reactor and/or the moving bed reactor so as to overcome the disadvantages of the low conversion of H2O2 in the case that only the fixed bed reactor and/or the moving bed reactor are used, and the low selectivity for the target alkylene oxide in the case that only the slurry bed reactor is used.

摘要翻译： 一种通过烯烃环氧化生产烯化氧的方法，其中所述方法包括以下步骤：（1）在第一烯烃环氧化条件下，在第一固体催化剂存在下，将含有溶剂，烯烃和H 2 O 2的第一混合物流 在一个或多个固定床反应器和/或一个或多个移动床反应器中进行环氧化，直到H 2 O 2的转化率达到50％-95％，然后，任选地，将在步骤（1）中获得的所得反应混合物 以分离以获得不含H 2 O 2的第一物流和含有未反应的H 2 O 2的第二物流，并将烯烃引入第二物流以产生第二混合物流，或任选地将烯烃引入到 步骤（1）以产生第二混合流; （2）在第二烯烃环氧化条件下，将步骤（1）中获得的反应混合物或步骤（1）中获得的第二混合物流和第二固体催化剂引入一个或多个淤浆床反应器中进行环氧化 直到H 2 O 2的总转化率达到98％以上，条件是通过烯烃环氧化生产环氧烷烃的方法对环氧烷烃的选择性为90％以上。 本发明的方法将淤浆床反应器与固定床反应器和/或移动床反应器结合，以克服在只有固定床反应器和/或移动床的情况下H 2 O 2转化率低的缺点 使用反应器，在仅使用浆料床反应器的情况下对目标烯化氧的选择性低。

公开(公告)号：US08859791B2

公开(公告)日：2014-10-14

申请号：US13878659

申请日：2011-10-11

申请人： Hua Li ,  Min Lin ,  Xiaoju Wu ,  Wei Wang ,  Chijian He ,  Jizao Gao ,  Xingtian Shu ,  Shuanghua Wan ,  Bin Zhu

发明人： Hua Li ,  Min Lin ,  Xiaoju Wu ,  Wei Wang ,  Chijian He ,  Jizao Gao ,  Xingtian Shu ,  Shuanghua Wan ,  Bin Zhu

IPC分类号： C07D301/12 ,  C07D303/04

CPC分类号： C07D301/12 ,  C07D303/04

摘要： A process for producing an alkylene oxide by olefin epoxidation, wherein said process comprises the steps of: (1) in a first olefin epoxidation condition, in the presence of a first solid catalyst, a first mixed stream containing a solvent, an olefin and H2O2 is subjected to an epoxidation in one or more fixed bed reactors and/or one or more moving bed reactors until the conversion of H2O2 reaches 50%-95%, then, optionally, the resulting reaction mixture obtained in the step (1) is subjected to a separation to obtain a first stream free of H2O2 and a second stream containing the unreacted H2O2, and the olefin is introduced to the second stream to produce a second mixed stream, or optionally, the olefin is introduced to the reaction mixture obtained in the step (1) to produce a second mixed stream; (2) in a second olefin epoxidation condition, the reaction mixture obtained in the step (1) or the second mixed stream obtained in the step (1) and a second solid catalyst are introduced to one or more slurry bed reactors to conduct an epoxidation until the total conversion of H2O2 reaches 98% or more, with a proviso that said process for producing the alkylene oxide by olefin epoxidation has an selectivity for the alkylene oxide of 90% or more.The process of the present invention combines the slurry bed reactor with the fixed bed reactor and/or the moving bed reactor so as to overcome the disadvantages of the low conversion of H2O2 in the case that only the fixed bed reactor and/or the moving bed reactor are used, and the low selectivity for the target alkylene oxide in the case that only the slurry bed reactor is used.

摘要翻译： 一种通过烯烃环氧化生产烯化氧的方法，其中所述方法包括以下步骤：（1）在第一烯烃环氧化条件下，在第一固体催化剂存在下，将含有溶剂，烯烃和H 2 O 2的第一混合物流 在一个或多个固定床反应器和/或一个或多个移动床反应器中进行环氧化，直到H 2 O 2的转化率达到50％-95％，然后，任选地，将在步骤（1）中获得的所得反应混合物 以分离以获得不含H 2 O 2的第一物流和含有未反应的H 2 O 2的第二物流，并将烯烃引入第二物流以产生第二混合物流，或任选地将烯烃引入到 步骤（1）以产生第二混合流; （2）在第二烯烃环氧化条件下，将步骤（1）中获得的反应混合物或步骤（1）中获得的第二混合物流和第二固体催化剂引入一个或多个淤浆床反应器中进行环氧化 直到H 2 O 2的总转化率达到98％以上，条件是通过烯烃环氧化生产环氧烷烃的方法对环氧烷烃的选择性为90％以上。 本发明的方法将淤浆床反应器与固定床反应器和/或移动床反应器结合，以克服在只有固定床反应器和/或移动床的情况下H 2 O 2转化率低的缺点 使用反应器，在仅使用浆料床反应器的情况下对目标烯化氧的选择性低。

公开(公告)号：US09221039B2

公开(公告)日：2015-12-29

申请号：US13878662

申请日：2011-10-11

申请人： Min Lin ,  Hua Li ,  Wei Wang ,  Chijian He ,  Xiaoju Wu ,  Jizao Gao ,  Xichun She ,  Jun Long ,  Qingling Chen

发明人： Min Lin ,  Hua Li ,  Wei Wang ,  Chijian He ,  Xiaoju Wu ,  Jizao Gao ,  Xichun She ,  Jun Long ,  Qingling Chen

IPC分类号： B01J29/89 ,  C07D301/12 ,  B01J35/00

CPC分类号： B01J29/89 ,  B01J35/002 ,  B01J2229/32 ,  B01J2229/34 ,  B01J2229/42 ,  C07D301/12

摘要： Disclosed herein are a catalyst, a preparation process thereof, and a process of epoxidizing olefin using the catalyst. The catalyst contains a binder and a titanium silicate as specified. The catalyst disclosed herein has high strength, and shows high catalytic activity in the epoxidation of olefins.

摘要翻译： 本文公开了催化剂，其制备方法和使用该催化剂使烯烃环氧化的方法。 催化剂含有粘合剂和钛硅酸盐。 本文公开的催化剂具有高强度，并且在烯烃的环氧化中显示出高的催化活性。

公开(公告)号：US20130253208A1

公开(公告)日：2013-09-26

申请号：US13878662

申请日：2011-10-11

申请人： Min Lin ,  Hua Li ,  Wei Wang ,  Chijian He ,  Xiaoju Wu ,  Jizao Gao ,  Xichun She ,  Jun Long ,  Qingling Chen

发明人： Min Lin ,  Hua Li ,  Wei Wang ,  Chijian He ,  Xiaoju Wu ,  Jizao Gao ,  Xichun She ,  Jun Long ,  Qingling Chen

IPC分类号： B01J29/89 ,  C07D301/12

CPC分类号： B01J29/89 ,  B01J35/002 ,  B01J2229/32 ,  B01J2229/34 ,  B01J2229/42 ,  C07D301/12

摘要： The present invention provides a catalyst and the preparation process thereof and a process of epoxidising olefin using the catalyst. The catalyst contains a binder and a titanium silicate, the binder being an amorphous silica, the titanium silicate having a MFI structure, and the crystal grain of the titanium silicate having a hollow structure, with a radial length of 5-300 nm for the cavity portion of the hollow structure, wherein the adsorption capacity of benzene measured for the titanium silicate under the conditions of 25 degrees C., P/P0=0.10 and 1 h of adsorption time is at least 70 mg/g, and there is a hysteresis loop between the adsorption isotherm and the desorption isotherm for nitrogen adsorption by the molecular sieve at a low temperature; wherein based on the total amount of the catalyst, the content of the binder is 3-15 wt %, and the content of the titanium silicate is 85-97 wt %; and the catalyst has a crushing strength value of not less than 60 N/cm measured according to GB3635-1983 standard method. The catalyst according to the present invention has high strength, and shows high catalytic activity in the epoxidation of olefins.

摘要翻译： 本发明提供一种催化剂及其制备方法以及使用该催化剂使烯烃环氧化的方法。 催化剂含有粘合剂和钛硅酸盐，粘合剂是无定形二氧化硅，具有MFI结构的硅酸钛和具有中空结构的硅酸钛的晶粒，其中腔的径向长度为5-300nm 部分中空结构，其中在25℃，P / P0 = 0.10和1小时的吸附时间条件下测量的硅酸钛的苯的吸附能力为至少70mg / g，并且存在滞后 吸附等温线和分子筛在低温下氮吸附的解吸等温线之间的循环; 其中，基于催化剂的总量，粘合剂的含量为3〜15重量％，硅酸钛的含量为85〜97重量％。 催化剂的破碎强度值按照GB3635-1983标准方法测定，不小于60N / cm。 根据本发明的催化剂具有高强度，并且在烯烃的环氧化中显示出高的催化活性。