公开(公告)号：US5969205A

公开(公告)日：1999-10-19

申请号：US137860

申请日：1998-08-21

Applicant: Arnd Stuwe ,  Jorg-Uwe Michel ,  Matthias Baum ,  Franz Kaledat

Inventor： Arnd Stuwe ,  Jorg-Uwe Michel ,  Matthias Baum ,  Franz Kaledat

IPC: C07C5/25 ,  C07C5/23

CPC classification number: C07C5/2556 ,  C07C2521/04 ,  C07C2523/40 ,  C07C2523/42 ,  C07C2523/44

Abstract: C.sub.4 -C.sub.6 -alkenes having an internal double bond can be produced by hydroisomerization of C.sub.4 -C.sub.6 -alkenes having a terminal double bond in the presence of H.sub.2 on a catalyst having a content of a noble metal of group VIII of the Periodic Table of the Elements (Mendeleev), if C.sub.4 -C.sub.6 -alkenes having a terminal double bond are fed into a hydroisomerization reactor after preheating, as such or in a mixture with other hydrocarbons, and the reaction product is divided into a work-up stream and a recycle stream. The recycle stream is recycled to the inlet of the hydroisomerization reactor and is used there as feed together with the C.sub.4 -C.sub.6 -alkenes having a terminal double bond or with the hydrocarbon stream comprising the C.sub.4 -C.sub.6 -alkenes having a terminal double bond and with the H.sub.2.

Abstract translation: 具有内部双键的C 4 -C 6 - 烯烃可以通过在H 2存在下具有末端双键的C 4 -C 6 - 烯烃在具有元素周期表第VIII族贵金属的催化剂上进行加氢异构化来制备 元素（门德列夫），如果具有末端双键的C 4 -C 6 - 烯烃预热，或者与其它烃类混合，则将其加入加氢异构化反应器中，并将反应产物分成后处理流和再循环 流。 再循环流再循环到加氢异构化反应器的入口，并在那里作为进料与具有末端双键的C 4 -C 6烯烃一起使用，或者烃类物流包含具有末端双键的C 4 -C 6 - 烯烃和与 H2。

公开(公告)号：US6087299A

公开(公告)日：2000-07-11

申请号：US237113

申请日：1999-01-26

Applicant: Joachim Grub ,  Werner Volprecht ,  Matthias Baum ,  Alfred Reimer

Inventor： Joachim Grub ,  Werner Volprecht ,  Matthias Baum ,  Alfred Reimer

IPC: B01J23/50 ,  B01J23/66 ,  B01J37/00 ,  B01J37/02 ,  B01J37/08 ,  C07B61/00 ,  C07D301/10 ,  B01J23/02 ,  C07D301/03 ,  C07D303/04

CPC classification number: C07D301/10 ,  B01J23/50 ,  B01J23/66 ,  B01J37/0203 ,  B01J37/08

Abstract: The present invention relates to silver-containing and optionally promoter-containing supported catalysts and catalyst intermediates, processes for their preparation and their use for preparing alkylene oxides by oxidation of alkenes with oxygen. The catalysts are prepared by treatment of a support with a lactic acid containing silver ions, nitrate ions and optionally promoter metal ions, drying, predecomposition in a virtually oxygen-free atmosphere and subsequent activation by heating in an oxygen-containing atmosphere while precisely controlling the temperature conditions and the feeding-in of oxygen. The catalyst intermediates obtainable by treatment, drying and only predecomposition can be activated in a temporally and physically separate process step to form the actual catalysts. Suitable promoters are alkaline earth metal compounds and/or alkali metal compounds. High activities and high selectivities are achieved when using the catalysts of the invention for preparing alkylene oxides.

Abstract translation: 本发明涉及含银和任选的含促进剂的载体催化剂和催化剂中间体，其制备方法及其用于通过用氧氧化烯烃制备环氧烷烃的用途。 通过用含有银离子，硝酸根离子和任选促进剂金属离子的乳酸处理载体来制备催化剂，在几乎无氧气氛中干燥，预分解，随后通过在含氧气氛中加热活化，同时精确控制 温度条件和氧气的摄取。 通过处理，干燥和仅预分解可获得的催化剂中间体可以在时间和物理上分离的工艺步骤中活化以形成实际的催化剂。 合适的助催化剂是碱土金属化合物和/或碱金属化合物。 当使用本发明的催化剂制备环氧烷时，可实现高活性和高选择性。