专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07141683B2 Process for the epoxidation of olefins 有权
标题翻译：烯烃环氧化方法
公开(公告)号：US07141683B2
公开(公告)日：2006-11-28
申请号：US10428607
申请日：2003-05-02
申请人： Thomas Haas , Georg Thiele , Gerald Moroff , Norbert Ullrich , Willi Hofen , Guido Stochniol , Hubertus Eickhoff , Werner Pohl , Wolfgang Wöll , Claudia Brasse , José Berges , Percy Kampeis
发明人： Thomas Haas , Georg Thiele , Gerald Moroff , Norbert Ullrich , Willi Hofen , Guido Stochniol , Hubertus Eickhoff , Werner Pohl , Wolfgang Wöll , Claudia Brasse , José Berges , Percy Kampeis
IPC分类号： C07D301/12
CPC分类号： C07D301/12
摘要： A process for the epoxidation of olefins which includes i) reacting an olefin with hydrogen peroxide in presence of an epoxidation catalyst and an alcoholic solvent; ii) separating product olefin oxide and unreacted olefin from the reaction product of step i); iii) recovering a stream comprising the alcoholic solvent; and iv) subjecting the recovered stream of step iii) to hydrogenation.
摘要翻译：烯烃环氧化方法，其包括：i）在环氧化催化剂和醇溶剂的存在下使烯烃与过氧化氢反应; ii）从步骤i）的反应产物中分离产物烯烃氧化物和未反应的烯烃; iii）回收包含醇溶剂的料流; 和iv）使回收的步骤iii）的流经受氢化。

2. 发明授权

US07049450B2 Process for the purification of crude propene oxide 有权
标题翻译：纯丙烯氧化物的纯化方法
公开(公告)号：US07049450B2
公开(公告)日：2006-05-23
申请号：US10723270
申请日：2003-11-26
申请人： Willi Hofen , Thomas Haas , Wolfgang Wöll , Georg Thiele
发明人： Willi Hofen , Thomas Haas , Wolfgang Wöll , Georg Thiele
IPC分类号： C07D301/03 , C07D301/12 , B01D3/34
CPC分类号： C07D301/32
摘要： A process for the purification of a crude propene oxide containing methanol and acetaldehyde by a continuously operated extractive distillation using an extraction solvent lowering the volatility of methanol and feeding a compound containing an unsubstituted NH2 group capable of reacting with acetaldehyde to a distillation column at a point above the feeding point of the crude propene oxide to give a purified propene oxide containing less than 100 ppm methanol and less than 100 ppm acetaldehyde. There is also disclosed a process for the catalytic epoxidation of propene that includes this purification stage.
摘要翻译：一种通过连续操作的萃取蒸馏来纯化含有甲醇和乙醛的粗丙烯氧化物的方法，该提取溶剂使用降低甲醇挥发性的萃取溶剂，并将含有能与下列物质反应的未取代的NH 2基团的化合物乙醛在粗丙烯氧化物的进料点上方的蒸馏塔中，得到含有小于100ppm甲醇和小于100ppm乙醛的纯化丙烯氧化物。还公开了包括该纯化阶段的丙烯的催化环氧化方法。

3. 发明授权

US06838572B2 Process for the epoxidation of olefins 有权
标题翻译：烯烃环氧化方法
公开(公告)号：US06838572B2
公开(公告)日：2005-01-04
申请号：US10669993
申请日：2003-09-24
申请人： Thomas Haas , Claudia Brasse , Guido Stochniol , Willi Hofen , Wolfgang Wöll , Georg Thiele
发明人： Thomas Haas , Claudia Brasse , Guido Stochniol , Willi Hofen , Wolfgang Wöll , Georg Thiele
IPC分类号： C01B15/013 , C01B15/023 , C07D301/12
CPC分类号： C01B15/013 , C01B15/023 , C07D301/12
摘要： A continuous process for the epoxidation of olefins with hydrogen peroxide in the presence of a heterogeneous catalyst promoting the epoxidation reaction, whereby the aqueous reaction mixture contains i) an olefin; ii) hydrogen peroxide; iii) less than 100 wppm of alkali metals, earth alkali metals, both irrespective whether in ionic, complex or covalently bonded form, bases or cations of bases having a pkB of less than 4.5, or combinations thereof; and, iv) at least 100 wppm of bases or cations of bases having a pkB of at least 4.5 or combinations thereof, whereby the wppm are based on the total weight of hydrogen peroxide in the reaction mixture.
摘要翻译：在促进环氧化反应的多相催化剂的存在下用过氧化氢环氧化烯烃的连续方法，由此含水反应混合物含有i）烯烃; ii）过氧化氢; iii）小于100wppm的碱金属，碱土金属，无论是在离子，复合或共价键合的形式，碱性或pKB小于4.5的碱的阳离子，或其组合; 和iv）至少100wppm的pkB至少为4.5的碱或碱的阳离子或其组合，其中wppm是基于反应混合物中过氧化氢的总重量。

4. 发明授权

US06720436B2 Process for the epoxidation of olefins 有权
标题翻译：烯烃环氧化方法
公开(公告)号：US06720436B2
公开(公告)日：2004-04-13
申请号：US10384217
申请日：2003-03-07
申请人： Willi Hofen , Georg Thiele , Thomas Haas , Wolfgang Wöll , Percy Kampeis , Bärbel Kolbe
发明人： Willi Hofen , Georg Thiele , Thomas Haas , Wolfgang Wöll , Percy Kampeis , Bärbel Kolbe
IPC分类号： C07D30112
CPC分类号： C07D301/12
摘要： A process for the catalytic epoxidation of olefins in at least one reaction stage comprising: (a) reacting the olefin with hydrogen peroxide in an organic, water-miscible solvent in the presence of a titanium silicalite catalyst in a reactor while continuously feeding an inert gas stream into the reactor, (b) continuously removing an exit gas stream containing olefin oxide, unreacted olefin, oxygen and inert gas from the reactor, (c) bringing the exit gas stream into contact in an absorption unit with the same solvent as used in the reaction stage, (d) removing a solvent stream loaded with olefin and olefin oxide from the absorption unit and (e) discharging an gas stream containing oxygen and the inert gas from the absorption unit.
摘要翻译：一种用于在至少一个反应阶段中对烯烃进行催化环氧化的方法，包括：（a）在反应器中在钛硅沸石催化剂存在下，使烯烃与有机的水混溶性溶剂中的过氧化氢反应，同时连续进料惰性气体（b）从反应器中连续除去含有烯烃氧化物，未反应的烯烃，氧和惰性气体的出口气流，（c）使出口气流与吸收单元中的相同溶剂接触，反应阶段，（d）从吸收单元除去负载有烯烃和烯烃氧化物的溶剂流，和（e）从吸收单元排出含有氧和惰性气体的气流。

5. 发明授权

US06596883B2 Process for the epoxidation of olefins 有权
公开(公告)号：US06596883B2
公开(公告)日：2003-07-22
申请号：US10226766
申请日：2002-08-23
申请人： Willi Hofen , Thomas Haas , Wolfgang Wöll , Georg Thiele
发明人： Willi Hofen , Thomas Haas , Wolfgang Wöll , Georg Thiele
IPC分类号： C07D30132
CPC分类号： C07D301/12
摘要： A process for the working up of a product stream from the epoxidation of olefins that contains olefin, olefin oxide, water-miscible organic solvent and water, by separating this product stream into an overhead product containing olefin, olefin oxide and organic solvent, and into a bottom product containing organic solvent and water, wherein the separation takes place in a pre-evaporator with less than 10 theoretical separation stages at a pressure of 1.5 to less than 3 bar, and 20 to 60% of the total amount of organic solvent introduced with the product stream is removed with the overhead product and the balance remains in the bottom product. A process for the epoxidation of olefins that includes this working up stage is also disclosed.

6. 发明授权

US06749668B2 Process for the recovery of combustible components of a gas stream 有权
标题翻译：用于回收气流的可燃组分的方法
公开(公告)号：US06749668B2
公开(公告)日：2004-06-15
申请号：US10174549
申请日：2002-06-18
申请人： Willi Hofen , Georg Thiele , Wolfgang Wöll
发明人： Willi Hofen , Georg Thiele , Wolfgang Wöll
IPC分类号： B01D5314
CPC分类号： B01D53/14
摘要： A process for the recovery of combustible components of a gas stream containing the combustible components and oxygen by selective absorption of the combustible components in a solvent, whereby during the absorption the gas phase is dispersed in a continuous liquid phase of the solvent. In a preferred embodiment the process is applied to give a process for the epoxidation of propene with hydrogen peroxide in the alcoholic solvent in presence of a catalyst, wherein a gas stream including unreacted propene, propene oxide and oxygen from the decomposition of the hydrogen peroxide is separated from the epoxidation reaction mixture and the combustible components in said gas stream are recovered using the process as described above.
摘要翻译：通过在溶剂中选择性吸收可燃组分来回收含有可燃组分和氧的气流的可燃组分的方法，由此在吸收期间气相分散在溶剂的连续液相中。在优选的实施方案中，应用该方法以在催化剂存在下，在醇溶剂中用过氧化氢环氧化丙烯的方法，其中包含未反应的丙烯，氧化丙烯和来自过氧化氢分解的氧的气流是与环氧化反应混合物分离，并使用上述方法回收所述气流中的可燃组分。

7. 发明授权

US06600055B2 Process for the epoxidation of olefins 有权
标题翻译：烯烃环氧化方法
公开(公告)号：US06600055B2
公开(公告)日：2003-07-29
申请号：US10170233
申请日：2002-06-13
申请人： Thomas Haas , Willi Hofen , Jörg Sauer , Georg Thiele
发明人： Thomas Haas , Willi Hofen , Jörg Sauer , Georg Thiele
IPC分类号： C07D30112
CPC分类号： C07D301/12
摘要： A process for the catalytic epoxidation of olefins with hydrogen peroxide in a continuous flow reaction system, wherein the reaction mixture is passed through a fixed catalyst bed within a reactor equipped with cooling means while maintaining a temperature profile within the reactor such that the cooling medium temperature of the cooling means is at least 40° C. and the maximum temperature within the catalyst bed is 60° C. at most.
摘要翻译：一种在连续流动反应系统中用过氧化氢催化环氧化烯烃的方法，其中反应混合物在装有冷却装置的反应器中通过固定催化剂床，同时保持反应器内的温度分布，使得冷却介质温度的冷却装置至少为40℃，催化剂床内的最高温度最多为60℃。

8. 发明授权

US06608219B2 Process for the epoxidation of olefins 有权
公开(公告)号：US06608219B2
公开(公告)日：2003-08-19
申请号：US10170203
申请日：2002-06-13
申请人： Thomas Haas , Willi Hofen , Georg Thiele , Stefan Pilz , Wolfgang Woell
发明人： Thomas Haas , Willi Hofen , Georg Thiele , Stefan Pilz , Wolfgang Woell
IPC分类号： C07D30112
CPC分类号： C07D301/12
摘要： A process for the catalytic epoxidation of olefins with hydrogen peroxide in a multiphase reaction mixture comprising a liquid aqueous hydrogen peroxide rich phase containing an organic solvent having a solubility in water of at least 10% by weight at 25° C. and a liquid organic olefin rich phase.

9. 发明授权

US06596881B2 Process for the epoxidation of olefins 有权
标题翻译：烯烃环氧化方法
公开(公告)号：US06596881B2
公开(公告)日：2003-07-22
申请号：US10170196
申请日：2002-06-13
申请人： Thomas Haas , Willi Hofen , Georg Thiele , Jörg Sauer
发明人： Thomas Haas , Willi Hofen , Georg Thiele , Jörg Sauer
IPC分类号： C07D30112
CPC分类号： C07D301/12
摘要： A process for the catalytic epoxidation of olefins with hydrogen peroxide in a continuous flow reaction system, wherein the reaction mixture is passed through a fixed catalyst bed in down-flow operation mode and the reaction heat is at least partially removed during the course of the reaction.
摘要翻译：在连续流动反应系统中用过氧化氢催化环氧化烯烃的方法，其中反应混合物以下流操作模式通过固定的催化剂床，反应热在反应过程中至少部分除去。

10. 发明授权

US06670492B2 Process for the expoxidation of olefins 有权
公开(公告)号：US06670492B2
公开(公告)日：2003-12-30
申请号：US10203186
申请日：2002-10-04
申请人： Willi Hofen , Georg Thiele
发明人： Willi Hofen , Georg Thiele
IPC分类号： C07D30112
CPC分类号： C07D301/12
摘要： The invention described herein relates to a process for the catalytic epoxidation of olefins with hydrogen peroxide in a continuous flow reaction system, wherein a gaseous phase containing an olefin and a liquid phase containing the hydrogen peroxide is present in the reaction system and the gaseous phase flows in countercurrent to the liquid phase.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式