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1. 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。

2. 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。

3. 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.

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

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。

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

US07169945B2 Process for the epoxidation of olefins 有权
标题翻译：烯烃环氧化方法
公开(公告)号：US07169945B2
公开(公告)日：2007-01-30
申请号：US10724300
申请日：2003-11-26
申请人： Thomas Haas , Willi Hofen , Wolfgang Wöll , Claudia Brasse , Guido Stochniol , Norbert Ullrich
发明人： Thomas Haas , Willi Hofen , Wolfgang Wöll , Claudia Brasse , Guido Stochniol , Norbert Ullrich
IPC分类号： C07D301/12
CPC分类号： C07D301/12 , Y02P20/584
摘要： A process for the catalytic epoxidation of olefins in the presence of a titanium containing zeolite catalyst and a polar solvent whereby the deactivation of the catalyst upon recycling of the solvent has been considerably reduced. In the process one or more nitrogen containing compounds are introduced at some stage, a solvent stream is recovered, treated to contain less than 50 wppm nitrogen in the form of organic nitrogen compounds and at least a part of it is recycled to the epoxidation step. Also disclosed is a process for the catalytic epoxidation of propene which integrates the treatment and recycle of the solvent into the workup of the reaction mixture.
摘要翻译：一种在含钛沸石催化剂和极性溶剂的存在下烯烃的催化环氧化方法，从而显着减少了在溶剂再循环时催化剂失活。在该过程中，在一些阶段引入一种或多种含氮化合物，回收溶剂流，将其处理为含有少于50wppm氮的有机氮化合物形式，并将其至少一部分再循环至环氧化步骤。还公开了丙烯的催化环氧化方法，其将溶剂的处理和再循环整合到反应混合物的后处理中。

8. 发明授权

US06878836B2 Process for the epoxidation of propene 有权
标题翻译：丙烯环氧化方法
公开(公告)号：US06878836B2
公开(公告)日：2005-04-12
申请号：US10839572
申请日：2004-05-05
申请人： Thomas Haas , Claudia Brasse , Wolfgang Wöll , Willi Hofen , Bernd Jaeger , Guido Stochniol , Norbert Ullrich
发明人： Thomas Haas , Claudia Brasse , Wolfgang Wöll , Willi Hofen , Bernd Jaeger , Guido Stochniol , Norbert Ullrich
IPC分类号： C07D301/12 , C07D303/04
CPC分类号： C07D303/04 , C07D301/12 , Y02P20/584
摘要： A process for the continuous epoxidation of propene with hydrogen peroxide in the presence of a titanium silicalite catalyst and a methanol solvent, wherein the catalyst is periodically regenerated by washing with a methanol solvent at a temperature of at least 100° C. and the epoxidation reaction is carried out for periods of more than 300 h between two regeneration steps.
摘要翻译：一种在钛硅沸石催化剂和甲醇溶剂存在下用过氧化氢连续环氧化丙烯的方法，其中催化剂通过在至少100℃的温度下用甲醇溶剂洗涤并周期性地再生，并且环氧化反应在两个再生步骤之间进行超过300小时的时间。

9. 发明授权

US10125108B2 Process for the epoxidation of propene 有权
公开(公告)号：US10125108B2
公开(公告)日：2018-11-13
申请号：US15570167
申请日：2016-04-19
申请人： Robert Jahn , Wolfgang Wöll , Bernd Jaeger , Matthias Pascaly
发明人： Robert Jahn , Wolfgang Wöll , Bernd Jaeger , Matthias Pascaly
IPC分类号： C07D301/12 , C07D303/04 , B01D3/34 , B01D3/42 , B01D19/04 , B01J29/89 , C07D301/36
摘要： In a process for the epoxidation of propene, comprising the steps: reacting propene with hydrogen peroxide in the presence of a titanium silicalite catalyst and a methanol solvent; separating non-reacted propene and propene oxide from the resulting reaction mixture to provide a solvent mixture comprising methanol and water in a combined amount of at least 90% by weight; and feeding this solvent mixture as a feed stream to a continuously operated methanol distillation column at a feed point in the middle section of said column to provide an overhead product comprising at least 90% by weight methanol and a bottoms product comprising at least 90% by weight water; the addition of a liquid defoamer, having a solubility in the feed stream of less than 10 mg/kg at 25° C. and a surface tension at the liquid air interface of less than 22 mN/m at 20° C., at or above the feed point in an amount exceeding the solubility of the liquid defoamer in the feed stream suppresses foam formation in the methanol distillation column.

10. 发明授权

US07722847B2 Aqueous hydrogen peroxide solutions and method of making same 有权
标题翻译：过氧化氢水溶液及其制备方法
公开(公告)号：US07722847B2
公开(公告)日：2010-05-25
申请号：US10669978
申请日：2003-09-24
申请人： Thomas Haas , Claudia Brasse , Guido Stochniol , Jürgen Glenneberg , Wolfgang Wöll
发明人： Thomas Haas , Claudia Brasse , Guido Stochniol , Jürgen Glenneberg , Wolfgang Wöll
IPC分类号： C01B15/023 , C01B15/037
CPC分类号： C01B15/013 , C01B15/023 , C07D301/12
摘要： An aqueous hydrogen peroxide solution containing i) less than 50 wppm alkali metals, alkaline earth metals or combinations thereof in total, irrespective whether the alkali or alkaline earth metals are present in cationic or complex form; ii) less than 50 wppm of amines having a pkB of less than 4.5 or the corresponding protonated compounds in total; and iii) at least 100 wppm anions or compounds that can dissociate to form anions in total, where the wppm are based on the weight of hydrogen peroxide and the concentration of hydrogen peroxide is more than 50% by weight based on the total weight of the hydrogen peroxide solution. A process for preparation of said hydrogen peroxide solution and the use of said solution in a process for epoxidation of olefins is also disclosed.
摘要翻译：含有i）含有i）总计少于50wppm的碱金属，碱土金属或其组合的过氧化氢水溶液，不论碱金属或碱土金属是以阳离子或复合形式存在; ii）小于50wppm的pkB小于4.5的胺或相应的质子化合物总计; 和iii）至少100wppm的阴离子或化合物，其可以离解以形成阴离子，其中wppm基于过氧化氢的重量，并且过氧化氢的浓度基于总重量的50重量％过氧化氢溶液。还公开了制备所述过氧化氢溶液的方法和在烯烃环氧化方法中使用所述溶液。

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