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公开(公告)号：US06888013B2
公开(公告)日：2005-05-03
申请号：US10343832
申请日：2001-08-06
IPC分类号： B01D3/00 , C07D303/04 , B01J23/44 , C01B15/013 , C01B15/029 , C07B61/00 , C07D301/12 , C07D301/06
CPC分类号： C01B15/013 , C01B15/029 , C07D301/12 , Y02P20/125
摘要： The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen and an inert gas, in the presence of a bimetallic catalyst based on palladium and platinum as active components; (b) putting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) in contact with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, in order to obtain a reaction mixture containing the epoxide corresponding to the olefin, water and alcoholic solvent; (c) treating the alcoholic stream leaving step (b), after separation of the epoxide, in order to eliminate the nitrogenated compounds present; (d) feeding the alcoholic solvent obtained in (c) to step (a). The process may comprise a further step (e), wherein the raw hydro-alcoholic mixture of the flash column bottom, is used, when necessary, for diluting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) to the value required by the epoxidation plant. The process operates under high safety conditions and with a high overall efficiency, in terms of productivity and selectivity.
摘要翻译： 本发明涉及连续制备环氧化物的一体化方法，其包括：（a）使用含氢，氧气的气流制备浓度超过3重量％的过氧化氢的醇或醇 - 醇溶液 和在基于钯和铂作为活性组分的双金属催化剂存在下的惰性气体; （b）在悬浮在反应溶剂中的环氧化催化剂的存在下，将步骤（a）中得到的过氧化氢的醇或醇 - 醇溶液与烯烃和缓冲剂接触，以获得反应混合物 含有对应于烯烃，水和醇溶剂的环氧化物; （c）在分离环氧化物之后处理离开步骤（b）的醇流，以消除存在的含氮化合物; （d）将（c）中获得的醇溶剂进料到步骤（a）。 该方法可以包括进一步的步骤（e），其中使用闪蒸塔底的原料水 - 醇混合物，必要时，将步骤（a）中获得的过氧化氢的醇或醇 - 醇溶液稀释至 环氧化厂所要求的价值。 该工艺在高安全性条件下运行，并且在生产率和选择性方面具有较高的总体效率。
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公开(公告)号：US06541648B1
公开(公告)日：2003-04-01
申请号：US10088899
申请日：2002-06-26
IPC分类号： C07D30112
CPC分类号： C07D301/12 , C01B15/029 , Y02P20/125
摘要： The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen and an inert gas, in the presence of a bimetallic catalyst based on palladium and platinum as active components; (b) putting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) in contact with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, in order to obtain a reaction mixture containing the epoxide corresponding to the olefin, water and the alcoholic solvent; (c) treating the alcoholic stream leaving step (b), after separation of the epoxide, in order to eliminate the nitrogenated compounds present; (d) feeding the alcoholic solvent obtained in (c) to step (a). A part of the solvent obtained in (c) can be used, when necessary, for diluting the hydro-alcoholic solution of hydrogen peroxide obtained in step (a) to the value required by the epoxidation plant. The process operates under high safety conditions and with a high overall efficiency, in terms of productivity and selectivity.
摘要翻译： 本发明涉及连续制备环氧化物的一体化方法，其包括：（a）使用含氢，氧气的气流制备浓度超过3重量％的过氧化氢的醇或醇 - 醇溶液 和在基于钯和铂作为活性组分的双金属催化剂存在下的惰性气体; （b）在悬浮在反应溶剂中的环氧化催化剂的存在下，将步骤（a）中得到的过氧化氢的醇或醇 - 醇溶液与烯烃和缓冲剂接触，以获得反应混合物 含有对应于烯烃，水和醇溶剂的环氧化物; （c）在分离环氧化物之后处理离开步骤（b）的醇流，以消除存在的含氮化合物; （d）将（c）中获得的醇溶剂进料到步骤（a）。 必要时可以使用（c）中得到的溶剂的一部分，将步骤（a）中得到的过氧化氢水溶液稀释至环氧化装置所要求的值。 该工艺在高安全性条件下运行，并且在生产率和选择性方面具有较高的总体效率。
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公开(公告)号：US07138534B2
公开(公告)日：2006-11-21
申请号：US10344441
申请日：2001-08-13
申请人： Anna Forlin , Paolo Tegon , Giuseppe Paparatto
发明人： Anna Forlin , Paolo Tegon , Giuseppe Paparatto
IPC分类号： C07D301/12
CPC分类号： C07D303/04 , C07D301/12
摘要： A process for the continuous production of an olefinic oxide such as propylene oxide by direct catalytic oxidation of an olefin with hydrogen peroxide. The process involves successive reaction, distillation, decomposition, phase, separation, condensation and distillation with recycle of various streams to provide improved catalyst life and reaction selectivity.
摘要翻译： 通过用过氧化氢直接催化氧化烯烃来连续生产环氧丙烷等氧化烯的方法。 该方法包括连续反应，蒸馏，分解，相分离，缩合和蒸馏，各种流的再循环以提供改善的催化剂寿命和反应选择性。
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公开(公告)号：US06300506B1
公开(公告)日：2001-10-09
申请号：US09626456
申请日：2000-07-26
申请人： Giuseppe Paparatto , Anna Forlin , Paolo Tegon
发明人： Giuseppe Paparatto , Anna Forlin , Paolo Tegon
IPC分类号： C07D30112
CPC分类号： C07D301/12 , Y02P20/584
摘要： A continuous process is described for the preparation of olefin oxides by direct epoxidation of an olefin with hydrogen peroxide, or compounds capable of producing hydrogen peroxide under the reaction conditions, in a solvent medium, in the presence of a catalytic system consisting of a zeolite containing titanium and a buffer system with a pH controlled within the values of 5.5 to 8.0, consisting of a nitrogenated base and a salt thereof with an organic or inorganic acid. The process allows high conversions and selectivities of the olefin into the corresponding oxide with a catalytic activity stable over a period of time.
摘要翻译： 描述了一种连续方法，用于通过在溶剂介质中，在由含有沸石的沸石组成的催化剂体系的存在下，用过氧化氢或能够在反应条件下能够产生过氧化氢的化合物直接环氧化烯烃氧化物 钛和缓冲体系，其pH值控制在5.5至8.0的范围内，由含氮碱和其与有机或无机酸的盐组成。 该方法允许烯烃的高转化率和选择性进入相应的氧化物，催化活性在一段时间内稳定。
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公开(公告)号：US07442817B1
公开(公告)日：2008-10-28
申请号：US09627306
申请日：2000-07-27
申请人： Giuseppe Paparatto , Anna Forlin , Paolo Tegon
发明人： Giuseppe Paparatto , Anna Forlin , Paolo Tegon
IPC分类号： C07D301/12
CPC分类号： C07D301/12
摘要： A process in continuous is described for the preparation of oxides of olefins by the direct epoxidation of an olefin with hydrogen peroxide, or compounds capable of producing hydrogen peroxide under the reaction conditions, in a solvent medium, in the presence of a catalytic system consisting of a zeolite containing titanium and a nitrogenated organic base having formula (I).The process allows the production of high conversions and selectivities of the olefin into the corresponding oxide with a stable catalytic activity over a period of time.
摘要翻译： 描述了连续的方法，通过在溶剂介质中，在催化体系存在下，用过氧化氢直接环氧化烯烃或在反应条件下能够产生过氧化氢的化合物来制备烯烃氧化物，催化体系由 含有钛的沸石和具有式（I）的氮化有机碱。 该方法允许将烯烃的高转化率和选择性在一段时间内以稳定的催化活性生成相应的氧化物。
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公开(公告)号：US06630118B2
公开(公告)日：2003-10-07
申请号：US09870826
申请日：2001-06-01
IPC分类号： C01B15026
CPC分类号： C01B15/029 , B01J23/44 , B01J37/031 , B01J37/16 , B01J37/18 , Y10S502/523
摘要： A bimetallic catalyst is obtained by dispersing, in sequence and alternating, the precursors of the single metal components of the catalyst on a carrier. A process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of the bimetallic catalyst.
摘要翻译： 通过将催化剂的单一金属组分的前体按顺序并交替地分散在载体上来获得双金属催化剂。 在双金属催化剂存在下，通过氢与氧在含有卤化助催化剂和酸促进剂的溶剂介质中直接反应来合成过氧化氢的方法。
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公开(公告)号：US4788354A
公开(公告)日：1988-11-29
申请号：US19630
申请日：1987-02-27
申请人： Giuseppe Paparatto , Marco Saetti
发明人： Giuseppe Paparatto , Marco Saetti
IPC分类号： B01J29/00 , B01J29/08 , C07B61/00 , C07C17/00 , C07C17/12 , C07C17/156 , C07C25/02 , C07C67/00 , C07C17/15
CPC分类号： C07C17/156
摘要： A method for the synthesis of iodobenzene by iodination, in the gaseous phase, of benzene with iodine, in the presence of a zeolitic catalyst, selected from the group comprising the zeolites of X type or of Y type, characterized in that said iodination is an oxidative one and that said zeolites are in a form different from the acid (H) form.
摘要翻译： 在沸石催化剂存在下，在选自X型或Y型沸石的组中，用碘在气相中，用碘碘化合成碘苯的方法，其特征在于所述碘化为 所述沸石是不同于酸（H）形式的形式。
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公开(公告)号：US07122501B2
公开(公告)日：2006-10-17
申请号：US10396503
申请日：2003-03-26
CPC分类号： C01B15/029 , B01J23/44 , B01J37/031 , B01J37/16 , B01J37/18 , Y10S502/523
摘要： A description follows of a bimetallic catalyst, obtained by dispersing in sequence and alternating the precursors of the single metal components of the catalyst on a carrier, and a process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of said catalyst.
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公开(公告)号：US06649140B2
公开(公告)日：2003-11-18
申请号：US09870494
申请日：2001-06-01
IPC分类号： B01J2118
CPC分类号： C01B15/029
摘要： A process is described for the continuous production of alcoholic or hydro-alcoholic solutions of hydrogen peroxide in a concentration ranging from 2 to 10% by weight and their direct use in oxidation processes. The process operates under high safety conditions and with a high productivity and molar selectivity towards the formation of H2O2.
摘要翻译： 描述了连续生产浓度范围为2至10重量％的过氧化氢的醇或水醇溶液并且其直接用于氧化过程的方法。该方法在高安全性条件下以高生产率和 对H2O2形成的摩尔选择性。
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公开(公告)号：US4894478A
公开(公告)日：1990-01-16
申请号：US223403
申请日：1988-07-25
IPC分类号： B01J29/04 , B01J21/06 , B01J29/89 , C07B31/00 , C07B43/00 , C07B61/00 , C07C20060101 , C07C67/00 , C07C239/00 , C07C249/04 , C07C251/32 , C07C251/34 , C07C251/38 , C07C251/42 , C07C251/44
CPC分类号： C07C249/04 , B01J29/89 , C07C2101/14
摘要： The invention relates to a process of producing ketoximes, characterized in that a secondary alcohol, corresponding to the desired ketoxime, is partially oxidated in the liquid phase with O.sub.2, an oxidated mixture being thereby formed, which contains an excess of unreacted alcohol, the ketone corresponding to said alcohol, and H.sub.2 O.sub.2, and that said oxidated mixture is directly reacted with NH.sub.3 in the liquid phase (without isolating the alcohol, the ketone and H.sub.2 O.sub.2) in the presence of an ammoximation catalyst.
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