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1.发明授权Process for purifying ethylene glycol carbonate (EGC) by adsorption on activated carbon 失效通过在活性炭上吸附净化乙二醇碳酸酯（EGC）的方法
公开(公告)号：US5489696A
公开(公告)日：1996-02-06
申请号：US421726
申请日：1995-04-13
IPC分类号： B01D15/00 , C07C68/08 , C07C69/08 , C07C69/96 , C07D317/08
CPC分类号： C07C68/08
摘要： Ethylene glycol carbonate (EGC) can be obtained in purified form from contaminated material which contains impurities from the production or work-up process, by subjecting it to treatment with activated carbon. The treatment is carried out at 40.degree.-250.degree. C. and at 1-200 bar. The activated carbon has a BET surface area of 200-3,000 m.sup.2 /g.
摘要翻译： 乙二醇碳酸酯（EGC）可以从生产或后处理过程中含有杂质的污染物质中以活性炭处理而得到。 处理在40°-250℃和1-200巴下进行。 活性炭的BET表面积为200-3000m 2 / g。
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公开(公告)号：US5449791A
公开(公告)日：1995-09-12
申请号：US251456
申请日：1994-05-31
IPC分类号： C07B61/00 , C07C68/04 , C07C69/96 , C07D317/36 , C07D317/38
CPC分类号： C07D317/36 , Y02P20/142
摘要： A process is described for the catalytic preparation of propylene glycol carbonate (PGC) by reacting propylene oxide (POX) and CO.sub.2 in PGC as reaction medium at elevated temperature and elevated pressure and separating off from the catalyst the PGC formed. The process is carried out continuously under adiabatic temperature conditions. Per unit of time, PGC as reaction medium flows into the reactor at 7 to 350 times the amount of the PGC formed per unit of time. At all points of the reactor a CO.sub.2 excess is maintained over the other reaction partner POX. Of the effluent reaction mixture, 80 to 98% by weight are returned to the entrance of the reactor, while the remainder is worked up to give PGC. The sensible heat of the reaction product resulting from the adiabatic temperature conditions can be used for the work-up.
摘要翻译： 描述了通过在PGC中将环氧丙烷（POX）和CO 2作为反应介质在升高的温度和升高的压力下反应制备丙二醇碳酸酯（PGC）的方法，并从形成的PGC与催化剂分离。 该过程在绝热温度条件下连续进行。 每单位时间，作为反应介质的PGC以每单位时间形成的PGC的量的7〜350倍流入反应器。 在反应器的所有点上，超过另一个反应配偶体POX的CO 2过剩。 在流出物反应混合物中，80-98重量％返回到反应器的入口，其余部分被处理得到PGC。 由绝热温度条件产生的反应产物的显热可用于后处理。
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3.发明授权
公开(公告)号：US5508442A
公开(公告)日：1996-04-16
申请号：US251229
申请日：1994-05-31
IPC分类号： C07C68/04 , C07C69/96 , C07D317/36 , C07D317/38 , C07D321/00 , C07D323/00
CPC分类号： C07D317/36 , C07D317/38 , Y02P20/142
摘要： A bubble column reactor is described which is characterized by a slenderness ratio at a ratio of height to diameter of 2 to 50, a feed, at the bottom end of the bubble column, for the ethylene glycol carbonate (EGG) or propylene glycol carbonate (PGC) already present serving as reaction medium, one or more metering sites for the starting materials CO.sub.2 and ethylene oxide (EOX) or propylene oxide (POX) above the feed for the reaction medium, an outlet for the reaction mixture at the top end of the bubble column, a dividing apparatus connected thereto for the reaction mixture flowing off for dividing it into reaction mixture to be taken off and worked up on the one hand and reaction mixture to be recycled on the other hand and additionally a return line to the feed for the reaction mixture to be recycled. This bubble column reactor can be advantageously used in a process for the continuous preparation of EGG or PGC which is carried out in the temperature range from 100.degree. to 200.degree. C., in the pressure range from 5 to 200 bar and at a molar ratio of 1.01 to 1.5 mol of CO.sub.2 per mol of alkylene oxide in EGG or PGC already present as reaction medium in an amount which is 7 to 350 times that of the newly formed EGG or PGC.
摘要翻译： 描述了泡罩塔反应器，其特征在于高度与直径的比率为2-50的细长比，在气泡塔的底端，乙二醇碳酸酯（EGG）或丙二醇碳酸酯（ PGC）作为反应介质，用于反应介质的进料上方的原料CO 2和环氧乙烷（EOX）或环氧丙烷（POX）的一个或多个测量位点，反应混合物的顶部出口 气泡塔，连接到其上的分离装置，用于将反应混合物流出以将其分离成反应混合物，一方面将其除去和处理，另一方面将反应混合物再循环，另外还有一个到进料的回流管 使反应混合物回收。 该气泡塔式反应器可有利地用于连续制备EGG或PGC的方法中，该方法在100至200℃的温度范围内，压力范围为5至200巴，摩尔比 以EGG或PGC中的环氧烷的摩尔量为1.01〜1.5摩尔，作为反应介质，其量为新形成的EGG或PGC的7〜350倍。
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公开(公告)号：US5350862A
公开(公告)日：1994-09-27
申请号：US984789
申请日：1992-12-03
申请人： Paul Wagner , Hans-Josef Buysch , Alexander Klausener , Franz-Josef Mais , Christine Mendoza-Frohn
发明人： Paul Wagner , Hans-Josef Buysch , Alexander Klausener , Franz-Josef Mais , Christine Mendoza-Frohn
IPC分类号： C07B61/00 , C07D317/38 , C07D317/36
CPC分类号： C07D317/38
摘要： A process is described for the catalytic preparation of ethylene glycol carbonate by reaction of ethylene oxide and CO.sub.2 in ethylene glycol carbonate as the reaction medium at elevated temperature and at elevated pressure with work-up by distillation to separate the resulting ethylene glycol carbonate from the catalyst. The process is carried out continuously under adiabatic temperature conditions. Per unit of time, ethylene glycol carbonate as reaction medium runs into the reactor in a amount 10 to 120 times that of ethylene glycol carbonate formed per unit of time. A CO.sub.2 excess over the other reaction partner ethylene oxide is maintained at all sites of the reactor. 80 to 98% by weight of the reaction mixture flowing out is returned to the inlet of the reactor, while the remainder is worked up by distillation to give ethylene glycol carbonate. The sensible heat produced in the reaction product as a result of the adiabatic temperature conditions, is used for the work-up.
摘要翻译： 描述了通过环氧乙烷和CO 2在乙二醇碳酸酯中作为反应介质在升高的温度和升高的压力下反应制备乙二醇碳酸酯的方法，通过蒸馏进行后处理以将所得的乙二醇碳酸酯与催化剂分离 。 该过程在绝热温度条件下连续进行。 每单位时间，作为反应介质的乙二醇碳酸酯以每单位时间形成的乙二醇碳酸酯的量的10至120倍的量进入反应器。 在反应器的所有位置保持超过其他反应对象环氧乙烷的二氧化碳剩余量。 将流出的反应混合物的80〜98重量％返回到反应器的入口，其余部分通过蒸馏处理得到乙二醇碳酸酯。 作为绝热温度条件的结果，在反应产物中产生的显热用于后处理。
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公开(公告)号：US5510499A
公开(公告)日：1996-04-23
申请号：US276748
申请日：1994-07-18
IPC分类号： C07C68/08 , C07C69/96 , C07D317/38
CPC分类号： C07D317/38
摘要： Ethylene glycol carbonate (EGC) can be isolated in purified form from contaminated material which contains impurities from the group comprising starting materials, by-products and/or catalysts of the preparation process in that the contaminated EGC is subjected to a fractional melt crystallization and the crystals of the purified EGC formed in this case are mechanically separated off from the remaining impurities dissolved in the residual melt.
摘要翻译： 乙二醇碳酸酯（EGC）可以从包含起始原料，制备方法的副产物和/或催化剂的组中的杂质的污染物质中分离出来，因为受污染的EGC经受分级熔融结晶， 在这种情况下形成的纯化EGC的晶体与溶解在残余熔体中的剩余杂质机械分离。
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公开(公告)号：US5808157A
公开(公告)日：1998-09-15
申请号：US511165
申请日：1995-08-04
IPC分类号： B01J23/648 , B01J23/44 , B01J23/64 , C07B61/00 , C07C209/36 , C07C211/44 , C07C211/45 , C07C211/46 , C07C211/47 , C07C211/49 , C07C209/04
CPC分类号： C07C209/36
摘要： Aromatic amines are produced by hydrogenation of the associated aromatic nitro compounds in the gas phase over fixed catalysts. The catalysts contain active hydrogenation metals on supports. The reaction is conducted at a pressure of 2-50 bar and at a temperature in the range 250.degree.-500.degree. C. under adiabatic conditions. A circulating gas is passed over the catalyst, which circulating gas contains 3-150 moles of hydrogen, 2-100 moles of the amino groups to be formed per mole of nitro groups, and 2 to 6 moles of water per amino group equivalent. The amine and water formed, as well as a purification stream, are separated from the circulating gas. Thereafter the circulating gas is enriched with volatilised aromatic nitro compound and fresh hydrogen and recycled.
摘要翻译： 通过在气相中通过固定催化剂氢化相关联的芳族硝基化合物来生产芳族胺。 催化剂在载体上含有活性氢化金属。 反应在绝热条件下，在2-50巴的压力和250-500℃的温度下进行。 循环气体通过催化剂，循环气体含有3-150摩尔氢，每摩尔硝基形成2-100摩尔氨基和每个氨基当量2-6摩尔水。 所形成的胺和水以及净化物流与循环气体分离。 此后，循环气体富含挥发的芳香硝基化合物和新鲜氢气并再循环。
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7.发明授权Process for the preparation of organic carbonates having at least one aromatic ester group 失效制备具有至少一个芳族酯基的有机碳酸酯的方法
公开(公告)号：US5362901A
公开(公告)日：1994-11-08
申请号：US66735
申请日：1993-05-25
申请人： Paul Wagner , Norbert Schon , Hans-Josef Buysch
发明人： Paul Wagner , Norbert Schon , Hans-Josef Buysch
CPC分类号： C07C68/06
摘要： The title compounds are prepared from organic carbonates having at least one aliphatic ester group and phenolic compounds by transesterification in the presence of a transesterification catalyst known per se at 60.degree.-320.degree. C. in a column-type reactor with multiple recycling of the reaction products into this reactor with intermediate storage of the product streams.
摘要翻译： 标题化合物由具有至少一个脂肪族酯基的有机碳酸酯和酚类化合物在具有本体已知的酯交换催化剂的存在下在60-320℃下在具有反应多次循环的柱式反应器中进行酯交换 产品进入该反应器，中间储存产品流。
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公开(公告)号：US5292953A
公开(公告)日：1994-03-08
申请号：US57199
申请日：1993-05-03
申请人： Reinhard Langer , Hans-Josef Buysch , Paul Wagner
发明人： Reinhard Langer , Hans-Josef Buysch , Paul Wagner
IPC分类号： C07C249/02 , C07C251/20
CPC分类号： C07C249/02 , C07C251/20
摘要： Azomethines can be prepared by the condensation of cycloalkanones and anilines in the presence of acid heterogeneous catalysts, with azeotropic removal of the water of reaction, the condensation being carried out in a continuous reaction in a column-like reactor having an applied temperature profile, and the starting materials being fed in the low-temperature zone and, of the reaction products, the water of reaction to be removed as an azeotrope also being removed in the low-temperature zone and the azomethine formed being removed in the high-temperature zone.
摘要翻译： 偶氮甲碱可以通过在酸性多相催化剂存在下环烷酮和苯胺的缩合制备，共沸除去反应水，在具有施加温度分布的柱状反应器中连续反应进行缩合，以及 在低温区中进料的起始原料和在低温区中除去的作为共沸物的待除去的反应产物的水，反应产物中形成的偶氮甲碱在高温区被除去。
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公开(公告)号：US5359118A
公开(公告)日：1994-10-25
申请号：US059489
申请日：1993-05-10
CPC分类号： C07C68/065 , Y10S203/06
摘要： Di-(C.sub.1 -C.sub.4 -alkyl) carbonates can be prepared by catalysed counter-current reesterification of ethylene glycol carbonate or propylene glycol carbonate with a C.sub.1 -C.sub.4 -alcohol in a column, ethylene glycol carbonate or propylene glycol carbonate being introduced into the upper part of the column and a dialkyl carbonate-containing C.sub.1 -C.sub.4 -alcohol being introduced into the central or lower part of the column and pure alcohol being additionally introduced below the introduction of the dialkyl carbonate-containing alcohol.
摘要翻译： 二 - （C 1 -C 4 - 烷基）碳酸酯可以通过催化的乙二醇碳酸酯或丙二醇碳酸酯与柱中的C 1 -C 4醇的逆流再酯交换，乙二醇碳酸酯或丙二醇碳酸酯引入上层 将柱的一部分和含有二烷基碳酸酯的C 1 -C 4醇引入塔的中部或下部，并且在引入含二烷基碳酸酯的醇之外另外引入纯醇。
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公开(公告)号：US5344954A
公开(公告)日：1994-09-06
申请号：US103936
申请日：1993-08-06
申请人： Norbert Schon , Hans-Josef Buysch , Paul Wagner , Reinhard Langer
发明人： Norbert Schon , Hans-Josef Buysch , Paul Wagner , Reinhard Langer
CPC分类号： C07C68/06
摘要： Diaryl carbonates are prepared from dialkyl carbonates and phenolic compounds by transesterification in the presence of a transesterification catalyst at 60.degree.-320.degree. C. in an apparatus composed of two columns in a continuous procedure. In the first column, the starting materials form essentially the associated alkyl aryl carbonate, from which, in the second column, the diaryl carbonate is produced by further transesterification and disproportionation.
摘要翻译： 碳酸二芳基酯由碳酸二烷基酯和酚类化合物通过在酯交换催化剂存在下，在60-320℃下在连续方法中由两列组成的装置中制备。 在第一列中，起始材料基本上形成缔合的碳酸烷基芳基酯，在第二列中，通过进一步的酯交换和歧化产生碳酸二芳基酯。
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