公开(公告)号：US06673212B2

公开(公告)日：2004-01-06

申请号：US10127286

申请日：2002-04-22

申请人： James R. Machac, Jr. ,  Edward T. Marquis ,  Susan A. Woodrum ,  Ralph M. DiGuilio ,  Mike W. McKinney

发明人： James R. Machac, Jr. ,  Edward T. Marquis ,  Susan A. Woodrum ,  Ralph M. DiGuilio ,  Mike W. McKinney

IPC分类号： B01D334

CPC分类号： C07D317/36 ,  B01D3/34 ,  C07D317/38 ,  Y10S203/11

摘要： Identified herein are inhibitors which may be added to the boiling pot portion of a distillation apparatus prior to or during the distillation of an alkylene carbonate. The inhibitors retard the occurrence of undesirable reactions of the alkylene carbonate with itself and impurities present in the pot, and hence greatly reduce or minimize the formation of undesirable by-products which otherwise tend to reduce overall yields of alkylene carbonate recovered by the distillation process. Higher distillation temperatures at higher pressures over the prior art are possible without attendant losses of significant amounts of recovered alkylene carbonate, which confers heretofore unseen flexibility in alkylene carbonate distillation.

摘要翻译： 本文所述的是在碳酸亚烷基酯蒸馏之前或期间可以加入到蒸馏装置的沸腾锅部分的抑制剂。 抑制剂阻碍碳酸亚烃酯本身和存在于罐中的杂质的不期望的反应的发生，因此大大减少或最小化不期望的副产物的形成，否则倾向于降低由蒸馏过程回收的碳酸亚烃酯的总产率。 与现有技术相比，在较高压力下的较高蒸馏温度是可能的，而不需要大量回收的碳酸亚烃酯的损失，这在碳酸亚烷基酯蒸馏中赋予迄今未见的灵活性。

公开(公告)号：US6060625A

公开(公告)日：2000-05-09

申请号：US303170

申请日：1999-04-30

申请人： Wei-Yang Su ,  Mike W. McKinney ,  Timothy L. Lambert ,  Edward T. Marquis

发明人： Wei-Yang Su ,  Mike W. McKinney ,  Timothy L. Lambert ,  Edward T. Marquis

IPC分类号： C07C213/00 ,  C07C213/04 ,  C07C217/08 ,  C07C217/50 ,  C07C217/54 ,  C08G65/26 ,  C10L1/22 ,  C10L1/222 ,  C10L1/234 ,  C07C211/03

CPC分类号： C07C213/04

摘要： A process for the alkoxylation of a polyetheramine to form an etheramine alkoxylate. In the process, a polyetheramine is reacted with an alkylene oxide in the presence of an alcohol to form the etheramine alkoxylate. The alcohol serves as a catalyst to allow the reaction proceed at a heightened temperature as compared to the reaction in the absence of alcohol, while at the same time limiting the amount of glycol by-product production which would otherwise typically form when higher polyetheramines are to be alkoxylated. The alcohol may be, for instance, ethanol or methanol.

摘要翻译： 聚醚胺烷氧基化形成醚胺烷氧基化物的方法。 在此过程中，聚醚胺与烯化氧在醇的存在下反应形成醚胺烷氧基化物。 该醇用作催化剂，以使反应在不存在醇时与反应相比在升高的温度下进行，同时限制二乙二醇副产物生产的量，否则通常在较高的聚醚胺为 被烷氧基化。 醇可以是例如乙醇或甲醇。