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1. 发明授权

US4519875A Purification of ethylene glycol derived from ethylene carbonate 失效
标题翻译：来自碳酸亚乙酯的乙二醇的纯化
公开(公告)号：US4519875A
公开(公告)日：1985-05-28
申请号：US608639
申请日：1984-05-09
申请人： Mitchell Becker , Howard M. Sachs
发明人： Mitchell Becker , Howard M. Sachs
IPC分类号： C07C29/12 , B01D3/00 , C07C27/00 , C07C29/147 , C07C29/76 , C07C29/80 , C07C29/88 , C07C31/20 , C07C67/00 , B01D3/34
CPC分类号： C07C29/80 , B01D3/009 , C07C29/88 , Y02P20/127 , Y10S203/06
摘要： Ethylene glycol is purified, particularly for fiber-grade applications, by removal of the residual ethylene carbonate from which the glycol was derived. The effluent from a reactor in which ethylene carbonate is hydrolyzed to ethylene glycol is distilled to produce a lower-boiling fraction comprising substantially ethylene glycol and water and a higher-boiling fraction comprising substantially ethylene glycol, higher glycols, and concentrated in hydrolysis catalyst. The higher-boiling fraction is recirculated to reflux against the lower-boiling product, thereby essentially completing the hydrolysis of unreacted ethylene carbonate thereby reducing the ethylene carbonate content of the ethylene glycol to very low levels suitable for fiber-grade applications.
摘要翻译：纯化乙二醇，特别是纤维级应用，通过除去衍生二醇的残余碳酸亚乙酯。蒸馏出碳酸亚乙酯被水解成乙二醇的反应器的流出物，以产生基本上包含乙二醇和水的低沸点馏分和基本上包含乙二醇，高级二醇和在水解催化剂中浓缩的高沸点馏分。将较高沸点的馏分再循环回到低沸点产物的回流中，从而基本上完成了未反应的碳酸乙烯酯的水解，从而将乙二醇的碳酸亚乙酯含量降至非常低的水平，适用于纤维级应用。

2. 发明授权

US4786741A Preparation of alkylene carbonates 失效
标题翻译：碳酸亚烷基酯的制备
公开(公告)号：US4786741A
公开(公告)日：1988-11-22
申请号：US441191
申请日：1982-11-15
申请人： Howard M. Sachs
发明人： Howard M. Sachs
IPC分类号： C07D319/06 , C07D321/00 , C07D317/12
CPC分类号： C07D321/00 , C07D319/06
摘要： Alkylene carbonates, particularly ethylene carbonate, are prepared by the reaction of an alkylene oxide with carbon dioxide in the presence of a catalyst at temperatures ranging upwards from 20.degree. C., particularly temperatures above about 90.degree. C., preferably 90.degree.-170.degree. C. The conversion of alkylene oxide to alkylene carbonate can be carried out in the presence of water while minimizing the undesirable hydrolysis of the carbonate to the corresponding alkylene glycol and formation of higher glycols. This is achieved by maintaining the water to alkylene oxide molar ratio and the carbon dioxide to alkylene oxide ratio within the stated limits and adjusting the carbon dioxide partial pressure to provide the desired selectivity to alkylene carbonate.
摘要翻译：碳酸亚烷基酯，特别是碳酸亚乙酯，通过烯化氧与二氧化碳的反应，在催化剂存在下，在高于20℃，特别是高于约90℃，优选90-170℃的温度下进行反应来制备。烯化氧转化为碳酸亚烷基酯可以在水的存在下进行，同时最小化碳酸酯对相应的亚烷基二醇的不希望的水解和高级二醇的形成。这通过将水保持为环氧烷摩尔比，并将二氧化碳与环氧烷的比例保持在规定的范围内并调节二氧化碳分压以提供对碳酸亚烷基酯所需的选择性来实现。

3. 发明授权

US4661631A Process for the preparation of acetic acid 失效
标题翻译：乙酸的制备方法
公开(公告)号：US4661631A
公开(公告)日：1987-04-28
申请号：US566749
申请日：1983-12-28
申请人： Mitchell Becker , Howard M. Sachs
发明人： Mitchell Becker , Howard M. Sachs
IPC分类号： C07C51/12 , C07C53/08
CPC分类号： C07C51/12
摘要： Acetic acid is produced by reacting methanol with carbon monoxide in the presence of hydrogen, in the presence of a catalyst comprising a molybdenum-nickel or a tungsten-nickel cocatalyst component, in the presence of an iodide, and in the presence of a promoter comprising an organo-phosphorus compound or an organo-nitrogen compound, the ratio of the partial pressure of hydrogen to the partial pressure of carbon monoxide in the reaction zone being 0.05 to 0.4.
摘要翻译：在碘存在下，在含有钼 - 镍或钨 - 镍助催化剂组分的催化剂存在下，在氢的存在下，在甲醇与一氧化碳的存在下，在含有有机磷化合物或有机氮化合物，反应区中氢的分压与一氧化碳分压的比例为0.05〜0.4。

4. 发明授权

US4480127A Process for the production of variable amounts of DPA and aniline using only phenol and ammonia as the feedstock 失效
标题翻译：仅使用酚和氨作为原料生产可变量的DPA和苯胺的方法
公开(公告)号：US4480127A
公开(公告)日：1984-10-30
申请号：US496371
申请日：1983-05-20
申请人： Mitchell Becker , Howard M. Sachs
发明人： Mitchell Becker , Howard M. Sachs
IPC分类号： C07B61/00 , B01J21/04 , C07C67/00 , C07C209/00 , C07C209/18 , C07C211/46 , C07C211/55 , C07C85/06
CPC分类号： C07C209/18
摘要： A process for the production of predetermined variable amounts of diphenylamine and aniline from a feedstock consisting essentially of phenol and ammonia is disclosed. The process involves catalytically reacting phenol and ammonia to produce aniline in situ and then reacting part of the aniline with other phenol and aniline to produce DPA, with the remaining aniline being removed from the reaction media as product.
摘要翻译：公开了一种从基本上由苯酚和氨组成的原料生产预定的可变量的二苯胺和苯胺的方法。该方法包括使苯酚和氨催化反应以原位生成苯胺，然后使部分苯胺与其它苯酚和苯胺反应，生成DPA，剩余的苯胺从反应介质中作为产物除去。

5. 发明授权

US4151048A Recovery of alkylene glycols by azeotropic distillation 失效
标题翻译：通过共沸蒸馏回收亚烷基二醇
公开(公告)号：US4151048A
公开(公告)日：1979-04-24
申请号：US804033
申请日：1977-06-06
申请人： Mitchell Becker , Howard M. Sachs
发明人： Mitchell Becker , Howard M. Sachs
IPC分类号： C07C27/00 , C07C29/82 , C07C31/20 , C07C67/00 , B01D3/36 , C07C29/28
CPC分类号： C07C29/82
摘要： Ethylene glycol or 1,2-propylene glycol contained in mixtures with lower carboxylate esters of glycol, e.g. as produced by hydrolysis of the esters, is recovered by distillation of the mixtures with a hydrocarbon forming a minimum boiling azeotrope with the ethylene dlycol or 1,2-propylene glycol, the hydrocarbon being maintained in an inert atmosphere in the system.
摘要翻译：与乙二醇的低级羧酸酯的混合物中所含的乙二醇或1,2-丙二醇，例如通过酯的水解产生的，通过与形成与乙二醇或1,2-丙二醇形成最低沸点共沸物的烃混合物蒸馏回收，烃在系统中保持在惰性气氛中。

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