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1. 发明授权

US06242620B1 Process for making carboxylic acid esters 失效
标题翻译：制备羧酸酯的方法
公开(公告)号：US06242620B1
公开(公告)日：2001-06-05
申请号：US09035681
申请日：1998-03-05
申请人： A. Fred Elsasser , C. William Blewett , Charles M. White
发明人： A. Fred Elsasser , C. William Blewett , Charles M. White
IPC分类号： C11C300
CPC分类号： C11C3/003 , C07C29/149 , C07C67/56 , C07C69/58 , C07C69/24 , C07C31/125
摘要： Sulfur and soap contaminants are removed from carboxylic acid esters by a process comprising the steps of: (1) contacting a carboxylic acid ester with an aqueous base at a temperature of from about 225° F. to about 280° F. while removing water to form a dry, crude ester; (2) contacting the dry, crude ester with an absorbent selected from the group consisting of silica gel, hydro-silica gel and mixtures thereof; (3) separating the absorbent from the ester.
摘要翻译：通过包括以下步骤的方法从羧酸酯中除去硫和皂污染物：（1）在约225°F至约280°F的温度下使羧酸酯与碱水溶液接触，同时将水除去形成干燥的粗酯; （2）使干的粗酯与选自硅胶，水硅胶及其混合物的吸收剂接触; （3）将吸收剂与酯分离。

2. 发明授权

US06623604B1 Method of recovering free fatty acids having low ester content and high acid value 失效
标题翻译：回收具有低酯含量和高酸值的游离脂肪酸的方法
公开(公告)号：US06623604B1
公开(公告)日：2003-09-23
申请号：US09586917
申请日：2000-06-05
申请人： A. Fred Elsasser , C. William Blewett
发明人： A. Fred Elsasser , C. William Blewett
IPC分类号： B01D300
CPC分类号： B01D3/143 , B01D3/38 , C07C29/80 , C11C1/10 , C11C1/103 , C07C31/04 , C07C31/08 , C07C31/10 , C07C31/12 , C07C31/125
摘要： Methods of recovering free fatty acids having a low ester content from alkanol-containing solutions and oil mixtures containing tocopherols are disclosed which involve atmospheric or vacuum stripping at low temperatures. The recovered fatty acids have a high acid value, and have high commercial value in the production of high quality (high acid value) products, e.g., dimerized fatty acids, useful in polyamide resins.
摘要翻译：公开了从含有链烷醇的溶液和含有生育酚的油混合物中回收具有低酯含量的游离脂肪酸的方法，其涉及在低温下的大气或真空汽提。回收的脂肪酸具有高酸值，并且在用于聚酰胺树脂的高品质（高酸值）产物例如二聚脂肪酸的生产中具有高商业价值。

3. 发明授权

US06187903B1 Method of preparing dimeric fatty acids and/or esters thereof containing low residual interesters and the resulting dimeric fatty acids and/or dimeric fatty esters 失效
标题翻译：制备含有低残留兴奋剂的二聚脂肪酸和/或其酯的方法以及得到的二聚脂肪酸和/或二聚脂肪酸酯
公开(公告)号：US06187903B1
公开(公告)日：2001-02-13
申请号：US09363459
申请日：1999-07-29
申请人： A. Fred Elsasser , Laura A. McCargar
发明人： A. Fred Elsasser , Laura A. McCargar
IPC分类号： C07C5300
CPC分类号： C09F7/00 , C07C51/353 , C07C67/60 , C07C55/00 , C07C69/593
摘要： A dimeric fatty acid and/or dimeric fatty ester product having a low residual content of interesters is obtained by hydrolyzing the interesters to provide monomeric unsaturated fatty acids and alcohols as the hydrolysates and thereafter removing the hydrolysates from the dimeric fatty acid and/or dimeric fatty ester product.
摘要翻译：通过水解所述目的物以提供单体不饱和脂肪酸和醇作为水解产物，然后从二聚脂肪酸和/或二聚脂肪中除去水解产物，获得具有低剩余含量的二聚脂肪酸和/或二聚脂肪酸酯产物酯产品。

4. 发明授权

US5874625A Process to hydrogenate organic nitriles to primary amines 失效
标题翻译：将有机腈氢化成伯胺的方法
公开(公告)号：US5874625A
公开(公告)日：1999-02-23
申请号：US743263
申请日：1996-11-04
申请人： A. Fred Elsasser
发明人： A. Fred Elsasser
IPC分类号： C07C209/48
CPC分类号： C07C209/48
摘要： An improved, optimized industrial process has been found for the hydrogenation of organic nitrites into primary amines, which essentially consists of contacting a dried charge of at least one organic nitrile, aqueous alkali metal hydroxide, at least one Raney slurry hydrogenation catalyst, water and hydrogen for an effective time and at an effective temperature and pressure, wherein the improvements comprise eliminating the steps of drying the charge and adding water and reducing the required water to about 0.2%. Secondary and tertiary amine formation is low, as is moisture content and neither precious metals such as rhodium, nor strategic metals, such as cobalt nor ammonia gas nor solvents are required. Surprisingly, it has been found that water levels less than that taught in the prior art are effective at suppressing secondary and tertiary amine production, while still producing repeatable product on an industrial scale and with reduced cycle time, energy and catalyst charge.
摘要翻译：已经发现，将有机亚硝酸盐氢化成伯胺的改进的优化工业方法，其基本上包括使至少一种有机腈，碱金属氢氧化物水溶液，至少一种阮内浆液氢化催化剂，水和氢在有效时间和有效的温度和压力下，其中改进包括消除干燥电荷和加入水并将所需水减少至约0.2％的步骤。二级和三级胺的形成也是低的，水分含量也不高，既不需要诸如铑的贵金属，也不需要诸如钴或氨气以及溶剂的战略金属。令人惊讶的是，已经发现，与现有技术中教导的水相比，低于抑制二级和叔胺生产的水平是有效的，同时仍然以工业规模生产可重复的产品，并且具有减少的循环时间，能量和催化剂装料量。

5. 发明授权

US5550264A Process for the removal of dissolved metallic catalyst from ester products 失效
标题翻译：从酯产物中除去溶解的金属催化剂的方法
公开(公告)号：US5550264A
公开(公告)日：1996-08-27
申请号：US274593
申请日：1994-07-13
申请人： A. Fred Elsasser
发明人： A. Fred Elsasser
IPC分类号： C07C67/56 , C07C69/24 , C07C69/34 , C11C1/08 , C11B3/10
CPC分类号： C07C67/56
摘要： A process for purifying crude ester containing residual metallic catalyst is described. The process comprises (a) adding to a crude ester product an amorphous silicon dioxide adsorbent capable of adsorbing dissolved metallic catalyst; (b) heating the combination at a temperature of between about 80.degree. C. and about 130.degree. C.; and (c) separating the ester from the adsorbent by filtration, such that residual metallic catalyst is retained on the adsorbent.
摘要翻译：描述了用于纯化含有粗品的残留金属催化剂的方法。该方法包括（a）向粗酯产物中加入能够吸附溶解的金属催化剂的无定形二氧化硅吸附剂; （b）在约80℃至约130℃的温度下加热组合; 和（c）通过过滤将酯与吸附剂分离，使得残留的金属催化剂保留在吸附剂上。

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