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41.发明授权Process for purifying technical grade 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol 失效纯化工业级1,1-双（氯苯基）-2,2,2-三氯乙醇的方法
公开(公告)号：US5075512A
公开(公告)日：1991-12-24
申请号：US618635
申请日：1990-11-27
摘要： A process for purifying technical grade 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol for reducing its content of DDT related impurities, based on dissolving technical grade dicofol in a mixture of water and a first compound selected from the group formed by ethylene glycol monomethyl ether, acetonitrile, hydroxyacetone or dimethyl sulfoxide, to obtain a solution which is extracted with n-decane, separating the resulting phases. The dicofol extracted with the n-decane is recovered by reextraction of the n-decane phase with mixtures of said first compound and water and the purified dicofol is recovered from the polar phase.
摘要翻译： 一种纯化工业级1,1-双（氯苯基）-2,2,2-三氯乙醇的方法，用于降低其滴滴涕相关杂质的含量，这是基于将工业级三氯包甲溶解在水和选自组中的第一种化合物 由乙二醇单甲醚，乙腈，羟基丙酮或二甲基亚砜形成，得到用正癸烷萃取的溶液，分离所得相。 用正癸烷提取的三氯杀螨醇通过用所述第一化合物和水的混合物再加入正癸烷相并从极性相中回收纯化的三氯杀螨醇来回收。
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公开(公告)号：US5008473A
公开(公告)日：1991-04-16
申请号：US98047
申请日：1987-09-17
CPC分类号： C07C29/86
摘要： A process for the purification of propanediol-1,3, especially when produced by hydration of acrolein with water, including extracting the diol with cyclohexane. Preferably, from 2 to 10 parts by weight of cyclohexane per part by weight of diol is used. The purification is usually carried out below 60.degree. C.
摘要翻译： 丙二醇-1,3-的纯化方法，特别是通过丙烯醛与水的水合反应制备的方法，包括用环己烷萃取二醇。 优选使用每重量份二醇2至10重量份的环己烷。 纯化通常在60℃以下进行。
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公开(公告)号：US4990692A
公开(公告)日：1991-02-05
申请号：US383058
申请日：1989-07-21
申请人： Hans-Juergen Gosch , Rolf Fischer
发明人： Hans-Juergen Gosch , Rolf Fischer
CPC分类号： C07C29/86 , C07C2101/14
摘要： Cyclohexanol is removed from aqueous solutions containing it and aromatic sulfonic acids by extraction with one or more cyclohexyl ethers liquid under extraction conditions and having the formula ##STR1## where R is alkyl of from 1 to 16 catbon atoms, cycloalkyl of from 5 to 8 carbon atoms, aralkyl of from 7 to 10 carbon atoms or phenyl, which may additionally have substituents which are inert under reaction conditions.
摘要翻译： 通过在萃取条件下用一种或多种环己基醚液体萃取，并且具有式（I）其中R是1至16个碳原子的烷基，5至8个的环烷基，其中R 1是含有它的水溶液和芳香族磺酸的环己醇 碳原子，7至10个碳原子的芳烷基或苯基，其可另外具有在反应条件下为惰性的取代基。
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公开(公告)号：US4842693A
公开(公告)日：1989-06-27
申请号：US89103
申请日：1987-08-25
申请人： Alfred G. Wheldon
发明人： Alfred G. Wheldon
CPC分类号： C07C29/86 , Y10S203/04 , Y10S203/08 , Y10S203/14
摘要： A method and apparatus for removing water from a liquid mixture of water and ethanol contacts it with liquid carbon dioxide so that the ethanol is preferentially transferred into solution, dries the solution using an adsorbent, and then recovers dry ethanol by distilling off the carbon dioxide. This process is particularly energy efficient especially when it includes a fermentation process to generate the ethanol and uses the carbon dioxide generated during the fermentation as the source of liquid carbon dioxide. In this case the method and apparatus provide an additional product of dry carbon dioxide.
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公开(公告)号：US4705902A
公开(公告)日：1987-11-10
申请号：US862001
申请日：1986-05-15
CPC分类号： C07C33/46
摘要： Process for preparing DDTr-free 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol (dicofol).
摘要翻译： 制备无DDTr的1,1-双（氯苯基）-2,2,2-三氯乙醇（三氯杀螨醇）的方法。
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46.发明授权Vinyl bromide extraction of butyric acid and butanol from microbial fermentation broth 失效溴化乙烯从微生物发酵液中提取丁酸和丁醇
公开(公告)号：US4628116A
公开(公告)日：1986-12-09
申请号：US519974
申请日：1986-01-08
申请人： Richard J. Cenedella
发明人： Richard J. Cenedella
IPC分类号： C07C29/86 , C07C51/48 , C07C31/12 , C07C53/124
CPC分类号： C07C29/86 , C07C51/48 , Y10S435/832 , Y10S435/842
摘要： The process of extracting butyric acid and normal butanol from microbial fermentation broth, comprising contacting an aqueous solution of a microbial fermentation broth with vinyl bromide to extract any butyric acid and normal butanol which is present from the fermentation broth into the vinyl bromide. The vinyl bromide is thereafter separated from the aqueous fermentation broth and then evaporated, leaving the butyric acid and/or normal butanol in substantially pure, isolated form.
摘要翻译： 从微生物发酵液中提取丁酸和正丁醇的方法，包括使微生物发酵液的水溶液与溴乙烯接触，将从发酵液中存在的任何丁酸和正丁醇提取到溴乙烯中。 然后从含水发酵液中分离乙烯基溴，然后蒸发，留下基本上纯的，分离形式的丁酸和/或正丁醇。
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47.发明授权Process for extracting polar organic compounds, in particular lower aliphatic alcohols, from their aqueous solutions, and fluids particularly suitable for this purpose 失效从其水溶液中萃取极性有机化合物，特别是低级脂族醇的方法，特别适用于此目的的流体
公开(公告)号：US4578525A
公开(公告)日：1986-03-25
申请号：US535879
申请日：1983-09-26
申请人： Harald Bruckner
发明人： Harald Bruckner
CPC分类号： C07C29/86
摘要： A process is presented for extracting polar organic compounds, in particular lower aliphatic alcohols, out of their aqueous solutions, which is based on the use of fluids which contain a significant amount of polyoxaalkanols, polyoxaalkanediols and/or polyoxaalkanepolyols. These compounds, by virtue of their high molar masses, their low solubility in water and their good affinity for polar organic compounds, are particularly suitable for use as extractants.
摘要翻译： 提出了一种从其水溶液中萃取极性有机化合物，特别是低级脂族醇的方法，其基于使用含有大量聚氧杂烷醇，聚氧杂烷二醇和/或聚氧杂烷醇多元醇的流体。 这些化合物由于其摩尔质量高，在水中的低溶解度及其对极性有机化合物的良好亲和性，特别适合用作萃取剂。
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公开(公告)号：US4469903A
公开(公告)日：1984-09-04
申请号：US534226
申请日：1983-09-21
申请人： Robert J. Schmidt
发明人： Robert J. Schmidt
摘要： A process is disclosed for the production of aliphatic alcohol by the direct hydration of an olefinic hydrocarbon. The process is directed to the production of isopropyl alcohol. The process includes the recovery of the alcohol from a water-rich hydration zone effluent stream by countercurrent liquid-liquid extraction against a paraffinic solvent. The solvent is derived from paraffins originally admixed with the olefin-containing feed stream, and the raffinate stream comprises water which is recycled in the process. Expensive product fractionation is eliminated in the production of a fuel grade isopropyl alcohol.
摘要翻译： 公开了通过直接水合烯烃制备脂族醇的方法。 该方法涉及异丙醇的生产。 该方法包括通过逆向液相萃取与石蜡溶剂从富水水合物流出物流中回收醇。 溶剂源自原来与含烯烃的进料流混合的链烷烃，萃余液流包括在该方法中再循环的水。 在燃料级异丙醇的生产中消除了昂贵的产品分馏。
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公开(公告)号：US4425137A
公开(公告)日：1984-01-10
申请号：US331964
申请日：1981-12-18
申请人： Ernest R. Roth
发明人： Ernest R. Roth
摘要： Alcohol/water mixtures, such as those produced by fermentation of biomass material, are separated by extraction of alcohol with a solvent, comprising a higher aliphatic alcohol in major amount and an aliphatic hydrocarbon in minor amount, especially suited to such extraction and to subsequent removal. The solvent alcohol desirably has a branched chain, or the hydrocarbon an unsaturated bond, or both. Conventional distillation steps to concentrate alcohol and eliminate water are rendered unnecessary at a considerable reduction in heat energy requirement (usually met with fossil fuel). Optional addition of gasoline between the solvent extraction and solvent recovery steps not only aids the latter separation but produces alcohol already denatured for fuel use.
摘要翻译： 醇/水混合物，例如通过生物质材料的发酵生产的那些，通过用包括主要量的高级脂族醇和少量的脂族烃的溶剂萃取醇来分离，特别适合于这种萃取和随后的去除 。 溶剂醇优选具有支链，或烃为不饱和键，或两者均为。 常规的蒸馏步骤，以浓缩酒精和消除水，在大大降低热能需求（通常符合化石燃料）方面是不必要的。 在溶剂萃取和溶剂回收步骤之间任选加入汽油不仅有助于后一种分离，而且产生已经变性以用于燃料使用的醇。
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公开(公告)号：US4393250A
公开(公告)日：1983-07-12
申请号：US372804
申请日：1982-04-28
IPC分类号： B01J31/10 , C07B61/00 , C07C5/13 , C07C5/22 , C07C5/25 , C07C5/333 , C07C7/04 , C07C9/08 , C07C9/10 , C07C9/12 , C07C11/06 , C07C11/08 , C07C11/09 , C07C11/167 , C07C27/00 , C07C29/04 , C07C29/32 , C07C29/86 , C07C31/04 , C07C31/10 , C07C31/12 , C07C41/00 , C07C41/06 , C07C41/09 , C07C41/42 , C07C43/04 , C07C67/00 , C07C37/72
摘要： A process for producing isopropyl alcohol and isopropyl tert-butyl ether from a mixture of light hydrocarbons containing propane and butane, comprises:(a) separating from the mixture of light hydrocarbons a propane fraction and a butane fraction containing at least n-butane;(b) isomerizing at least a portion of the n-butane in the butane fraction from step (a) whereby a hydrocarbon mixture containing at least n-butane and isobutane is formed;(c) catalytically dehydrogenating the isobutane in the hydrocarbon mixture from step (b) whereby a hydrocarbon mixture containing at least isobutene is produced;(d) catalytically dehydrogenating the propane in the propane fraction from step (a) whereby a hydrocarbon mixture containing at least propene is produced;(e) reacting the propene in the hydrocarbon mixture from step (d) with water, whereby a mixture containing hydrocarbons and isopropyl alcohol is formed;(f) reacting the isopropyl alcohol from step (e) with at least part of the isobutene in the hydrocarbon mixture from step (c) whereby a mixture containing hydrocarbons and isopropyl tert-butyl ether is formed;(g) recycling the hydrocarbons in the hydrocarbon mixture from step (e) to step (d), respectively;(h) recycling the hydrocarbons in the hydrocarbon mixture from step (f) to step (c); and(i) recovering at least the isopropyl tert-butyl ether.
摘要翻译： 从含有丙烷和丁烷的轻质烃的混合物中生产异丙醇和异丙基叔丁基醚的方法包括：（a）从轻质烃的混合物中分离出丙烷馏分和至少含有正丁烷的丁烷馏分; （b）使来自步骤（a）的丁烷馏分中的至少一部分正丁烷异构化，由此形成至少含有正丁烷和异丁烷的烃混合物; （c）使来自步骤（b）的烃混合物中的异丁烷催化脱氢，由此产生至少含有异丁烯的烃混合物; （d）使来自步骤（a）的丙烷馏分中的丙烷催化脱氢，由此产生至少含有丙烯的烃混合物; （e）将来自步骤（d）的烃混合物中的丙烯与水反应，由此形成含有烃和异丙醇的混合物; （f）将来自步骤（e）的异丙醇与来自步骤（c）的烃混合物中的至少一部分异丁烯反应，由此形成含有烃和异丙基叔丁基醚的混合物; （g）分别将来自步骤（e）的烃混合物中的烃再循环到步骤（d） （h）将来自步骤（f）的烃混合物中的烃再循环到步骤（c）; 和（i）至少回收异丙基叔丁基醚。
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