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公开(公告)号：US07982061B2
公开(公告)日：2011-07-19
申请号：US12508435
申请日：2009-07-23
IPC分类号： C07D301/24
CPC分类号： C07D301/26 , B01D3/009 , Y02P20/127
摘要： A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; and, (d) condensing and phase separating the overheads fraction at a temperature of 50° C. or less to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water.
摘要翻译： 一种制备环氧化物的方法，该方法包括：（a）将至少一种碱金属和至少一种卤代醇进料至反应性蒸馏塔; （b）在反应蒸馏塔中同时进行：（i）使至少一部分卤代醇与碱反应形成环氧化物; 和（ii）从碱性含水残余物中除去水和环氧化物; （c）从反应蒸馏塔中回收水和环氧化物作为塔顶馏分; 和（d）在50℃或更低的温度下冷凝和相分离塔顶馏分以形成包括环氧化物的有机塔顶馏分和包含水的塔顶馏分馏分。
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2.发明申请PROCESS AND APPARATUS FOR RECOVERY OF DICHLOROHYDRINS VIA CODISTILLATION 失效通过CODISTILLATION恢复二氯乙酸的方法和装置公开(公告)号：US20100137653A1
公开(公告)日：2010-06-03
申请号：US12595500
申请日：2008-04-11
摘要： A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising water, chlorinating agents, catalysts and/or esters of catalysts is disclosed. The mixture is stripped to recover dichlorohydrin(s) while distilling or fractionating the mixture to separate a lower boiling fraction comprising dichlorohydrin(s) from the mixture in one step. Advantages include more efficient recovery of dichlorohydrins for a given distillation column, less waste due to avoiding the conditions conducive to the formation of heavy byproducts, and reduced capital investment in recovery equipment.
摘要翻译： 一种用于从包含二氯代醇，一种或多种选自二氯丙醇，一氯代醇和/或其酯的酯，以及多羟基化脂族烃化合物和/或其酯的化合物和一种或多种包含水的物质的混合物中回收二氯代醇的方法和装置 ，公开了氯化剂，催化剂和/或催化剂的酯。 将混合物汽提以回收二氯丙醇，同时蒸馏或分馏该混合物以在一个步骤中从混合物中分离包含二氯代丙醇的低沸点馏分。 优点包括对于给定的蒸馏塔更有效地回收二氯代醇，由于避免了有利于形成重质副产物的条件而减少浪费，并减少了回收设备的资本投入。
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公开(公告)号：US08338627B2
公开(公告)日：2012-12-25
申请号：US12512227
申请日：2009-07-30
申请人： William W. Fan , Christian D. Kneupper , Sascha Noormann , Ranate Patrascu , Bruce D. Hook , Charles W. Lipp , Michael D. Cloeter , Heinz Groenewald
发明人： William W. Fan , Christian D. Kneupper , Sascha Noormann , Ranate Patrascu , Bruce D. Hook , Charles W. Lipp , Michael D. Cloeter , Heinz Groenewald
IPC分类号： C07D301/24
CPC分类号： C07D301/26 , C07D303/04 , C07D303/08 , Y02P20/127
摘要： A process for producing epoxide, the process including contacting an organic phase including at least one halohydrin(s) with at least one aqueous phase including a base in a plug-flow mixer/reactor system to disperse the organic phase in the aqueous phase via a mixing device imparting a power-to-mass ratio of at least 0.2 W/kg to convert at least a portion of the at least one halohydrin to an epoxide.
摘要翻译： 一种生产环氧化物的方法，该方法包括使包含至少一种卤代醇的有机相与至少一种包含碱的水相在活塞流混合器/反应器系统中接触，以通过经由 混合装置赋予至少0.2W / kg的功率质量比以将至少一部分卤代醇转化为环氧化物。
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公开(公告)号：US07985867B2
公开(公告)日：2011-07-26
申请号：US12508465
申请日：2009-07-23
IPC分类号： C07D301/24 , B01D3/34
CPC分类号： C07D301/26 , B01D3/009 , Y02P20/127
摘要： A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column, wherein the reactive distillation column includes a feed zone, a top zone disposed above the feed zone, and a bottom zone disposed below the feed zone; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; (d) condensing and phase separating the overheads fraction to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water; and (e) maintaining a liquid holdup per plate in the feed zone at a residence time of 10 seconds or less.
摘要翻译： 一种制备环氧化物的方法，该方法包括：（a）将至少一种碱金属和至少一种卤代醇进料到反应性蒸馏塔中，其中反应蒸馏塔包括进料区，设置在进料区上方的顶部区，以及 位于进料区下方的底部区域; （b）在反应蒸馏塔中同时进行：（i）使至少一部分卤代醇与碱反应形成环氧化物; 和（ii）从碱性含水残余物中除去水和环氧化物; （c）从反应蒸馏塔中回收水和环氧化物作为塔顶馏分; （d）冷凝和相分离塔顶馏分以形成包括环氧化物和包含水的含水塔顶馏分的有机塔顶馏分; 和（e）在10秒或更短的停留时间内在进料区中保持每个板的液体滞留量。
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公开(公告)号：US20100029959A1
公开(公告)日：2010-02-04
申请号：US12508465
申请日：2009-07-23
IPC分类号： C07D301/24
CPC分类号： C07D301/26 , B01D3/009 , Y02P20/127
摘要： A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column, wherein the reactive distillation column includes a feed zone, a top zone disposed above the feed zone, and a bottom zone disposed below the feed zone; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; (d) condensing and phase separating the overheads fraction to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water; and (e) maintaining a liquid holdup per plate in the feed zone at a residence time of 10 seconds or less.
摘要翻译： 一种制备环氧化物的方法，该方法包括：（a）将至少一种碱金属和至少一种卤代醇进料到反应性蒸馏塔中，其中反应蒸馏塔包括进料区，设置在进料区上方的顶部区，以及 位于进料区下方的底部区域; （b）在反应蒸馏塔中同时进行：（i）使至少一部分卤代醇与碱反应形成环氧化物; 和（ii）从碱性含水残余物中除去水和环氧化物; （c）从反应蒸馏塔中回收水和环氧化物作为塔顶馏分; （d）冷凝和相分离塔顶馏分以形成包括环氧化物和包含水的含水塔顶馏分的有机塔顶馏分; 和（e）在10秒或更短的停留时间内在进料区中保持每个板的液体滞留量。
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公开(公告)号：US08298500B2
公开(公告)日：2012-10-30
申请号：US12866370
申请日：2009-01-22
IPC分类号： B01J8/00 , C07D301/26
CPC分类号： C07D301/12 , C07D301/32
摘要： A process and apparatus are disclosed for the purification of epichlorohydrin. The process includes distilling and/or fractionating a feed stream containing epichlorohydrin, dichlorohydrin(s), and one or more other substances, subjecting at least a portion of the liquid phase effluent to a dichlorohydrin dehydrochlorination process for converting residual dichlorohydrin(s) in the liquid phase effluent to epichlorohydrin, and recovering purified epichlorohydrin from the vapor phase effluent in which the distillation/fractionation pressure and/or temperature of step (1) is adjusted to retain at least 5 weight-percent epichlorohydrin in the liquid phase effluent. The apparatus for making purified epichlorohydrin includes a dehydrochlorination apparatus, a first liquid-vapor contacting apparatus, and a second liquid-vapor contacting apparatus connected to the dehydrochlorination apparatus for recycling a distillate to the dehydrochlorination apparatus. Advantages include more efficient recovery of epichlorohydrins and reduced capital investment in recovery equipment.
摘要翻译： 公开了用于纯化表氯醇的方法和装置。 该方法包括蒸馏和/或分馏含有表氯醇，二氯丙醇和一种或多种其它物质的进料流，将至少一部分液相流出物进行二氯丙醇脱氯化氢处理，以将残留的二氯丙醇 液相流出物至表氯醇，并从蒸气相流出物中回收纯化的表氯醇，其中调节步骤（1）的蒸馏/分馏压力和/或温度以在液相流出物中保留至少5重量％的表氯醇。 用于制备纯化的表氯醇的装置包括脱氯化氢装置，第一液 - 蒸气接触装置和连接到脱氯化氢装置的第二液 - 蒸气接触装置，用于将馏出物再循环到脱氯化氢装置。 优点包括更有效地回收表氯醇，减少回收设备的资金投入。
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公开(公告)号：US20100029958A1
公开(公告)日：2010-02-04
申请号：US12508435
申请日：2009-07-23
IPC分类号： C07D301/24
CPC分类号： C07D301/26 , B01D3/009 , Y02P20/127
摘要： A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; and, (d) condensing and phase separating the overheads fraction at a temperature of 50° C. or less to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water.
摘要翻译： 一种制备环氧化物的方法，该方法包括：（a）将至少一种碱金属和至少一种卤代醇进料至反应性蒸馏塔; （b）在反应蒸馏塔中同时进行：（i）使至少一部分卤代醇与碱反应形成环氧化物; 和（ii）从碱性含水残余物中除去水和环氧化物; （c）从反应蒸馏塔中回收水和环氧化物作为塔顶馏分; 和（d）在50℃或更低的温度下冷凝和相分离塔顶馏分以形成包括环氧化物的有机塔顶馏分和包含水的塔顶馏分馏分。
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公开(公告)号：US5077435A
公开(公告)日：1991-12-31
申请号：US580988
申请日：1990-09-12
IPC分类号： C07C215/90
CPC分类号： C07C215/90
摘要： The present invention is a process for producing halohydroxypropyltrialkylammonium halides by reacting a trialkylamine salt with an epihalohydrin, the improvement comprising using 1,3-dihalo-2-propanol as a cosolvent. Using that cosolvent reduces the amount of diquaternary, dichloropropanol, and epoxy by-products formed. The cosolvent is preferably separated from the reaction mixture and recycled for use with additional trialkylamine salt and epihalohydrin. The process is particularly useful in preparing chlorohydroxypropyltrimethylammonium chloride.
摘要翻译： 本发明是通过使三烷基胺盐与表卤代醇反应制备卤代羟丙基三烷基卤化铵的方法，其改进包括使用1,3-二卤代-2-丙醇作为助溶剂。 使用该共溶剂可减少形成的二季，二氯丙醇和环氧副产物的量。 共溶剂优选与反应混合物分离并再循环用于另外的三烷基胺盐和表卤代醇。 该方法在制备氯羟丙基三甲基氯化铵中特别有用。
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公开(公告)号：US08664453B2
公开(公告)日：2014-03-04
申请号：US12595480
申请日：2008-04-11
IPC分类号： C07C29/82
CPC分类号： C07C29/82 , B01D3/14 , B01D3/146 , B01D3/38 , C07C2601/14 , C07C33/46 , C07C31/42 , C07C31/44 , C07C31/36
摘要： A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising water, chlorinating agents, catalysts and/or esters of catalysts is disclosed. The mixture is distilled or fractionated to separate a lower boiling fraction comprising dichlorohydrin(s) from the mixture to form a higher boiling fraction comprising the residue of the distillation or fractionation. The higher boiling fraction is stripped to recover remaining dichlorohydrins. Advantages include more efficient recovery of dichlorohydrins for a given distillation column, less waste due to avoiding the conditions conducive to the formation of heavy byproducts, and reduced capital investment in recovery equipment.
摘要翻译： 一种用于从包含二氯代醇，一种或多种选自二氯丙醇，一氯代醇和/或其酯的酯，以及多羟基化脂族烃化合物和/或其酯的化合物和一种或多种包含水的物质的混合物中回收二氯代醇的方法和装置 ，公开了氯化剂，催化剂和/或催化剂的酯。 将混合物蒸馏或分馏以从混合物中分离包含二氯丙醇的低沸点馏分以形成包含蒸馏或分馏残余物的较高沸点馏分。 汽提高沸点馏分以回收剩余的二氯代醇。 优点包括为给定的蒸馏塔更有效地回收二氯代醇，避免了有利于形成重质副产品的条件减少浪费，减少回收设备的资本投入。
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公开(公告)号：US20100331555A1
公开(公告)日：2010-12-30
申请号：US12866370
申请日：2009-01-22
IPC分类号： C07D301/24 , B01D3/14 , C07D301/32
CPC分类号： C07D301/12 , C07D301/32
摘要： A process and apparatus are disclosed for the purification of epichlorohydrin. The process includes distilling and/or fractionating a feed stream containing epichlorohydrin, dichlorohydrin(s), and one or more other substances, subjecting at least a portion of the liquid phase effluent to a dichlorohydrin dehydrochlorination process for converting residual dichlorohydrin(s) in the liquid phase effluent to epichlorohydrin, and recovering purified epichlorohydrin from the vapor phase effluent in which the distillation/fractionation pressure and/or temperature of step (1) is adjusted to retain at least 5 weight-percent epichlorohydrin in the liquid phase effluent. The apparatus for making purified epichlorohydrin includes a dehydrochlorination apparatus, a first liquid-vapor contacting apparatus, and a second liquid-vapor contacting apparatus connected to the dehydrochlorination apparatus for recycling a distillate to the dehydrochlorination apparatus. Advantages include more efficient recovery of epichlorohydrins and reduced capital investment in recovery equipment.
摘要翻译： 公开了用于纯化表氯醇的方法和装置。 该方法包括蒸馏和/或分馏含有表氯醇，二氯丙醇和一种或多种其它物质的进料流，将至少一部分液相流出物进行二氯丙醇脱氯化氢处理，以将残留的二氯丙醇 液相流出物至表氯醇，并从蒸气相流出物中回收纯化的表氯醇，其中调节步骤（1）的蒸馏/分馏压力和/或温度以在液相流出物中保留至少5重量％的表氯醇。 用于制备纯化的表氯醇的装置包括脱氯化氢装置，第一液 - 蒸气接触装置和连接到脱氯化氢装置的第二液 - 蒸气接触装置，用于将馏出物再循环到脱氯化氢装置。 优点包括更有效地回收表氯醇，减少回收设备的资金投入。
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