-
公开(公告)号：US09850190B2
公开(公告)日：2017-12-26
申请号：US15263727
申请日：2016-09-13
发明人： Chien-Fu Huang , Cheng-Hui Chan
摘要： Provided is a process of preparing dichloropropanol, DCP. The process includes the step of: subjecting a three-carbon material to a first chlorination reaction with an aqueous hydrochloric acid solution in the presence of a carboxylic acid catalyst; adding the three-carbon material into the first mixture solution to undergo a second chlorination reaction and obtain a second mixture solution containing less than 13 wt % of hydrochloric acid; distilling the second mixture solution; and purifying the overhead product by oil-water separation to obtain DCP from the oil phase. By lowering the concentration of the hydrochloric acid contained in the mixture to be distilled, the DCP product can be straightly obtained via distillation and oil-water separation, thereby effectively simplifying the process of preparing DCP.
-
公开(公告)号：US09656943B2
公开(公告)日：2017-05-23
申请号：US14918015
申请日：2015-10-20
发明人： Chien Fu Huang , Yi Ta Tsai
IPC分类号： C07C43/00 , C07C68/06 , C07D213/68
CPC分类号： C07C68/065 , C07C29/62 , C07D213/68 , C07C31/42 , C07C69/96
摘要： The present disclosure relates to a recycling method for producing dimethyl carbonate. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.
-
3.发明授权Process and apparatus for reducing heavy byproduct formation during distillation 有权用于减少蒸馏期间重副产物形成的方法和装置公开(公告)号：US08334415B2
公开(公告)日：2012-12-18
申请号：US12595468
申请日：2008-04-11
IPC分类号： C07C31/34 , C07D301/02
CPC分类号： C07C29/82 , B01D3/14 , B01D3/146 , B01D3/38 , C07C69/80 , C07C31/36 , C07C31/42 , C07C31/225
摘要： A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, water, 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 chlorinating agents, catalysts and/or esters of catalysts while minimizing formation of heavies is disclosed.
摘要翻译： 一种用于从包含二氯代醇，水，一种或多种选自二氯代醇，一氯代醇和/或其酯的酯和多羟基化脂族烃化合物和/或其酯的化合物的混合物中回收二氯代醇的方法和装置，以及任选的一种或多种物质 公开了包含氯化剂，催化剂和/或催化剂酯，同时最小化重质物的形成。
-
4.发明授权公开(公告)号：US08236975B2
公开(公告)日：2012-08-07
申请号：US13023783
申请日：2011-02-09
申请人： Bruce D. Hook , John Briggs , Robert M. Campbell , William J. Kruper , David J. Schreck , Richard D. Varjian , Jeffrey G. Hippler
发明人： Bruce D. Hook , John Briggs , Robert M. Campbell , William J. Kruper , David J. Schreck , Richard D. Varjian , Jeffrey G. Hippler
IPC分类号： C07D301/24
CPC分类号： C07D301/27 , C07C29/62 , C07C67/287 , C07C69/003 , C07C69/63 , C07C31/36 , C07C31/42
摘要： A process for converting a crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof to a chlorohydrin, by contacting the crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; wherein said crude glycerol, said ester of crude glycerol, or mixture thereof is derived from a renewable raw material. Chlorohydrins made by the process of the present invention are useful in preparing epoxides such as epichlorohydrins.
摘要翻译： 通过将粗甘油，天然衍生的多羟基化脂肪族烃或其酯的起始原料的粗混合物与超大气压源的原料甘油，天然衍生的多羟基化脂肪族烃或其酯的粗混合物与氯代醇反应， 氯化氢的分压足够的时间和足够的温度，并且其中这种收缩步骤在不基本除去水的情况下进行，以产生所需的氯代醇产物; 其中所需产物或产物可以以高产率制备而不显着形成不需要的过氯化副产物; 其中所述粗甘油，所述粗甘油酯或其混合物衍生自可再生原料。 通过本发明方法制备的氯代醇可用于制备环氧化物如表氯醇。
-
公开(公告)号：US20120035380A1
公开(公告)日：2012-02-09
申请号：US13060838
申请日：2009-08-24
申请人： Walter Kanzler
发明人： Walter Kanzler
IPC分类号： C07D301/02
CPC分类号： C07C29/62 , C07D301/26 , C07C31/36 , C07C31/42
摘要： A process for preparing epichlorohydrin includes chlorinating glycerol with gaseous hydrogen chloride in a bubble column, by supplying hydrogen chloride, glycerol and a mixture of monochloropropanediol and residues of glycerol recycled from the distillation units connected downstream of the bubble column, dichloropropanol and residues to the bottom of the bubble column, and, close to the top of the bubble column, drawing off the mixture of monochloropropanediol, dichloropropanol, water, residues of glycerol and residues formed there and feeding it to at least one distillation unit, after which the dichloropropanol and water distilled off there are hydrolyzed with sodium hydroxide solution. Unconverted hydrogen chloride drawn off from the top of the bubble column is absorbed with freshly supplied glycerol in a scrubber, and this hydrogen chloride-containing glycerol is supplied at the bottom of the bubble column. Preference is given to increasing the conversion rate by using oxalic acid as a catalyst.
摘要翻译： 制备表氯醇的方法包括在气泡塔中用氯化氢将甘油与氯化氢氯化，通过从气泡塔下游的蒸馏单元，二氯丙醇和残留物向底部供应氯化氢，甘油和一氯丙二醇与再循环的甘油残留物的混合物 的泡罩塔，并且靠近气泡塔的顶部，除去单氯丙二醇，二氯丙醇，水，甘油残留物和在那里形成的残留物的混合物，并将其送入至少一个蒸馏单元，之后将二氯丙醇和水 蒸馏出去，用氢氧化钠溶液水解。 从气泡塔顶部排出的未转化的氯化氢在洗涤器中用新鲜供应的甘油吸收，并且该含氯化氢的甘油在泡罩塔的底部提供。 优选使用草酸作为催化剂来提高转化率。
-
公开(公告)号：US20120004432A1
公开(公告)日：2012-01-05
申请号：US13256353
申请日：2010-03-17
申请人： Antoon Jacob Berend Ten Kate , Richard Herman Woudenberg , Eilertdina Henderika Renkema , Luc Louis Theophile Vertommen , Carolina Anna Maria Christina Dirix , Tim Baks
发明人： Antoon Jacob Berend Ten Kate , Richard Herman Woudenberg , Eilertdina Henderika Renkema , Luc Louis Theophile Vertommen , Carolina Anna Maria Christina Dirix , Tim Baks
IPC分类号： C07C31/36 , C07D301/26
摘要： The present invention relates to a process for the catalytic halogenation of an organic compound comprising at least one vicinal diol moiety, said process comprising a step of bringing the organic compound comprising at least one vicinal diol moiety into contact with a hydrogen halide in the presence of a catalyst, characterized in that the catalyst is an organic compound comprising a β-diketone moiety or a β-keto aldehyde moiety.
摘要翻译： 本发明涉及包含至少一个邻位二醇部分的有机化合物的催化卤化的方法，所述方法包括使包含至少一个邻位二醇部分的有机化合物与卤化氢接触的步骤 一种催化剂，其特征在于该催化剂是一种包含一个二 - 二酮部分或一个β-酮部分的有机化合物。
-
7.发明授权公开(公告)号：US07906690B2
公开(公告)日：2011-03-15
申请号：US11710002
申请日：2007-02-22
申请人： William J. Kruper, Jr. , Tina Arrowood , Bruce Michael Bell , John Briggs , Robert M. Campbell , Bruce D. Hook , Anh Nguyen , Curt Theriault , Ralf Fitschen
发明人： William J. Kruper, Jr. , Tina Arrowood , Bruce Michael Bell , John Briggs , Robert M. Campbell , Bruce D. Hook , Anh Nguyen , Curt Theriault , Ralf Fitschen
IPC分类号： C07C31/34
CPC分类号： C07D301/27 , C07C29/62 , C07C67/08 , C07C67/287 , C07C69/003 , C07C69/63 , C07C31/36 , C07C31/42
摘要： The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of hydrogen chloride at superatmospheric, atmospheric and subatmospheric pressure conditions for a sufficient time and at a sufficient temperature, preferably wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; said process carried out without a step undertaken to specifically remove volatile chlorinated hydrocarbon by-products or chloroacetone, wherein the combined concentration of volatile chlorinated hydrocarbon by-products and chloroacetone is less than 2000 ppm throughout any stage of the said process.
摘要翻译： 本发明涉及一种将多羟基化脂肪族烃或其酯转化为氯代醇的方法，其通过使多羟基化的脂族烃或其起始原料与超大气压，大气压和低于大气压的条件下的氯化氢源接触足够的 时间和足够的温度，优选地其中这种收缩步骤在不基本除去水的情况下进行，以产生所需的氯代醇产物; 其中所需产物或产物可以以高产率制备而不显着形成不需要的过氯化副产物; 所述方法没有进行特别去除挥发性氯化烃副产物或氯丙酮的步骤，其中在所述方法的任何阶段，挥发性氯化烃副产物和氯丙酮的组合浓度小于2000ppm。
-
8.发明申请CONVERSION OF A MULTIHYDROXYLATED-ALIPHATIC HYDROCARBON OR ESTER THEREOF TO A CHLOROHYDRIN 审中-公开将多羟基化二烃或其酯转化为氯仿的转化公开(公告)号：US20100152499A1
公开(公告)日：2010-06-17
申请号：US12595396
申请日：2008-04-11
申请人： John R. Briggs , Bruce D. Hook , William J. Kruper, JR. , Anil Mehta , Robert M. Alvarado , Sascha Noormann , Perry S. Basile
发明人： John R. Briggs , Bruce D. Hook , William J. Kruper, JR. , Anil Mehta , Robert M. Alvarado , Sascha Noormann , Perry S. Basile
摘要： The present invention relates to a process for converting at least one multihydroxylated-aliphatic hydrocarbon and/or an ester thereof to at least one chlorohydrin and/or an ester thereof, comprising at least one reaction step in which the multihydroxylated-aliphatic hydrocarbon and/or ester thereof is contacted with hydrogen chloride under reaction conditions to produce the chlorohydrin and/or ester thereof, followed by at least one downstream processing step in which the effluents of the reaction step are processed, wherein the downstream processing step is performed in such conditions that the effluents containing the chlorohydrin and/or ester thereof are kept at a temperature of less than 12O° C. The invention allows to minimize the liberation of hydrogen chloride from the products of the hydrochlorination reaction, hence reducing the corrosion of the downstream equipment and reducing M the need to use costly corrosion resistant materials.
摘要翻译： 本发明涉及将至少一种多羟基化脂族烃和/或其酯转化为至少一种氯代醇和/或其酯的方法，该方法包括至少一个反应步骤，其中多羟基化脂族烃和/或 其酯在反应条件下与氯化氢接触以产生氯醇和/或其酯，随后是至少一个下游处理步骤，其中反应步骤的流出物被处理，其中下游处理步骤在以下条件下进行： 含有氯代醇和/或其酯的流出物保持在低于120℃的温度。本发明允许氯化氢从氢氯化反应的产物中释放最小化，从而减少下游设备的腐蚀并减少 M需要使用昂贵的耐腐蚀材料。
-
公开(公告)号：US20100137652A1
公开(公告)日：2010-06-03
申请号：US12595480
申请日：2008-04-11
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。
-
公开(公告)号：US20090136396A1
公开(公告)日：2009-05-28
申请号：US12276968
申请日：2008-11-24
IPC分类号： B01J8/02
CPC分类号： C07C29/66 , B01F7/00766 , B01F13/1013 , B01F13/1016 , C07C31/42
摘要： Methods and systems for the preparation of chlorohydrins are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of olefins into the chlorinating phase. The high shear device may allow for lower reaction temperatures and pressures and may also reduce chlorination time.
-
-
-
-
-
-
-
-
-
搜索结果
152 条记录 (耗时 0.031 秒)
