公开(公告)号：US20040127750A1

公开(公告)日：2004-07-01

申请号：US10335124

申请日：2002-12-31

申请人： Council of Scientific and Industrial Research

发明人： Ashutosh Vasant Bedekar ,  Ramachandraiah Gadde ,  Pushhpito Kumar Ghosh

IPC分类号： C07C045/00

CPC分类号： C07C45/512 ,  C07C49/687

摘要： A highly pure 2,4,4,6-tetrabromo-2,5-cyclohexadienone has been prepared in a single pot, eco-friendly procedure in yields of 91-94% from phenol. In this method, a mixture of alkali/alkaline earth metal bromide and alkali/alkaline earth metal bromate was employed as brominating agent in place of corrosive liquid bromine. The reaction between phenol and the brominating reagent was initiated by the action of a mineral acid or moderately strong organic acid. The crude product was further characterized by standard analytical and spectroscopic methods.

摘要翻译： 在一锅，环保方法中制备了高纯度的2,4,4,6-四溴-2,5-环己二烯酮，产率为941-94％。 在该方法中，使用碱金属/碱土金属溴化物和碱金属/碱土金属溴酸盐的混合物作为溴化剂代替腐蚀性液体溴。 苯酚和溴化试剂之间的反应是通过无机酸或中等强度有机酸的作用引发的。 粗产物通过标准分析和光谱方法进一步表征。

公开(公告)号：US20030144555A1

公开(公告)日：2003-07-31

申请号：US10309808

申请日：2002-12-05

申请人： GTC Technology Corporation

发明人： Fu-Ming Lee ,  Randi Wright Wytcherley ,  Ronald G. Gualy

IPC分类号： C07C045/00

CPC分类号： C07C51/313 ,  C07C51/47 ,  C07C55/14

摘要： Methods and apparatus for removing a catalyst from a reaction mixture formed by reacting a hydrocarbon or an oxygenated hydrocarbon with an oxidant in the presence of the catalyst in a reactor, in which the reaction mixture contains one or more dibasic acids. The catalyst is removed by adding water and/or cooling the reaction mixture to cause phase separation, recycling the polar phase to the reactor, and transferring the less-polar phase to an ion exchange unit to remove catalyst contained therein.

摘要翻译： 在催化剂存在下在反应器中使烃或含氧烃与氧化剂反应形成的反应混合物中的催化剂的方法和装置，其中反应混合物含有一种或多种二元酸。 通过加入水和/或冷却反应混合物来除去催化剂以引起相分离，将极性相循环到反应器中，并将较少极性相转移到离子交换单元以除去其中所含的催化剂。

公开(公告)号：US20020055658A1

公开(公告)日：2002-05-09

申请号：US09950832

申请日：2001-09-13

发明人： Israel E. Wachs

IPC分类号： C07C045/00 ,  B01J008/04 ,  B01J023/22 ,  B01J023/28

CPC分类号： B01J35/0006 ,  B01J23/22 ,  B01J23/28 ,  C07C45/38 ,  C07C47/04

摘要： A process and apparatus for oxidizing methanol in a gas stream into formaldehyde in a fixed bed reactor. The process first introduces a gas stream into a fixed bed reactor. The fixed bed reactor contains a catalyst bed having a depth, a width, a length, an inlet, an upstream region, a downstream region and an outlet. Preferably, the inlet, the upstream region, the downstream region and the outlet are provided in the order stated. A vanadia-titania catalyst is provided in the upstream region and a molybdena-titania catalyst is provided in the downstream region. The vanadia-titania catalyst in the upstream region is substantially free of MoO3 and initially (i.e., during oxidation some V2O5 may sublime and migrate to the downstream region) the molybdena-titania catalyst in the downstream region is substantially free of V2O5. Next, the gas stream is contacted with the vanadia-titania catalyst under oxidizing conditions. Then, the gas stream is contacted with a molybdena-titania catalyst under oxidizing conditions which provides a product stream containing formaldehyde at the desired conversion and formaldehyde selectivity.

摘要翻译： 一种在固定床反应器中将气流中的甲醇氧化成甲醛的方法和装置。 该方法首先将气流引入固定床反应器。 固定床反应器包含具有深度，宽度，长度，入口，上游区域，下游区域和出口的催化剂床。 优选地，入口，上游区域，下游区域和出口按照所述的顺序提供。 在上游区域提供氧化钒 - 二氧化钛催化剂，在下游区域设置钼 - 二氧化钛催化剂。 上游区域中的氧化钒 - 二氧化钛催化剂基本上不含MoO 3，并且最初（即，在氧化期间，一些V 2 O 5可能升华并迁移至下游区域），下游区域中的钼 - 二氧化钛催化剂基本上不含V 2 O 5。 接下来，气体在氧化条件下与氧化钒 - 二氧化钛催化剂接触。 然后，气流在氧化条件下与钼 - 二氧化钛催化剂接触，其提供以所需转化率和甲醛选择性含有甲醛的产物流。

公开(公告)号：US20010016670A1

公开(公告)日：2001-08-23

申请号：US09735926

申请日：2000-12-14

发明人： Shuzo Murata ,  Nobuhiro Tani ,  Hiroyuki Asano

IPC分类号： C07C045/00

CPC分类号： C07C409/14 ,  C07C29/50 ,  C07C45/33 ,  C07C407/00 ,  C07C2601/14 ,  C07C49/403 ,  C07C35/08

摘要： A process for preparing a ketone, an alcohol and/or a hydroperoxide is provided by reacting a hydrocarbon with molecular oxygen in the presence of a cyclic N-hydroxyimide and a compound of a transition metal, in which an oxygen-containing gas is supplied in a reaction system and at the same time a gas containing 1 to 10% by volume of oxygen is discharged from the reaction system. This process is excellent in productivity and safety and produces the desired products at a high selectivity.

摘要翻译： 通过在环状N-羟基酰亚胺和过氧化物的存在下使烃与分子氧反应来制备酮，醇和/或氢过氧化物的方法，其中供给含氧气体的过渡金属化合物 反应体系同时从反应体系排出含有1〜10体积％氧气的气体。 该方法在生产率和安全性方面是优异的，并以高选择性产生所需的产物。

公开(公告)号：US20010005767A1

公开(公告)日：2001-06-28

申请号：US09732684

申请日：2000-12-08

发明人： Wulf Kuhnle ,  Thomas Hopfner

IPC分类号： C07C045/00

CPC分类号： C07C45/00 ,  C07C49/80

摘要： Acetophenones which are di- or polysubstituted by fluoroalkyl groups on the aromatic ring are prepared in a particularly advantageous manner from the corresponding fluoroalkylanilines and acetaldoxime by preparing a corresponding diazonium salt mixture from the fluoroalkylaniline, reacting this mixture with acetaldoxime in the presence of at least one copper and/or palladium compound, without adding buffer salts or a reducing agent, carrying out the reaction with acetaldoxime at 5 to 50null C. and in the presence of halide ions and at least one strong acid that is not a hydrohalic acid, and finally heating the mixture to a temperature in the range 70 to 160null C.

摘要翻译： 通过从氟代烷基苯胺制备相应的重氮盐混合物，通过相应的氟代烷基苯胺和乙醛肟特别有利的方式制备芳环上的氟代烷基二取代或多取代的苯乙酮，使该混合物与乙醛肟在至少一种 铜和/或钯化合物，不加入缓冲盐或还原剂，在5〜50℃下进行与乙醛肟的反应，并且在卤离子和至少一种不是氢卤酸的强酸的存在下，以及 最后将混合物加热至70至160℃的温度。

公开(公告)号：US20040133045A1

公开(公告)日：2004-07-08

申请号：US10647431

申请日：2003-08-26

发明人： Hitoshi Okanobori ,  Atsushi Kamachi

IPC分类号： B01J021/18 ,  C07C045/00

CPC分类号： B01J23/462 ,  B01J21/18 ,  C07C45/002 ,  Y02P20/582

摘要： A catalyst particle containing an active metal and a carrier composed of a carbon material, wherein the active metal being supported by cavities on a surface of the carrier and their edge portions. The active metal is fixedly attached to the carrier for a long period of time, so that the catalyst particle stably shows a high catalytic activity, which is hardly reduced by a reaction. The catalyst particle is usable for the dehydrogenation of alcohols.

摘要翻译： 一种含有活性金属和由碳材料构成的载体的催化剂颗粒，其中活性金属由载体表面上的空腔及其边缘部分支撑。 活性金属长时间固定在载体上，催化剂粒子稳定地表现出很高的催化活性，反应难以降低。 催化剂颗粒可用于醇的脱氢。

公开(公告)号：US20040074758A1

公开(公告)日：2004-04-22

申请号：US10614680

申请日：2003-07-03

发明人： Markus Weber ,  Otto Schnurr

IPC分类号： B01D003/34 ,  B01D003/38 ,  C07C045/00

CPC分类号： C07C45/53 ,  B01D3/146 ,  C07C45/34 ,  C07C45/82 ,  C07C45/85 ,  Y10S203/20 ,  C07C47/02 ,  C07C49/08

摘要： The present invention provides a continuous process for recovering acetone from a waste stream from an acetone purification stage, whereas said waste stream comprises mesityl oxide and optionally acetone by separating the waste stream in a separating device at least in one stream comprising mesityl oxide and optionally a further stream comprising acetone, by than concentrating mesityl oxide in the mesityl oxide containing stream and finally by recycling the concentrated mesityl oxide stream to the separating device and bringing it into contact with a basic or acidic aqueous medium or with an acidic catalyst in the presence of water whereby mesityl oxide is at least partially hydrolyzed to acetone.

摘要翻译： 本发明提供了从丙酮净化阶段从废物流中回收丙酮的连续方法，而所述废物流包含三甲氧基和任选的丙酮，通过在分离装置中至少在一个流中分离废物流，所述流包含三甲氧基和任选的 进一步的流包含丙酮，通过将富马酸二氧化物浓缩在含有均三氧化物的流中，最后通过将浓缩的三氧化硅流再循环到分离装置并使其与碱性或酸性水性介质或酸性催化剂接触，在存在 水，其中，平均三氧化物至少部分水解成丙酮。

公开(公告)号：US20040054234A1

公开(公告)日：2004-03-18

申请号：US10415806

申请日：2003-09-26

发明人： Roland Jacquot

IPC分类号： C07C045/00

CPC分类号： C07C45/48 ,  C07C49/80 ,  C07C49/167

摘要： A subject of the present invention is a process for preparation of fluorinated ketones corresponding to general formula (I) R1nullCOnullR2 in which R1 and R2 are as defined in claim 1, characterized in that it consists of reacting two carboxylic acids of Formula (II), R1nullCOOH and Formula (III), R2nullCOOH, in the gaseous phase and in the presence of a catalyst comprising at least one oxide of an element chosen from the rare earths, thorium, titanium and aluminium.

摘要翻译： 本发明的主题是对应于通式（I）R 1 -CO-R 2的氟化酮的制备方法，其中R 1和R 2如权利要求1所定义，其特征在于它由两种式 （II），R1-COOH和式（III），R2-COOH，并且在包含至少一种选自稀土，钍，钛和铝的元素的氧化物的催化剂存在下进行。

公开(公告)号：US20030088095A1

公开(公告)日：2003-05-08

申请号：US10212840

申请日：2002-08-07

申请人： CENTRAL GLASS COMPANY, LIMITED

发明人： Akihiro Ishii ,  Masatomi Kanai ,  Takashi Hayami ,  Katsuyoshi Shibata ,  Masaki Matsui ,  Kazumasa Funabiki ,  Yokusu Kuriyama ,  Manabu Yasumoto

IPC分类号： C07D279/12 ,  C07D211/32 ,  C07D241/04 ,  C07C045/00

CPC分类号： C07C69/675 ,  C07B2200/07 ,  C07C29/143 ,  C07C45/516 ,  C07C45/78 ,  C07C45/81 ,  C07C49/82 ,  C07C49/84 ,  C07C31/42

摘要： A first process for producing an optically active perfluoroalkylcarbinol derivative includes (a) reacting an optically active imine with a compound that is a hemiacetal of a perfluoroalkylaldehyde or a hydrate of a perfluoroalkylaldehyde to obtain a condensate; and (b) hydrolyzing the condensate under an acid condition. A second process for increasing optical purity of an optically active 4,4,4-trifluoro 3-hydroxy-1-aryl-1-butanone derivative includes (a) precipitating a racemic crystal of the derivative, from the derivative; and (b) removing the racemic crystal from the derivative. A third process for increasing optical purity of the butanone derivative includes recrystallizing the derivative. Novel compounds are optically active and inactive 4,4,4-trifluoro-3-hydroxybutanoic aryl ester derivatives. A fourth process for producing an optically active or optically inactive 4,4,4-trifluoro-3-hydroxybutyric acid aryl ester derivative includes oxidizing an optically active or optically inactive 4,4,4-trifluoro-3-hydroxy-1-aryl-1-butanone derivative. A fifth process for increasing optical purity of the optically active aryl ester derivative includes recrystallizing the derivative. A sixth process for producing an optically active 4,4,4-trifluoro-1,3-butanediol includes reducing the optically active aryl ester derivative by a hydride. A seventh process for producing an optically active or inactive 4,4,4-trifluoro-3-hydroxybutyric acid alkyl ester derivative includes reacting under an acid condition the optically active or optically inactive aryl ester derivative with a lower alcohol. It is possible to suitably combine at least two of the first to seventh processes.

摘要翻译： 制备光学活性全氟烷基甲醇衍生物的第一种方法包括（a）使光学活性亚胺与全氟烷基醛的半缩醛化合物或全氟烷基醛的水合物反应得到缩合物; 和（b）在酸性条件下水解冷凝物。 提高光学活性4,4,4-三氟-3-羟基-1-芳基-1-丁酮衍生物的光学纯度的第二种方法包括（a）从衍生物中沉淀出衍生物的外消旋晶体; 和（b）从衍生物中除去外消旋晶体。 提高丁酮衍生物的光学纯度的第三种方法包括使衍生物重结晶。 新型化合物是光学活性和无活性的4,4,4-三氟-3-羟基丁酸芳酯衍生物。 制备光学活性或光学活性的4,4,4-三氟-3-羟基丁酸芳基酯衍生物的第四种方法包括将光学活性或光学活性的4,4,4-三氟-3-羟基-1-芳基 - 1-丁酮衍生物。 提高光学活性芳基酯衍生物的光学纯度的第五种方法包括使该衍生物重结晶。 制备光学活性4,4,4-三氟-1,3-丁二醇的第六种方法包括用氢化物还原光学活性芳基酯衍生物。 用于制备光学活性或无活性的4,4,4-三氟-3-羟基丁酸烷基酯衍生物的第七种方法包括在酸性条件下使光学活性或光学惰性的芳基酯衍生物与低级醇反应。 可以适当地组合第一至第七过程中的至少两个。

公开(公告)号：US20020193639A1

公开(公告)日：2002-12-19

申请号：US10135543

申请日：2002-04-30

申请人： Ticona GmbH

发明人： Werner Sievers ,  Elke Schweers ,  Michael Rosenberg

IPC分类号： C07C045/00

CPC分类号： C07C45/783 ,  B01D1/22 ,  B01D1/30 ,  C07C45/515 ,  C07C45/82 ,  C07C47/04

摘要： A process and an apparatus for the post-purification in particular of pyrolysis gases for preparing pure formaldehyde, hemiformal being pyrolyzed in an evaporator, the resulting formaldehyde vapor being passed through a condensed liquid component collected in the bottom area of the evaporator, the condensed liquid component being passed out as a falling film situated on the inner wall through a cooled outlet tube disposed in the bottom area of the evaporator and the formaldehyde vapor being passed through the cooled outlet tube in cocurrent and the liquid component and the formaldehyde being taken off separately at the outlet tube end remote from the evaporator.

摘要翻译： 用于后净化的方法和装置，特别是用于制备纯甲醛的热解气体的方法和装置，在蒸发器中将半形状物热解，得到的甲醛蒸气通过收集在蒸发器底部区域中的冷凝液体组分，冷凝液 组件作为位于内壁上的降膜通过设置在蒸发器底部区域中的冷却出口管排出，并且甲醛蒸汽并流通过冷却出口管，液体组分和甲醛分别取出 在远离蒸发器的出口管端。