公开(公告)号：US06515172B2

公开(公告)日：2003-02-04

申请号：US09902395

申请日：2001-07-10

申请人： Ralf Grottenmüller ,  Wolfgang Knaup ,  Anton Probst ,  Klaus Dullinger

发明人： Ralf Grottenmüller ,  Wolfgang Knaup ,  Anton Probst ,  Klaus Dullinger

IPC分类号： C07C51215

CPC分类号： C07C51/215 ,  C07C51/21 ,  C07C67/39 ,  C07C57/56 ,  C07C53/21 ,  C07C69/63

摘要： Process for the preparation of perfluorocarboxylic acids of the formula RF—COOH, salts thereof and esters thereof from perfluoroalkyl iodides of the formula RF′—I, in which RF and RF′ are cyclic, branched or linear, saturated or unsaturated perfluoroalkyl radicals, by activating the perfluoroalkyl iodides in the presence of oxygen and in organic solvents.

公开(公告)号：US06310241B1

公开(公告)日：2001-10-30

申请号：US09461086

申请日：1999-12-14

申请人： Khalid Karim ,  Edouard Mamedov ,  Mohammed H. Al-Hazmi ,  Anis H. Fakeeha ,  Mustaf A. Soliman ,  Yousef S. Al-Zeghayer ,  Ahmed S. Al-Fatish ,  Abdulsalm A. Al-Arify

发明人： Khalid Karim ,  Edouard Mamedov ,  Mohammed H. Al-Hazmi ,  Anis H. Fakeeha ,  Mustaf A. Soliman ,  Yousef S. Al-Zeghayer ,  Ahmed S. Al-Fatish ,  Abdulsalm A. Al-Arify

IPC分类号： C07C51215

CPC分类号： C07C51/215 ,  B01J23/002 ,  B01J23/6525 ,  B01J37/0236 ,  B01J2523/00 ,  Y02P20/582 ,  C07C53/08 ,  B01J2523/55 ,  B01J2523/56 ,  B01J2523/68 ,  B01J2523/824

摘要： An oxide catalyst comprising the elements Mo, V, Nb and Pd. The novel catalytic system provides both higher selectivity and yield of acetic acid in the low temperature one step vapor phase direct oxidation of ethane with molecular oxygen containing gas without production of side products such as ethylene and CO. The feed gas is contacted with a catalyst containing Mo, V, Nb, Pd and O in the ratio a:b:c:d:x where a is 1 to 5; b is 0 to 0.5; c is 0.01 to 0.5; d is 0 0.2 and x is a number determined by the valence of the other elements in the catalyst.

摘要翻译： 包含元素Mo，V，Nb和Pd的氧化物催化剂。 新型催化体系在低温一步气相直接氧化乙烷与含分子氧的气体中提供乙酸的较高选择性和产率，而不生产乙烯和CO等副产物，进料气体与含有 Mo，V，Nb，Pd和O，其比例a:b:c:d:x其中a为1至5; b为0〜0.5; c为0.01〜0.5; d为0 0.2，x为由催化剂中其它元素的化合价决定的数。

公开(公告)号：US06274765B1

公开(公告)日：2001-08-14

申请号：US09403516

申请日：1999-11-10

申请人： Holger Borchert ,  Uwe Dingerdissen ,  Ranier Roesky

发明人： Holger Borchert ,  Uwe Dingerdissen ,  Ranier Roesky

IPC分类号： C07C51215

CPC分类号： C07C51/215 ,  B01J23/6527 ,  B01J23/687 ,  C07C51/25 ,  C07C53/08

摘要： A process is disclosed for selectively preparing acetic acid from a gaseous feed of ethane, ethylene or mixtures thereof, as well as oxygen, at an increased temperature, on a catalyst which contains the elements W, X, Y and Z in the gram-atom ratio a:b:c:d, associated with oxygen. In the formula WaXbYcZd (I), X stands for one or several elements selected from the group Pd, Pt, Ag and/or Au; Y stands for one or several elements selected from the group V, Nb, Cr, Mn, Fe, Sn, Sb, Cu, Zn, U, Ni and/or Bi; Z stands for one or several elements selected from the group Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Ti, Zr, Hf, Ru, Os, Co, Rh, Ir, B, Al, Ga, In, Tl, Si, Ge, Pb, P, As and/or Te; a equals 1, b is a number higher than 0, c is a number higher than 0, and d is a number from 0 to 2. Also disclosed is said catalyst.

摘要翻译： 公开了一种方法，用于从乙烯，乙烯或其混合物的气态进料中选择性地制备乙酸，以及在升高的温度下，在含有元素W，X，Y和Z的元素的催化剂上的氧气 比例a：b：c：d，与氧相关。 式中，X表示选自Pd，Pt，Ag和/或Au中的一种或几种元素; Y代表选自V，Nb，Cr，Mn，Fe，Sn，Sb，Cu，Zn，U，Ni和/或Bi中的一种或几种元素; Z代表选自Li，Na，K，Rb，Cs，Be，Mg，Ca，Sr，Ba，Sc，Y，La，Ti，Zr，Hf，Ru，Os，Co，Rh中的一种或几种元素 ，Ir，B，Al，Ga，In，Tl，Si，Ge，Pb，P，As和/或Te; a等于1，b是高于0的数，c是高于0的数，d是0至2的数。还公开了所述催化剂。

公开(公告)号：US06541664B1

公开(公告)日：2003-04-01

申请号：US09509553

申请日：2000-04-13

申请人： Harald Jachow ,  Andreas Tenten ,  Signe Unverricht ,  Heiko Arnold

发明人： Harald Jachow ,  Andreas Tenten ,  Signe Unverricht ,  Heiko Arnold

IPC分类号： C07C51215

CPC分类号： C07C69/734 ,  B01J23/002 ,  B01J2523/00 ,  C07C45/33 ,  C07C51/215 ,  C07C59/66 ,  C07C69/716 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/845

摘要： In a process for heterogeneously catalyzed gas-phase oxidation, a reaction gas starting mixture comprising propane, molecular oxygen and, if desired, inert gas is passed at from 300 to 500° C. over a fixed-bed catalyst.

摘要翻译： 在用于非均相催化气相氧化的方法中，包含丙烷，分子氧和如果需要的惰性气体的反应气体起始混合物在300-500℃下通过固定床催化剂。

公开(公告)号：US06346647B2

公开(公告)日：2002-02-12

申请号：US09828235

申请日：2001-04-09

申请人： Xinlin Tu ,  Mamoru Takahashi ,  Madoka Furuta ,  Hiroshi Niizuma

发明人： Xinlin Tu ,  Mamoru Takahashi ,  Madoka Furuta ,  Hiroshi Niizuma

IPC分类号： C07C51215

CPC分类号： B01J23/28 ,  B01J23/22 ,  C07C51/215 ,  C07C57/04

摘要： A metal oxide catalyst which can produce acrylic acid by a vapor phase catalytic oxidation of propane in high yield and has excellent abrasion resistance is disclosed. The metal oxide catalyst comprises Mo, V, Sb, A (A represents Nb or Ta) and optionally other metals, and is prepared through the following steps (1) and (2): (1) Step of reacting V+5 and Sb+3 at a temperature of 70° C. or higher in the presence of Mo+6 in an aqueous medium, and bubbling an oxygen-containing gas into the reaction solution during or after the reaction; and (2) Step of adding to the reaction product obtained in step (1) a solution containing a compound comprising A and an aqueous solution of nitric acid or ammonium nitrate, uniformly stirring these components, and then calcining the resulting mixture.

摘要翻译： 公开了一种金属氧化物催化剂，其可以通过丙烷的气相催化氧化高产率并具有优异的耐磨性来生产丙烯酸。 金属氧化物催化剂包括Mo，V，Sb，A（A代表Nb或Ta）和任选的其它金属，并通过以下步骤（1）和（2）制备：（1）使V + 5和Sb +在温度为70℃或更高的温度下，在水介质中存在Mo + 6，并在反应期间或之后向反应溶液中鼓泡含氧气体; （2）向步骤（1）获得的反应产物中加入含有A的化合物和硝酸或硝酸铵水溶液的溶液，均匀搅拌这些组分，然后煅烧所得混合物的步骤。

公开(公告)号：US06320075B1

公开(公告)日：2001-11-20

申请号：US09520454

申请日：2000-03-08

申请人： Christoph Ruedinger ,  Hans-Juergen Eberle ,  Michael Hallmann

发明人： Christoph Ruedinger ,  Hans-Juergen Eberle ,  Michael Hallmann

IPC分类号： C07C51215

CPC分类号： C07C51/252 ,  C07C51/215 ,  C07C51/48 ,  Y02P20/582 ,  Y02P20/584 ,  C07C53/08 ,  C07C53/02

摘要： A process and an apparatus are for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation at a reaction temperature of from 100° C. to 400° C. and pressures of from 1.2×105 to 51×105 Pa in the presence of saturated or unsaturated C4-hydrocarbons and mixtures thereof. Also present in the reactor are an oxygen-containing gas and water vapor and in the presence of at least one catalyst, with part of the reactor outlet gas being recirculated in a reaction gas circuit. The acid concentration in the recirculated portion is reduced by means of a separation step, and the crude acid is separated from the reactor outlet gas by means of a countercurrent scrubber.

摘要翻译： 一种方法和装置用于通过在100℃至400℃的反应温度下通过气相氧化制备具有1至4个碳原子的饱和羧酸，以及在存在时在1.2×10 5至51×10 5 Pa的压力下 的饱和或不饱和C 4烃及其混合物。 还存在于反应器中的是含氧气体和水蒸气，并且在至少一种催化剂的存在下，部分反应器出口气体在反应气体回路中再循环。 通过分离步骤减少再循环部分中的酸浓度，并且通过逆流洗涤器将粗酸与反应器出口气体分离。