公开(公告)号：US08476463B2

公开(公告)日：2013-07-02

申请号：US12935894

申请日：2009-03-23

申请人： Gunther Windecker ,  Jens Weiguny ,  Alexander Weck ,  Ellen Dahlhoff ,  Wolf-Steffen Weiβker ,  Jörg Heilek ,  Thomas Krug ,  Ralf Freyberger

发明人： Gunther Windecker ,  Jens Weiguny ,  Alexander Weck ,  Ellen Dahlhoff ,  Wolf-Steffen Weiβker ,  Jörg Heilek ,  Thomas Krug ,  Ralf Freyberger

IPC分类号： C07D307/36 ,  C07D307/34

CPC分类号： C07C51/573 ,  C07C57/145

摘要： Processes for decreasing fumaric acid deposits in preparing maleic anhydride by heterogeneously catalyzed oxidation of a hydrocarbon with molecular oxygen. Maleic anhydride is absorbed from the crude mixture in an absorbent in an absorption column and desorbed in a desorption column, the entirety or portion of absorbent depleted in maleic anhydride, for controlled precipitation of fumaric acid, being cooled and/or concentrated by evaporating a portion of absorbent such that the difference between the concentration of fumaric acid in the recycle stream at the outlet of the desorption column under existing conditions and the equilibrium concentration of fumaric acid according to the solubility curve after cooling and/or evaporation of a portion of absorbent is ≧250 ppm by weight, and the fumaric acid precipitated as a solid is removed completely or partly from the absorbent recycling system and the fumaric acid-depleted absorbent is recycled completely or partly to the absorption column.

摘要翻译： 通过用分子氧异构催化氧化烃来减少富马酸沉积物制备​​马来酸酐的方法。 马来酸酐在吸收塔中的吸收剂中从粗混合物中吸收并在解吸塔中解吸，耗尽马来酸酐的全部或部分吸收剂用于控制富马酸的沉淀，通过蒸发一部分而被冷却和/或浓缩 的吸收剂，使得在现有条件下在解吸塔出口处的再循环料流中的富马酸浓度与部分吸收剂冷却和/或蒸发后根据溶解度曲线的平均浓度的富马酸的差异是 > 250ppm（重量），并且作为固体沉淀的富马酸被完全或部分地从吸收剂再循环系统中除去，富马酸贫乏的吸收剂被完全或部分地再循环到吸收塔。

公开(公告)号：US07087767B2

公开(公告)日：2006-08-08

申请号：US10522993

申请日：2003-07-22

申请人： Jens Weiguny ,  Wilhelm Ruppel ,  Mark Duda

发明人： Jens Weiguny ,  Wilhelm Ruppel ,  Mark Duda

IPC分类号： C07D307/60

CPC分类号： C07D307/60

摘要： Process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms by means of oxygen-containing gases at from 350 to 500° C. in the presence of a volatile phosphorus compound over a vanadium-, phosphorus- and oxygen-containing catalyst in a shell-and-tube reactor unit having at least one reaction zone cooled by means of a heat transfer medium, in which the temperature and/or the amount of the heat transfer medium flowing into the first (relative to the feed direction) reaction zone are set so that the mean temperature of the heat transfer medium in the first reaction zone TSB(1st zone), which is calculated as the mean of the inflow temperature and the outflow temperature of the heat transfer medium, is in accordance with the formulae (I) and (II) TSB(1st zone)≦TR(1st zone)−TSafety(1st zone)  (I) TSB, Ymax(1st zone)−TA(1st zone)≦TSB(1st zone)≦TSB, Ymax(1st zone)+TB(1st zone),  (II) where TR(1st zone) is the runaway temperature of the first reaction zone; TSafety(1st zone) is the safety temperature of the first reaction zone and has a value of 1° C.; TSB, Ymax(1st zone) is the mean temperature of the heat transfer medium in the first reaction zone at which the maximum maleic anhydride yield is achieved in the range TSB(1st zone)≦TR(1st zone); TA(1st zone) is 20° C.; and TB(1st zone) is 10° C.

公开(公告)号：US20050153834A1

公开(公告)日：2005-07-14

申请号：US10507601

申请日：2003-03-12

申请人： Jens Weiguny ,  Sebastian Storck ,  Mark Duda ,  Cornelia Dobner ,  Raimund Felder

发明人： Jens Weiguny ,  Sebastian Storck ,  Mark Duda ,  Cornelia Dobner ,  Raimund Felder

IPC分类号： C07D307/60 ,  B01J27/198 ,  B01J35/02 ,  B01J35/10 ,  B01J37/00 ,  B01J37/08 ,  B01J37/14 ,  B01J37/18 ,  C07C51/215 ,  C07C51/25

CPC分类号： B01J8/10 ,  B01J8/067 ,  B01J19/22 ,  B01J27/198 ,  B01J35/023 ,  B01J35/026 ,  B01J35/1014 ,  B01J35/1038 ,  B01J37/0009 ,  B01J37/08 ,  B01J37/14 ,  B01J37/18 ,  B01J2208/00849 ,  B01J2208/00876 ,  B01J2219/182 ,  C07C51/215 ,  C07C51/252 ,  C07C57/145

摘要： Disclosed is a method for producing a catalyst containing vanadium, phosphorus, and oxygen, which is used for oxidizing the gas phase of a hydrocarbon having at least four carbon atoms to maleic anhydride. According to the inventive method, a corresponding catalyst precursor which contains vanadium, phosphorus, and oxygen and is provided with particles having an average diameter of at least 2 mm is converted into a catalytically active form by means of calcination, and a flow of the catalyst precursor is transported on a conveyor belt across at least one calcination area over a distance ln at an essentially steady speed in order to be calcinated. The variation over time of the gas temperature in relation to the set point value amounts to ≦5 ° C. at each position in the area of the flow of the catalyst precursor, which lies within the second half ln/2 of the calcination area, while the local difference in the gas temperature between any positions in the area of the flow of the catalyst precursor, which is located within the second half lnn/2 of the calcination area, amounts to ≦5 ° C.

摘要翻译： 公开了一种用于生产含有钒，磷和氧的催化剂的方法，其用于将具有至少四个碳原子的烃的气相氧化为马来酸酐。 根据本发明的方法，将含有钒，磷和氧并且具有平均直径至少为2mm的颗粒的相应催化剂前体通过煅烧转化为催化活性形式，并且催化剂流 前驱体在传送带上以基本上稳定的速度穿过至少一个煅烧区域在一定距离上被运输，以便被煅烧。 气体温度随时间的变化相对于设定点值在催化剂前体的流动区域内的每个位置处为<= 5℃，其位于第二半导体区域内， SUB> / 2，而位于第二半层之间的催化剂前体的流动区域中的任何位置之间的气体温度的局部差异 的煅烧面积相当于<= 5℃

公开(公告)号：US5648551A

公开(公告)日：1997-07-15

申请号：US592069

申请日：1996-01-26

申请人： Holger Borchert ,  Thomas Gerdau ,  Jens Weiguny

发明人： Holger Borchert ,  Thomas Gerdau ,  Jens Weiguny

IPC分类号： B01J23/847 ,  B01J23/85 ,  B01J23/88 ,  C07B61/00 ,  C07C45/36 ,  C07C47/55

CPC分类号： C07C45/36

摘要： The invention relates to a process for the preparation of halobenzaldehydes of the formula (I): ##STR1## in which Hal is fluorine, chlorine, bromine or iodine and z=1, 2, 3 or 4, by catalytic gas-phase oxidation of a substituted toluene of the formula (II), ##STR2## by oxygen, which comprises carrying out the oxidation in the presence of a catalyst of the formula (III)Me.sup.1.sub.a Me.sup.2.sub.b Me.sup.3.sub.c O.sub.x (III),in which Me.sup.1 is bismuth or vanadium, Me.sup.2 is at least one of the elements selected from the group consisting of lithium, sodium, potassium, rubidium and cesium, Me.sup.3 is at least one element selected from the group consisting of iron, cobalt, nickel, niobium, molybdenum, arsenic, tin, antimony, tungsten, tantalum, phosphorus, chromium, manganese, palladium, copper, zinc, cerium, silver, boron, samarium, barium, calcium, magnesium and rhenium, and the letters a, b and c represent an atomic ratio of the respective elements such that when a=1, b has a value in the range from 0.1 to 2 and c has a value in the range from 0.05 to 2, different values for b and c being possible for different elements Me.sup.2 or Me.sup.3.

摘要翻译： 本发明涉及一种制备式（I）的卤代苯甲醛的方法：其中Hal是氟，氯，溴或碘，z = 1,2,3或4，通过催化气 - 其中包括在式（III）Me1aMe2bMe3cOx（III）的催化剂存在下进行氧化，其中Me1是铋（III），式（II）的取代的甲苯， 或钒，Me 2是选自锂，钠，钾，铷和铯中的至少一种元素，Me 3是选自铁，钴，镍，铌，钼，砷中的至少一种元素 锡，锑，钨，钽，磷，铬，锰，钯，铜，锌，铈，银，硼，钐，钡，钙，镁和铼，字母a，b和c表示 各个元件使得当a = 1时，b具有在0.1至2的范围内的值，c具有值 在0.05至2的范围内，对于不同的元素Me2或Me3，b和c的不同值是可能的。

公开(公告)号：US20110245517A1

公开(公告)日：2011-10-06

申请号：US12740468

申请日：2009-11-05

申请人： Gunther Windecker ,  Jens Weiguny ,  Alexander Weck ,  Ellen Dahlhoff ,  Ralf Freyberger

发明人： Gunther Windecker ,  Jens Weiguny ,  Alexander Weck ,  Ellen Dahlhoff ,  Ralf Freyberger

IPC分类号： C07D307/08

CPC分类号： C07D307/08

摘要： The present invention relates to a process for preparing tetrahydrofuran by absorption of C4-dicarboxylic acids and/or derivatives thereof from a crude product mixture into an organic solvent or water as absorption medium, removal of the absorption medium, catalytic hydrogenation of the resulting C4-dicarboxylic acids and/or derivatives thereof and distillation of the water-comprising crude tetrahydrofuran in at least one distillation column, wherein THF-comprising waste streams from the distillation are catalytically hydrogenated with complete or partial recirculation to the process.

摘要翻译： 本发明涉及通过将C4-二羧酸和/或其衍生物从粗产物混合物吸收到作为吸收介质的有机溶剂或水中，去除吸收介质，催化氢化所得C4-二羧酸和/ 二羧酸和/或其衍生物，并在至少一个蒸馏塔中蒸馏含水的粗四氢呋喃，其中来自蒸馏的含THF的废物流通过完全或部分再循环进行催化氢化。

公开(公告)号：US20100113805A1

公开(公告)日：2010-05-06

申请号：US12532660

申请日：2008-03-19

申请人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

发明人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

IPC分类号： C07D307/60

CPC分类号： B01D3/14 ,  B01D3/141 ,  C07C51/573 ,  C07C57/145

摘要： What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining column. The maleic anhydride obtained as a side draw has a low content of acrylic acid and acetic acid.

摘要翻译： 所描述的是通过蒸馏从马来酸酐在高沸点吸收剂中的溶液获得马来酸酐的方法，其通过烃的气相氧化和至少部分吸收氧化产物进入吸收剂中获得， 将溶液引入进料塔的侧面，其中设置在进料点上方的精馏部分和设置在进料点下方的汽提部分，ii）提供与精馏部分的上端连通的上部混合塔和下部 组合柱与汽提部分的下端连通，iii）提供与上部混合塔和下部混合塔连通的牵引柱，iv）将拉伸马来酸酐作为拉伸塔的牵引拉出，拉出 在上部混合塔的顶部具有比马来酸酐低的沸点的化合物和在底部o的高沸点吸收剂 f下组合列。 作为侧馏分获得的马来酸酐具有低含量的丙烯酸和乙酸。

公开(公告)号：US6034270A

公开(公告)日：2000-03-07

申请号：US180995

申请日：1998-11-19

申请人： Holger Borchert ,  Uwe Dingerdissen ,  Jens Weiguny

发明人： Holger Borchert ,  Uwe Dingerdissen ,  Jens Weiguny

IPC分类号： B01J23/88 ,  B01J23/16 ,  B01J23/36 ,  B01J23/44 ,  B01J23/656 ,  C07B61/00 ,  C07C5/48 ,  C07C11/04 ,  C07C51/21 ,  C07C51/215 ,  C07C51/25 ,  C07C53/08 ,  C07C51/16

CPC分类号： C07C51/215 ,  B01J23/6567 ,  C07C51/25

摘要： A process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a catalyst comprising the elements Mo, Pd, Re, X and Y in gram atom ratios a:b:c:d:e in combination with oxygenMo.sub.a Pd.sub.b Re.sub.c X.sub.d Y.sub.e (I)where the symbols X, Y have the following meanings:X=Cr, Mn, Nb, B, Ta, Ti, V and/or WY=Bi, Ce, Co, Cu, Te, Fe, Li, K, Na, Rb, Be, Mg, Ca, Sr, Ba, Ni, P, Pb, Sb, Si, Sn, Tl and/or U;the indices a, b, c, d and e are the gram atom ratios of the corresponding elements, wherea=1, b>0, c>0, d=0.05-2, e=0-3.

摘要翻译： PCT No.PCT / EP97 / 02522 Sec。 371日期：1998年11月19日 102（e）1998年11月19日日期PCT提交1997年5月16日PCT公布。 第WO97 / 44299号公报 日期1997年11月27日一种在高温下从包含乙烷，乙烯或其混合物加气体的气态进料中选择性制备乙酸的方法，其包括使气态进料与包含元素Mo，Pd，Re ，X和Y以克原子比a：b：c：d：e与氧摩尔比RbRecXdYe（I）组合，其中符号X，Y具有以下含义：X = Cr，Mn，Nb，B，Ta，Ti，V 和/或WY = Bi，Ce，Co，Cu，Te，Fe，Li，K，Na，Rb，Be，Mg，Ca，Sr，Ba，Ni，P，Pb，Sb，Si，Sn， 或U; 指数a，b，c，d和e是相应元素的克原子比，其中a = 1，b> 0，c> 0，d = 0.05-2，e = 0-3。

公开(公告)号：US08461356B2

公开(公告)日：2013-06-11

申请号：US12532660

申请日：2008-03-19

申请人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

发明人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

IPC分类号： C07D307/36

CPC分类号： B01D3/14 ,  B01D3/141 ,  C07C51/573 ,  C07C57/145

摘要： What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining column. The maleic anhydride obtained as a side draw has a low content of acrylic acid and acetic acid.

摘要翻译： 所描述的是通过蒸馏从马来酸酐在高沸点吸收剂中的溶液获得马来酸酐的方法，其通过烃的气相氧化和至少部分吸收氧化产物进入吸收剂中获得， 将溶液引入进料塔的侧面，其中设置在进料点上方的精馏部分和设置在进料点下方的汽提部分，ii）提供与精馏部分的上端连通的上部混合塔和下部 组合柱与汽提部分的下端连通，iii）提供与上部混合塔和下部混合塔连通的牵引柱，iv）将拉伸马来酸酐作为拉伸塔的牵引拉出，拉出 在上部混合塔的顶部具有比马来酸酐低的沸点的化合物和在底部o的高沸点吸收剂 f下组合列。 作为侧馏分获得的马来酸酐具有低含量的丙烯酸和乙酸。

公开(公告)号：US07169732B2

公开(公告)日：2007-01-30

申请号：US10507610

申请日：2003-03-12

申请人： Jens Weiguny ,  Sebastian Storck ,  Mark Duda ,  Cornelia Dobner

发明人： Jens Weiguny ,  Sebastian Storck ,  Mark Duda ,  Cornelia Dobner

IPC分类号： B01J27/18 ,  C07D307/60

CPC分类号： C07C51/252 ,  B01J23/002 ,  B01J27/198 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/0018 ,  B01J37/031 ,  B01J2523/00 ,  C07C51/215 ,  C07C57/145 ,  B01J2523/51 ,  B01J2523/55

摘要： A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms, which comprises (a) reacting vanadium pentoxide with from 102 to 110% strength phosphoric acid in the presence of a primary or secondary, noncyclic or cyclic, unbranched or branched, saturated alcohol having from 3 to 6 carbon atoms in a temperature range from 80 to 160° C.; (b) isolating the precipitate formed; (c) setting an organic carbon content of ≦1.1% by weight in the isolated precipitate by heat treatment in a temperature range from 250 to 350° C., the heat-treated product, following the addition of 3.0% by weight of graphite, giving a powder X-ray diffraction diagram which in the 2θ region features a ratio of the height of the peak of any pyrophosphate phase present at 28.5° to the height of the peak due to the graphite at 26.6° of ≦0.1; and (d) shaping the heat-treated product obtained from step (c) into particles having an averaged diameter of at least 2 mm; a catalyst precursor obtainable from this process; a process for preparing a catalyst from the catalyst precursor; a catalyst obtainable from that process; and also a process for preparing maleic anhydride over that catalyst.

摘要翻译： 一种制备用于通过异构催化气相氧化具有至少四个碳原子的烃来制备马来酸酐的钒，磷和氧催化剂前体的方法，其包括（a）使五氧化二钒与102-110％强度的磷酸 在80至160℃的温度范围内在具有3至6个碳原子的伯或仲，非环或环状，无支链或支链的饱和醇存在下进行酸反应。 （b）分离形成的沉淀物; （c）通过在250-350℃的温度范围内通过热处理将分离的沉淀物中的有机碳含量<= 1.1重量％设定为热处理产物，添加3.0重量％的石墨 ，给出粉末X射线衍射图，其在2θ区域的特征是存在于28.5°的任何焦磷酸盐相的峰的高度与由于石灰在26.6°<= 0.1处的峰的高度之比; 和（d）将由步骤（c）获得的热处理产物成型为具有至少2mm的平均直径的颗粒; 从该方法获得的催化剂前体; 从催化剂前体制备催化剂的方法; 可从该方法获得的催化剂; 以及在该催化剂上制备马来酸酐的方法。

公开(公告)号：US20050256319A1

公开(公告)日：2005-11-17

申请号：US10522993

申请日：2003-07-22

申请人： Jens Weiguny ,  Wilhelm Ruppel ,  Mark Duda

发明人： Jens Weiguny ,  Wilhelm Ruppel ,  Mark Duda

IPC分类号： C07B61/00 ,  C07D307/60 ,  C07D307/36

CPC分类号： C07D307/60

摘要： Process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms by means of oxygen-containing gases at from 350 to 500° C. in the presence of a volatile phosphorus compound over a vanadium-, phosphorus- and oxygen-containing catalyst in a shell-and-tube reactor unit having at least one reaction zone cooled by means of a heat transfer medium, in which the temperature and/or the amount of the heat transfer medium flowing into the first (relative to the feed direction) reaction zone are set so that the mean temperature of the heat transfer medium in the first reaction zone TSB(1st zone), which is calculated as the mean of the inflow temperature and the outflow temperature of the heat transfer medium, is in accordance with the formulae (I) and (II) TSB(1st zone)≦TR(1st zone)−TSafety(1st zone)   (I) TSB, Ymax(1st zone)−TA(1st zone)≦TSB(1st zone)≦TSB, Ymax(1st zone)+TB(1st zone)   (II), where TR(1st zone) is the runaway temperature of the first reaction zone; TSafety(1st zone) is the safety temperature of the first reaction zone and has a value of 1° C.; TSB, Ymax(1st zone) is the mean temperature of the heat transfer medium in the first reaction zone at which the maximum maleic anhydride yield is achieved in the range TSB(1st zone)≦TR(1st zone); TA(1st zone) is 20° C.; and TB(1st zone) is 10° C.