Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof
    11.
    发明申请
    Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof 失效
    用于生产马来酸酐的催化剂前体及其制备方法

    公开(公告)号:US20050222435A1

    公开(公告)日:2005-10-06

    申请号:US10507609

    申请日:2003-03-12

    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, by reacting vanadium pentoxide (I) in the presence of a primary or secondary, noncyclic or cyclic, unbranched or branched, saturated alcohol having from 3 to 6 carbon atoms (II) with a pentavalent or trivalent phosphorus compound (III) in a temperature range from 80 to 160° C. with stirring and subsequently filtering the resultant suspension, in which (a) the way in which the phosphorus compound (III) and the vanadium pentoxide (I) are combined in the presence of the alcohol (II), (b) the action of a stirring power of from 0.01 to 0.6 W/kg suspension, and/or (c) the filtration at a temperature from 65° C. to 160° C. are used to set a filtration resistance αH·η of

    摘要翻译: 通过在一次或二次存在下使五氧化二钒(I)反应,通过使具有至少四个碳原子的烃的非均相催化气相氧化来制备用于制备马来酸酐的钒,磷和氧催化剂前体的方法, 具有3至6个碳原子的非环状或环状,无支链或支链的饱和醇(II)与五价或三价磷化合物(III)在80至160℃的温度范围内搅拌并随后过滤得到的悬浮液, 其中(a)在醇(II)的存在下将磷化合物(III)和五氧化二钒(I)组合的方式,(b)搅拌功率为0.01至0.6W / kg悬浮液,和/或(c)在65℃至160℃的温度下进行过滤,以设定过滤阻力<50% / SUP> mPa.s / m 2; 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。

    PROCESS FOR SEPARATING OFF FUMARIC ACID AND OTHER MINOR COMPONENTS DURING THE PRODUCTION OF MALEIC ANHYDRIDE
    12.
    发明申请
    PROCESS FOR SEPARATING OFF FUMARIC ACID AND OTHER MINOR COMPONENTS DURING THE PRODUCTION OF MALEIC ANHYDRIDE 有权
    在生产无水异味时分离灭酸和其他微量元素的方法

    公开(公告)号:US20110021789A1

    公开(公告)日:2011-01-27

    申请号:US12935894

    申请日:2009-03-23

    IPC分类号: C07D307/60

    CPC分类号: C07C51/573 C07C57/145

    摘要: A process for decreasing fumaric acid deposits in the preparation of maleic anhydride by heterogeneously catalyzed oxidation of a hydrocarbon with molecular oxygen, in which the maleic anhydride is absorbed from the crude product mixture in an absorbent in an absorption column and desorbed again in a desorption column, the entirety or a portion of the absorbent depleted in maleic anhydride, for controlled precipitation of fumaric acid, being cooled and/or concentrated by evaporating a portion of the absorbent to such an extent that the difference between the concentration of fumaric acid in the recycle stream at the outlet of the desorption column under the conditions existing there and the equilibrium concentration of fumaric acid according to the solubility curve after the cooling and/or evaporation of a portion of the absorbent is greater than or equal to 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: 一种通过用分子氧异构催化氧化烃来减少马来酸酐制备中的富马酸沉积物的方法,其中马来酸酐在吸收塔中的吸收剂中从粗产物混合物中吸收并在解吸塔中再解吸 ,通过将一部分吸收剂蒸发而使富马酸的受控沉淀的全部或一部分吸收剂消耗马来酸酐,从而将富马酸的控制沉淀冷却和/或浓缩至使回收物中的富马酸浓度之间的差异 在存在的条件下在解吸塔的出口处的流,并且在一部分吸收剂的冷却和/或蒸发之后,根据溶解度曲线的富马酸的平衡浓度大于或等于250重量ppm, 作为固体沉淀的富马酸被完全或部分地从吸收剂循环系统中除去 em和富马酸贫乏的吸收剂被完全或部分地再循环到吸收塔。

    Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof
    13.
    发明申请
    Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof 有权
    用于生产马来酸酐的催化剂前体及其制备方法

    公开(公告)号:US20050222436A1

    公开(公告)日:2005-10-06

    申请号:US10507610

    申请日:2003-03-12

    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。

    Process for preparing indenes
    15.
    发明授权
    Process for preparing indenes 失效
    茚的制备方法

    公开(公告)号:US5789593A

    公开(公告)日:1998-08-04

    申请号:US812428

    申请日:1997-03-06

    摘要: The present invention relates to a process for preparing an indene, which involves reacting an indanone with hydrogen in the presence of a catalyst comprising one or more oxides, preferably metal oxides. Preferred oxides comprise elements from groups Ia, IIa, IIa, IVa, Va, VIa, Ib, IIb, IIIb, IVb, Vb, VIb, VIIb and VIII of the Periodic Table, or elements from the lanthanide group.

    摘要翻译: 本发明涉及一种制备茚的方法,该方法包括在包含一种或多种氧化物,优选金属氧化物的催化剂存在下使茚满酮与氢反应。 优选的氧化物包括元素周期表中的Ia,IIa,IIa,IVa,Va,VIa,Ib,IIb,IIIb,IVb,Vb,VIb,VIIb和VIII族元素,或来自镧系元素的元素。

    Process for the preparation of substituted 3-arylquinazoline-2,4-diones
    16.
    发明授权
    Process for the preparation of substituted 3-arylquinazoline-2,4-diones 失效
    取代的3-芳基喹唑啉-2,4-二酮的制备方法

    公开(公告)号:US5719284A

    公开(公告)日:1998-02-17

    申请号:US646678

    申请日:1996-05-10

    CPC分类号: C07D239/96

    摘要: The invention relates to a process for the preparation of substituted 3-arylquinazoline-2,4-diones of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined in claim 1 and Ar is ##STR2## where R.sup.5 to R.sup.9 are as defined in claim 1, by reacting a compound of the formula (II) ##STR3## with a compound Z in the presence of a catalyst, a ligand and a solvent, where Z is a) an anthranilic acid derivative of the formula (III) ##STR4## or b) an alcohol R.sup.10 --OH and where, in case b), the resulting carbamate is then reacted with an anthranilic acid derivative of the formula III.

    摘要翻译: 本发明涉及制备式(I)的取代的3-芳基喹唑啉-2,4-二酮的方法,其中R 1,R 2,R 3和R 4如权利要求1中所定义,Ar是 其中R 5至R 9如权利要求1所定义,通过在催化剂,配体和溶剂的存在下使式(II)化合物(II)与化合物Z反应,其中Z为 a)式(III)的邻氨基苯甲酸衍生物(III)或b)醇R10-OH,其中,在情况b)中,然后使所得氨基甲酸酯与式III的邻氨基苯甲酸衍生物反应。

    Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof
    17.
    发明授权
    Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof 失效
    用于生产马来酸酐的催化剂前体及其制备方法

    公开(公告)号:US07157403B2

    公开(公告)日:2007-01-02

    申请号:US10507609

    申请日:2003-03-12

    IPC分类号: B01J27/198 C07D307/60

    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, by reacting vanadium pentoxide (I) in the presence of a primary or secondary, noncyclic or cyclic, unbranched or branched, saturated alcohol having from 3 to 6 carbon atoms (II) with a pentavalent or trivalent phosphorus compound (III) in a temperature range from 80 to 160° C. with stirring and subsequently filtering the resultant suspension, in which (a) the way in which the phosphorus compound (III) and the vanadium pentoxide (I) are combined in the presence of the alcohol (II), (b) the action of a stirring power of from 0.01 to 0.6 W/kg suspension, and/or (c) the filtration at a temperature from 65° C. to 160° C. are used to set a filtration resistance αH·η of

    摘要翻译: 通过在一次或二次存在下使五氧化二钒(I)反应,通过使具有至少四个碳原子的烃的非均相催化气相氧化来制备用于制备马来酸酐的钒,磷和氧催化剂前体的方法, 具有3至6个碳原子的非环状或环状,无支链或支链的饱和醇(II)与五价或三价磷化合物(III)在80至160℃的温度范围内搅拌并随后过滤得到的悬浮液, 其中(a)在醇(II)的存在下将磷化合物(III)和五氧化二钒(I)组合的方式,(b)搅拌功率为0.01至0.6W / kg悬浮液,和/或(c)在65℃至160℃的温度下进行过滤,以设定过滤阻力<50% / SUP> mPa.s / m 2; 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酐的方法。

    Method for the production of a catalyst containing vanadium, phosphorus, and oxygen
    18.
    发明授权
    Method for the production of a catalyst containing vanadium, phosphorus, and oxygen 失效
    用于生产含有钒,磷和氧的催化剂的方法

    公开(公告)号:US07060649B2

    公开(公告)日:2006-06-13

    申请号:US10507601

    申请日:2003-03-12

    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 1n 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 1n/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 1n/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距离1&lt; N&gt;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℃,位于第二半 SUB> / 2,而位于催化剂前体的流动区域内的任何位置之间的气体温度的局部差异位于第二半 煅烧面积等于<= 5℃

    Method for producing maleic acid anhydride
    19.
    发明授权
    Method for producing maleic acid anhydride 有权
    马来酸酐生产方法

    公开(公告)号:US06803473B2

    公开(公告)日:2004-10-12

    申请号:US10220746

    申请日:2002-09-05

    IPC分类号: C07D30760

    摘要: In a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms using oxygen-containing gases in the presence of a volatile phosphorus compound over a catalyst comprising vanadium, phosphorus and oxygen in a shell-and-tube reactor unit having at least two successive cooled reaction zones, the temperature of the first reaction zone is from 350 to 450° C. and the temperature of the second and further reaction zones is from 350 to 480° C. and the temperature difference between the hottest reaction zone and the coolest reaction zone is at least 2° C.

    摘要翻译: 在使用含氧气体的挥发性磷化合物存在下,在包含钒,磷和氧的催化剂存在下,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方法, 管式反应器单元具有至少两个连续冷却的反应区,第一反应区的温度为350-450℃,第二反应区和其它反应区的温度为350-480℃,温度差为 最热的反应区和最冷的反应区为至少2℃