Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof
    61.
    发明授权
    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:US07169732B2

    公开(公告)日:2007-01-30

    申请号:US10507610

    申请日:2003-03-12

    IPC分类号: B01J27/18 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, 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。

    Method for forming photocatalytic apatite film
    63.
    发明申请
    Method for forming photocatalytic apatite film 有权
    形成光催化磷灰石膜的方法

    公开(公告)号:US20050230241A1

    公开(公告)日:2005-10-20

    申请号:US11141030

    申请日:2005-06-01

    摘要: A method for forming a photocatalytic apatite includes a target production step (S12) for producing a sputtering target that contains photocatalytic apatite, and a sputtering step (S13) for forming a photocatalytic apatite film on a substrate by sputtering using the target. A firing step (S11) for firing the photocatalytic apatite is conducted before the sputtering step so as to increase the crystallinity of the photocatalytic apatite.

    摘要翻译: 形成光催化磷灰石的方法包括用于制造含有光催化磷灰石的溅射靶的靶制备步骤(S12)和用于通过使用靶溅射在基片上形成光催化磷灰石膜的溅射步骤(S13)。 在溅射步骤之前进行用于烧制光催化磷灰石的烧制步骤(S11),以提高光催化磷灰石的结晶度。

    Process for the preparation of formaldehyde
    66.
    发明授权
    Process for the preparation of formaldehyde 失效
    甲醛制备方法

    公开(公告)号:US5990358A

    公开(公告)日:1999-11-23

    申请号:US29853

    申请日:1998-03-13

    摘要: A process for preparing formaldehyde by oxidative dehydrogenation of methanol comprises passing a gas mixture (i) comprisinga) from 0.1 to 50% by volume of methanol,b) from 0.1 to 30% by volume of oxygen,c) from 0 to 50% by volume of nitrogen oxide andd) from 0 to 60% by volume of water at from 150 to 800.degree. C. through a phosphorus-doped silver catalyst fixed bed (a) and applying from 0.01 to 100 ppm by weight of phosphorus, based on the phosphorus-doped silver catalyst fixed bed, in the form of a finely divided phosphorus compound having a melting point or decomposition temperature of more than 500.degree. C. (phosphorus compound P) to the phosphorus-doped silver catalyst fixed bed (a) per kg of methanol which is passed through in the form of the gas mixture (i) per cm.sup.2 of the cross-sectional area of the phosphorus-doped silver catalyst fixed bed (a).

    摘要翻译: PCT No.PCT / EP97 / 00615 Sec。 371日期1998年3月13日 102(e)1998年3月13日PCT 1997年2月11日提交PCT公布。 公开号WO97 / 30015 PCT 日期1997年8月21日一种通过甲醇的氧化脱氢制备甲醛的方法包括通过一种气体混合物(i),其包含a)0.1至50体积%的甲醇,b)0.1至30体积%的氧,c) 0至50体积%的氮氧化物和d)0至60体积%的水,在150至800℃下通过磷掺杂的银催化剂固定床(a),并通过以下方式施加0.01至100ppm 以磷掺杂银催化剂固定床为基础,以熔点或分解温度高于500℃的细分磷化合物(磷化合物P)与磷掺杂银催化剂的形式, 固定床(a)每公斤甲醇,其以每平方厘米磷掺杂银催化剂固定床(a)的横截面面积的气体混合物(i)的形式通过。

    Dehydration catalyst and process for producing a monoalkylether of a
dihydric phenolic compound using same
    67.
    发明授权
    Dehydration catalyst and process for producing a monoalkylether of a dihydric phenolic compound using same 失效
    脱水催化剂和使用其制备二羟基酚类化合物的单烷基醚的方法

    公开(公告)号:US5977416A

    公开(公告)日:1999-11-02

    申请号:US58327

    申请日:1998-04-09

    摘要: A dehydration catalyst useful for producing a monoalkylether of dihydric phenolic compound by a dehydration reaction of a dihydric phenolic compound with a lower alkyl alcohol with a high conversion at a high selectivity, comprises at least one inorganic substance of the empirical formula (I):Al.sub.a P.sub.b Ti.sub.c Si.sub.d X.sub.e O.sub.f (I)wherein X represents a member selected from the group consisting of (1) an antimony and/or a bismuth atom, and (2) a sulfur atom, a, b, c, d, e and f respectively represent the numbers of Al, P, Ti, Si, X and 0 atoms, the atomic ratio a:b is 1:1.0 to 1.9, the atomic ratio a:c is 1:0.05 to 0.5, the atomic ratio a:d is 1:0.05 to 0.2, the atomic ratio a:e is 1:0.01 to 0.3 when X represents antimony and/or bismuth atom and 1:0.004 to 0.015 when X represents a sulfur atom, and the atomic ratio a:f is 1:4.1 to 8.4.

    摘要翻译: 通过二羟基酚类化合物与高级选择性的高转化率的低级烷基醇的脱水反应生产二羟基酚类化合物的单烷基醚的脱水催化剂包含至少一种经验式(I)的无机物质:Ala (I)其中X表示选自(1)锑和/或铋原子的成员,(2)硫原子,a,b,c,d,e和f 分别表示Al,P,Ti,Si,X和0原子的数量,原子比a:b为1:1.0〜1.9,原子比a:c为1:0.05〜0.5,原子比a:d 为1:0.05〜0.2,当X表示锑和/或铋原子时,原子比a:e为1:0.01〜0.3,当X表示硫原子时为1:0.004〜0.015,原子比a:f为1 :4.1〜8.4。

    Preparation of amines
    70.
    发明授权
    Preparation of amines 失效
    胺的制备

    公开(公告)号:US5817871A

    公开(公告)日:1998-10-06

    申请号:US921769

    申请日:1997-08-15

    摘要: A process for preparing an amine by catalytic reaction of an olefin with ammonia or a primary or secondary amine by contacting a mixture of the reactants in a reactor at 200.degree. to 400.degree. C. and an elevated pressure up to 700 bar in the presence of a catalyst consisting essentially of an X-ray amorphous (non-crystalline) mesoporous catalyst, some of which may have a microporous non-crystalline content. The catalyst has the composition a MO.sub.2 * b Q.sub.2 O.sub.3 * c P.sub.2 O.sub.5 where Q is at least one of the trivalent elements aluminum, boron, chromium, iron or gallium, and M is at least one of the tetravalent elements silicon, titanium or germanium. The molar ratio of a:b is from 0.5:1 to 1000:1 and the molar ratio of c:b is from 0 to 2:1. As prepared and used in the process, this non-crystalline catalyst has a specific BET surface area of from 200 to 1000 m.sup.2 /g.

    摘要翻译: 通过使烯烃与氨或伯胺或仲胺进行催化反应来制备胺的方法,该方法是将反应物的混合物在200-400℃的反应器和高达700巴的升高的压力下反应, 主要由X射线无定形(非结晶)介孔催化剂组成的催化剂,其中一些可能具有微孔非晶体含量。 催化剂具有以下组成:MO2 * b Q2O3 * c P2O5其中Q是三价元素铝,硼,铬,铁或镓中的至少一种,M是四价元素硅,钛或锗中的至少一种。 a:b的摩尔比为0.5:1-1000:1,c:b的摩尔比为0-2:1。 在该方法中制备和使用时,该非结晶催化剂的BET比表面积为200-1000m2 / g。