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    Titanium-vanadium-tin comprising catalyst and process for the preparation of phthalic anhydride
    2.
    发明授权
    Titanium-vanadium-tin comprising catalyst and process for the preparation of phthalic anhydride 失效
    包含催化剂的钛 - 钒 - 锡和制备邻苯二甲酸酐的方法

    公开(公告)号：US07557223B2

    公开(公告)日：2009-07-07

    申请号：US10517816

    申请日：2003-06-19

    申请人： Fabrizio Cavani ,  Carlo Fumagalli ,  Roberto Leanza ,  Gianluca Mazzoni ,  Barbara Panzacchi

    发明人： Fabrizio Cavani ,  Carlo Fumagalli ,  Roberto Leanza ,  Gianluca Mazzoni ,  Barbara Panzacchi

    IPC分类号： C07D307/77

    CPC分类号： C07C51/313 ,  B01J23/002 ,  B01J23/22 ,  B01J2523/00 ,  C07C51/265 ,  C07C63/16 ,  B01J2523/43 ,  B01J2523/47 ,  B01J2523/55

    摘要： Catalytic compositions of oxides of titanium, vanadium and tin that are suitable for the production of phthalic anhydride by oxidizing o-xylene and/or naphthalene in the gas phase. The catalysts exhibit excellent activity and selectivity. The catalyst contains 2 to 15 percent by weight (calculated as V2O5) of vanadium, 1 to 15 percent weight (calculated as SnO2) of tin and 70 to 97 percent by weight (calculated as TiO2) of titanium. In a preferred embodiment the catalyst also contains up to 5 percent by weight (calculated as M2O) of at least one alkali metal, preferably lithium, potassium or rubidium, and more preferably cesium. In an even more preferred embodiment, cesium is present in an amount of from 0.01 to 2 percent by weight (calculated as Cs2O).

    摘要翻译： 通过在气相中氧化邻二甲苯和/或萘，适合于生产邻苯二甲酸酐的钛，钒和锡的氧化物的催化组合物。 催化剂表现出优异的活性和选择性。 催化剂含有2至15重量％（以V 2 O 5计）钒，1至15重量％（以SnO 2计）和70至97重量％（以TiO 2计）。 在优选的实施方案中，催化剂还含有至多5重量％（以M 2 O计）至少一种碱金属，优选锂，钾或铷，更优选铯。 在甚至更优选的实施方案中，铯的存在量为0.01至2重量％（以Cs 2 O计算）。

    Ammoxidation catalysts for fluidized/moving bed reactors
    4.
    发明授权
    Ammoxidation catalysts for fluidized/moving bed reactors 失效
    用于流化/移动床反应器的氨氧化催化剂

    公开(公告)号：US06200926B1

    公开(公告)日：2001-03-13

    申请号：US08769446

    申请日：1996-12-19

    申请人： Gilbert Blanchard ,  Paolo Burattin ,  Fabrizio Cavani ,  Stéfano Masetti ,  Ferruccio Trifiro

    发明人： Gilbert Blanchard ,  Paolo Burattin ,  Fabrizio Cavani ,  Stéfano Masetti ,  Ferruccio Trifiro

    IPC分类号： B01J2300

    CPC分类号： B01J37/0203 ,  B01J23/002 ,  B01J23/14 ,  B01J23/18 ,  B01J23/22 ,  B01J23/8472 ,  B01J37/0205 ,  B01J37/08 ,  B01J2523/00 ,  B01J2523/43 ,  B01J2523/53 ,  B01J2523/55

    摘要： Solid catalysts suited for the fluidized/moving bed catalytic ammoxidation of alkanes comprise an active catalytic phase having the empirical formula (I): VSbaSnbTicFedEeOx  (I) in which E is an element which provides an oxide of rutile structure or an element which, in combination with V, Sb, Sn, Ti, Fe and/or with another element E, provides a phase of rutile or trirutile structure, or a solid solution of rutile structure, a is a whole or fractional number equal to or greater than 0.5, b, c, d and e, independently, are each a whole or fractional number ranging from 0 to 100, and x is a whole or fractional number determined by the oxidation state of the other elements, such active catalytic phase being deposited onto/into particulates of a solid and porous oxidic support therefor, and are produced by (a) impregnating the solid and porous oxidic support with a solution, in at least one saturated alcohol, of compounds of vanadium and antimony and, optionally, compounds of tin and/or titanium and/or of iron and/or of element E, (b) contacting the solid and porous oxidic support thus impregnated with an aqueous buffer solution having a pH ranging from about 6 to 8, (c) separating the solids from such aqueous buffer solution and drying same, and (d) calcining the dried solids in two stages.

    摘要翻译： 适用于流化/移动床的固体催化剂催化氨基氧化烷烃包括具有经验式（I）的活性催化相：其中E是提供金红石结构的氧化物的元素或与V，Sb ，Sn，Ti，Fe和/或另一元素E提供金红石或三元结构的相或金红石结构的固溶体，a是等于或大于0.5的整数或分数，b，c，d 和e独立地分别为0至100的整数或分数，x为由其它元素的氧化态确定的整数或分数，该活性催化相沉积在固体颗粒中， 通过（a）在至少一种饱和醇中的溶液中浸渍固体和多孔氧化载体来制备，其中钒和锑的化合物以及任选的锡和/或钛和/或 的铁和 /或元素E，（b）使由此浸渍的固体和多孔氧化物载体与pH范围为约6至8的水性缓冲溶液接触，（c）将该固体与该缓冲溶液分离并干燥，和 d）分两步焙烧干固体。

    Oxidation catalyst and process for its preparation
    7.
    发明授权
    Oxidation catalyst and process for its preparation 失效
    氧化催化剂及其制备方法

    公开(公告)号：US4849391A

    公开(公告)日：1989-07-18

    申请号：US110283

    申请日：1987-10-20

    申请人： Alfredo Riva ,  Fabrizio Cavani

    发明人： Alfredo Riva ,  Fabrizio Cavani

    IPC分类号： C07D307/33 ,  B01J21/06 ,  B01J23/22 ,  B01J27/198 ,  B01J35/10 ,  B01J37/03 ,  C01G23/053 ,  C01G31/00 ,  C07C51/265 ,  C07D307/89

    CPC分类号： B01J21/063 ,  B01J23/22 ,  B01J27/198 ,  B01J37/03 ,  C01G23/0536 ,  C01G31/00 ,  C07C51/265 ,  B01J35/1014 ,  C01P2006/12

    摘要： An oxidation catalyst formed from V.sub.2 O.sub.5 and TiO.sub.2 of rutile structure is obtained by a process which comprises the following stages:(a) preparation of a solution of Ti(IV) by dissolution (partial hydrolysis) of TiCl.sub.4 in an aqueous solution at a final pH below 1.0,(b) preparation of a solution of V(IV) by heating, in order to dissolve it, solid V.sub.2 O.sub.5 suspended in an aqueous oxalic acid solution,(c) precipitation of metatitanic acid from the Ti(IV) solution at a pH not higher than 1.3,(d) precipitation of vanadium oxide from the said V(IV) solution in the presence of the metatitanic acid obtained in (c), and(e) separation of the precipitate, drying and calcination thereof at an elevated temperature.The process provides a catalyst formed from V.sub.2 O.sub.5 and TiO.sub.2 of rutile structure, which has a specific surface area of the order of 10 to 60 m.sup.2 /g, is highly active, selective and stable under conditions of catalytic oxidation, especially under the conditions of the oxidation of o-xylene to phthalic anhydride.