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8 条记录 (耗时 0.009 秒)

    Process for preparing an oxidation catalyst
    3.
    发明授权
    Process for preparing an oxidation catalyst 失效
    制备氧化催化剂的方法

    公开(公告)号：US4563440A

    公开(公告)日：1986-01-07

    申请号：US577756

    申请日：1984-02-07

    申请人： Pio Forzatti ,  Ferruccio Trifiro ,  Pierluigi Villa

    发明人： Pio Forzatti ,  Ferruccio Trifiro ,  Pierluigi Villa

    IPC分类号： C07C5/333 ,  B01J23/84 ,  B01J23/843 ,  B01J23/88 ,  B01J27/057 ,  C07B61/00 ,  C07C1/00 ,  C07C11/12 ,  C07C45/35 ,  C07C47/22 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  B01J21/06

    CPC分类号： C07C253/26 ,  B01J23/84 ,  B01J23/8435 ,  B01J27/0576 ,  C07C45/35 ,  B01J2523/00 ,  Y02P20/52

    摘要： This invention provides a catalyst composition suitable for the gas phase oxidation, ammoxidation and oxidative dehydrogenation of olefins to unsaturated aldehydes, unsaturated nitriles and dienes respectively. The catalyst composition comprises, as active catalyst component, a solid solution of Fe, Sb and Ti oxides which has a rutile type crystal structure which is present in the composition in an amount of at least 80 wt. %, and which is represented by the empirical formula Fe.sub.x Sb.sub.y Ti.sub.z O.sub.w, wherein, for x=1, y is in the range of 0.5 to 10, z is in the range of 0.16 to 209 and w represents the number of oxygen atoms corresponding to the oxides of the above elements. The catalyst component is prepared by co-precipitating metal oxides from solutions of corresponding metal salts followed by calcination at 600.degree.-1000.degree. C. of the washed and dried precipitate.

    摘要翻译： 本发明提供一种催化剂组合物，其适用于分别将烯烃氧化，氨氧化和氧化脱氢成不饱和醛，不饱和腈和二烯烃。 作为活性催化剂组分，催化剂组合物包含Fe，Sb和Ti氧化物的固溶体，其具有金红石型晶体结构，其组合物中存在至少80wt。 ％，并且由经验式FexSbyTizOw表示，其中，对于x = 1，y在0.5至10的范围内，z在0.16至209的范围内，w表示对应于氧化物的氧原子数 的上述要素。 催化剂组分通过将相应金属盐溶液中的金属氧化物共沉淀，然后在600-1000℃煅烧洗涤和干燥的沉淀物来制备。

    Catalyst for the oxidation of methanol to formaldehyde and process for preparing the same
    5.
    发明授权
    Catalyst for the oxidation of methanol to formaldehyde and process for preparing the same 失效
    用于将甲醇氧化成甲醛的催化剂及其制备方法

    公开(公告)号：US4024074A

    公开(公告)日：1977-05-17

    申请号：US664199

    申请日：1976-03-05

    申请人： Luciano Cairati ,  Ferruccio Trifiro' ,  Pierluigi Villa

    发明人： Luciano Cairati ,  Ferruccio Trifiro' ,  Pierluigi Villa

    IPC分类号： C07C47/052 ,  B01J23/88 ,  B01J23/887 ,  B01J37/03 ,  C07B61/00 ,  C07C45/00 ,  C07C45/38 ,  C07C67/00

    CPC分类号： B01J37/03 ,  B01J23/8876 ,  C07C45/38 ,  B01J2523/00

    摘要： A catalyst active and selective in the oxidation of methanol to formaldehyde is prepared by mixing an aqueous molybdate solution with an aqueous solution of a ferric salt, while maintaining a Mo/Fe atomic ratio of from 1.6:1 to 2.2:1 in the mixture, heating the resulting suspension at 70.degree.-100.degree. C for at least 30 minutes, washing the resulting precipitate with water, drying said precipitate to reduce its water content to 2-8% by weight, reducing the dried precipitate to granules and drying the latter to completely remove water, impregnating the dried granules with an aqueous solution of a decomposable bismuth salt and drying and calcining the impregnated granules. The catalyst consists of granules of crystalline iron molybdate and molybdenum trioxide having on their surface an interaction product thereof with bismuth oxide, said molybdenum trioxide and said bismuth being present in an amount of 5-35 wt.% and 0.5-10 wt.%, respectively, with respect to the crystalline iron molybdate.

    摘要翻译： 通过将钼酸水溶液与铁盐水溶液混合，同时保持混合物中的Mo / Fe原子比为1.6:1至2.2:1，制备了将甲醇氧化成甲醛的活性和选择性的催化剂， 将所得悬浮液在70℃-100℃加热至少30分钟，用水洗涤所得沉淀物，干燥所述沉淀物以将其水含量降低至2-8重量％，将干燥的沉淀物还原成颗粒并干燥后者 完全除去水，用可分解的铋盐水溶液浸渍干燥的颗粒，并干燥并煅烧浸渍的颗粒。 催化剂由结晶钼酸钼和三氧化钼的颗粒组成，其表面上与氧化铋的相互作用产物，所述三氧化钼和所述铋以5-35重量％和0.5-10重量％的量存在， 分别相对于结晶的钼酸铁。

    Ammoxidation catalysts for fluidized/moving bed reactors
    6.
    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。

    Process for preparing a catalyst for the oxidation of methanol to formaldehyde
    8.
    发明授权
    Process for preparing a catalyst for the oxidation of methanol to formaldehyde 失效
    制备甲醇氧化甲醛催化剂的方法

    公开(公告)号：US3983073A

    公开(公告)日：1976-09-28

    申请号：US594891

    申请日：1975-07-10

    申请人： Ferruccio Trifiro ,  Pierluigi Villa ,  Luciano Cairati

    发明人： Ferruccio Trifiro ,  Pierluigi Villa ,  Luciano Cairati

    IPC分类号： B01J23/88 ,  B01J23/881 ,  C07B61/00 ,  C07C45/00 ,  C07C45/38 ,  C07C47/052 ,  C07C67/00

    CPC分类号： B01J23/881 ,  C07C45/38

    摘要： A catalyst active in the oxidation of methanol to formaldehyde is prepared by forming a suspension of an amorphous precipitate by mixing an aqueous molybdate solution with an aqueous solution of a ferric salt, while maintaining an atomic ratio Mo/Fe of at least 1.5:1 in the mixture, heating the suspension at 70.degree.-100.degree.C for at least 30 minutes, washing the resulting precipitate with water to remove the soluble salts and at least a part of the excess of soluble molybdate not transformed into iron molybdate, thereby to ensure in the washed solid an atomic ratio Mo/Fe of from 1.5:1 to 1.7:1, and drying the washed solid at a temperature not exceeding 120.degree.C for a period of at least 30 minutes.The catalyst consists of iron molybdate Fe.sub.2 (MoO.sub.4).sub.3 with an amount of free molybdenum trioxide ranging from zero to a value such that the atomic ratio Mo/Fe is from 1.5:1 to 1.7:1, and has a crystallinity degree of at least 90%.

    摘要翻译： 通过将钼酸盐水溶液与铁盐水溶液混合，同时保持至少1.5:1的原子比Mo / Fe，形成无定形沉淀物的悬浮液，从而制备甲醇氧化成甲醛的催化剂。 混合物，将悬浮液在70℃-100℃下加热至少30分钟，用水洗涤所得沉淀物以除去可溶性盐和至少一部分未转化成钼酸铁的可溶性钼酸盐，从而确保 在洗涤固体中，原子比Mo / Fe为1.5:1至1.7:1，并将洗涤的固体在不超过120℃的温度下干燥至少30分钟。