Process for the photocatalytic isomerization of olefins utilizing a
mixed metal cluster
    1.
    发明授权
    Process for the photocatalytic isomerization of olefins utilizing a mixed metal cluster 失效
    使用混合金属簇的烯烃的光催化异构化方法

    公开(公告)号:US4504371A

    公开(公告)日:1985-03-12

    申请号:US579258

    申请日:1984-02-13

    摘要: A novel process for the isomerization of olefins which employs a photocatalytic mixed metal cluster, wherein a solution of the olefin and the cluster is irradiated causing the cluster to become catalytically active and to isomerize the olefin. The photocatalytic mixed metal cluster has the empirical formula:(C.sub.n R.sub.n ').sub.a Fe.sub.b M.sub.c (CO).sub.d L.sub.ewherein n is five; wherein R' is selected from the group consisting of hydrogen, methyl, ethyl, acetyl, formyl, bromine, chlorine and fluorine; wherein M is a transition metal other than iron selected from the group consisting of Mo, Ru, Rh, Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; wherein L is a Group V type ligand; and further wherein a is from about one to five, b and c are from about one to five and b plus c is between two and six, d is from about five to 18 with the proviso that d is always equal to or greater than b plus c, and e is from about 0 to 18. A second novel process for the isomerization of olefins also employs a photocatalytic mixed metal cluster and irradiation wherein the cluster is first irradiated causing it to become catalytically active, and is then combined with an olefin to form a complex allowing the olefin to be isomerized.

    摘要翻译: 一种使用光催化混合金属簇的烯烃异构化的新方法,其中照射烯烃和簇的溶液,使得簇变成催化活性并使烯烃异构化。 光催化混合金属簇具有以下经验式:(CnRn')aFebMc(CO)dLe其中n为5; 其中R'选自氢,甲基,乙基,乙酰基,甲酰基,溴,氯和氟; 其中M是除了选自Mo,Ru,Rh,Sc,Ti,V,Cr,Mn,Co,Ni,Cu和Zn中的铁以外的过渡金属; 其中L是V型配体; 并且其中a为约1至5,b和c为约1至5,b加c为2至6,d为约5至18,条件是d总是等于或大于b 加上c,e为约0至18.烯烃异构化的第二个新方法还采用光催化混合金属簇和照射,其中首先照射簇使其变成催化活性,然后与烯烃 以形成允许烯烃异构化的络合物。

    Preparation of high surface area mixed metal oxides
    4.
    发明授权
    Preparation of high surface area mixed metal oxides 失效
    高表面积混合金属氧化物的制备

    公开(公告)号:US4724135A

    公开(公告)日:1988-02-09

    申请号:US922238

    申请日:1986-10-23

    IPC分类号: C01B13/18 C01G49/00 C01F1/00

    摘要: The process of producing high surface area mixed metal oxides comprising selecting a precursor characterized by the following formula:A.sub.x M.sub.a [M'(CN).sub.c ].sub.b.nH.sub.2 Ox=0-4;a=0-4;b=0.1-4;c=4-8;n=0-30;A=alkali, alkaline earth metal, Al, Si or mixtures;M=rare earth metals, transition metals or mixture thereof; andM'=transition metal capable of forming a cyanide (e.g. Group VIA-VIII A) or mixture thereof,and heating the precursor at a temperature rate of below 1.degree.C/minute in a controlled atmosphere consisting essentially of O.sub.2 and an inert gas to a temperature sufficient to decompose the precursor and produce the mixed metal oxide.

    摘要翻译: 制备高表面积混合金属氧化物的方法,包括选择由下式表征的前体:AxMa [M'(CN)c] b.nH 2 O x = 0-4; a = 0-4; b = 0.1-4; c = 4-8; n = 0-30; A =碱金属,碱土金属,Al,Si或混合物; M =稀土金属,过渡金属或其混合物; 和M'=能够形成氰化物的过渡金属(例如VIA-VIIIA族)或其混合物,并在基本上由O 2和惰性气体组成的受控气氛中以低于1℃/分钟的温度加热前体 达到足以分解前体并产生混合金属氧化物的温度。

    Photochemical reactor and method for carrying out photochemical
reactions therein
    5.
    发明授权
    Photochemical reactor and method for carrying out photochemical reactions therein 失效
    光化学反应器及其中进行光化学反应的方法

    公开(公告)号:US4517063A

    公开(公告)日:1985-05-14

    申请号:US579255

    申请日:1984-02-13

    申请人: Larry M. Cirjak

    发明人: Larry M. Cirjak

    IPC分类号: B01J19/12

    CPC分类号: B01J19/122

    摘要: An apparatus for carrying out a photochemical reaction incorporates a housing (11) and a lid (15), removably affixed thereto, which together define a reaction chamber (20). The lid has an axial opening (26) therein for the passage of a light beam therethrough. Means for transmitting light energy (30) within the reaction chamber (20) having a tapered end (31) optically communicating in a sealed disposition with the axial opening (26), extends into the reaction chamber (20) and terminates in a uniquely configured end (32). The light beam received by the tapered end (31) of the means for transmitting light energy (30) is controllably dispersed within the reaction chamber (20) by the uniquely configured end (32). As such, it is possible to use an external light source to activate a photochemical reaction of the reactants, and/or a photocatalyst, contained within the reaction chamber (20). Methods for carrying out photochemical reactions in the aforementioned apparatus are likewise embodied herein.

    摘要翻译: 用于进行光化学反应的装置包括壳体(11)和可拆卸地固定到其上的盖子(15),它们共同限定了反应室(20)。 盖子在其中具有轴向开口(26),以使光束通过其中。 用于在反应室(20)内透射光能(30)的装置,其具有以密封配置与轴向开口(26)光学连通的锥形端(31),延伸到反应室(20)中并终止于唯一配置 结束(32)。 用于传递光能(30)的装置的锥形端(31)所接收的光束被唯一配置的端部(32)可控地分散在反应室(20)内。 因此,可以使用外部光源来激活包含在反应室(20)内的反应物和/或光催化剂的光化学反应。 在上述装置中进行光化学反应的方法同样在本文中体现。

    Gallium promoted molybdenum vanadium-antimony-oxide based catalyst for
selective paraffin ammoxidation
    6.
    发明授权
    Gallium promoted molybdenum vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation 失效
    镓促进钼钒 - 锑氧化物基催化剂用于选择性石蜡氨氧化

    公开(公告)号:US6043185A

    公开(公告)日:2000-03-28

    申请号:US285384

    申请日:1999-04-02

    摘要: A catalyst useful in the manufacture of acrylonitrile or methacrylonitrile by the catalytic reaction in the vapor phase of a paraffin selected from propane and isobutane with molecular oxygen and ammonia by catalytic contact of the reactants in a reaction zone with a catalyst, the feed composition having a mole ratio of the paraffin to ammonia in the range of about 1.0 to 10 and a mole ratio of paraffin to oxygen in the range of about 1.0 to 10, wherein said catalyst has the elements in the proportions indicated by the empirical formula:MO.sub.a V.sub.b Sb.sub.c Ga.sub.d X.sub.e O.sub.xwhereX is one or more of As, Te, Se, Nb, Ta, W, Ti, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, B, In, Ce, Re, Ir, Ge, Sn, Bi, Y, Pr, an alkali metal, and an alkaline earth metal, preferably Nb, Ce, Fe, Ge, Sn, In, As, Se, and B, especially preferred being Nb,a equals 1,b equals 0.0 to 0.99, preferably 0.1 to 0.5,c equals 0.01 to 0.9, preferably 0.05 to 0.5,d equals 0.01 to 0.5, preferably 0.01 to 0.4,e equals 0.0 to 1.0, preferably 0.0 to 0.9,x is determined by the oxidation state of the cations present.

    摘要翻译: 一种可用于制备丙烯腈或甲基丙烯腈的催化剂,其通过催化反应在选自丙烷和异丁烷与分子氧和氨的气相中通过催化反应物在反应区与催化剂的接触而进行催化反应,所述进料组合物具有 石蜡与氨的摩尔比在约1.0至10范围内,石蜡与氧的摩尔比在约1.0至10的范围内,其中所述催化剂具有以经验式所示比例的元素:其中X 1 是As,Te,Se,Nb,Ta,W,Ti,Zr,Cr,Mn,Fe,Ru,Co,Rh,Ni,Pd,Pt,B,In,Ce,Re,Ir,Ge中的一种或多种 ,Sn,Bi,Y,Pr,碱金属和碱土金属,优选Nb,Ce,Fe,Ge,Sn,In,As,Se和B,特别优选Nb,a等于1,b等于 0.0〜0.99,优选为0.1〜0.5,c为0.01〜0.9,优选为0.05〜0.5,d为0.01〜0.5,优选为0.01〜0.4,e为0.0〜1.0,优选为0 0至0.9,x由存在的阳离子的氧化态决定。