Catalytic composition
    1.
    发明授权
    Catalytic composition 失效
    催化组成

    公开(公告)号:US4711867A

    公开(公告)日:1987-12-08

    申请号:US833279

    申请日:1986-02-27

    摘要: A catalystic composition suitable for producing acrylonitrile from propylene, ammonia and oxygen (or oxygen-containing gas), which composition is represented by the following formula:(Mo).sub.a (W).sub.b (Bi).sub.c (Pb).sub.d (B).sub.e (Sb).sub.f (X).sub.g (O).sub.h(where: X is chromium or iron; a, b, c, d, e, f, g and h denote respectively number of atoms for molybdenum, tungsten, bismuth, lead, boron, antimony, X and oxygen, and wherein, if it is given that a+b=12, 0.ltoreq.b.ltoreq.7, 0.4.ltoreq.c.ltoreq.7, 2.ltoreq.d.ltoreq.12, 0.2/22.ltoreq.e/a.ltoreq.40/22, 0.ltoreq.f/a.ltoreq.25/22, and 0.ltoreq.g/a.ltoreq.3/22; and h denotes the number of oxygen necessary for satisfying the atomic valence for the individual constituent elements other than oxygen).

    摘要翻译: 适用于由丙烯,氨和氧(或含氧气体)生产丙烯腈的催化剂组合物,该组成由下式表示:(Mo)a(W)b(Bi)c(Pb)d(B)e (Sb)f(X)g(O)h(其中:X是铬或铁; a,b,c,d,e,f,g和h分别表示钼,钨,铋,铅的原子数, 硼,锑,X和氧,并且其中,如果给定a + b = 12,0,b = 7,0.4,c = 7,2, 12,0.2 / 22

    Process for producing crystalline oxide of vanadium-phosphorus system
    3.
    发明授权
    Process for producing crystalline oxide of vanadium-phosphorus system 失效
    生产钒 - 磷系结晶氧化物的工艺

    公开(公告)号:US5128299A

    公开(公告)日:1992-07-07

    申请号:US623091

    申请日:1990-12-06

    摘要: A process for producing a crystalline oxide of vanadium-phosphorus system, which comprises hydrothermally treating an aqueous medium containing (1) a tetravalent vanadium compound, (2) a pentavalent phosphorus compound, (3) a coordinate compound having at least two ligand atoms selected from the group consisting of oxygen atoms and nitrogen atoms and (4) a compound of at least one metal element selected from the group consisting of iron, nickel, cobalt and chromium, to form a crystalline oxide of vanadium-phosphorus system having an X-ray diffraction pattern shown in Table A: TABLE A ______________________________________ X-ray diffraction peaks (Anticathode: Cu--K.alpha.) 2.theta. (.+-.0.2.degree.) ______________________________________ 15.6.degree. 19.7.degree. 24.3.degree. 27.2.degree. 28.8.degree. 30.5.degree. 33.8.degree. ______________________________________

    摘要翻译: 一种制备钒 - 磷体系的结晶氧化物的方法,其包括水热处理含有(1)四价钒化合物的水性介质,(2)五价磷化合物,(3)选择至少两个配体原子的配位化合物 由氧原子和氮原子组成的组和(4)选自铁,镍,钴和铬中的至少一种金属元素的化合物,形成具有X射线衍射的钒 - 磷系的结晶氧化物, X-射线衍射峰 - (Antichodhode:Cu-Kα)-2°(+/- 0.2°)-15.6°19.7°24.3°-27.2°28.8°30.5°33.8° -

    Process for producing a vanadium-phosphorus oxide catalyst precursor
    6.
    发明授权
    Process for producing a vanadium-phosphorus oxide catalyst precursor 失效
    钒 - 磷氧化物催化剂前体的制备方法

    公开(公告)号:US5496787A

    公开(公告)日:1996-03-05

    申请号:US187715

    申请日:1994-01-28

    摘要: A process for producing a vanadium-phosphorus oxide-containing catalyst precursor, which comprises (a) introducing into an organic solvent a vanadium alkoxide as a pentavalent vanadium compound and a phosphorus compound in the presence of a reducing agent capable of reducing the pentavalent vanadium compound to a tetravalent state, (b) hydrolyzing at least a part of the vanadium alkoxide before or after the introduction of the phosphorus compound, and (c) heating the vanadium-containing liquid medium obtained in step (b), in the presence of the phosphorus compound to reduce at least a part of vanadium to a tetravalent state.

    摘要翻译: 一种含钒 - 氧化磷的催化剂前体的制备方法,其包括(a)在能够还原五价钒化合物的还原剂的存在下将有机溶剂中的钒醇盐作为五价钒化合物和磷化合物引入 (b)在引入磷化合物之前或之后水解至少一部分钒醇盐,和(c)在步骤(b)中获得的含钒液体介质中,在 磷化合物以将至少一部分钒还原成四价态。

    Process for producing a vanadium-phosphorus oxide catalyst precursor
    9.
    发明授权
    Process for producing a vanadium-phosphorus oxide catalyst precursor 失效
    钒 - 磷氧化物催化剂前体的制备方法

    公开(公告)号:US5591870A

    公开(公告)日:1997-01-07

    申请号:US480916

    申请日:1995-06-07

    摘要: A process for producing a vanadium-phosphorus oxide-containing catalyst precursor, which comprises (a) introducing into an organic solvent a vanadium alkoxide as a pentavalent vanadium compound and a phosphorus compound in the presence of a reducing agent capable of reducing the pentavalent vanadium compound to a tetravalent state, (b) hydrolyzing at least a part of the vanadium alkoxide before or after the introduction of the phosphorus compound, and (c) heating the vanadium-containing liquid medium obtained in step (b), in the presence of the phosphorus compound to reduce at least a part of vanadium to a tetravalent state.

    摘要翻译: 一种含钒 - 氧化磷的催化剂前体的制备方法,其包括(a)在能够还原五价钒化合物的还原剂的存在下将有机溶剂中的钒醇盐作为五价钒化合物和磷化合物引入 (b)在引入磷化合物之前或之后水解至少一部分钒醇盐,和(c)在步骤(b)中获得的含钒液体介质中,在 磷化合物以将至少一部分钒还原成四价态。