Method for preparing crystalline SiO.sub.2 modification
    6.
    发明授权
    Method for preparing crystalline SiO.sub.2 modification 失效
    制备结晶SiO2改性的方法

    公开(公告)号:US4300911A

    公开(公告)日:1981-11-17

    申请号:US124988

    申请日:1980-02-27

    IPC分类号: C01B37/02 C01B33/12 B01D9/00

    CPC分类号: C01B37/02

    摘要: A crystalline SiO.sub.2 --modification, which is characterized by an X-ray diffraction diagram having certain diffraction lines, and a process for the preparation of this crystalline SiO.sub.2 --modification by crystallizing reactive amorphous SiO.sub.2 under hydrothermal conditions in the presence of hexamethylenediamine. Sodium ions, phosphate ions and/or sulfate ions may be added for the crystallization.

    摘要翻译: 特征在于具有某些衍射线的X射线衍射图的结晶SiO 2改性,以及在六亚甲基二胺的存在下在水热条件下结晶反应性无定形SiO 2来制备该结晶SiO 2改性的方法。 可以加入钠离子,磷酸根离子和/或硫酸根离子进行结晶。

    Oxidation using multimetal molybdenum and vanadium oxides
    9.
    发明授权
    Oxidation using multimetal molybdenum and vanadium oxides 失效
    使用多金属钼和氧化钒进行氧化

    公开(公告)号:US6084126A

    公开(公告)日:2000-07-04

    申请号:US92181

    申请日:1998-06-05

    摘要: A method for gas-phase oxidation of an organic compound such as acrolein is provided, which includes oxidizing the organic compound with an oxidizing agent in the presence of a catalyst, to produce a product such as acrylic acid, wherein the catalyst includes a multimetal oxide material having at least two phases and of the formula III{A}.sub.p {B}.sub.q (III),wherein ##EQU1## M.sup.1, M.sup.2, a, b, c, x, M.sup.3, d, e, y, p and q are defined in the claims,which contains the moiety {A}.sub.p in the form of three-dimensional regions A which are delimited from their local environment owing to their chemical composition differing from their local environment and are of the chemical compositionA Mo.sub.12-a-b-c V.sub.a M.sub.b.sup.1 M.sub.c.sup.2 O.sub.xand the moiety {B}.sub.q in the form of three dimensional regions B which are delimited from their local environment owing to their chemical composition differing from their local environment and are of the chemical compositionB M.sub.12.sup.3 Cu.sub.d H.sub.e O.sub.ywhere the regions A and B are distributed relative to one another as in a mixture of finely divided A and finely divided B and, with the use of CuK.alpha. radiation (.lambda.=1.54178 .ANG.), the three-dimensional atomic arrangement of the regions A gives an X-ray powder diffraction spectrum (the intensity of the diffracted X-rays plotted as a function of twice the diffraction angle (2.sup..crclbar.)) which, in the 2.sup..crclbar. range from 5 to 50.degree., contains the diffraction lines A.sup.1, A.sup.3, A.sup.5, A.sup.9 and A.sup.10 but not more than diffraction lines A.sup.1 to A.sup.10 defined in the claims.

    摘要翻译: 提供了一种有机化合物如丙烯醛的气相氧化方法,其包括在催化剂存在下用氧化剂氧化有机化合物,以产生产物如丙烯酸,其中催化剂包括多金属氧化物 具有至少两相和式III {A} p {B} q(III)的材料,其中M1,M2,a,b,c,x,M3,d,e,y,p和q定义在 其包含三维区域A形式的部分{A} p,其由于其局部环境的化学组成不同而具有其局部环境,并且具有化学组成A Mo12-abc VaMb1Mc2Ox和部分{ B)以三维区域B的形式,由于其局部环境的化学组成不同于它们的局部环境而具有化学组成B M123CudHeOy,其中区域A和B相对于彼此分布,如混合物 的细分的A和细分的B,并且使用CuKα辐射(λ= 1.54178 ANGSTROM),区域A的三维原子排列得到X射线粉末衍射光谱(衍射的X射线衍射的强度) 在2〜( - )范围内,5〜50°的衍射角(2( - ))的函数为2倍的折射线,分别为衍射线A1,A3,A5,A9,A10,但不超过衍射 在权利要求中限定的线A1至A10。

    Polymetal oxide materials
    10.
    发明授权
    Polymetal oxide materials 失效
    多金属氧化物材料

    公开(公告)号:US5686373A

    公开(公告)日:1997-11-11

    申请号:US392322

    申请日:1995-02-22

    摘要: Polymetal oxide materials of the general formula I �A!.sub.p �B!.sub.q (I), where ##STR1## X.sup.1 is W, Nb, Ta, Cr and/or Ce, X.sup.2 is Cu, Ni, Co, Fe, Mn and/or Zn, X.sup.3 is Sb and/or Bi, X.sup.4 is Li, Na, K, Rb, Cs and/or H, X.sup.5 is Mg, Ca, Sr and/or Ba, X.sup.6 is Si, Al, Ti and/or Zr, X.sup.7 is Mo, W, V, Nb and/or Ta, a is from 1 to 8, b is from 0.2 to 5, c is from 0 to 23, d is from 0 to 50, e is from 0 to 2, f is from 0 to 5, g is from 0 to 50, h is from 4 to 30, i is from 0 to 20, x and y are each a number which is determined by the valency and frequency of the elements other than oxygen in I and p and q are non-zero numbers whose ratio p/q is from 160:1 to 1:1, and their use as catalysts.

    摘要翻译: 通式I [A] p [B] q(I)的多金属氧化物材料,其中A为MO12VaX1bX2cX3dX4eX5fX6gOx(Co相),B为X712CuhHiOy(关键相),X1为W,Nb,Ta,Cr和/或Ce ,X2是Cu,Ni,Co,Fe,Mn和/或Zn,X3是Sb和/或Bi,X4是Li,Na,K,Rb,Cs和/或H,X5是Mg,Ca,Sr和/ 或Ba,X 6为Si,Al,Ti和/或Zr,X 7为Mo,W,V,Nb和/或Ta,a为1〜8,b为0.2〜5,c为0〜23, d为0〜50,e为0〜2,f为0〜5,g为0〜50,h为4〜30,i为0〜20,x和y分别为 由I中除氧之外的元素的价态和频率确定,p和q是比值p / q为160:1至1:1的非零数,并且它们用作催化剂。