Fumed silica modified catalyst
    1.
    发明授权
    Fumed silica modified catalyst 失效
    气相二氧化硅改性催化剂

    公开(公告)号:US4632916A

    公开(公告)日:1986-12-30

    申请号:US754752

    申请日:1985-07-15

    摘要: An improved vanadium/phosphorus catalyst for the oxidation of n-butane to maleic anhydride is disclosed. Preferably, the catalyst contains a promoter. A process for the oxidation of n-butane to maleic anhydride using the improved catalyst is also disclosed.

    摘要翻译: 公开了用于将正丁烷氧化成马来酸酐的改进的钒/磷催化剂。 优选地,催化剂含有助催化剂。 还公开了使用改进的催化剂将正丁烷氧化成马来酸酐的方法。

    Catalyst for vapor phase oxidation of n-butane to maleic anhydride
    2.
    发明授权
    Catalyst for vapor phase oxidation of n-butane to maleic anhydride 失效
    用于将正丁烷气相氧化成马来酸酐的催化剂

    公开(公告)号:US4442226A

    公开(公告)日:1984-04-10

    申请号:US421467

    申请日:1982-09-22

    摘要: Improved vanadium/phosphorus oxide catalyst for the vapor phase oxidation of n-butane to maleic anhydride, and the use of said catalyst to prepare maleic anhydride, said catalyst containing the nonpost-deposited promoter comprising silicon and at least one of indium, antimony and tantalum.

    摘要翻译: 改进的钒/磷氧化物催化剂用于正丁烷到马来酸酐的气相氧化,以及使用所述催化剂制备马来酸酐,所述催化剂含有非淀积促进剂,其包含硅和铟,锑和钽中的至少一种 。

    Preparation of furan
    3.
    发明授权
    Preparation of furan 失效
    呋喃的制备

    公开(公告)号:US4322358A

    公开(公告)日:1982-03-30

    申请号:US85494

    申请日:1979-10-17

    摘要: Catalytic vapor phase process wherein the feed stream comprising, on a molar basis, the sum of which is 100%, 10-32% of at least one linear unsaturated C.sub.4 -hydrocarbon selected from 1-butene, 2-butene and 1,3-butadiene, 10-25% oxygen, 3-30% water and 13-77% inert diluent, is contacted with a modified bismuth molybdenum oxide catalyst at 350.degree.-600.degree. C. at a pressure of at least 1 atmosphere (about 100 kPa) for 0.1-10 seconds, said catalyst being selected from:(a) BiMo.sub.a M.sub.b Q.sub.c R.sub.d O.sub.x wherein M is at least one element selected from In, Ce, Cr, Fe and Cu, Q is at least one element selected from V, P, Sb and Te, R is Na or Ag, a is 0.7-60.0, b is 0.1-33.0, c is 0-7.0, d is 0-1.5 and x is such a number as is necessary to satisfy the valences of the elements, with the proviso that a/1+b.gtoreq.0.5 and a/1+b+c.gtoreq.0.19 and the proviso that c>0 when d>0; and(b) BiMo.sub.a As.sub.b Z.sub.c O.sub.x wherein Z is at least one element selected from Na and Ca, a is 1.3-2.0, b is 0.1-0.3, c is 0.3-0.7 and x is such a number as is necessary to satisfy the valences of the elements, to produce an off-gas containing at least 1% furan.

    摘要翻译: 催化气相方法,其中进料流以摩尔为基准,其总和为100%,10-32%的至少一种选自1-丁烯,2-丁烯和1,3-丁烯的线性不饱和C 4烃, 丁二烯,10-25%氧气,3-30%水和13-77%惰性稀释剂的混合物在氧化铋氧化物催化剂在350℃-600℃下以至少1个大气压(约100kPa) )为0.1-10秒,所述催化剂选自:(a)BiMoaMbQcRdOx,其中M为选自In,Ce,Cr,Fe和Cu中的至少一种元素,Q为选自V,P,Sb和 Te,R是Na或Ag,a是0.7-60.0,b是0.1-33.0,c是0-7.0,d是0-1.5,x是满足元素价态所必需的数, 条件是a / 1 + b> / = 0.5和a / 1 + b + c> = 0.19,条件是当d> 0时c> 0; 和(b)BiMoaAsbZcOx其中Z是选自Na和Ca中的至少一种元素,a是1.3-2.0,b是0.1-0.3,c是0.3-0.7,x是满足式 以产生含有至少1%呋喃的废气。

    Process for oxidation of N-butane to maleic anhydride
    4.
    发明授权
    Process for oxidation of N-butane to maleic anhydride 失效
    N-丁烷氧化成马来酸酐的方法

    公开(公告)号:US4699985A

    公开(公告)日:1987-10-13

    申请号:US874138

    申请日:1986-06-13

    摘要: An improved vanadium/phosphorus catalyst for the oxidation of n-butane to maleic anhydride is disclosed. Preferably, the catalyst contains a promoter. A process for the oxidation of n-butane to maleic anhydride using the improved catalyst is also disclosed.

    摘要翻译: 公开了用于将正丁烷氧化成马来酸酐的改进的钒/磷催化剂。 优选地,催化剂含有助催化剂。 还公开了使用改进的催化剂将正丁烷氧化成马来酸酐的方法。

    Vapor phase oxidation of n-butane to maleic anhydride
    5.
    发明授权
    Vapor phase oxidation of n-butane to maleic anhydride 失效
    正丁烷到马来酸酐的气相氧化

    公开(公告)号:US4371702A

    公开(公告)日:1983-02-01

    申请号:US349305

    申请日:1982-02-16

    摘要: Improved vanadium/phosphorus oxide catalyst for the vapor phase oxidation of n-butane to maleic anhydride, and the use of said catalyst to prepare maleic anhydride, said catalyst containing the nonpost-deposited promoter comprising silicon and at least one of indium, antimony and tantalum.

    摘要翻译: 改进的钒/磷氧化物催化剂用于正丁烷到马来酸酐的气相氧化,以及使用所述催化剂制备马来酸酐,所述催化剂含有非淀积促进剂,其包含硅和铟,锑和钽中的至少一种 。