Method for regenerating a zeolitic catalyst
    6.
    发明授权
    Method for regenerating a zeolitic catalyst 有权
    再生沸石催化剂的方法

    公开(公告)号:US06380119B1

    公开(公告)日:2002-04-30

    申请号:US09424854

    申请日:2000-01-13

    IPC分类号: B01J2990

    摘要: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

    摘要翻译: 再生沸石催化剂的方法包括以下步骤:(I)在含有少于2体积%氧气的气氛中将部分或完全失活的催化剂加热至250-600℃,(II)将催化剂处理 250至800℃,优选350至600℃,含有0.1至4体积%的供氧物质或氧气或其两种或多种的混合物的气流和 (III)在250至800℃,优选350至600℃下处理催化剂,其中气流含有超过4至100体积%的供氧物质或氧气或 其两种或更多种的混合物。

    Method for regenerating a zeolitic catalyst
    8.
    发明授权
    Method for regenerating a zeolitic catalyst 有权
    再生沸石催化剂的方法

    公开(公告)号:US06710002B2

    公开(公告)日:2004-03-23

    申请号:US10061282

    申请日:2002-02-04

    IPC分类号: B01L2990

    摘要: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

    摘要翻译: 再生沸石催化剂的方法包括以下步骤:(I)在含有少于2体积%氧气的气氛中将部分或完全失活的催化剂加热至250-600℃,(II)将催化剂处理 250至800℃,优选350至600℃,含有0.1至4体积%的供氧物质或氧气或其两种或多种的混合物的气流和 (III)在250至800℃,优选350至600℃下处理催化剂,其中气流含有超过4至100体积%的供氧物质或氧气或 其两种或更多种的混合物。

    Preparation of aliphatic alpha, omega-aminonitriles
    10.
    发明授权
    Preparation of aliphatic alpha, omega-aminonitriles 失效
    脂肪族α,ω-氨基腈的制备

    公开(公告)号:US06114567A

    公开(公告)日:2000-09-05

    申请号:US122102

    申请日:1998-07-24

    摘要: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which(a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and(b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and(c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal.with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

    摘要翻译: 脂肪族α,ω-氨基腈通过脂肪族α,ω-二腈在升高的温度和超大气压下,在溶剂和催化剂存在下通过包括使用(a)含有基于化合物的催化剂 在选自镍,钴,铁,钌和铑的金属上,和(b)含有基于(a)0.01至25重量%的基于选自以下的金属的促进剂: 钯,铂,铱,锇,铜,银,金,铬,钼,钨,锰,铼,锌,镉,铅,铝,锡,磷,砷,锑,铋和稀土金属和(c) 基于(a)的0至5重量%的基于碱金属或碱土金属的化合物。 条件是当(b)是基于选自钛的金属的促进剂时,组分(a)不是基于铁或铁和选自钴,钌和铑的金属之一, ,锰,铬和钼,另外条件是,当选择仅基于钌或铑或钌和铑或镍和铑的化合物作为组分(a)时,可以省略促进剂(b)。