Corrosion resistant amorphous chromium alloy compositions
    21.
    发明授权
    Corrosion resistant amorphous chromium alloy compositions 失效
    耐腐蚀无定形铬合金组合物

    公开(公告)号:US4696703A

    公开(公告)日:1987-09-29

    申请号:US755247

    申请日:1985-07-15

    CPC分类号: C22C45/006

    摘要: An amorphous metal alloy composition exhibiting corrosion resistance in acidic environments of the formula:Cr.sub.a M.sub.b B.sub.c C.sub.d R.sub.ewhereinM is at least one metal selected from the group consisting of Mo, W, Nb and Ta;R is at least one element selected from the group consisting of N, P, As, S and Se; andwhereina ranges from about greater than 0.4 to about 0.6;b ranges from about 0.15 to about less than 0.4; andc ranges from zero to about 0.16.d ranges from zero to about 0.2; ande ranges from zero to about 0.3;with the proviso that the sum of (c+d+e) ranges from about 0.04 to about 0.35.

    摘要翻译: 一种在酸性环境中具有耐腐蚀性的无定形金属合金组合物,其结构式如下:CraMbBcCdRe其中M是选自Mo,W,Nb和Ta中的至少一种金属; R是选自N,P,As,S和Se中的至少一种元素; 并且其中a在约大于0.4至约0.6的范围内; b在约0.15至约小于0.4的范围内; c范围从零到大约0.16。 d范围从零到约0.2; e范围从0到约0.3; 条件是(c + d + e)的和为约0.04至约0.35。

    Process for making adiponitrile precursors
    22.
    发明授权
    Process for making adiponitrile precursors 失效
    制备己二腈前体的方法

    公开(公告)号:US4604244A

    公开(公告)日:1986-08-05

    申请号:US603257

    申请日:1984-04-23

    CPC分类号: C07C255/00

    摘要: Disclosed is the reaction of propylene with acrylonitrile or acrylamide to make a cyano- or amidopentene and reacting that compound with NH.sub.3 and O.sub.2 to form mucononitrile or 5-cyano-2,4-pentadiene amide. Also disclosed is a process which comprises contacting a reactant of the formula H--(CH.sub.2).sub.a --(CH.dbd.CH)--(CH.sub.2).sub.b X with oxygen and ammonia to thereby form a product of the formula NC--CH.dbd.CH--CH.dbd.CH--X wherein X is --CN or --CONH.sub.2 and each of a and b are zero or an integer from 1 to 3 such that a+b=3.

    摘要翻译: 公开了丙烯与丙烯腈或丙烯酰胺反应以制备氰基或酰胺基戊烯,并使该化合物与NH 3和O 2反应形成粘腈或5-氰基-2,4-戊二烯酰胺。 还公开了一种方法,其包括使式H-(CH 2)a - (CH = CH) - (CH 2)b X的反应物与氧和氨接触,从而形成式NC-CH = CH-CH = CH-X,其中X是-CN或-CONH 2,a和b各自为0或1至3的整数,使得+ b = 3。

    Process for the manufacture of acrylonitrile and methacrylonitrile
    24.
    发明授权
    Process for the manufacture of acrylonitrile and methacrylonitrile 失效
    制备丙烯腈和甲基丙烯腈的方法

    公开(公告)号:US4503001A

    公开(公告)日:1985-03-05

    申请号:US373904

    申请日:1982-05-03

    摘要: Monoolefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and a molecular oxygen-containing gas in the presence of a catalyst containing the oxides of iron, bismuth, molybdenum, and cobalt or nickel or both, and optionally an oxide of at least one element selected from the group consisting of the alkali metals, rare earth metals, tantalum and niobium, and optionally one or more of the oxides of the elements selected from the group consisting of phosphorus and arsenic.

    摘要翻译: 通过使烯烃,氨和含分子氧气体的混合物在含铁氧化物,铋的催化剂存在下,分别将丙烯和异丁烯等单烯烃转化为相应的不饱和腈,丙烯腈和甲基丙烯腈 ,钼和钴或镍或两者,以及任选的选自碱金属,稀土金属,钽和铌中的至少一种元素的氧化物,以及任选的一种或多种选自以下的元素的氧化物: 由磷和砷组成的组。