Process for the hydrogenation of maleic acid to 1,4-butanediol
    1.
    发明授权
    Process for the hydrogenation of maleic acid to 1,4-butanediol 失效
    马来酸氢化为1,4-丁二醇的方法

    公开(公告)号:US5473086A

    公开(公告)日:1995-12-05

    申请号:US373666

    申请日:1995-01-17

    摘要: Maleic acid, maleic anhydride or other hydrogenatable precursor are catalytically hydrogenated to 1,4-butanediol and tetrahydrofuran. It has been discovered that high yields of 1,4-butanediol are achieved when the hydrogenation catalyst comprises palladium, silver and rhenium on a carbon support and is prepared by the steps of(i) impregnating a carbon support with a source of palladium, silver and rhenium, wherein the source of palladium, silver and rhenium is at least one solution,(ii) after each impregnation step, drying the impregnated carbon support to remove solvent,(iii) heating the impregnated carbon support at a temperature of about 120.degree. C. to about 350.degree. C. under reducing conditions.The palladium in the catalyst is present in the form of crystallites having a particle size of less than 10 nm.

    摘要翻译: 将马来酸,马来酸酐或其它可氢化的前体催化氢化成1,4-丁二醇和四氢呋喃。 已经发现,当氢化催化剂在碳载体上包含钯,银和铼时,实现了高收率的1,4-丁二醇,并且通过以下步骤制备:(i)用钯,银浸渍碳载体 和铼,其中钯,银和铼的来源是至少一种溶液,(ii)在每个浸渍步骤之后,干燥浸渍的碳载体以除去溶剂,(iii)在约120℃的温度下加热浸渍的碳载体 在还原条件下,C至约350℃。 催化剂中的钯以粒径小于10nm的微晶的形式存在。

    Preparation of aliphatic carboxylic acid esters
    2.
    发明授权
    Preparation of aliphatic carboxylic acid esters 失效
    脂肪族羧酸酯的制备

    公开(公告)号:US4510320A

    公开(公告)日:1985-04-09

    申请号:US334484

    申请日:1981-12-24

    CPC分类号: C07C67/36 C07C69/14

    摘要: A process is provided for the production of aliphatic acetate esters and gaseous alkanes comprising contacting acetic acid and synthesis gas in the vapor phase at elevated temperature and pressure in the presence of a catalyst containing the mixed oxides of ruthenium and nickel, and optionally an alkali metal oxide and the oxides of cobalt, cadmium, zinc or mixtures thereof. Other carboxylic acids may be substituted for acetic acid as desired.

    摘要翻译: 提供了一种生产脂肪族乙酸酯和气态烷烃的方法,包括在含有钌和镍的混合氧化物的催化剂存在下,在升高的温度和压力下,使蒸气相中的乙酸和合成气,以及任选的碱金属 氧化物和钴,镉,锌的氧化物或其混合物。 其它羧酸可根据需要代替乙酸。

    Catalyst for the manufacture of acrylonitrile
    5.
    发明授权
    Catalyst for the manufacture of acrylonitrile 有权
    用于制造丙烯腈的催化剂

    公开(公告)号:US06965046B2

    公开(公告)日:2005-11-15

    申请号:US10213755

    申请日:2002-08-06

    摘要: A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula: AaBbCcFedBieCofCegSbhMomOx wherein A is at least one of Cr, P, Sn, Te, B, Ge, Zn, In, Mn, Ca, W, or mixtures thereof B is at least one of Li, Na, K, Rb, Cs, Tl, or mixtures thereof C is least one of Ni, Mg or mixtures thereof a is 0 to 4.0 b is 0.01 to 1.5 c is 1.0 to 10.0 d is 0.1 to 5.0 e is 0.1 to 2.0 f is 0.1 to 10.0 g is 0.1 to 2.0 h is 0.1 to 2.0 m is 12.0 to 18.0 and x is a number determined by the valence requirements of the other elements present. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.

    摘要翻译: 一种催化剂组合物,其包含铁,铋,钼,钴,铈,锑,镍或镁中的至少一种和锂,钠,钾,铷或铊中的至少一种的催化氧化物的络合物,其特征在于 以下经验公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> A B C < >>>>>>>>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<<<<<<<< 其中A是Cr,P,Sn中的至少一种,其中A是至少一个Cr,P,Sn ,Te,B,Ge,Zn,In,Mn,Ca,W或其混合物B是Li,Na,K,Rb,Cs,Tl或其混合物中的至少一种,或其混合物。C是Ni,Mg或 其混合物a为0〜4.0b为0.01〜1.5c为1.0〜10.0d为0.1〜5.0e为0.1〜2.0f为0.1〜10.0g为0.1〜2.0h为0.1〜2.0μm为12.0〜18.0,x为 一个数字由其他元素的价格要求确定。 该催化剂可用于分别选自丙烯,异丁烯或其混合物的烯烃与丙烯腈,甲基丙烯腈及其混合物的氨氧化反应的方法。

    Oxydehydrogenation process for preparing indenes
    10.
    发明授权
    Oxydehydrogenation process for preparing indenes 失效
    用于制备茚的氧化脱氢方法

    公开(公告)号:US4292456A

    公开(公告)日:1981-09-29

    申请号:US108259

    申请日:1979-12-28

    申请人: Oliver A. Kiikka

    发明人: Oliver A. Kiikka

    IPC分类号: C07C5/48 C07C5/32

    CPC分类号: C07C5/48

    摘要: An oxydehydrogenation process for producing indene and substituted indenes from indene precursors more saturated than indene is described and comprises contacting said precursor with oxygen and a catalyst comprising cobalt oxide and molybdenum oxide at an elevated temperature above about 300.degree. C. Preferably the reaction is conducted at a temperature of about 500.degree.-650.degree. C. for a period of from 0.1 to about 30 seconds.

    摘要翻译: 描述了用于从茚更饱和的茚前体制备茚和取代的茚的氧化脱氢方法,包括在高于约300℃的高温下使所述前体与氧和包含氧化钴和氧化钼的催化剂接触。优选地,反应在 温度为约500-65℃,时间为0.1至约30秒。