Catalytic hydrogenation of unsaturated dinitriles
    6.
    发明授权
    Catalytic hydrogenation of unsaturated dinitriles 失效
    不饱和二腈的催化氢化

    公开(公告)号:US4311859A

    公开(公告)日:1982-01-19

    申请号:US213444

    申请日:1980-12-05

    CPC classification number: B01J23/464 C07C209/48

    Abstract: Unsaturated dinitriles are hydrogenated to saturated diamines using a rhodium catalyst on a silica support having a surface area larger than 275 m.sup.2 /g, a pore volume of from about 1.0 to 1.5 mL/g and an average pore size of from about 100 to about 175 A. The supported rhodium catalyst is prepared by a method which includes the steps of contacting a silica support having the characteristics described above with a solution or dispersion of rhodium or a reducible compound of rhodium, and then subjecting the impregnated silica support to vacuum treatment.

    Abstract translation: 使用表面积大于275m 2 / g,孔体积为约1.0至1.5mL / g,平均孔径为约100至约175的二氧化硅载体上的铑催化剂将不饱和二腈氢化为饱和二胺 A.负载的铑催化剂通过包括以下步骤的方法制备:将具有上述特征的二氧化硅载体与铑或可还原的铑化合物的溶液或分散体接触,然后使浸渍的二氧化硅载体进行真空处理。

    Biaryl production
    8.
    发明授权
    Biaryl production 失效
    双芳生产

    公开(公告)号:US4123470A

    公开(公告)日:1978-10-31

    申请号:US804125

    申请日:1977-06-06

    Abstract: Aromatic hydrocarbons are converted to biaryl compounds in a two-step process comprising hydroalkylation of the aromatic hydrocarbons to cycloalkyl aromatic hydrocarbons followed by dehydrogenation in the presence of a metal dehydrogenation catalyst and an acidic support to convert the cycloalkyl aromatic hydrocarbons to biaryl compounds. In one embodiment, benzene is hydroalkylated to cyclohexylbenzene, and the cyclohexylbenzene then dehydrogenated to biphenyl.

    Abstract translation: 芳族烃以两步法转化为联芳基化合物,包括将芳烃加氢烷化成环烷基芳烃,然后在金属脱氢催化剂和酸性载体存在下脱氢,将环烷基芳族烃转化为联芳基化合物。 在一个实施方案中,苯被加氢烷基化成环己基苯,然后将环己基苯脱氢成联苯。

    Polythiol sealants
    10.
    发明授权
    Polythiol sealants 失效
    聚硫醇密封剂

    公开(公告)号:US4060519A

    公开(公告)日:1977-11-29

    申请号:US662779

    申请日:1976-03-01

    CPC classification number: C08K3/06 C08K5/01 C08K5/02 Y10T428/28 Y10T428/2804

    Abstract: Naphthalene and alkylated naphthalenes are useful as sulfur-solubilizers in coating and sealant formulations based on polymercaptan-terminated polymers. In one embodiment, sealant and coating formulations are prepared by curing a mixture of (a) a polymercaptan-terminated polymer, (b) naphthalene or alkylated naphthalenes as sulfur-solubilizers containing dissolved sulfur, and (c) a curing agent.

    Abstract translation: 萘和烷基化萘可用作基于聚硫醇封端聚合物的涂料和密封剂配方中的增溶剂。 在一个实施方案中,通过将(a)聚硫醇封端的聚合物(b)萘或烷基化萘作为含有溶解硫的硫增溶剂和(c)固化剂的混合物固化来制备密封剂和涂料配方。

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