Method for the preparation of polymer-metal cluster composite
    5.
    发明授权
    Method for the preparation of polymer-metal cluster composite 失效
    聚合物金属簇复合材料的制备方法

    公开(公告)号:US06284387B1

    公开(公告)日:2001-09-04

    申请号:US09514097

    申请日:2000-02-28

    申请人: Yukimichi Nakao

    发明人: Yukimichi Nakao

    IPC分类号: B32B1504

    摘要: Disclosed is a method for the preparation of a polymer-metal cluster composite material having usefulness as a non-linear optical material or high-modulus material. The method comprises bringing a polymeric resin into contact with vapor of a heavy metal compound such as an acetylacetonato complex compound of palladium, platinum or copper under a non-oxidizing atmosphere at a temperature higher than the glass transition temperature of the polymeric resin so that the metal compound vapor is dissolved into the polymeric resin in a glassy state and is in situ reduced into the form of an elementary metal forming clusters of the metal particles.

    摘要翻译: 公开了一种制备作为非线性光学材料或高模量材料有用的聚合物 - 金属簇复合材料的方法。 该方法包括在非氧化性气氛下,在高于聚合物树脂的玻璃化转变温度的温度下使聚合树脂与重金属化合物如钯,铂或铜的乙酰丙酮络合物的蒸气接触,使得 金属化合物蒸汽以玻璃状态溶解在聚合物树脂中,并原位还原为形成金属颗粒簇的基本金属的形式。

    Method for the recovery of gold value
    6.
    发明授权
    Method for the recovery of gold value 失效
    金价回收方法

    公开(公告)号:US5389124A

    公开(公告)日:1995-02-14

    申请号:US207075

    申请日:1994-03-08

    申请人: Yukimichi Nakao

    发明人: Yukimichi Nakao

    CPC分类号: C22B11/04 C22B7/00 Y02P10/212

    摘要: An efficient method is proposed for the recovery of gold value from a waste material containing scrap gold by utilizing a principle that metallic gold can be dissolved at elevated temperatures and specifically precipitated at low temperatures with good reversibility in and out of a specific unique liquid medium which is an organic solvent, e.g., acetonitrile, containing an ionic compound of a first halogen, e.g., quaternary ammonium halides, and an elementary form of a second halogen each in a specified concentration, of which at least either one of the first and second halogens is iodine. Namely, a gold-containing waste material is contacted at a high temperature with the liquid medium to have the gold value dissolved therein and the gold-containing solution is then cooled to a low temperature so that the gold value can be recovered in the form of precipitates in a high purity.

    摘要翻译: 提出一种有效的方法,通过利用金属金可以在高温下溶解并在低温下特异性沉淀的原理,从具有废金的废料回收金价,具有良好的可逆性进出特定的独特液体介质, 是一种有机溶剂,例如乙腈,其含有第一卤素的离子化合物,例如季铵卤化物,以及每种具有规定浓度的元素形式的第二卤素,其中第一和第二卤素中的至少一种 是碘。 也就是说,含金废料在高温下与液体介质接触以使金值溶解在其中,然后将含金溶液冷却至低温,使得金值可以以 沉淀高纯度。