Synthesis of crystalline SAPO-37
    3.
    发明授权
    Synthesis of crystalline SAPO-37 失效
    结晶SAPO-37的合成

    公开(公告)号:US4898722A

    公开(公告)日:1990-02-06

    申请号:US683785

    申请日:1984-12-19

    摘要: An improved method for synthesis of improved silicoaluminophosphate SAPO-37 is provided. The method comprises (1) preparing a two-phase reaction mixture containing particular components and comprising both a liquid organic phase and a liquid aqueous phase; (2) heating the reaction mixture at a rate of from 5.degree. C. to 200.degree. C. per hour to a temperature of from 80.degree. C. to 200.degree. C.; agitating the reaction mixture in a manner sufficient to intimately admix said liquid organic and aqueous phases with each other; (4) once nucleation of the silicoaluminophosphate occurs, heating the agitated reaction mixture at rate of from 5.degree. C. to 200.degree. C. per hour to a temperature of from 100.degree. C. to 300.degree. C.; (5) maintaining the agitated reaction mixture at a temperature of from 100.degree. C. to 300.degree. C. and a pH of from 2 to 9 until crystals of the desired silicoaluminophosphate are formed; and (6) recovering silicoaluminophosphate material from the reaction mixture.

    摘要翻译: 提供了改进的硅铝磷酸SAPO-37的合成方法。 该方法包括(1)制备含有特定成分并包含液态有机相和液态水相的两相反应混合物; (2)将反应混合物以每小时5℃至200℃的速度加热到80℃至200℃的温度; 以足以使所述液态有机相和水相彼此充分混合的方式搅拌反应混合物; (4)一旦发生硅铝磷酸盐的成核,将搅拌的反应混合物以每小时5℃至200℃的速度加热到100℃至300℃的温度; (5)将搅拌的反应混合物保持在100℃至300℃的温度和2至9℃的pH,直到形成所需硅磷酸铝的晶体; 和(6)从反应混合物中回收硅铝磷酸盐物质。

    Process for forming highly dispersed metal on graphite
    10.
    发明授权
    Process for forming highly dispersed metal on graphite 失效
    在石墨上形成高度分散的金属的方法

    公开(公告)号:US4313853A

    公开(公告)日:1982-02-02

    申请号:US215514

    申请日:1980-12-11

    IPC分类号: B01J21/18 B01J35/10

    摘要: A process for forming a dispersion of metal selected from the group consisting essentially of Ni, Co, Mo and mixtures thereof on graphite comprising heating a composite of said metal on graphite at a temperature between about 800.degree.-975.degree. C. in an inert, hydrogen-containing atmosphere to form metal-containing channels in the graphite, raising the temperature to at least about 975.degree. C. so that the metal in the channels spreads out and chemically wets the surface of the channels as a film of metal phase, followed by contacting the so-formed metal-wetted, channeled composite with an oxidizing atmosphere to break up the film of metal phase into discrete metal particles. The average diameter of the particles is generally below about 25 A and the preferred metal is nickel.

    摘要翻译: 一种在石墨上形成选自Ni,Co,Mo及其混合物的金属分散体的方法,包括在约800-975℃的温度下在惰性气氛中加热所述金属在石墨上的复合物, 含氢气氛,在石墨中形成含金属的通道,将温度升高至至少约975℃,使得通道中的金属扩散并化学润湿通道表面作为金属相膜,随后 通过使如此形成的金属湿润的沟道复合材料与氧化气氛接触,将金属相的膜分解成离散的金属颗粒。 颗粒的平均直径通常低于约25,优选的金属是镍。