Annular gap-type mill
    1.
    发明授权
    Annular gap-type mill 失效
    环形间隙式轧机

    公开(公告)号:US4735366A

    公开(公告)日:1988-04-05

    申请号:US917979

    申请日:1986-10-14

    申请人: Karl H. Hoffmann

    发明人: Karl H. Hoffmann

    IPC分类号: B02C17/04 B02C17/10 B02C17/16

    CPC分类号: B02C17/166

    摘要: An annular gap-type mill for continuously pulverizing in particular hard mineral substances comprises a grinding container (15) which accommodates an axially symmetrical inner body (13) whose outer surface defines with the inner surface of the grinding container (15) a grindimg gap (23). It is essential that the upper and lower region of the inner body (13) are tapered in opposite directions and adjoined to a common equatorial zone (24) of maxi diameter and that the outer surface of at least one of the regions is curved convexly. The grinding container (15) and/or the inner body (13) may be driven rotatingly. The annular gap-type mill is suited for wet and dry grinding and its quantitative and qualitative output is high.

    摘要翻译: 用于连续粉碎特别是硬质矿物质的环形间隙型磨机包括:研磨容器(15),其容纳轴向对称的内体(13),其外表面与研磨容器(15)的内表面限定有研磨间隙 23)。 重要的是,内体(13)的上下区域在相反方向上是锥形的,并且与最大直径的普通赤道区域(24)相邻,并且至少一个区域的外表面是凸形弯曲的。 研磨容器(15)和/或内部主体(13)可以旋转地驱动。 环形间歇式磨机适用于湿磨和干磨,其定量和定性输出量高。

    Method of producing acrylamide with a Raney copper catalyst
    3.
    发明授权
    Method of producing acrylamide with a Raney copper catalyst 失效
    用阮内铜催化剂制备丙烯酰胺的方法

    公开(公告)号:US3943171A

    公开(公告)日:1976-03-09

    申请号:US484176

    申请日:1974-06-28

    CPC分类号: B01J37/06 B01J25/00

    摘要: An improved process for making acrylamide from a composition of acrylonitrile and water utilizing an improved Raney copper catalyst. The catalyst is prepared by contacting particulate copper/aluminum alloy particles with an aqueous solution containing aliphatic hydrocarbon compound having at least two carbon atoms per molecule and further having at least two oxygen containing groups per molecule.

    摘要翻译: 使用改进的阮内铜催化剂从丙烯腈和水的组合物制备丙烯酰胺的改进方法。 催化剂是通过使颗粒状铜/铝合金颗粒与每分子具有至少两个碳原子的脂族烃化合物的水溶液接触并且每分子具有至少两个含氧基团而接触来制备的。