High surface area chrysotile and method of making same
    5.
    发明授权
    High surface area chrysotile and method of making same 失效
    高表面花岗岩及其制造方法

    公开(公告)号:US3652382A

    公开(公告)日:1972-03-28

    申请号:US3652382D

    申请日:1969-07-29

    申请人: FMC CORP

    发明人: GANCY ALAN B

    IPC分类号: C04B20/02 C03B37/00

    CPC分类号: C04B20/02 C04B14/40

    摘要: Chrysotile fibrils having high surface are obtained by (1) attriting chrysolite asbestos in the presence of sufficient dilute mineral acid to free the fibrils without significantly affecting the SiO2:MgO ratio; (2) treating the freed fibrils with sufficient mineral acid to form a layer of SiO2 on the fibril surface; (3) treating the acidified fibrils with alkali to dissolve the SiO2 layer, and (4) washing fibrils to remove excess alkali.

    摘要翻译: 具有高表面的温石棉原纤维通过以下方法得到:(1)在足够稀的无机酸存在下,将石英石棉粘合在一起,以消除原纤维,而不会显着影响SiO 2 :MgO比; (2)用足够的无机酸处理释放的原纤维,以在原纤维表面上形成SiO 2层; (3)用碱处理酸化的原纤维以溶解SiO 2层,(4)洗涤原纤维以除去过量的碱。