Process for preparing NaOH.3.5 H.sub.2 O crystals
    3.
    发明授权
    Process for preparing NaOH.3.5 H.sub.2 O crystals 失效
    制备NaOH的方法3.5.5 H {HD 2 {B O晶体

    公开(公告)号:US3983215A

    公开(公告)日:1976-09-28

    申请号:US489927

    申请日:1974-07-19

    IPC分类号: C01D1/30 C01D1/32

    CPC分类号: C01D1/30

    摘要: NaOH.3.5 H.sub.2 O crystals are prepared by cooling a slurry of 32 to 34% aqueous NaOH solution containing NaOH.3.5 H.sub.2 O seed crystals to below the temperature for saturating the aqueous NaOH solution with respect to NaOH.3.5 H.sub.2 O and separating the precipitated crystals.

    摘要翻译: 通过将含有NaOH.3.5H2O晶种的32-34%NaOH水溶液的浆液冷却至相对于NaOH.3.5H 2 O使NaOH水溶液饱和并使析出的晶体分离的温度以下来制备NaOH 3.5.5H 2 O晶体。