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    Process for manufacture of calcium hydrochlorite
    2.
    发明授权
    Process for manufacture of calcium hydrochlorite 失效
    氯酸钙生产工艺

    公开(公告)号：US3895099A

    公开(公告)日：1975-07-15

    申请号：US34012173

    申请日：1973-03-12

    申请人： OLIN CORP

    发明人： SAKOWSKI WALTER J

    IPC分类号： C01B11/06 ,  C01B15/03 ,  C01F11/02 ,  D06L3/06 ,  C01D3/04

    CPC分类号： C01B11/064 ,  C01B15/03 ,  C01F11/02 ,  D06L4/23

    摘要： A continuous process for the manufacture of calcium hypochlorite in which an aqueous slurry of lime and sodium hypochlorite is chlorinated in a mixing zone to form a sodium chloride solution containing large crystals of calcium hypochlorite which are readily separated and dried. The resulting solution containing some dissolved calcium hypochlorite is reacted with an alkali metal hydroxide to precipitate lime, which is separated and recycled to the mixing zone slurry. The lime-free solution may be used as bleach liquor or processed to precipitate solid salt useful in the preparation of brine. The remaining solution is recycled to the mixing zone slurry. Purification of fresh lime is also disclosed. The process provides an improved separation of calcium hypochlorite and sodium chloride, and recycles all solutions to minimize pollution of water resources.

    摘要翻译： 一种用于制造次氯酸钙的连续方法，其中将石灰和次氯酸钠的含水浆料在混合区中氯化以形成容易分离和干燥的含有次氯酸钙大晶体的氯化钠溶液。 将含有一些溶解的次氯酸钙的所得溶液与碱金属氢氧化物反应以沉淀出石灰，将其分离并再循环至混合区浆液。 无石灰溶液可用作漂白液或加工以沉淀用于制备盐水的固体盐。 将剩余的溶液再循环到混合区浆料中。 还公开了新鲜石灰的净化。