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    • 13. 发明专利
    • Manufacture of floating expandable sodium percarbonate
    • 挥发性可乐皂苷的制备
    • JPS59195505A
    • 1984-11-06
    • JP6812983
    • 1983-04-18
    • Kao CorpNippon Peroxide Co Ltd
    • NAKAGAWA YUUNOSUKEOSADA YASUOKIKUCHI HIDEO
    • C01B15/10C11D7/54
    • PURPOSE: To manufacture floating expandable sodium percarbonate having superior solubility at low temp. by adding a specified percentage of a nonionic surfactant to powdered sodium percarbonate, mixing them, and heating the mixture at a specified temp.
      CONSTITUTION: To sodium percarbonate powder of ≥100 mesh grain size is added 0.01W0.5wt% nonionic surfactant, they are mixed, and the mixture is heat- treated at 80W140°C to obtain floating expandable sodium percarbonate. Said sodium percarbonate powder used is prepd. by continuously feeding sodium carbonate and an aqueous soln. of hydrogen peroxide to mother liquor contg. sodium carbonate, water and hydrogen peroxide or further contg. a stabilizer such as sodium chloride. Said nonionic surfactant is an adduct of ≥5mol 8W22C straight or branched chain higher alcohol to ethylene oxide.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:制造在低温下具有优异溶解度的浮选可膨胀过碳酸钠。 通过向粉末状过碳酸钠中加入指定百分比的非离子表面活性剂,将其混合,并在特定温度下加热混合物。 构成:向> 100目粒度的过碳酸钠粉末加入0.01-0.5重量%的非离子表面活性剂,混合,将混合物在80-140℃下进行热处理,得到浮选的可膨胀过碳酸钠。 所用的过碳酸钠粉末是制备的。 通过连续加入碳酸钠和水溶液。 过氧化氢对母液的影响 碳酸钠,水和过氧化氢,或进一步的 稳定剂如氯化钠。 所述非离子表面活性剂是> = 5mol 8-22C直链或支链高级醇与环氧乙烷的加合物。