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    • 5. 发明授权
    • Method for preparing microcapsule containing soluble iron using fatty acid ester
    • 使用脂肪酸酯制备含有可溶性铁的微胶囊的方法
    • US06402997B1
    • 2002-06-11
    • US09867604
    • 2001-05-31
    • Hae-Soo KwakKyung-Mi Yang
    • Hae-Soo KwakKyung-Mi Yang
    • D01J1302
    • B01J13/06
    • Disclosed is a method for preparing a water soluble iron-containing microcapsule by use of fatty acid ester, which is advantageous in terms of shortened preparation process of emulsion and microcapsule, the use of tasteless and odorless fatty acid ester as emulsifier, and increased preparation yield of 95% or more while the microcapsule has the size of 2-5 &mgr;m. The method comprises preparing a mixture of a coating agent and iron by mixing polyglycerin stearate with ferric ammonium sulfate in the ratio of 5:1-25:1 and stirring at 500-1200×g for 30 seconds to 2 minutes, said polyglycerin stearate having been mixed with a predetermined amount of water and allowed to stand at 45-60° C. for 5-20 minutes, said polyglycerin stearate and ferric ammonium sulfate serving as the coating agent and iron, respectively; spraying said mixture to a dispersion of 0.01-0.1% surfactant in purified water of 5-10° C. using a sprayer; centrifuging the mixture-sprayed dispersion at 10,000-30,000×g for 5-20 minutes for phase separation; and mixing the lower phase with an equal volume of the dispersion and centrifuging this mixture once or twice.
    • 公开了一种使用脂肪酸酯制备水溶性含铁微胶囊的方法,其在乳液和微胶囊的制备方法缩短方面是有利的,使用无味无味脂肪酸酯作为乳化剂,并且提高了制备产率 为95%以上,而微胶囊的尺寸为2-5μm。 该方法包括通过将聚甘油硬脂酸酯与硫酸铁铵以5:1-25:1的比例混合并在500-1200xg下搅拌30秒至2分钟来制备涂层剂和铁的混合物,所述聚甘油硬脂酸酯已混合 用预定量的水分别在45-60℃静置5-20分钟,所述聚碳酸甘油酯和硫酸铁铵分别作为包衣剂和铁; 使用喷雾器将所述混合物喷雾至5-10℃纯净水中0.01-0.1%表面活性剂的分散体; 将混合物喷雾分散体以10,000-30,000xg离心5-20分钟进行相分离; 并将下相与等体积的分散体混合,并将该混合物离心一次或两次。