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    • 4. 发明授权
    • PROCESS FOR THE PREPARATION OF SODIUM SALT OF IBUPROFEN OF DIFFERENT PARTICLE SIZES
    • VERFAHREN ZUR HERSTELLUNG VON IBUPROFEN-NATRIUMSALZ MIT VERSCHIEDENENPARTIKELGRÖSSEN
    • EP2054367B1
    • 2017-03-22
    • EP07841187.3
    • 2007-08-22
    • SI Group, Inc.
    • PHAN, Hao, V.
    • C07C51/41C07C51/44C07C51/46C07C51/47C07C57/30
    • C07C51/44C07C51/412C07C51/47Y10T428/2982C07C57/30
    • A free-flowing hydrated sodium salt of ibuprofen of controlled median particle size and water content is provided. It can be produced by adding aqueous NaOH to a non-boiling solution or slurry of ibuprofen in an organic solvent that can be distilled along with water at a temperature in the range of 50 to 120° C. The rate of NaOH addition is at a rate that does not cause the resultant reaction mixture to boil before the addition has been completed. After completing the addition, the water is removed with some of the organic solvent by distillation. After cooling, the hydrated sodium salt of ibuprofen is recovered from the resultant slurry. The process enables the median particle size of the sodium salt of ibuprofen formed to be controlled by selection and use of a predetermined effective concentration of NaOH in the aqueous NaOH solution used.
    • 提供了控制中值粒径和含水量的自由流动的布洛芬水合钠盐。 可以通过向非沸腾溶液或布洛芬的浆液中加入NaOH水溶液来制备,所述有机溶剂可以在50至120℃的温度范围内与水一起蒸馏。加入NaOH的速率为 在添加完成之前不会使所得反应混合物沸腾的速率。 加完后,用一些有机溶剂通过蒸馏除去水分。 冷却后,从所得浆料中回收布洛芬的水合钠盐。 该方法可以通过在所用NaOH水溶液中选择和使用预定有效浓度的NaOH来控制形成的布洛芬钠盐的中值粒度。