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流动床造粒法是保持粉末在流动状态下,喷雾含有粘合剂的溶液,使粉末凝集成粒子的方法。Wurster首先应用此法来制造压片用的颗粒。1964年 Scott和 Rankell 在 Wurster 的基础上,经研究改进,此法才开始应用于医药工业。由于流动床造粒法具有许多优点,1970年以来,国外制药工业中已普遍使用,在食品工业、化学工业中也广泛应用。流动床造粒法与国内普遍采用的湿式造粒法相比,省掉了几道工序,如混合、加粘合剂等,革除了许多湿式造粒法中不可缺少的设备,如混合机、造粒机等。
The fluidized bed granulation method is a method of spraying a solution containing a binder while keeping the powder in a flowing state to cause the powder to aggregate into particles. Wurster first used this method to make pellets for tableting. Scott and Rankell in 1964 on the basis of Wurster, after research and improvement, this method began to be used in the pharmaceutical industry. Since fluidized bed granulation has many advantages, since 1970, foreign pharmaceutical industry has been widely used in the food industry, chemical industry is also widely used. Compared with the wet granulation method commonly used in China, the fluidized bed granulation method dispenses with several processes such as mixing and adhesive addition, and eliminates many indispensable equipments in wet granulation such as mixer Granulator and so on.