AMPICILLIN SODIUM RAW POWDER AND PREPARATION METHOD THEREFOR - 佰腾网专利查询 - 全球专利搜索领导品牌

Disclosed in the present invention are ampicillin sodium raw powder and a preparation method therefor. The ampicillin sodium raw powder has uniform particle size and good fluidity, the specific volume of the ampicillin sodium raw powder is 1.8-1.9 cm3/g, and the mean value of the angle of repose is 25-28 degrees. Further disclosed in the present invention is a preparation method for the ampicillin sodium raw powder, comprising six steps: preparation of an ampicillin amine salt solution, preparation of a sodium isocaprylate solution, crystallization, filtration, washing and drying. According to the preparation method, the problems in the prior art are solved, the product quality is greatly improved, additionally, the reaction period is greatly shortened, the operation process is simplified, and the preparation method has important significance for industrial large-scale production of ampicillin sodium. - 佰腾网专利查询 - 全球专利搜索领导品牌