【摘要】 目的:除去非那西丁生产中生成的盐。方法:利用盐的溶解度,以其饱和溶液做溶剂。结果:减少了环境污染,节约了能源,减少了生产设备,降低了生产成本。结论:改进后的工艺适合工业生产。更多还原

【Abstract】 Purpose:The improvement is made in order to getting rid of sodium chloride in the production of phenacetine.Method:The improvement is used solubility of sodium chloride,used the saturated solution of sodium chloride,used the saturated solution of sodium chloride as sol- vent.Results:The method is reduced environmental pollution and the production devices,saved the energy,reduced the production cost.Conclusion:The new method benefit industry production.更多还原