摘要
介绍了在实验室制备结晶山梨醇的方法,把乙醇加入饱和山梨醇溶液中,通过降低混合溶液的温度,使山梨醇晶体析出,并根据工业生产的实际要求,用70%(质量分数)和95%(质量分数)的乙醇进行结晶实验,结果表明,在38℃时,恒温1h,放料抽滤后,可得到收率为757%的山梨醇晶体。
The preparing method of crystallization of sorbitol in laboratory is introduced.The ethanol is put into the saturated sorbitol solution,and by reducing the temperature of the mixed solution,the crystal body of sobitol is separated out.According to the requirement of the industrial production,the weight fractions 70% and 95% of ethanol are used to the crystal experiments.The experimental result shows,at 38 ℃,constant temperature for one hour,the yield of the sorbitol crystal is up to 75.7%.
出处
《河北工业科技》
CAS
2000年第1期33-35,共3页
Hebei Journal of Industrial Science and Technology
