合成甘油残液回收聚甘油的研究

合成甘油蒸馏釜底残液，经中和，脱水后，用溶液萃取脱盐，脱色剂脱色，硼氢化钠精制，得工业聚甘油，制备了聚甘油二硬脂酸酯，用作农用PE薄膜防雾剂，效果很好．

ExtraCting desaltificatiou with organic solvents such as ethanol,acid or butanol,polyglycerol wasrecovered from distillation residue of synthetic glycerol after furthetment with descolourants and NaBH4. Polyglyceroldistearate,an excellent antifogging agent for PE film,can be preped.