The major factors of affecting extraction and back-extraction were discussed. The better technological conditions were obtained.
分析了影响萃取及反萃取取的因素，获得了较佳工艺条件。
2
Calcium magnesium acetate (CMA) can be prepared by extraction of acetic acid from dilute acetic acid wastewater using trioctylamine and then by backextraction using dolomite lime.
用三辛胺萃取醋酸废水中的醋酸，加入白云石灰乳反萃，可制得环保型除冰剂醋酸钙镁盐(CMA)。
3
Results show that the mixed solvent can give high distribution extraction rate for acetic acid wastewater. Backextraction rate was 98. 4%.