【摘要】 采用萃取法对糠醛废水中含有的醋酸进行回收 ,萃取剂用有机胺、调节剂和稀释剂混配而成 ,质量分数分别为 4 5% ,2 5% ,3 0 % .用蒸馏的方法将萃取相的醋酸蒸出 ,糠醛废水经萃取处理后 ,达到国家三级排放标准 .更多还原

【Abstract】 Low concentration of acetic acid(1.3% average)is extracted by three components solvents which contains tertiary amines.A mixture of tertiary amine regulator thinner in a ratio of 45%∶25%∶30%.The heat stabilization of solvent is nice and can be used repeatedly.After acetic acid was extracted,waste water of furfural meets the national standard.更多还原