For the high distribution coefficient dyestuffs, they could be recovered from their dilute solutions by solvent extraction, while the loaded solvent could be re generated by electroextraction.
对于油溶性好的染料，则可用萃取进行染料的回收，而用电泳萃取方法进行溶剂再生。
2
There are solvent extraction, ion exchange, vacuum melting, vacuum distillation or sublimation, electro migration and regional melting, etc.
主要有溶剂萃取、离子交换、真空熔融、真空蒸馏或升华、电迁移以及区域熔炼等。
3
The effect of electric field strength and two phase velocity on mass transfer characteristics in the separation process was studied in an electro-extraction equipment.