This paper summarizes the process features of purification arsenic removal of copper electrolyte by solvent extraction or continuous electrowinning and makes analysis and comparison.
总结了萃取法和连续电积法两种铜电解液净化脱砷新工艺的特点，并进行了分析比较。
Using paraffin amine as dissolvent and kerosene as diluent for the purification and defluorination of wet process phosphoric acid by solvent extraction was studied.
为对湿法磷酸进行净化脱氟 ，用胺类溶剂作萃取剂 ，煤油作稀释剂 ，对湿法磷酸进行了溶剂萃取脱氟的工艺研究。
Although the fucoxanthin yield extracted by SFE-CO2 was lower, the SFE-CO2 was more conducive to fucoxanthin selectively extraction, separation and purification compared to organic solvent extraction.
与有机溶剂法相比，超临界CO2萃取岩藻黄素效率略低，而更利于岩藻黄素的选择性萃取及分离提纯；
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