mixed-solvent extraction

Results show that the mixed solvent can give high distribution extraction rate for acetic acid wastewater. Back extraction rate was 98. 4%.

试验结果表明：混合溶剂对废水中的醋酸有较高的萃取率，反萃取效果为98.4%。

Solvent extraction experiment has been done, in which the feedstock of xinjiang vacuum residue was mixed with RFCC slurry by the method of Supercritical Fluid extraction and Fractionation (SFEF).

以新疆减压渣油中掺入不同比例的重油催化裂化油浆为原料，在超临界流体萃取分馏装置上，进行丁烷脱沥青试验。

Extraction processes for water soluble alkaloids from Rauvolfia vomitoria Afzel with various mixed solvent systems were described.

用混合溶剂提取法研究催吐萝芙木水溶性生物碱的浸提工艺。