2.Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.
采用无水乙醇、乙醚、水溶,川汉源花椒了精油提取研究。
3.Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.
莰烯在阳离子交换树脂固定床催化下与乙醇反应生成异菠基乙醚。
4.The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.
5.The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.