Preparation of biodiesel by esterification of oleic acid catalyzed by long-chain B-acid ionic liquid
HE Leqin,QIN Shenjun,CHANG Tao,GAO Xiaorui,MENG Xiaocai
Journal of Hebei University (Natural Science Edition) . 2013, (1): 42 -47 .  DOI: 10.3969/j.issn.1000-1565.2013.01.009