文献类型：专利

英文题名：Method for removing alkali-nitrogen compound from poor wax oil by complex extraction

作者：SEN B;LING H;CHEN J

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN1470606-A

申请日：2003-06-23

公开日：2004-01-28

语种：英文

收录：DERWENT

摘要：NOVELTY - The present invention discloses a solvent method for upgrading low-grade wax oil, which uses organic acid, water soluble high molecular or/and water as extraction agent, in the range of that the ratio of solvent and oil is 5:0.01-1 and the temp. is 30-110 deg.C the low-grade wax oil can be extracted, the raffinate oil yield can be up to above 95%, the alkali nitrogen removed rate can be up to above 95% and the solvent recovery rate is up to above 99%, and the cover wax oil obtained by said invented process has low alkali nitrogen content, and is suitable for catalytic cracking raw material.