摘要
阐述了以环烷酸—异辛醇—煤油和环烷酸—石油亚砜—煤油两种组分不同的有机溶剂为萃取剂,在REC l3-HC l-HNO3体系中制取纯度≥99.999%高纯氧化钇清洁化工艺流程及特点。研究解决了工艺过程中各种化工辅料的循环使用和综合利用问题,以较低的运行成本实现了工艺过程中的废物资源化及产品化,同时提高了水的利用率,使提钇萃取分离工艺与环境治理有机结合,降低了工艺生产成本和环境治理成本,实现了清洁化生产。
The clean technological route and its feature for producing high purity（≥99.999%） yttrium oxide using two organic solvents with compositions of naphthenic acid-2-ethylhexylalcohol-kerosene and naphthenic acid-petroleum sulfoxide-kerosene as extractant in RECl3-HCl-HNO3 system has been described in the present paper.The cycling and comprehensive utilization of the chemical materials used in the production process have been studied.The experimental results show that the wastes generated in production can become usable products,the utilization rate of water increases,the cost of production and environmental remediation decreases,and clean production can be realized.
出处
《稀土》
EI
CAS
CSCD
北大核心
2010年第5期43-47,共5页
Chinese Rare Earths
基金
国家自然科学基金资助项目(20407003)
北京科技大学科研基金资助项目(2006-2007)
关键词
萃取
环烷酸
异辛醇
石油亚砜
钇
清洁生产
extraction
yttrium oxide
naphthenic acid
2-ethylhexylalcohol
petroleum sulfoxide
clean production
