有色金属科学与工程Issue(5)：91-96,6.
废钨渣中钽、铌、钨高效共提新工艺研究
New process of high efficient co-extraction of tantalum, niobium and tungsten from tungsten residue
摘要
Abstract
This paper describes a new technology for co-extracting tantalum, niobium and tungsten from tungsten residue using fluoride salt transformation-HF-H 2SO4 leaching-fluoride salt recycling through ammonia conversion.The optimal technical conditions are ensured by experiments. Under the optimal condition, an enriched material with the contents of Ta2O5 and Nb2O5 are 6.08 % and 27.29 % respectively and an enriched material with the content of WO3 is 26.71 % are gained. The single pass recovery rates of tantalum, niobium and tungsten are 83.18 %, 88.33 % and 77.91 %, respectively. This technology process is simple with mild operation conditions. This new process offers a favorable technical economic value due to the recycling use of the fluoride salt and low cost materials consumption.关键词
钨渣/钽/铌/氟盐/富集Key words
tungsten residue/tantalum/niobium/fluoride salt/enrichment分类
矿业与冶金引用本文复制引用
汪加军,王晓辉,黄波,郑诗礼..废钨渣中钽、铌、钨高效共提新工艺研究[J].有色金属科学与工程,2013,(5):91-96,6.基金项目
国家自然科学基金资助项目 （）
