| 从高杂钨细泥制取高纯仲钨酸铵的新工艺(英文) |
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| 引用本文： | 张启修,龚柏凡,黄蔚庄,黄芍英. 从高杂钨细泥制取高纯仲钨酸铵的新工艺(英文)[J]. 中南大学学报(自然科学版), 1990, 0(4) |
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| 作者姓名： | 张启修 龚柏凡 黄蔚庄 黄芍英 |
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| 作者单位： | 中南礦治学院有色冶金研究所，中南礦治学院有色冶金研究所，中南礦治学院有色冶金研究所，中南礦治学院有色冶金研究所 |
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| 摘 要： | 研究了一个从低品位钨原料生产高纯仲钨酸铵(APT)的新的湿法冶金过程。流程包括两段逆流浸出;净化除Sn,Si,As,P;溶剂萃取及吸附法分离钨与钼;钨的溶剂萃取;湿法多段脱浮等工序。这一新工艺适于处理Si,As,P,Mo,Sn,Mn,Ca等含量变化很大的原料。当结晶率大于90%时,APT中的杂质总量小约110ppm,三氧化钨的工艺总收率大于90%。
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| 关 键 词： | 钨 低品位矿 对流浸出 吸附分离 液液萃取 |
NEW PROCESS FOR PRODUCTION OF HIGHPURITY AMMONIUM PARATUNGSTATE FROM TUNGSTEN SLIMES WITH HIGH CONTENT OF IMPURITIES |
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| Zhang Qixiu,Gong Bofan,Huang Weizhuang,Huang Shaoying. NEW PROCESS FOR PRODUCTION OF HIGHPURITY AMMONIUM PARATUNGSTATE FROM TUNGSTEN SLIMES WITH HIGH CONTENT OF IMPURITIES[J]. Journal of Central South University:Science and Technology, 1990, 0(4) |
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| Authors: | Zhang Qixiu Gong Bofan Huang Weizhuang Huang Shaoying |
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| Affiliation: | Research Institute of Non-ferrous Metallurgy |
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| Abstract: | A new hydrometallurgical process for producing high-purity ammonium paratungstate(APT)from low-grade tungsten material is presented.The flowsheet includes two-stage countercurrentleaching,removal of Sn,Si,As and P,separation of molybdenum from tungsten by solventextraction or adsorption,solvent extraction of tungsten with N235 and a wet-type multi-stepflotation agent removal process.This process is suitable for treating materials whose content ofimpurities(Si,As,P,Mo,Sn,Ca)fluctuates widely.When the crystallization rate is greater than 90% the total amount of the impurity of APT isless than 110ppm.The recovery of WO_3 in the process is more than 90%. |
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| Keywords: | tungsten low-grade ores countercurrent leaching adsorption separaton liquid-liquid extraction |
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