| 混酸对中低品位伴生稀土磷矿酸浸过滤的影响研究 |
| |
| 引用本文： | 李勇,王振杰,刘安荣,彭伟,耿家锐. 混酸对中低品位伴生稀土磷矿酸浸过滤的影响研究[J]. 稀土, 2019, 0(4): 47-52 |
| |
| 作者姓名： | 李勇 王振杰 刘安荣 彭伟 耿家锐 |
| |
| 作者单位： | 贵州省新材料研究开发基地;贵州省冶金化工研究所;贵州工业职业技术学院 |
| |
| 基金项目： | 贵州省科技支撑计划项目(黔科合SY字[2014]3059号);贵州省联合基金项目(黔科合LH字[2016]7066号) |
| |
| 摘 要： | 以含稀土中低品位磷矿为研究对象,采用盐酸和硫酸的混合酸浸出磷矿中的五氧化二磷和稀土,考察了酸矿比、氯化钠加入量、酸浸温度、混合酸中硫酸含量和酸浸时间对酸浸渣过滤强度的影响。结果表明,在酸矿比为2.5、氯化钠加入量为40kg/t矿粉、酸浸温度为60℃、混合酸中硫酸含量为1.7%和酸浸时间为120min的条件下,酸浸渣过滤强度可达34kg·m^-2·h^-1以上,稀土浸出率可达96%以上,五氧化二磷浸出率可达98%以上。
|
| 关 键 词： | 混合酸 浸出 稀土 磷矿 强化过滤 |
Effect of Mixed Acid on Leaching and Filtration of Rare-earth in Middle-low Grade Phosphate Ore |
| |
| LI Yong,WANG Zhen-jie,LIU An-rong,PENG Wei,GENG Jia-rui. Effect of Mixed Acid on Leaching and Filtration of Rare-earth in Middle-low Grade Phosphate Ore[J]. Chinese Rare Earths, 2019, 0(4): 47-52 |
| |
| Authors: | LI Yong WANG Zhen-jie LIU An-rong PENG Wei GENG Jia-rui |
| |
| Affiliation: | (Guizhou Research and Development Base of New Materials,Guiyang 550023,China;Guizhou Institute of Metallurgical and Chemical Engineering,Guiyang 550023,Guizhou;Guizhou Industrial Vacational Technical Institute,Guiyang 550018,China) |
| |
| Abstract: | The effect of acid-ore ratio,sodium chloride dosage,acid leaching temperature,sulfuric acid content in mixed acid and acid leaching time on the filtration strength of acid leaching residue was investigated.The results show that under the conditions of acid-ore ratio 2.5,sodium chloride dosage 40 kg/t ore powder,acid leaching temperature 60℃,sulfuric acid content 1.7%in mixed acid and acid leaching time 120 min,the filtration strength of acid leaching residue can reach more than 34 kg·m^-2·h^-1,rare earth leaching rate can reach more than 96%,and phosphorus pentoxide leaching rate can reach more than 98%. |
| |
| Keywords: | mixed acid leaching rare-earth phosphate ore enhanced filtration |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
