某云母型含钒石煤氧压与常压酸浸提钒比较

金属矿山 ›› 2014, Vol. 43 ›› Issue (09): 64-68.

某云母型含钒石煤氧压与常压酸浸提钒比较

薛楠楠^1,2，张一敏^1,2，刘涛^1,2，黄晶^1,2，黄俊^1,2

1.武汉科技大学资源与环境工程学院，湖北武汉 430081；2.湖北省页岩钒资源高效清洁利用工程技术研究中心，湖北武汉 430081

出版日期:2014-09-15 发布日期:2015-04-15
基金资助:
* “十二五” 国家科技支撑计划项目（编号：2011BAB05B00）。

Comparison of Atmosphere Pressure Acid Leaching and Oxygen Pressure Acid Leaching for Vanadium Extracting from Mica-type Stone Coal

Xue Nannan^1,2，Zhang Yimin^1,2，Liu Tao^1,2，Huang Jing^1,2，Huang Jun^1,2

1.School of Resource and Environmental Engineering，Wuhan University of Science and Technology，Wuhan 430081，China；2.Hubei Province Engineering Technology Research Center of High efficient Cleaning Utilization for Shale Vanadium Resource，Wuhan 430081，China

Online:2014-09-15 Published:2015-04-15

摘要/Abstract

摘要： 湖北某地云母型含钒石煤中85%以上的钒赋存于云母类矿物中，V³⁺、V⁴+分别占总钒的70.83%、29.17%，V³⁺以类质同象取代云母晶格中的Al³⁺离子，常压酸浸极难释放出晶格中的钒。为了确定该矿石的高效、低耗、环保浸钒工艺及参数，以常压酸浸效果为参照，对氧压酸浸工艺条件进行了研究。结果表明，浸出温度、硫酸浓度以及氧分压的升高可显著提高钒浸出率，压力场的引入可大幅度提高钒浸出率、缩短反应时间、降低酸耗；在硫酸体积浓度为20%、浸出时间为5 h、反应温度为160 ℃、氧分压为0.5 MPa情况下的氧压酸浸，钒浸出率可达75.98%，较硫酸体积浓度为20%、浸出时间为5 h、反应温度为98 ℃情况下的常压酸浸钒浸出率高45.12个百分点。

关键词: 云母型含钒石煤, 提钒, 常压酸浸, 氧压酸浸, 钒浸出率

Abstract: Among a vanadium-bearing stone coal from Hubei province，more than 85% vanadium exists in mica minerals.V3+ and V4+ account for 70.83% and 29.17% of total vanadium respectively，in which V3+ replaces Al3+ as isomorphism in mica lattice which make vanadium hard to be released by direct acid leaching at atmosphere pressure.In order to find a high efficiency，low consumption，environmental friendly vanadium extracting process and parameters，by compared with atmosphere pressure acid leaching results，the oxygen pressure acid leaching process conditions were examined.The research results indicate that increasing leaching temperature，sulfuric volume concentration and oxygen partial pressure can significantly improve vanadium leaching efficiency，and introduction of pressure field can substantially raise vanadium leaching efficiency，shorten leaching time and reduce acid consumption.Vanadium leaching efficiency by oxygen pressure acid leaching reach 75.98% with sulfuric volume concentration of 20%，leaching for 5 h，leaching temperature at 160 ℃，oxygen partial pressure of 0.5 MPa，which is 45.12% higher than that of atmosphere pressure leaching at sulfuric volume concentration of 20%，leaching for 5 h and leaching temperature at 98 ℃.

Key words: Mica-type vanadium bearing stone coal, Vanadium extracting, Atmosphere pressure acid leaching, Oxygen-pressure acid leaching, Vanadium leaching efficiency

薛楠楠, 张一敏, 刘涛, 黄晶, 黄俊. 某云母型含钒石煤氧压与常压酸浸提钒比较[J]. 金属矿山, 2014, 43(09): 64-68.

XUE Nan-Nan, ZHANG Yi-Min, LIU Tao, HUANG Jing, HUANG Jun. Comparison of Atmosphere Pressure Acid Leaching and Oxygen Pressure Acid Leaching for Vanadium Extracting from Mica-type Stone Coal[J]. Metal Mine, 2014, 43(09): 64-68.

[1]	杨奇霖　卿海天　张　杰　张志远　居殿春　张　俊　堵伟桐. 含钒四氯化钛精制尾渣锰化焙烧制备V2O5工艺研究[J]. 金属矿山, 2024, 53(01): 304-309.
[2]	邹凯, 肖军辉, 钟楠岚, 高德强. 低品位钒矿硫酸化焙烧—浸出提钒工艺试验研究[J]. 金属矿山, 2022, 51(09): 121-125.
[3]	金永朋, 李艳军, 袁帅, 刘杰. 新疆某难处理含钒石煤焙烧—酸浸提钒试验研究[J]. 金属矿山, 2021, 50(09): 96-101.
[4]	张成强, 孙传尧, 印万忠, 景高贵. 某伊利石型含钒石煤矿石复合添加剂焙烧—联合浸出提钒工艺研究[J]. 金属矿山, 2018, 47(10): 92-97.
[5]	王露瑶, 张一敏, 黄晶, 刘涛, 薛楠楠. 钒页岩氧压酸浸过程中V与Fe的分离工艺研究[J]. 金属矿山, 2018, 47(01): 107-111.
[6]	冯杨, 陈铁军, 张一敏, 韩军, 万军营. PVC废塑料与石煤混合焙烧—酸浸提钒试验[J]. 金属矿山, 2017, 46(07): 110-114.
[7]	闫平科, 张旭, 赵永帅. 陕西某风化石煤提钒试验[J]. 金属矿山, 2016, 45(03): 95-97.
[8]	黄俊1, 张一敏, 黄晶, 刘涛, 薛楠楠. 石煤焙烧—加压酸浸提钒研究[J]. 金属矿山, 2015, 44(10): 85-89.
[9]	黄献宝, 陈铁军, 张一敏, 马浩, 苏涛, 刘娟. 焙烧方式对石煤提钒效果的影响[J]. 金属矿山, 2015, 44(05): 101-104.
[10]	李美荣, 梁冬云, 何晓娟. 湖北某石煤型钒矿石工艺矿物学研究[J]. 金属矿山, 2015, 44(02): 87-91.
[11]	危青, 李桂英, 戴子林, 孔振兴, 汪虎. 陕西五洲矿业石煤提钒降耗减排工艺研究[J]. 金属矿山, 2014, 43(08): 69-73.
[12]	杨德芹, 梁晓峰, 郭学, 李海建, 王翠玲, 杨世源. 含钒石煤硫酸化焙烧—超声浸出试验[J]. 金属矿山, 2014, 43(07): 101-105.
[13]	郝文彬, 戴子林, 郭秋松, 危青, 李云霄. 石煤直接酸浸提钒富液铵盐沉钒工艺研究[J]. 金属矿山, 2014, 43(06): 75-78.
[14]	危青, 戴子林, 吴海鹰, 李桂英. 石煤提钒富液直接制备高纯V₂O₅[J]. 金属矿山, 2013, 42(12): 66-69.
[15]	李秀敏, 张一敏, 黄晶, 刘涛, 包申旭. 含钒中间渣返回钒渣钠化焙烧提钒研究[J]. 金属矿山, 2013, 42(11): 158-160+163.

扫码分享