陕西五洲矿业石煤提钒降耗减排工艺研究

金属矿山 ›› 2014, Vol. 43 ›› Issue (08): 69-73.

陕西五洲矿业石煤提钒降耗减排工艺研究

危青¹，李桂英¹，戴子林¹，孔振兴¹，汪虎²

1.广州有色金属研究院，广东广州 510651；2.陕西五洲矿业股份有限公司，陕西商洛 711400

出版日期:2014-08-15 发布日期:2015-03-31

Vanadium Extraction & Consumption and Emission Reduction Process of Stone Coal in Shaanxi Wuzhou Mining Co.，Ltd.

Wei Qing¹，Li Guiying¹，Dai Zilin¹，Kong Zhenxing¹，Wang Hu²

1.Guangzhou Research Institute of Nonferrous Metals，Guangzhou 510651，China；2.Shaanxi Wuzhou Mining Co.，Ltd.，Shangluo 711400，China

Online:2014-08-15 Published:2015-03-31

摘要/Abstract

摘要： 针对陕西五洲矿业股份有限公司在石煤全湿法硫酸提钒生产过程中存在的浸出用硫酸、浸出液中和用石灰、生产用水消耗高，尾渣排放量大等问题，开展了浸出余酸随浸出液返回利用的实验室试验和工业试验。实验室试验考察了余酸返回后V₂O₅在浸出液中的积累情况对浸出效果的影响，并比较了余酸返回和余酸不返回时浸出液中和所消耗的石灰量以及中和后滤渣的产生量。工业试验根据实验室结果，采取浸出液V₂O₅浓度在8~18 g/L时将浸出液补加适量新硫酸返回利用、浸出液V₂O₅浓度超过18 g/L时停止返回而全部使用新硫酸、待浸出液V₂O₅浓度重新降到8 g/L时再开始返回的办法，使得浸出—中和环节硫酸、石灰、生产用水的消耗量及中和后滤渣的产生量分别降低了22.1%、16.3%、71.4%、15.3%，从而显示出余酸回用技术具有显著的降耗减排效果。

关键词: 石煤, 酸浸提钒, 余酸返回, 降耗减排

Abstract: On account of the shortcomings of high consumption of sulfuric acid for leaching, lime for neutralizing leaching solution and water during the process, as well as large emission of tailing, both laboratory and pilot experiment are conducted on returning and reuse of residual acid by adding to solution. Effect of the accumulation of V₂O₅ in leaching solution on leaching efficiency after residue acid returning in laboratory scale is investigated. Lime consumption for neutralization and the output of filter residual before and after neutralization on residual acid returning is compared. Pilot experiment is based on laboratory experiment. Appropriate fresh sulfuric acid and the returning acid are added into solution when V₂O₅ concentration is 8~18 g/L, only fresh acid is used when V₂O₅ concentration is above 18 g/L, and only returning acid when the V₂O₅ concentration is less than 8 g/L. By this method, consumption of sulfuric acid, lime and water during leaching-neutralization process are decreased by 22.1%, 16.3%, 71.4% respectively, also the residual solution output decreased by 15.3%, which indicates that the residual acid returning technology can significantly lower the consumption and emission.

Key words: Stone coal, Vanadium extraction by acidic leaching, Residual acid returning, Consumption and emission reduction

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.

WEI Qing, LI Gui-Ying, DAI Zi-Lin, KONG Zhen-Xing, WANG Hu. Vanadium Extraction & Consumption and Emission Reduction Process of Stone Coal in Shaanxi Wuzhou Mining Co.，Ltd.[J]. Metal Mine, 2014, 43(08): 69-73.

[1]	白哲 , 韩跃新 , 靳建平 , 李艳军 , 孙永升. 敦煌平台山石煤钒矿工艺矿物学研究[J]. 金属矿山, 2021, 50(08): 109-115.
[2]	胡洋, 何东升, 谢志豪, 吴玉元, 李克尧. 石煤型钒矿预富集技术研究现状[J]. 金属矿山, 2018, 47(12): 73-79.
[3]	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.
[4]	王鑫, 林海, 董颖博, 李甘雨. 空白焙烧石煤物相及钒形态变化对细菌浸钒的影响[J]. 金属矿山, 2018, 47(03): 85-89.
[5]	吴强, 彭同江, 孙红娟, 张冬. 基于硫酸铵+硫酸混合助剂的石煤焙烧─酸浸提钒[J]. 金属矿山, 2018, 47(01): 112-115.
[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]	刘鑫, 张一敏, 刘涛, 孙坤, 汪博, 许承宝. 湖北某云母型含钒石煤重—浮联合预抛尾试验[J]. 金属矿山, 2017, 46(05): 93-98.
[8]	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.
[9]	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.
[10]	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.
[11]	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.
[12]	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.
[13]	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.
[14]	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.
[15]	何东升, 李巧双, 张刚, 池汝安, 张丽敏, 张建刚. 臭氧助浸提高石煤中钒浸出率[J]. 金属矿山, 2014, 43(05): 100-104.

扫码分享