1) vanadium ore
钒矿石
1.
The recovering of V_2O_5 by roasting in air—sulfuric acid leaching—P204 extracting—precipitate separation V_2O_5 with ammonium salt from the vanadium ore was tested.
对钒矿石进行了无盐焙烧—硫酸浸出—P204有机萃取—铵盐沉钒提取五氧化二钒的工艺研究。
2.
Leaching of Vanadium from silicate-type vanadium ore has been research by roasting and leaching using acid.
研究了采用焙烧-浸出工艺从某硅酸盐型钒矿石中浸出钒,确定了最佳工艺条件。
2) Stone coal vanadium ore
石煤钒矿
3) bone coal vanadium ore
石煤钒矿石
1.
Several kinds of technical processes and them application status for extracting vanadium pentoxide from bone coal vanadium ore are introduced.
介绍了几种从石煤钒矿石中提取五氧化二钒的工艺流程及应用状况,提出了应针对石煤钒矿资源的性质选择相应的工艺流程以获得更好的经济效益和社会效益。
4) Vanadous stone coal ore
含钒石煤矿
5) Vanadium-containing graphite tailing
含钒石墨尾矿
6) vanadium
[英][və'neɪdiəm] [美][və'nedɪəm]
钒矿
1.
Experimental study on immersion ratio of green-ball granularity of vanadium in HUNAN based on orthogonal test
基于正交试验的钒矿生球粒度对转浸率影响
2.
There distributed widely the Lower Cambrian black sequence in Xiuwu region in which exist rich vanadium,molybdenum,and uranium deposits,among which vanadium deposit is the richest one.
修武地区下寒武统黑色岩系分布广泛,蕴含着丰富的钒、钼、铀等矿产资源,其中钒矿资源尤为丰富,钒矿体赋存在下寒武统王音铺组底部,具有矿床(点)数量多、分布广、储量大、易勘查开发等特点。
补充资料:钒磷铁矿提钒
钒磷铁矿提钒
extraction of vanadium from the bear vanadium phosphosiderite
和94%。fantintiekuang tifan钒磷铁矿提钒(extraetion of vanadium frombear vanadium phosphosiderite)以含钒磷铁矿为原料制取五氧化二钒的帆提取方法。主要包括钠化焙烧和湿法漫出两道作业。直接用作提饥原料的是含饥磷铁。 含钒磷铁是饥磷铁矿电炉生产单质磷和磷肥的副产品。钒磷铁矿分布在美国爱达荷、蒙大拿、怀俄明、犹他等州,含Pz05 24%~32%、V:O。0.267%~0.625%和少量的铬、镍和钥等。美国克尔麦吉(Kerr-MeGee)化学公司所用的含钒磷铁含饥3.26%~5 .2%、磷24.7%~26.6%、铁59.9%一68.5%、铬3.4%一5.7%、镍。.84%~1%。先将含钒磷铁磨至粒度小于。.42mm,配入1.4倍纯碱和。.1倍的食盐在回转窑中于1043~lo63K温度下焙烧,钒便转变成水溶性的钠盐。熔烧块在加热到沸腾的水中浸出,钒、铬、磷均溶入浸出液。浸出浆液经过滤处理。滤液冷却结晶析出磷酸钠晶体,用离心机分离。晶体中如仍含有钒和铬,可用水重溶后再结晶分离,直到获得合格的磷酸钠(NaaPO;)晶体产品。若Na3PO‘结晶母液含磷高于0. 989/L时则要加入CaclZ,使其生成磷酸钙沉淀,然后水解回收钒。随后往母液中加入硝酸铅,沉淀出铬酸铅。此工艺的钒、铬和磷的回收率分别为85%、65%
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