1) much vanadium content
高钒
1.
Under the conditions of 5%~10% vanadium and 17%~32% carbon content, the morphology and distribution of vanadium carbide in the high speed steel with much vanadium content were studied and named.
在5%~10%V,1 7%~3 2%C的条件下,研究了高钒高速钢中碳化钒的形态与分布,并对碳化钒的形态及分布形式进行了命名。
2) Fe-C alloy with high vanadium content
高钒合金
1.
The excellent wear properties of the Fe-C alloy with high vanadium contents and the important roles of vanadium carbide phases on wear properties are described.
阐述了高钒合金优良的耐磨性能及碳化钒相对于耐磨性的意义,有关碳化钒形态的试验和理论研究。
3) high vanadium ferrovanadium
高钒铁
1.
In order to recovering remained vanadium from high vanadium ferrovanadium bearing high A12O3 with electric -silicothermic process, transforming slag conposition with adjusting material in furnace charge can recover vanadium economically and can produce self-willed ferrovanadium bearing high silicon and low vanadiu
利用电硅热法提取含高Al_2O_3成分的高钒铁炉渣中残钒,在炉料中配入调渣物料改造渣型后,能较经济地提取出钒元素,生产自用高硅低钒铁。
2.
The processes of smelting high vanadium ferrovanadium with vanadium pentoxide and vanadium trioxide are probed into, appropriate parameters are pointed out, and the two processes of smelting high vanadium ferrovanadium are compared.
对使用五氧化二钒和三氧化二钒混合料冶炼高钒铁的工艺进行了探讨,指出了适宜的工艺参数,并对生产高钒铁的两种工艺技术进行了比较。
4) Vanadium rich slag
高钒炉渣
6) steel slag containing high vanadium
高钒钢渣
1.
This paper outlined in detail the domestic and foreign technological development on the metallurgy of vanadium extracting, and elaborated the feasibility and significance of withdrawing the vanadium from the steel slag containing high vanadium which is produced by the molten iron contained the vanadium in Panzhihua Iron & Steel Co.
本论文较详细地概述了国内外钒提取冶金的技术发展现状,阐述了攀钢用含钒铁水炼钢产生的高钒钢渣提取钒的可行性及重要意义,并对高钒钢渣熔融还原开展的一系列研究工作进行了全面的总结。
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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参考词条