1) low-vanadium
低钒
1.
It discusses the influences of temperature,the types of sodium salt,and the adding amounts of sodium salt to extracting vanadium pentoxide from high-silicon low-vanadium vanadium slag.
讨论了温度、钠盐种类及钠盐加量对高硅低钒钒渣提取五氧化二钒的影响。
2) Low V Steel
低钒钢
3) low vanadium bearing hot metal
低钒铁水
1.
Using the both converters link method which a converter is used to vanadium-recovering and another converter steelmaking,industry tests of low vanadium bearing hot metal are made,and end vanadium slag is produced by 143.
根据攀成钢含钒铁水的特点和设备、工艺实际情况,采用转炉双联提钒法,开展了低钒铁水提钒工业试验,生产出成品试验钒渣143。
4) low valent vanadium reagents
低价钒试剂
1.
Some organic reactions mediated by low valent vanadium reagents and their applications in organic synthesis are reviewed with an emphasis on the carbon-carbon bond formation reactions such as reductive coupling of alkyl halides, reductive coupling of aldehydes and ketones, deoxygenative alkylation and deoxygenative coupling of carbonyl compounds.
综述了近年来低价钒试剂促进的有机反应及其在有机合成中的应用 。
5) vanadium micro-alloyed low-carbon steel
含钒低碳钢
1.
The influence of controlled rolling process on the microstructure and properties of vanadium micro-alloyed low-carbon steel plate;
控制轧制对含钒低碳钢板组织与性能的影响
6) low chromium vanadium titanium cast iron
低铬钒钛铸铁
1.
Using the unique vanadium titanium resources superiority develops the low chromium vanadium titanium cast iron by iron mold.
利用承德钢铁集团公司特有的钒钛资源优势,开发了低铬钒钛铸铁铁型,其高温下的力学性能大为增强,抗熔蚀、抗激冷激热、抗氧化生长性能显著提高,使用寿命远优于同行业同类产品。
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%
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条