氧化钒

Was established in Hunan in 1978, domestic coal production of vanadium pentoxide vanadium business.

湖南华林矿产品有限公司始建于1978年，是国内石煤提钒生产五氧化二钒的企业。

Vanadium pentoxide and iron quality is better than similar national standards, long-term exports of European countries by users.

五氧化二钒及五零钒铁质量优于国家同类标准，长期出口欧洲各国，深受用户好评。

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。

High concentration of ammonia-nitrogen wastewater was drained off in the production of vanadium sesquioxide (V2O3) in Panzhihua Steel Group Panhong Vanadium Production Ltd.

攀枝花钢铁集团攀宏钒制品有限公司三氧化二钒生产过程中产生浓度较高的氨氮废水，如直接排放将会对金沙江水体造成恶劣影响。

In acidic medium,ammonium vanadate and ammonium molybdate are added,which,with phosphorous acid,form yellow ternary acid of phosphor,vanadium and molybdenum,by which the content of phosphor can be determined.

试样经盐硝混合酸溶解，以过氧化氢将亚磷酸氧化成正磷酸，在酸性介质中，加入钒酸铵和钼酸铵与磷酸形成黄色的磷钒钼三元杂多酸，从而进行磷的测定。

This paper introduces the fundamental theory and technology feasibility of using molybdic oxide instead of molybdenum iron and vanadium slag instead of vanadium iron to smelt ZG20CrMoV steel.

介绍了采用氧化钼代替钼铁、钒渣代替钒铁直接合金化冶炼ZG2 0CrMoV钢的基本理论及工艺技术。

Molybdic oxide ; vanadium slag ; smelting ; ZG20CrMoV steel

氧化钼；钒渣；冶炼；铸造20铬钼钒钢

The present invention provides a preparing method of vanadic oxide by coal mine containing vanadium and fluorite.

含钒石煤矿和萤石联合制取五氧化二钒的方法。

Methods:Vanadium was determined by dual-wavelength catalytic spectrophotometric method which was based on the vanadium catalyzing oxidation of acridine orange and acid chrome blue K by potassium bromate in 0.010 mol/L H2SO4 medium.

在硫酸介质中，利用钒催化溴酸钾氧化吖啶橙和酸性铬蓝K褪色反应，分别在476 nm和556 nm处测量催化体系和非催化体系的吸光度的变化，用双波长催化光度法测定痕量钒。

The vanadium oxide films were characterized by X-ray diffraction and X-ray photoelectron spectra . It is found that the formation of vanadium oxide films was affected by substrate temperature and annealing time, because high substrate temperature and annealing were favorable to further oxidation.

采用X-射线衍射和X-射线光电子能谱对钒氧化物进行了表征，发现钒氧化物薄膜的形成受衬底温度和退火时间的影响，因为衬底温度以及退火有利于进一步氧化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。