查询词典 vanadium

We adopted a comparatively perfect technics, such as calcineing ore with Calcium, soaking through NH_4HCO_3, enriching the vanadium with 717 anion exchange resin and depositing vanadium with NH_4C1, to recover the vanadium from argillaceous vanadium ore. At this rate, those problems that high content of SiO_2 in the ore, agglomeration in calcination, low transformation rate of dissoluble vanadium and unavailable enrichment of mill run, can be raveled out.

针对粘土钒矿中SiO_2含量太高，焙烧时易结块，可溶性钒转化率低以及不能选矿富集等问题，本课题采用钙化焙烧法焙烧，碳酸氢铵浸出，717~#强碱性阴离子交换树脂富集，以及氯化铵沉钒等方法，提钒效果较为理想。

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。

One is low valence vanadium oxide thin films were deposited by direct current facing target magnetron sputtering firstly, and then thermal oxidated; the other is high valence vanadium oxide thin films were deposited by ion beam sputtering, then thermal deoxidated. Vanadium oxide thin films with phase transition were obtained at the lower thermal process temperature 300℃, which is compatible with MEMS technologys. The composition of VO_x thin film fabricated by first method includes mainly VO_2, V2O3 and VO_, the TCR is -2.25%/K, the TCR gradually increases with phase transition temperature decreases. The composition of VO_x thin film fabricated by the second method includes mainly VO_2, V2O5 and V2O3 , and the resulting VO_x thin filmTCR is -3.0%/K. The TCR of phase transition vanadium oxide thin films made by second method is higher than that made by first method for the existance of V2O5 in thin films.

分别采用直流对靶磁控溅射制备低价态氧化钒薄膜再附加热氧化处理的方式，和射频离子束溅射制备高价氧化钒薄膜附加热还原处理的方式获得了具有相变特性的氧化钒薄膜，第一种方式获得相变特性氧化钒薄膜的热处理温度最低为300℃，克服了以往高温条件下热处理不能与MEMS工艺兼容的缺点；相变特性氧化钒薄膜的组分以VO_2为主，含有V2O3和VO_，室温TCR为-2.25%/K；室温电阻温度系数随相变温度的降低逐渐升高；采用第二种方式获得的相变氧化钒薄膜的组分以VO_2为主，含有V2O5和V2O3，室温TCR可达-3.0%/K；分析发现，具有相变特性的氧化钒薄膜中含有V2O5时，室温电阻温度系数明显增大。

In this papers, the recovery of vanadium from the argillaceous vanadium ore was studied detailedly in Xichuan of Henan province, where the content of vanadium is about 2.05%.

本文对河南淅川的粘土钒矿的提钒工艺进行了详细研究，实验所用钒矿V_2O_5的含量为2.05％。

The gaseous impurities in the alloys were well controlled with the sum of C, N and O less than 500wppm. For the first time it was found the strong interaction between Cr-Ti-CON, which reduces the mobility of Ti and CON, enhancing high-temperature strength and the aging-hardening property, and keeping the cold-work induced hardening at higher temperature. Aging-hardening could increase the tensile strength of V-4Cr-4Ti by 30% and could be utilized at 00 C for better economical performane of a vanadium structure. Hydrogen release will occur for the alloys tensile loaded at room temperature, which will affect the safety of a vanadium structure due to the resulting dimensional instability. For hydrogen embrittlement, impact toughness and fracture toughness of the alloy showed higher sensitivity than the tensile test elongation,so the toughness should be used as a new standard for the assessment of the embrittlement. Vanadium alloys were easily oxidized in air.

合金的气体杂质含量得到有效控制，C、N、O总量低于500wppm；首次发现Cr-Ti-CON之间的强相互作用，它使Ti、CON的高温可移动性降低，提高合金的高温强度、增强时效强化特性、使冷加工强化保持到更高温度；时效强化可使V-4Cr-4Ti的强度提高30%，可在低温（00C）下应用，提高构件的经济性；室温下，钒合金在拉应力的作用下，存在着氢释放，带来部件使用中的尺寸不稳定性，影响构件安全；氢脆是钒合金聚变应用的一个关键问题，合金的冲击韧性和断裂韧性表现出比拉伸延伸率更强的氢脆敏感性，应作为评价合金氢脆行为的新标准。

Steel Vanadium GFC1 today is the right to terminate the line, this also means that from tomorrow, will be officially GFC1 vanadium steel curtain call, the line will not have the right to all the warrants will be canceled, and the right line Investors will Panzhihua Steel Vanadium and before investors, to participate in the ownership of its major asset reorganization and access to the cash option eligibility.

钢钒GFC1今天是有权终止线，这也意味着，从明天开始，将正式钢钒GFC1谢幕，该行不会有所有权证的权利将被取消，并正确的路线，投资者将攀钢钢钒投资者之前，参与其重大资产重组和获得资格的现金选择权。

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。

To realize our goal, two kinds of vanadium source, including amorphous vanadium pentoxide, and the intermediate in the process of forming vanadium pentoxide gels, were used as precursors in this study.

于是，我们在研究中使用了两种钒源用作反应前驱体（一种是无定形的V2O5粉末，另一种是H2O2处理V2O5形成溶胶过程的中间体），选取了多碳醇与烷基链相同的单胺两种结构导向剂。

The results show that the optimal parameters of this technique are as time of 3 h, temperature of 150 ℃, ratio of liquor to solid of 1.21, H2SO4 additions of 25%, 85% material granularity of 0.095 mm. The one-step leaching percent of vanadium can reach 77%, the leaching percent obtain 90% after two-step countercurrent leaching. The vanadium leaching percent have growth and decline relation to occupation ratio of vanadium in in-soluble silicoaluminate mineral.

结果表明：该工艺的最佳工艺参数如下，即时间3 h、温度150 ℃、液固比1.21、硫酸用量25%、85%矿石粒度粒经小于0.095 mm；在此条件下，钒的一段浸出率为77%左右，而矿石经过两段逆流浸出后，钒浸出率可达90%；钒浸出率与矿石中难溶硅铝酸盐相中的钒占有率呈现消长关系。

This paper introduced the market development trend of vanadium products(include ferro-vanadium and vanadium oxide).

介绍了钒产品的市场发展趋势，重点从2005年的45万元/t的钒铁历史高价开始分析，到近两年的市场平淡、平稳的原因，并且对从中反射出来的规律进行了总结。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样