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分子中含有两个氮原子和五个氧原子。One dinitrogen pentoxide molecule contains two nitrogen atoms and five oxygen atoms.

公司主要产品有五氧化二钒、钒铁合金、钒酸盐和涂料四大系列产品。Our main products are in four series of vanadium pentoxide , ferrovanadium , vanadate salts and coatings.

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以乌洛托品、脲为原料，以硝酸五氧化二磷作为硝化剂制备了RDX酮。The RDX ketone is synthesized from urotropine and urea, using nitric acide and phosphorus pentoxide as nitrating agent.

从石煤中提取五氧化二钒时，用苛化泥作焙烧添加剂，以取代氯化钠。Causticizing mud was used as a roasting additive of sodium chloride for extraction of vanadium pentoxide from stone coal.

本方法用于测定磷酸中五氧化二磷的含量，获得满意结果。The method was used to determine the content of di-phosphorus pentoxide in phosphoric acid and the result was satisfactory.

本文分析了钒渣主品位及其杂质含量对五氧化二钒生产的产量、钒回收率的影响。The effect of grade and impurities in vanadiferrous slag on yield and recovery of vanadium pentoxide are analysized in this paper.

研究了水合五氧化二锑磷钼酸铵复合无机离子交换剂的制备和交换性能。A new complex ion exchanger, hydrated antimony pentoxide ammonium molybdophosphate, is prepared and its exchanging capacity is studied.

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介绍用含钒石煤生产五氧化二钒的原理和低污染生产工艺。The principles and low pollution process in production of vanadium pentoxide with stone coal containing vanadium are introduced in detail.

系统地研究了石煤无盐焙烧酸浸生产五氧化二钒的工艺技术，提出了各工序的工艺条件。The process of producing vanadium pentoxide from bone coal vanadium mine without salt roasting and acid leaching, was systematically studied.

针对目前存在的问题，对胶体五氧化二锑的研究方向及研究重点提出了几点建议。After an analysis of existing problems, some suggestions are made for future directions and priorities of colloidal antimony pentoxide research.

最初，科学家们是根据近20年来已知的固定程序，用水溶性钒盐来合成五氧化二钒纳米纤维。First, the scientists synthesised nanofibres of vanadium pentoxide using water-soluble vanadium salt according to the procedure known for over 20 years.

研究了一种五氧化二氮为硝化剂，选择性硝化缩水甘油合成缩水甘油硝酸酯的温和、高效方法。A mild and high efficient method to prepare glycidyl nitrate by selective nitration of glycidol with dinitrogen pentoxide as the nitrating agent was developed.

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以脂肪醇聚氧乙烯醚为起始原料，五氧化二磷为磷酰化剂，对脂肪醇聚氧乙烯醚磷酸酯合成工艺进行了实验研究。The synthesis of ethoxylated fatty alcohol phosphates prepared by reacting ethoxylated fatty alcohol with phosphorylating agent phosphorus pentoxide was studied.

简要介绍以五氧化二氮为硝化剂制备硝酸酯的“绿色”硝化反应的类型、工艺及特点。The types, technology and characteristics of the "green" nitration for preparing nitric esters using dinitrogen pentoxide as the nitrating agent were introduced.

例如，五氧化二钒纤维和片层中的离子可以结合在一起，这使陶瓷纸很适合用于电池中的电极材料中。For instance, ions could be incorporated between the vanadium pentoxide fibres and slabs, which would make the paper suitable as electrode material for batteries.

本文提出了基体匹配校准曲线，ICP-AES法直接测定高纯氧化钽中13种杂质元素的分析方法，并考察了光谱干扰以及基体效应的影响，确定了仪器最佳工作条件。A method in which the matrix was matched to calibration curve has been proposed for the direct determination of 13 trace impurities in high-purity tantalum pentoxide by ICP-AES.

本发明公开了一种碳掺杂五氧化二铌纳米结构可见光光催化剂及其非水体系低温制备方法。The invention discloses a carbon doped niobium pentoxide nanometer structure visible light photocatalyst and a method for preparing an anhydrous system thereof at a low temperature.

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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。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.