钼酸盐

The former is to prepare polymolybdates coordinated' directly by organic ligands using Na2MoO4 and MoO3 precursors; The latter plays emphasis on exploiting a simple and effective routine to synthesize Keggin polytungstates in which the transition metal or Si acts as the heteratom by reaction precursor Na2WO4.We have synthesized a 4,4'-bipyridine bridging dumbbell-like polymolybdates a metatungs...

前者主要是制备有机配体键合的多金属钼酸盐；后者重点是探索出一个简易、有效的合成过渡金属或主族元素硅作杂原子的Keggin多金属钨酸盐的方法，然后通过变换过渡金属或有机配体的种类探讨对产物结构的影响，再对所得化合物的结构和组成通过物理测试手段进行表征，同时研究其在光、电、磁等方面的性质。

Thiourea and methenamine have synergistic effect that the concentration of methenamine can be effectively decreased.

钼酸盐以其低毒、无公害、优异的抗氯离子点蚀能力等特点，倍

Therefore, it is very useful and necessary to further study molybdate.

可以认为，钼酸盐在中性介质中对金属材料的缓蚀有很大的应用潜能。

The results show that the average size of the rare earth-doped molybdate particle is about 1μm.

结果表明：制备的稀土钼酸盐粉体平均颗粒尺寸约1μm，且无需球磨便为分布均匀的类球形颗粒。

Progress of molybdate passivating for zinc coating is stated.

本文综述了国内外镀锌层钼酸盐钝化的研究概况。

When concentration of molybdate is 200mg/L, the inhibitive effect is very efficient.

钼酸盐浓度为200mg/L左右时，与适量的磷酸盐或硅酸盐复配，可以达到有效的缓蚀效果。

In this paper, we study mainly inhibitive mechanism of molybdate, there is much work to do for practical usage. We hope that test results and research method in this paper can be useful for later study.

当然，本文主要侧重于对该缓蚀剂进行机理研究，距离实际应用还有许多工作要做，希望本文的实验数据与相关结论，能对钼酸盐系列缓蚀剂的应用以及中性介质缓蚀剂的研究、开发起到推动作用。

The mechanism of vanadium removal from ammonium molybdate solution by ion-exchange was studied.

摘 要：对钼酸盐溶液离子交换钼钒分离机理进行研究。

A series of unsupported molybdenum phosphide were prepared at different reduction temperatures by temperature-programmed reaction process.

通过程序升温还原磷钼酸盐前体的方法制备了无负载磷化钼催化剂，并采用XRD ，BET ，XPS和高压连续微反技术，考察了催化剂的性质，研究了还原温度对催化剂HDN ，HDS和HYD性能的影响。

The utilization ratio of tungsten or molybdenum is higher than 90% during the syntheses of tungstate or molybdate films by cell route, while the ratio is lower than 70% for constant current method.

在利用原电池方法合成钨—钼酸盐多晶膜的过程中，钨或钼材料的利用率一般在90％以上；而恒电流技术中钨或钼材料的利用率一般在70％以下。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。