查询词典 paratungstate

The method of series rate is used to study the linear growth order of ammonium paratungstate crystal.

将结晶成核期后晶体的生长阶段作为线生长速率测定的时间范围，采用"串联速率法"研究了仲钨酸铵的晶体线生长级数。

Now, Anda products mainly include sodium tungstate, ammonium metagungstate, ammonium paratungstate, ammonium dimolybdate, ammonium quartmolybdate, ammonium heptamolybdate, ammonium molybdate, molybdenum, barium molybdate pure molybdenum trioxide, etc. All of these products have the stable market domestically which are also sold to more than ten regions and countries abroad including west countries, Southeast Asia and Japan. Anda also becomes the special factory of molybdenum series products in foreign trade.

目前安达产品主要包括钨酸钠、偏钨酸铵、仲钨酸铵、二钼酸铵、四钼酸铵、七钼酸铵、钼酸钠、钼铁、钼酸钡、高纯三氧化钼等，这些产品除在国内有稳定的市场外，还远销欧美、东南亚以及日本等十多个地区和国家，公司也成为外贸钨钼系列产品的定点厂家。

The method of series rate is used to study the linear growth order of ammonium paratungstate crystal.

将结晶成核期后晶体的生长阶段作为线生长速率测定的时间范围，采用&串联速率法&研究了仲钨酸铵的晶体线生长级数。

In the paper, the linear growth order of ammonium paratungstate crystal is studied by the "method of initial rate".

应用&初始速率法&研究了仲钨酸铵晶体的线生长级数。

On the basis of proving the influence of temperature,concentration of solution and stiring intension to the granularity of ammonium paratungstate,micron-level APT.

在探明温度、溶液浓度，搅拌强度对仲钨酸铵粒度影响的基础上，研究了表面活性剂制备微米级仲钨酸铵的工艺。

Its main products and capacity are: Ammonium Paratungstate annual output 6000 tons; Tungsten Oxide annual output 5000 tons; Tungsten Powder annual output 2000 tons; Tungsten Carbide Powder annual output 2000 tons.

主要产品及能力：仲钨酸铵6000吨/年；氧化钨5000吨/年；金属钨粉2000吨/年；碳化钨粉2000吨/年。

Because ammonium paratungstate is difficult to dissolve in water,the chemical reaction of acid decomposition APT to H2WO4 is solid-liquid reaction and hinder the reaction uniformly and effectively carrying on.

李玲 APT在水中的难溶性使得酸分解APT制取钨酸的化学反应成为固－液反应，从而妨碍了反应均匀有效地进行。

He catalyst precursors,WO3/TiO2-Al2O3,with different WO3 content were prepared at 500 ℃ baking for 5 h after loading ammonium paratungstate.

iO2具有独特的物理化学性能，在材料科学和光催化领域中具有重要的地位，在环境友好化学中含Ti催化剂的研究与开发已引起了人们的广泛重视。

Tungsten trioxide powder has been prepared from ammonium paratungstate v/a hydrothermal method using orthogonal and mono-level design of experiments.

以仲钨酸铵为原料，通过正交设计和单水平实验，采用水热法处理制备了WO3粉体。

The effects of the spray-drying process of the ammonium paratungstate and the carburization temperature on the formation of the precusor and WC powder were investigated.

采用喷雾干燥-固定床法制备碳化钨粉末，研究了喷雾干燥和碳化反应温度对制备偏钨酸铵前驱体以及碳化钨的影响，前驱体粉末呈现均匀的球状形态，平均粒径为10~20μm，喷雾温度对影响粒径大小和分布影响小；400℃的进口温度下进行喷雾干燥，喷雾粉末仍然保持偏钨酸铵原来的基本组成不发生分解。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。