杂质

Addition, The application of our products in the processing of core-wrapped alloy wire, deoxidizer for steel-making, Calcium, Chromium, Strontium, Ferroniobium, Ferromolybdenum, Ferrotitanium and Ferrovanadium will significantly improve the recovery rate, reduce the impurity of the products and enhance the product quality, which sequentially brings more economic benefit to your company.

在生产合金包芯线、炼钢脱氧剂、金属钙、金属铬、金属锶、铌铁、钼铁、钛铁、钒铁、钒铝合金和异丙醇铝等产品时，使用我公司生产的产品，可以提升回收率，降低产品杂质，提高产品品位，从而获得更好的经济效益。

After the ferromolybdenum was dissolved completely in nitric acid at low temperature,adding internal standard elements of ~(45)Sc,by use of internal elements calibrated method,the content of Sb,Cu,Sn,Si and P in ferromolybdenum is determined directly by ICP-MS.

将钼铁样品用HNO3低温溶解完全后，加入内标元素45Sc，采用内标法，用ICP-MS仪进行测定。文中讨论了基体钼对测定的影响。本方法的加标回收率为98.0%~102.5%，相对标准偏差RSD为1.6%~3.5%。本方法具有简便、快速、准确等特点，可用于钼铁样品中微量杂质元素的分析

Experimental data on production of extra-pure ferronickel and various ferronickel-based alloys are presented.

内容涉及杂质的理论性质以及镍铁精炼的现代工业方法和正在开发的方法。

This paper discusses the source of major inclusions and existence in 75% ferrosilicon, analyzes and researches the refining methods of 75% ferrosilicon.

讨论了75％硅铁中主要杂质来源及存在状态，并对精炼措施做了研究分析。

Input of hose is with filter to avoid dust into pump to make damages possibly

然后按水源的情况将另一端套在自来水龙头上或放入供水池中（进水口必须完全侵入水中），进水口装有过滤器，以免吸入的杂质损坏高压水泵。

Differences of wettability and floatability between diaspore and aluminium silicate minerals are due to the differences of crystal structure between diaspore and aluminium silicate minerals, and of the part Al-O, Si-O bonds, and the metal ions on the surface of the minerals.

一水硬铝石与铝硅酸盐脉石矿物晶体结构的差异、表面断裂的Al-O和Si-O键及表面离子活性区的差别，可影响矿物表面的润湿性与可浮性，类质同象及各种晶格杂质离子也将影响浮选剂与矿物表面的相互作用和矿物可磨性。

Ta,Mo,W,Ti,Nb,the refractory impurity elements,in RE metals are dissolved thoroughly with the addition of fluoric acid,and then determined by ICP-MS.

在稀土金属的冶炼过程中，常用到一些由难熔金属制成的冶炼容器，这样极易引入相应的难熔金属杂质，如Ta、Mo、W、Ti、Nb等。

Meanwhile the effects of calcium and fluorine are also studied.

同时对钙、氟等杂质的影响作了简略研究。

Polymer silicic acid colloid can be used to completely replace the expensive and poisonous fluor containing depressors such as fluosilicate and has a remarkable eff...

聚合硅酸胶体完全可以替代有毒且价格较贵的氟硅酸盐等含氟抑制剂，降低铁精矿中K2 O、Na2 O等有害杂质含量，效果十分明显。

Fluosilicic acid,which is the byproduct from phosphate fertilizer factory,reacts with ammonium hydrocarbonate to obtain ammonium fluosilicate,then reacts with ammonium carbonate to form settled SiO 2,after filtration,water washing,drying and calcining,high purity SiO 2 with less than 10×10 -6 metal impurity and less than 10×10 -9 uranium and thorium respectively is made.

由磷肥厂副产氟硅酸同碳铵反应得氟硅酸铵，再和碳铵反应生成SiO2 沉淀，经过滤、水洗、干燥、煅烧得高纯SiO2 ，其金属杂质总含量小于 10× 10 -6，含放射性元素铀和钍各小于 10× 10 -9，通过实验获得了适宜的工艺条件，反应温度 70℃～ 80℃，反应时间 1 5h～ 2 0h ，配料比n(NH4HCO3 )∶n(NH4 2 SiF6 =4 4。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。