ferrotungsten

ferrotungsten

1. Methods for chemical analysis of ferrotungsten--The bis (cyclohexanone) oxalyldihydrazone photometric method for the determination of copper content

GB/T7731.3-1987钨铁化学分析方法双环己酮草酰二腙光度法测定铜量

2. By adapting to the craft, the average arsenic content in ferrotungsten can reach 0.

介绍钨铁合金真空脱硫脱砷的生产工艺以及有关的影响因素。

3. iron-rich ferrotungsten

富铁钨铁

4. The circumstances of making high-grade ferrotungsten by alumino-silico-thermic process are desicribed.

本文介绍了铝硅热法生产高钨铁的工艺研究情况,讨论了一些工艺条件对冶炼的影响。

5. Keywords flame atomic absorption spectrophotometric method;ferrotungsten;copper;

火焰原子吸收法;钨铁;铜;

6. Determination of tungsten content in ferrotungsten, white - tungsten ore and essential - tungsten ore by thiocyanate spectrophotometry

用硫氰酸盐光度法测定钨铁、白钨矿、钨精矿中钨含量

7. Keywords inductively coupled plasma atomic emission spectrometry;lead;tin;bismuth;ferrotungsten;

电感耦合等离子体原子发射光谱法;铅;锡;铋;钨铁;

8. Keywords electrode positioning;automatic regulator;ferrotungsten;electric furnace;

电极升降;自动调节器;钨铁;电炉;

9. Keywords Scheelite;Aluminothermic method;Ferrotungsten;Technology;

白钨矿;铝热法;钨铁;工艺;

10. Keywords catechol voilet surface activating agent absorption photometry ferrotungsten;

邻苯二酚紫;表面活性剂;吸光光度;钨铁;

11. Keywords ferrotungsten;vacuum;desulphurization;dearsenication;

钨铁;真空;脱硫;脱砷;

12. Keywords molybdenum;thiocyanate;citric acid;ferrotungsten;

钼;硫氰酸盐;柠檬酸;钨铁;

13. Keywords high-grade ferrotungsten;metal-thermic;rate of reclaim;

高钨铁;金属热法;回收率;