Method for determining content of silicon in ferrotitanium

The invention relates to a method for determining a content of silicon in ferrotitanium. The method comprises the following steps of preparing a mother liquor, adding an ammonium molybdate solution into the mother liquor, adding a complexing agent and a reducing agent, measuring absorbance by using a spectrophotometer, and finding out a mass fraction of silicon on a working regression curve. The whole operation process takes about 4-5 hours so that the time is saved, fewer chemicals are used, a sulfuric acid smoke emitting process is not needed, the chemical consumption is reduced, and the environmental pollution and the danger to operators are decreased. 本发明涉及一种钛铁中硅含量的测定方法，包括以下步骤：母液的制备：取上述母液，加入钼酸铵溶液，再加入络合剂和还原剂，用分光光度计测量吸光度，在工作回归曲线上查出硅的质量分数。本发明整个操作过程耗时大约4-5个小时，节约了时间，使用化学药品较少，不需要冒硫酸烟过程，降低了药品消耗，减少了环境污染和对操作人员的危险性。