一、前言 随着天然金红石的短缺和价格上涨,供应稳定和价格低廉的钛铁矿正在成为钛的一种重要的生产原料。钛铁精矿含TiO_240～65％。处理钛铁矿的方法大致分成火法和湿法两大类。本文根据近年来公布的专利文献,论述一些已经获得或有可能获得工业应用的方法。 I. INTRODUCTION With the shortage of natural rutile and the rising price, ilmenite with stable supply and low price is becoming an important raw material for titanium production. Titanium concentrate with TiO_2 40 ~ 65%. Ilmenite treatment methods are roughly divided into fire and wet two categories. Based on the patent literature published in recent years, this article discusses some of the ways in which industrial applications have been or are likely to be obtained.