一、前言随着生产的发展和技术的进步,钛矿资源越来越多地用来生产颜料钛白、海绵钛和电焊条包皮。过去,生产海绵钛和电焊条多采用含二氧化钛90％以上的天然金红石。但天然金红石在世界上的储量少,产地少,不仅供不应求,而且价格昂贵。目前生产颜料 I. INTRODUCTION With the development of production and the advancement of technology, titanium resources are increasingly being used to produce pigments such as titanium dioxide, titanium sponge and welding rod foreskin. In the past, the production of sponge titanium and welding electrodes using more than 90% titanium dioxide natural rutile. But natural rutile reserves in the world less, less origin, not only in short supply, but also expensive. Currently producing pigments