摘要
采用光学显微镜、图象分析和扫描电镜等多种手段，研究了攀钢含钛高炉渣经选择性析出处理后的改性渣中钛的赋存状态、矿物组成及结构，计算了钛在各矿物相中的分布，测定了原料中铁矿物的解离度，为钛的综合利用提供了科学依据。研究结果表明，通过改性处理后，炉渣中大部分钛富集于钙钛矿相中，钙钛矿晶体可以选择性析出并长大，进而采用选矿方法将其分离出来，为综合利用创造条件。探讨了采用重选分离和浮选分离的可能性。
In the blast furnace slag, titanium disseminated in various mineral phases. Titanium could be concentrated mainly in perovskite, which could be selectively precipitated and grown by optimizing the operation factors like the slag composition, temperature of heat treatment and additive agents. This study aims at establishing the titanium mineralogy and its distribution in the as-received slag and the treated slag, and the methods of perovskite separation. The chemical composition and mineralogical phases were examined by chemical analysis and polarization microscope. The microstructure and the chemical composition of the main minerals were examined by SEM, JSM-610F.
出处
《有色金属》
CSCD
2000年第2期26-31,共6页
Nonferrous Metals
基金
国家自然科学基金!(59574021)
关键词
含钛高炉渣
钙钛矿
工艺矿物学
选择性分离
blast furnace slag bearing titanium
perovskite
mineralogy
selectively separating
