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CN107399760A 一种微波钠化焙烧高钛渣制备人造金红石的方法 无效 - 撤回

  • 专利标题： 一种微波钠化焙烧高钛渣制备人造金红石的方法
  • 专利标题（英）： Method for preparing artificial rutile by carrying out microwave sodium salt roasting on high-titanium slag
  • 申请号： CN201610338086.8
    申请日： 2016-05-20
  • 公开(公告)号： CN107399760A
    公开(公告)日： 2017-11-28
  • 发明人: 陈菓 , 刘钱钱 , 李毅恒 , 陈晋 , 廖雪峰 , 彭金辉 , 冯康露 , 何奥希
  • 申请人： 云南民族大学
  • 申请人地址： 云南省昆明市呈贡大学城云南民族大学
  • 专利权人： 云南民族大学
  • 当前专利权人： 云南民族大学
  • 当前专利权人地址： 云南省昆明市呈贡大学城云南民族大学
  • 主分类号： C01G23/08
  • IPC分类号： C01G23/08
一种微波钠化焙烧高钛渣制备人造金红石的方法
摘要：
本发明涉及一种微波钠化焙烧高钛渣制备人造金红石的方法，该方法包括高钛渣微波干燥、钠化改性处理、酸浸除杂与煅烧等步骤。该方法以微波为热源，提高了升温速率和加热效果，同时较传统焙烧相比，降低了反应能耗；焙烧工艺变得简单，既保证二氧化钛的品位，使得到的人造金红石满足氯化法生产钛白，又大大缩短了生产周期，降低了生产成本。该方法在微波干燥-微波钠化焙烧-酸浸除杂-煅烧后，可得到90%以上的高品位人造金红石。
摘要（英）：

The invention relates to a method for preparing artificial rutile by carrying out microwave sodium salt roasting on high-titanium slag. The method comprises the following steps: carrying out microwave drying on the high-titanium slag, carrying out sodium salt modification treatment, carrying out acid leaching for removing impurities, and calcining. The method provided by the invention has the advantages that microwave is taken as a heat source, so that heating rate and heating effect are improved, and reaction energy consumption is reduced compared with the traditional roasting; a roasting process is simplified, and the grade of titanium dioxide is guaranteed, so that the obtained artificial rutile meets titanium dioxide production by virtue of a chlorination process, the production period is also greatly shortened, and the production cost is reduced. According to the invention, after microwave drying-microwave sodium salt roasting-acid leaching impurity removal-calcining, high-grade artificial rutile with the grade above 90% can be obtained.

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