Procedures for Treating Ferrous Titanium Raw Materials
Procedures for Treating Ferrous Titanium Raw Materials
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DOI：
10.15242/ijrcmce.iae0316403
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
E. Gock;V. Vogt;M. Achimovičová
中科院分区：
文献类型：
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作者：
E. Gock;V. Vogt;M. Achimovičová
本发明的主题是一种新的反应机理，在该反应机理过程中，天然铁钛矿可以在氢气存在下在50°C下使用稀硫酸（40%）以初始状态溶解。在新工艺中，钛原料与惰性低于氢的金属添加剂一起研磨，以产生最高堆积密度的团块。当加入稀硫酸时，在接触表面处产生的原子氢导致四价钛部分还原为三价钛，从而在50°C和环境压力下引发自发且几乎完全溶解。在通过结晶分离铁之后，可以提取TiO2精矿作为生产钛合金的原料。
The subject of the invention is a new reaction mechanism, during which natural ferrous titanium minerals can be dissolved using dilute sulfuric acid (40%) at 50°C in the presence of hydrogen in statu nascendi. In the new process, titanium raw materials are milled with a metal additive that is less noble than hydrogen in order to generate briquettes of the highest bulk density. The atomic hydrogen that develops at the contact surfaces when adding diluted sulfuric acid, leads to a partial reduction of quadrivalent to trivalent titanium, thereby initiating a spontaneous and almost complete dissolution at 50°C and ambient pressure. After the separation of the iron by means of crystallization, it is possible to extract a TiO2 concentrate as raw material for the production of titanium alloys.