Preparation of Metallized Pellets from Panzhihua Titanium Concentrate by Pre-reduction

Aiming at the problems of high power consumption and low production capacity of titanium slag produced by direct use of titanium concentrate in smelting titanium slag.A new process for preparing metallized pellets from Panzhihua titanium concentrate,"internal carbon containing titanium concentrate pressure ball,rotary hearth furnace pre-reduction",has been developed.It is found that the main factors affecting metallization rate are:reductant proportion,reduction temperature,residence time,cooling method,etc.Industrial test results show that: The metallization rate of pellets is up to 70%,with a maximum of 72.65%. The scanning electron microscope and phase structure analysis of shows that:The phase composition of titanium concentrate has changed obviously by carbon-thermal reduction,transformation from ilmenite phase to anosovite,iron and so on.