How to wash heavy ore ore: detailed process?
Bleaching: adding aluminum powder, hydrogen gas, reducing Fe2+, bleaching
The physical and chemical processing method, bleaching and superfine grinding are the two key technology. Bleaching is obtained by roasting (remove carbon), pickling (to remove impurities, non-ferrous elements) therefore needs to grasp the roasting temperature and time, acid concentration, washing time and reducing agent adding amount and adding time, are should be a reasonable choice. The superfine grinding should be selected high mill, and a reasonable choice of the relevant parameters.
The ore after several times after the break to obtain a fine raw material of micron level, become clinker in roasting furnace, 2.5h, made from washed alkali, dilute acid pulping, adding sulfuric acid and aluminum (acid soluble in the reaction kettle, bleach), stirring 2.5h in the boiling temperature, obtained material, clean water to remove soluble salts press, and drying (170 DEG C) after a finished product. The technical performance of products meet the quality index of B grade IS03262 barite.
