Basic introduction of manganese oxide ore dressing
Manganese oxide ore often occurs in pyrolusite and manganese nodules, and its deposit types also have many forms. Generally, the secondary manganese oxide ore of weathering deposit is the main ore, while the primary and secondary manganese oxide ore of sedimentary and hydrothermal deposits are the other types.
Generally speaking, the dressing method of manganese oxide ore is mainly gravity concentration. Weathered oxidized manganese ore often contains a large amount of slime and fine ore, and ore washing gravity separation method is adopted in production. After the raw ore is washed to remove the slime, some of the clean ore obtained can be used as finished ore, and some needs to be re selected with jigging and shaking table. The overflow from ore washing sometimes needs to be further recovered by gravity separation or strong magnetic separation.
Some sedimentary primary manganese oxide ores are generally complex, that is, manganese, iron, phosphorus, or coal gangue are closely associated, and the embedded particle size is very fine. The complex embedded thin manganese is several microns in size, which is not easy to separate, and it is often difficult to obtain high concentrate grade manganese carbonate ore. In addition, due to mining dilution, heavy medium and jigging gravity separation are used in production to remove gangue and obtain massive concentrate.
The roasting method can be used to remove sulfur from some sulfur rich manganese ores. The roasting production method of some carbonate rich manganese ores uses the elimination of volatile components to extract ores. In the iron bearing manganese oxide ore, the iron mineral is mainly limonite. Iron and manganese are difficult to be separated by gravity separation, flotation or strong magnetic separation, so reduction roasting magnetic separation method is required. The process of ore washing reduction roasting magnetic separation gravity separation has been adopted in industry.
At present, manganese oxide is mainly used in medicine, smelting, welding, ceramic kiln and dry battery manufacturing. It is believed that the prospect of manganese oxide products will be wider through the continuous refinement of manganese oxide ore dressing process in the future.
The ore dressing process of oxidized manganese ore introduced by SMMVIK above is expected to be helpful to you. As a supplier of mining machinery and equipment in domestic, SMMVIK has a full set of metal ore crushing and grinding equipment. Welcome to consult our online customer service for more information, and we will serve you wholeheartedly.