Very low grade iron ore cannot be used in metallurgical plants and needs to be upgraded to increase the iron content and reduce the gangue content. A process adopted to upgrade ore is called beneficiation. Iron ore is upgraded to a higher iron content through concentration. Iron ore is being beneficiated all round the world to meet the quality requirement of Iron and steel industries. However, each source of iron ore has its own peculiar mineralogical characteristics and requires the specific beneficiation and metallurgical treatment to get the best product out of it. The choice of the beneficiation treatment depends on the nature of the gangue present and its association with the ore structure. Several techniques such as washing, jigging, magnetic separation, advanced gravity separation and flotation are being used to enhance the quality of the Iron ore.

Technology Summary of Chromite Ore Beneficiation Process/Beneficiation Of Nickel Ore:

1.On the popularization and application in magnetic separator and reverse flotation, high intensity magnetic separation (such as magnetic re-election) represented by the high quality iron concentrate ore dressing technology at the same time, the ore dressing process flow should be as efficient and simple, so should strengthen the research of mineral processing equipment, processing technology, as far as possible in the most appropriate and reasonable process to achieve the best effect. Reverse flotation technology has an important application prospect to improve metal recovery, should actively strengthen the study of reverse flotation reagents.

2. Attaches great importance to the iron concentrate on iron silicon reduction technology, future research should pay attention to reduce other harmful impurities technology.

3. Further strengthen disseminated extent very fine red iron ore and compound polymetallic ore beneficiation technology research, to further improve the utilization of lean red iron ore in China.

4. In grinding, equipment, in the future should pay special attention to energy-saving super finely equipment introduction and cooperative development, should introduce and absorb advanced foreign technology and equipment, improve the whole technical equipment level of China"s iron ore as soon as possible. At the same time supporting consider coarse grain behind the tail process and related equipment for the development of research work.

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