Introduction to molybdenum ore dressing process and equipment

Process advantages

•Re-grinding and re-selection of coarse concentrates to improve concentrate indicators；

•According to the specific nature of the ore, the concentrate re-grinding process is selected for sorting；

•Energy consumption is reduced by 30% and the recovery rate is increased by more than 10%；

Application area

The molybdenum ore dressing production line can be applied to a single molybdenum ore or difficult-to-select molybdenum ore with more complex ore properties, close symbiosis with sulfide minerals, and fine particle size.

Process advantage

Stage grinding and stage sorting to improve concentrate indicators

In the case of coarse grinding, the mixed coarse selection is carried out, and the resulting coarse concentrate is further selected after grinding.The amount of re-ground concentrate is small, and the monomer dissociation of the mineral can be achieved, which can obtain high-grade and high-recovery concentrates while saving energy consumption.

Strengthen the flotation process to improve the grade of molybdenum concentrate

Strictly implement the pharmacy system in the rough selection section, control the dosage of the pharmacy, and achieve “early collection if you can get it early” to reduce multiple cycles and inaction loss; make full use of the secondary enrichment effect of the foam, and through appropriate addition of water, the concentrate foam is rinsed to reduce impurities in the foam, and achieve the purpose of strengthening flotation.

Production example

The main valuable mineral of a certain mine is pyromolybdenite, which has a high content of quartz in non-metallic minerals, and gangue minerals are severely deformed.The process flow of the selection plant is one rough selection, two sweeps, and four selections. The grade of raw ore molybdenum is 0.38%. In recent years, due to the increase in mining depth, the nature of the ore has changed, and the flotation index is poor, resulting in more loss of molybdenum metal.Later, after on-site investigation and analysis, Xinhai determined the cause of the problem, and determined its process after many tests: one stage of grinding of raw ore, one coarse selection, one coarse selection, one coarse concentrate re-grinding, three sweeps, and seven selections after re-grinding to achieve better indicators. Through this transformation, a new process flow and pharmaceutical system were adopted, and while improving the original technical indicators, pharmaceutical, personnel and management costs were saved, and greater economic and social benefits were created for the enterprise.