Molybdenum Ore Production Line and Process Solution

Molybdenum Ore Production Line and Process Solution

I. Program Overview

Molybdenum ore (MoS₂) often coexists with pyrite, chalcopyrite, bismuthite and other sulfide minerals, with fine embedded particle size and complex selectivity. Molybdenum ore production line and process solution for the characteristics of molybdenum ore, the use of "stage grinding - stage selection" as the core of high-efficiency flotation process, combined with coarse concentrate regrinding, enhanced flotation, refined pharmaceutical system, to achieve molybdenum concentrate grade ≥ 45%, recovery rate of more than 90%, while reducing energy consumption by 30%. Molybdenum ore beneficiation production line and process plan is suitable for single molybdenum ore or complex symbiotic sulfide ore, especially for fine-grained embedded difficult to select molybdenum ore has significant advantages.

Second, molybdenum ore dressing process details

1. Crushing and grinding

• Coarse crushing: Jaw crusher (C series) crushes the raw ore to 100-150mm.

• Fine crushing: Cone crusher (HPY multi-cylinder hydraulic type) crushing to -10mm.

• Stage grinding:

  • Rough grinding: Ball mill (MQY type) and spiral classifier closed circuit, grinding to suitable particle size, mixed roughing.

  • Coarse concentrate regrinding: coarse concentrate is finely ground by tower mill or vertical mill to ensure monomer dissociation and reduce over-crushing.

2. Flotation separation (core stage)

(1) Mixed roughing

• Pharmacy system:

  • Capture agent: non-polar hydrocarbons.

  • Foaming agent: enhance foam stability.

  • Inhibitor: inhibit iron ore sulfide, copper minerals.

• Flow: Roughing rapid tail throwing, coarse concentrate into regrinding, tailings sweeping as appropriate.

(2) Stage selection

• Multi-stage selection (3-5 times):

  • Add a small amount of trapping agent to each stage of selection, and utilize froth flushing technology to reduce impurity entrainment.

  • The flotation column is used to replace the mechanical flotation machine to improve the sorting precision and increase the grade of molybdenum concentrate by 5-10%.

(3) Molybdenum-sulfur separation (optional)

• If containing pyrite:

  • Suppress sulfurous iron ore, suppress carbonaceous veinstone.

3. Tailings treatment and recycled water utilization

• Tailings dewatering: high-efficiency thickener + filter press, water reuse rate ≥85%.

• Wastewater treatment: neutralization and precipitation method to treat cyanide-containing wastewater, up to standard discharge.

Third, molybdenum ore production line core equipment configuration

Fourth, molybdenum ore beneficiation production line and process technology advantages

1. Stage grinding - stage sorting:

   • Coarse concentrate regrinding reduces energy consumption by 30% and increases molybdenum recovery rate by more than 10%.

2. Enhanced flotation process:

   • Foam flushing + flotation column concentrating, stable concentrate grade ≥45%.

3. Refined pharmaceutical system:

   • Combined inhibitors effectively separate molybdenum-sulfur-copper minerals.

4. Comprehensive utilization of resources:

   • Synchronous recovery of associated copper, bismuth and other valuable metals, maximizing economic benefits.

V. Application Cases

A porphyry molybdenum project (including pyrite):

• Raw ore grade: 0.08% Mo, 12% pyrite content.

• After adopting the molybdenum production line and process solutions:

  • Molybdenum concentrate grade: 47% Mo, recovery rate 92%;

  • Pyrite concentrate: 45% sulfur grade, 25% increase in comprehensive revenue.

VI. Customized Service

According to the nature of molybdenum ore (e.g. embedded particle size, type of co-occurring minerals), we can provide:

• Molybdenum ore beneficiation process optimization: adjust the grinding fineness, the number of flotation sections;

• Molybdenum production line equipment selection: using ultra-fine mills to process very fine-grained molybdenum ore;

• Environmental protection program: cyanide replacement chemicals (such as environmental inhibitors).

For detailed molybdenum ore production line and process solutions or project technical consultation, please contact us, we will configure the best molybdenum ore beneficiation production line program and quotation for you.