Tailings re-election process and resource utilization overall solution

I. Overview of Tailings Re-election and Resource Utilization Solution

Tailings re-election and resource utilization is a systematic engineering technology for the deep development and efficient utilization of all kinds of metal and non-metal tailings from the dual objectives of comprehensive resource recovery and environmental protection. This program integrates two major links of re-election recovery and tailings resource utilization, through the efficient separation of valuable components in the tailings and the high value utilization of the remaining tailings in multiple ways, to truly realize the tailings "eat up the clean", to create economic and environmental benefits for the customer's double value.

Tailings re-election process

1. Precious metal tailings re-election

Gold tailings processing:

• Adopt whole mud cyanidation + carbon slurry process to recover residual gold efficiently.

• Tailings are screened and filtered to realize dry stack treatment.

• Simultaneous recovery of iron and other valuable elements through magnetic separation/gravity separation process

• Equipped with professional cyanide degradation treatment system to ensure environmental safety.

Silver tailings treatment:

• Flotation to recover residual silver minerals

• Soluble silver is treated by leaching-replacement process.

• Adopting environmentally friendly thiourea method to treat difficult silver tailings.

2. Non-ferrous metal tailings re-election

Lead and zinc tailings:

• Gravity separation to recover residual lead and zinc minerals

• Flotation to separate quartz and sericite and other non-metallic minerals

• Magnetic separation process to recover magnetic minerals

Copper Tailings:

• Flotation to recover residual copper minerals

• Acid leaching-precipitation to extract refractory copper

• Magnetic separation to recover associated magnetite

Tungsten tailings:

• Centrifugal concentrator for roughing and enrichment

• Shaking table-flotation combined process for concentration

• Wet strong magnetic separation to assist the recovery of fine-grained tungsten minerals

3. Re-election of ferrous metal tailings

Iron tailings:

• High gradient magnetic separation to recover fine-grained iron

• Reverse flotation to remove silicon to improve the grade of iron ore concentrate

• Acid Leaching for Difficult Iron Tailings

• Innovative flocculation-magnetic separation combined process

4. Non-metallic tailings re-election

Phosphorus tailings:

• Positive flotation treatment of siliceous phosphorus tailings

• Reverse flotation treatment of calcareous phosphorus tailings

• Classification and desliming pretreatment to improve sorting efficiency

Graphite tailings:

• Segmented Grinding and Segmented Separation Process

• Recovery of fine graphite by flotation

• Shaking table sorting to assist purification

For more information about tailings reelection process for more mineral types, please contact us for more information.

Resource utilization of tailings after tailings reelection (core of circular economy)

We not only help you efficiently recover metals, but also provide industry-leading tailings resource utilization technology, completely solve the solid waste disposal problems and create new profit growth points.

Core value:

• 100% Resourcefulness: Completely solve the environmental risks and land occupation problems caused by tailings stockpiling.

• Green and low carbon: each ton of tailings resource utilization can reduce carbon emissions by about 0.8 tons on average, helping enterprises to achieve the dual-carbon goal.

• Value-added income generation: turning waste into treasure, creating a second profit center in addition to metal recycling.

High-value utilization direction:

1. Mining filler material: used for mine backfill, reducing the cost of mine backfill repair

2. Raw material for cement production: rich in iron and silica, it can be used as raw material for cement, effectively reducing the cost of cement production.

3. Road base material: used in road base layer and bedding construction, with performance in full compliance with engineering construction standards.

4. New building material products: production of no-burn bricks, permeable bricks, blocks and other green building material products, with a broad market prospect.

5. Concrete Admixture: fine grinding as mineral admixture, can improve the working performance and durability of concrete.

6. Gel material for road: replacing cement, low cost, huge market.

7. Firing-free ceramic granule: production of lightweight building materials, the use of firing-free process, energy saving and environmental protection.

Advantages of tailings treatment technology

Comprehensive utilization of resources:

• The recovery rate of valuable metals is increased by 15-30%.

• Tailings resource utilization rate of 95% or more

• Realize the full quantitative utilization of solid waste

Environment-friendly:

• Wastewater recycling utilization rate >90%

• Harmful substances are treated according to standards

Significant economic benefits:

• Short payback period

• Lower operating cost than primary mine treatment

• High value-added products

Advanced technology:

• Modular design, flexible configuration

• Large adjustable range of process parameters

V. Suggestions for tailings treatment program configuration

Customers can choose flexibly according to the actual investment budget and resource target:

Option A: Separate sorting program

• Content: focus on the recovery of valuable metals in the tailings

• Characteristics: relatively small investment, quick results, core solution to the problem of metal recovery

Option B: Sorting + Resourcing Co-production Solution

• Content: On the basis of metal recovery, supporting the construction of tailings deep-processing production line, the production of high-value building material products.

• Characteristics: Realize the full quantitative utilization of solid waste, maximize the long-term comprehensive benefits, and bid farewell to the cost of solid waste disposal.

Tailings treatment technology service support

Provide a full range of tailings re-election and resource utilization solutions:

1. Tailings property analysis: Valuable components testing and tailings re-election test

2. Process design: tailings re-election process design and equipment selection and configuration

3. Production support: installation and commissioning services and operator training

4. Environmental protection solutions: harmless treatment of tailings and wastewater recycling design

5. Resource utilization scheme: tailing high value utilization technology scheme and market docking.

Seven, successful cases

Case 1: a gold mine tailings re-election and resource utilization project

• Processing scale: 1 million tons/year

• Process flow: carbon slurry method to recover gold + magnetic separation to recover iron + tailings preparation of new building materials

• Operation index: 71% gold recovery rate, 65% iron ore concentrate grade, 100% tailings resourceization rate

Case 2: an iron ore tailings re-election project

• Innovative process: flocculation-magnetic separation combined process

• Project benefits: iron recovery rate increased by 25%, the annual benefit of 30 million yuan, tailings are all used in cement production.

If you need to get the detailed technical solution of tailings re-election process and resource utilization plan, or project consultation, please contact our professional technical team. We will provide you with tailor-made tailings overall solutions, including process design, equipment selection and investment budget, etc., to help you really realize the tailings into treasure, welcome to contact us.