中文
EnglishI. Policy Guidance: Reshaping the Development Pattern of Magnesite Industry from Three Dimensions
(I) National Level: Dual-Driven by Green Upgrade & Industrial Structure Optimization
(II) Provincial & Local Level: Deep Integration of Resource Control & Transformation Initiatives
1. Rigid Total Output Control
Anshan City concurrently carries out mining right consolidation, reducing the number of mining rights from 40 to 22 to foster large-scale leading enterprises.
2. Mandatory Energy Saving & Emission Reduction Targets
The Implementation Plan for the Transformation and Upgrade of Anshan Magnesite Industry (2021–2025) specifies special tasks to popularize energy-saving technologies such as high-efficiency suspension calcination and carry out new-type kiln renovation.
3. Special Rectification & Innovation Incentives
Meanwhile, mechanisms such as the task-oriented open bidding for research projects and industry-university-research alliances provide up to 5 million RMB in financial grants for technical breakthroughs including low-grade ore purification and solid waste recycling.
(III) Industry Standard Level: Mandatory Standard Upgrade to Boost Product Quality
Product Standard
Energy Consumption Standard
Emission Standards
Emission Standard of Air Pollutants for Lead and Zinc Industry (GB 25466.1-2025) and
Emission Standard of Air Pollutants for Refractory Materials Industry (GB 46790-2025).
The new standards take effect for newly-built enterprises on January 1, 2026; existing enterprises are granted a transition period until July 1, 2027. These documents will supersede previous relevant standards and elevate air pollution governance for the two industries.
Downstream Market Demand
II. Sequoia (Nanjing Sequoia): Technology for Light-Burned Magnesia Production via Flotation Powder & Magnesite Suspension Calcination
(I) Core Competitive Advantages
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High-efficiency Resource Utilization
The process is applicable to low-grade magnesite ore with MgO content ≥ 40%. Upgrading and impurity removal enables full resource utilization, fully complying with national policies to raise the added value of medium & low-grade ores. It strengthens raw material supply flexibility under rigid mining volume caps.
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Leading Energy-Saving Performance
Energy consumption per ton of product is cut by over 30% compared with traditional reverberatory kilns, far below the limit specified in YB/T 6310-2024, helping enterprises effortlessly pass energy conservation and emission reduction assessments.
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Eligibility for Capacity Replacement
As an advanced kiln technology officially promoted by regulatory policies, this system qualifies directly for capacity replacement projects with a replacement ratio of no less than 1.4:1, assisting enterprises in securing compliant capacity quotas during industry consolidation and rectification.
- Flexible Production Tuning
Technical innovations allow the same production line to manufacture multiple grades of finished products.
Sequoia has finalized the standardized design for 100,000 t/a and 200,000 t/a production lines, delivering agile and customized engineering solutions on demand.
(II) Guaranteed Technical Performance Indicators
- Heat consumption for light-burned magnesia calcination: ≤ 186 kgce/t (tar deduction included)
- Comprehensive power consumption for light-burned magnesia: ≤ 85 kWh/t
- Total comprehensive energy consumption: ≤ 200 kgce/t (calculated based on 95% CBM)
- NOₓ emission concentration: ≤ 100 mg/Nm³
- Dust emission concentration: ≤ 10 mg/Nm³
- SO₂ emission concentration: ≤ 50 mg/Nm³
- Noise level: fully compliant with current national standards
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