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About the Iron Ore

We process all major iron-bearing minerals.
Hematite (Fe₂O₃): High-grade (55-68% Fe)
Typically requires simple beneficiation, primary source of direct shipping ore (DSO).
Magnetite (Fe₃O₄): Lower initial grade (25-40% Fe)
Magnetic properties enable efficient concentration, produces premium pellet feed concentrates.
Goethite/Limonite: Hydrated oxides (35-55% Fe)
Often requires washing & dewatering, common in lateritic deposits.
Siderite (FeCO₃): Theoretical iron content 48.2%
Non-magnetic, easily oxidized, mostly carbonate and clay minerals, often associated with manganese, magnesium.

  • hematiteHematite (Fe₂O₃)
  • magnetiteMagnetite (Fe₃O₄)
  • goethiteGoethite
  • limoniteLimonite
  • siderite Siderite (FeCO₃)

Processing Technology

  • Magnetite Processing

    • After the raw ore is crushed and ground to a suitable particle size, it is fed into a magnetic separator. Magnetic magnetite particles are adsorbed and separated, while gangue is removed, directly yielding iron concentrate with an iron content of 55%–65%

  • Hematite Processing

    • Ordinary hematite requires initial magnetization roasting to reduce Fe₂O₃ to strongly magnetic Fe₃O₄ before magnetic separation.
    • Gravity separation (such as jigging or spiral chute), flotation, or combined beneficiation processes can also be used, with the specific method adjusted based on the gangue properties.

  • Limonite Processing

    • First, desliming is performed because grinding the ore easily produces a large amount of slime, which affects subsequent beneficiation.
    • Then, gravity separation or magnetic roasting-magnetic separation is used; if the impurity content is high, flotation is required to remove sulfur and phosphorus.

  • Siderite Processing

    • Single siderite can be processed using a roasting-magnetic separation method. During roasting, FeCO3 decomposes into Fe2O3, which is then converted to Fe3O4 by magnetization roasting before magnetic separation.
    • If it occurs in association with other iron ores, a combined gravity-flotation process is required to separate the different minerals before processing them separately.
Processing Technology Get Your Project Feasibility Analysis

Processing Plant Construction Workflow

  • Exploration iconExploration

    Foundation of all mining projects. Define ore body distribution, grade, and reserves for scientific decision-making.

  • Planning and Design iconPlanning & Design

    Translating exploration results into executable blueprints. Design efficient, economical, and safe production lines.

  • Construction iconConstruction

    Transforming designs into physical infrastructure. Ensure high-standard construction for rapid commissioning.

  • Operation and Maintenance iconOperation & Maintenance

    Steady-state production phase. Safe, stable, efficient, low-cost operation.

  • Sales and Logistics iconSales & Logistics

    Value realization phase. Fast, secure, low-cost value conversion.

  • Tailings Management iconTailings Management & ESG

    Critical for environmental safety and social license. Integrate safety, environmental responsibility, and social compliance.

Services

  • Engineering icon

    Engineering

    Providing professional services such as mine engineering consultation, test and research and mine design with innovative thinking. Mine design includes mining design, mineral processing design and tailings pond design.

  • Procurement icon

    Procurement

    Provide supporting equipment and materials for mining engineering projects, including mining and processing equipment, installation materials, mining supporting materials, installation and maintenance tools, mineral processing plant production lines, etc.

  • Construction icon

    Construction

    SBM can provide civil construction, installation and commissioning services for mining engineering projects. Civil engineering includes the construction of mining engineering facilities, construction of mineral processing plants, and other basic infrastructure construction.

  • Mine Construction Management icon

    Mine Construction Management

    According to customer needs, providing full-process management and services for mining engineering project, or management and services at several stages, including design management, procurement management, construction management, and commissioning management.

  • Mine Operation Management icon

    Mine Operation Management

    According to customer needs, providing comprehensive operation and management services for all kinds of mines. Building unique and complete global mining service center according to regional needs to provide testing and technical consultation, spare parts and mining consumables, after-sales and project expansion services, etc.

  • Mine Digitalization Upgrade icon

    Mine Digitalization Upgrade

    SBM’s digital mining solutions can enhance the project performance, safety and sustainability. Access to real-time data and analytics allows for informed decision-making, predictive maintenance, and optimization of mining processes.

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