Milled Ferrosilicon 15% for Dense Media Separation
Milled Ferrosilicon 15% is a finely processed ferrosilicon powder designed for Dense Media Separation (DMS), heavy media separation and mineral processing applications where controlled particle size and consistent chemical composition are critical to separation performance.
Our FeSi 14–16% DMS grade is supplied as a milled ferrosilicon powder with a controlled fine-particle distribution. The material is intended for industrial DMS circuits including mineral concentration, diamond processing and the separation of valuable ores from waste rock. Buyers evaluating an atomised ferrosilicon powder alternative can compare both product forms before ordering.
- Silicon (Si)
- 14–16%
- Aluminium (Al)
- ≤ 1%
- Particle Passing
- 90 ± 5% < 45 μm
- D90
- ≈ 44 μm
- Application
- DMS / Heavy Media
- Available Stock
- 359 MT
Particle-size specifications should be evaluated against the buyer's DMS circuit, target medium density and process requirements. Final density values are confirmed according to the applicable Technical Data Sheet.
FeSi 15% DMS Chemical Composition & Technical Specifications
Milled FeSi 15% for Dense Media Separation is supplied to a controlled chemical and particle-size specification for industrial DMS and heavy media separation applications. The target composition and PSD are selected to support consistent preparation and operation of ferrosilicon-based dense media.
The material contains approximately 14–16% silicon with aluminium controlled at ≤ 1%. Particle-size performance is defined by the specified fine fraction, with approximately 90 ± 5% passing 45 μm and a D90 of approximately 44 μm. Buyers requiring an ultra-fine specification may also consider a micronized ferrosilicon Si 15% product.
Final product conformity should always be verified against the applicable TDS, COA and PSD analysis supplied for the commercial batch. For a broader overview of product forms, see our comparison of milled vs. atomized ferrosilicon powder.
| Silicon (Si) | 14–16% |
|---|---|
| Aluminium (Al) | ≤ 1% |
| Passing 45 μm | 90 ± 5% |
| D90 | ≈ 44 μm |
| Product Form | Milled Powder |
| Application | DMS / Heavy Media |
| Density | As per final TDS |
DMS Applications · Mineral Processing
FeSi 15% Applications in Diamond, Manganese & Mineral Processing
Milled FeSi 15% for Dense Media Separation is used in mineral processing circuits where ferrosilicon-based dense media are required for the gravity separation of valuable minerals from lower-density waste material. The appropriate FeSi grade, particle size and medium density should always be selected according to the individual DMS plant and process design. Applications requiring a higher-silicon material can also review our ferrosilicon powder Si 45% grade.
| Application | DMS Objective | Why FeSi 15%? | Typical Processing Context |
|---|---|---|---|
| ◆Diamond DMSDense Media Diamond Recovery | Separation of diamond-bearing material from lower-density waste rock. | Fine milled ferrosilicon can be used to prepare a controlled dense medium for gravity separation. | Diamond ore concentration and heavy-media separation circuits. |
| MnManganese DMSHeavy Media Ore Separation | Concentration of manganese-bearing ore according to density differences. | Controlled particle size supports preparation of ferrosilicon-based dense media. | Manganese ore beneficiation and pre-concentration operations. |
| PbLead-Zinc DMSHeavy Media Mineral Processing | Density-based separation of ore fractions before downstream processing. | FeSi powder can provide the dense medium required for controlled gravity separation. | Lead-zinc ore concentration, pre-concentration and waste rejection. |
| MPMineral Processing DMSGeneral Heavy Media Separation | Separation of mineral feed according to specific-gravity differences. | Fine milled FeSi can be incorporated into dense media circuits requiring controlled PSD. | Ore beneficiation, pre-concentration and heavy-media separation plants. |
FeSi 15% selection should be evaluated together with the required medium density, feed characteristics, cyclone or separator design, particle-size distribution and operating conditions. For a project-specific recommendation, request the current TDS, COA and PSD analysis for the available batch.
Particle Size & PSD Requirements for DMS
For Dense Media Separation (DMS), the particle-size distribution of milled ferrosilicon is a critical quality parameter. A controlled fine PSD helps the ferrosilicon form and maintain a consistent dense medium suitable for mineral separation circuits.
The specified FeSi 15% DMS grade has approximately 90 ± 5% passing 45 μm, with a target D90 of approximately 44 μm. These parameters provide buyers with a clear reference for evaluating the fineness and distribution of the supplied milled ferrosilicon powder. To understand how this product form differs from a spray-atomized alternative, see what atomized ferrosilicon powder is.
PSD should be assessed using the applicable particle-size analysis method and confirmed against the batch-specific PSD report. Final acceptance criteria should be aligned with the buyer's DMS plant design, medium-density requirements and operating conditions.
Request a Current Price for FeSi 15% DMS
Request the latest commercial offer for Milled Ferrosilicon 15% for Dense Media Separation. Pricing is quoted according to your required quantity, destination, packing requirements and agreed shipping terms.
Bulk inquiries from 20 MT to 359 MT are welcome. Qualified buyers can also request the latest COA, TDS, PSD Analysis and Chemical Analysis together with the commercial quotation.
Get the Current FeSi 15% DMS Price
Send your quantity and destination to receive a current commercial quotation.
- Quantity
- Destination
- Application
- Packing
Technical FAQ · DMS Ferrosilicon
Frequently Asked Questions About FeSi 15% DMS
Technical and commercial answers for buyers evaluating milled ferrosilicon for Dense Media Separation applications.
01What is FeSi 15% DMS grade?
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FeSi 15% DMS is a milled ferrosilicon powder formulated for Dense Media Separation and heavy-media mineral processing. The available specification is based on approximately 14–16% silicon, with controlled aluminium content and particle-size distribution suitable for the buyer's DMS process requirements.
02What is the particle size of this milled FeSi 15%?
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The current specification indicates approximately 90 ± 5% passing 45 μm, with a D90 of approximately 44 μm. Final PSD values should always be confirmed against the batch-specific PSD analysis supplied with the material.
03Can FeSi 15% be used for diamond DMS?
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Yes. Ferrosilicon-based dense media are used in diamond DMS and heavy-media separation circuits. Suitability depends on the required medium density, separator or cyclone configuration, ore characteristics, operating conditions and the plant's technical specification.
04Is this product a 270D ferrosilicon product?
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The product should not be presented as a specific branded 270D product. Where the final technical data support it, the material may be described as 270D-equivalent by relevant technical characteristics, subject to comparison with the buyer's required specification and test data.
05What quantity of FeSi 15% DMS is available?
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The currently stated commercial availability is 359 MT, with bulk quotation requests accepted from 20 MT up to the available quantity, subject to final stock confirmation.
06Can I request COA, TDS and PSD analysis?
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Yes. Qualified buyers can request the available COA, TDS, PSD analysis, chemical analysis and packing details before placing a commercial order. Batch-specific documentation should be reviewed against the buyer's technical requirements.
07How can I get the current FeSi 15% DMS price?
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Send your required quantity, destination, application and preferred packing details to the export team. A current quotation can then be prepared according to the specific commercial and shipping requirements.
Milled FeSi 15% for Reliable DMS Procurement
Milled Ferrosilicon 15% is a specialized material for Dense Media Separation, heavy-media separation and mineral processing. For industrial buyers, the key purchasing considerations are not only silicon content, but also particle-size distribution, aluminium level, batch consistency, technical documentation and supply availability.
With 359 MT currently available, buyers requiring 20 MT or more can request a current commercial quotation together with the relevant technical documents. Final product suitability should be evaluated against the specific DMS plant and process requirements.
Need FeSi 15% DMS for Your Plant?
Send your required quantity and destination to receive the current commercial offer and technical documentation.
Mahboubeh Kharmanbiz
Mahboubeh Kharmanbiz is the CEO of Persian Ferrosilicon and works across international business development, ferroalloys, metallurgical raw materials and export strategy. Her work focuses on connecting technical product information with the practical requirements of manufacturers, procurement teams and international industrial buyers.