Low Ferro Silicon Powder is a critical component in mineral processing, enabling effective separation of ores like gold, diamond, aluminum, and copper amid growing challenges of complex and scarce mining resources.

Production Technologies

Two advanced manufacturing processes define the current generation of low ferrosilicon powder:
**Milled-Type: Produced by mechanically crushing ferroalloy blocks, resulting in flaky particles with rough surfaces. Available in controlled sizes (65D, 100D, 150D, 270D), with 270D containing 85–93% particles below 45 μm, ideal for high-precision separation.
**Atomized-Type: Created by breaking molten metal with high-speed gas or water, producing nearly spherical particles at the micron level. These particles exhibit superior flow characteristics and reduced pipe clogging, with 97–100% below 212μm, perfect for high-flow heavy medium separation systems.

Chemical Composition

Si: 14–16%
Fe: 80–83%
C: <0.6%
S: <0.02%
P: <0.03%
The FeSi15 formulation (approximately 15% Si) delivers optimal separation results while maintaining excellent magnetic properties for easy recovery and cost reduction.

Applications

**Milled FeSi15** excels in flotation processes for gold, diamond, aluminum, and copper ores. Its flaky structure provides a large surface area, enhancing mineral contact and improving flotation efficiency.
**Atomized FeSi15** is ideal for aluminum recycling and heavy medium flotation. Spherical particles ensure excellent flow and function as effective reductants and collectors, improving aluminum purity and reducing impurities in scrap sorting.

Performance Advantages

**Milled FeSi15** offers multiple size options for various processes, stable chemical composition, high separation efficiency through density differences, and convenient moisture-proof packaging.
**Atomized FeSi15** provides superior flow characteristics, enhanced magnetic recovery for precise separation of copper, gold, and diamonds, accurate density matching capabilities, and low silicon content that aligns with green mining trends.

How to Choose a Suitable Low Ferro Silicon Powder？

When selecting low ferrosilicon powder, verify:
Uniform color and regular shape without impurities
Proper Si (14–16%) and Fe (80–83%) content
Appropriate particle size for your application
Double-layer ton bag packaging with moisture protection
Avoid powder degradation by choosing qualified suppliers with proper testing capabilities, as poor storage, high impurity levels, or inadequate cooling can compromise performance.

Why Choose LSFerroalloy?

LSFerroalloy stands as a professional supplier with advanced equipment and ISO 9001 certification. We ensure iron content is stable above 80%, high magnetism for better recovery, and offer free samples for evaluation. Our comprehensive quality control from raw materials to final testing guarantees reliable low ferrosilicon powder solutions for your mining operations.