Method for producing iron ore pellets
By incorporating granulated pyrolyzed biomass charcoal fines with controlled particle size and moisture, the method addresses the challenge of using renewable energy in iron ore pellet production, achieving high-quality and sustainable pellets.
WO2026102510A1PCT designated stage Publication Date: 2026-05-21SAMARKU MINERASAN SA +2
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SAMARKU MINERASAN SA
- Filing Date
- 2025-11-14
- Publication Date
- 2026-05-21
AI Technical Summary
Technical Problem
The iron ore pellet production process faces challenges in diversifying its energy matrix due to the high reactivity of charcoal fines and the fluctuating prices and availability of fossil fuels, necessitating a sustainable and controlled use of renewable energy sources.
Method used
A method involving mixing granulated pyrolyzed biomass charcoal fines with anthracite and/or coke, controlling particle size and moisture content, and adding it to the pelletizing mixture before forming raw pellets to ensure homogeneity and controlled combustion.
Benefits of technology
This approach results in high-quality pellets with reduced environmental impact, improved physical resistance, and efficient energy utilization, overcoming the limitations of fossil fuels.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure BR2025050521_21052026_PF_FP_ABST
Abstract
The present invention pertains to the technical field of methods for producing iron ore pellets in the travelling grate pelletising process. In particular, the aim of the present invention is to use a pyrolysed biomass in a fuel mixture used in the iron ore pellet production process. More specifically, the present invention relates to a method for producing iron ore pellets in the travelling grate pelletising process, characterised in that a granulated pyrolysed biomass composed of charcoal fines obtained from the sieving of granulated charcoal is mixed with a mineral fuel selected from anthracite and / or coke to form a mixed fuel; the mixed fuel is milled, with control of the particle size; and the milled mixed fuel is added to the mixture for pelletising, before the step of forming the raw pellet.
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