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Reduction in Major Greenhouse Gas Emissions in Mineral Comminution Using Ultra-High-Intensity Blasting (UHIB)—A Study for the Chilean Mining Industry

チリ鉱業のための超高強度発破（UHIB）を用いた鉱物破砕における主要温室効果ガス排出削減 (AI 翻訳)

Jacopo Seccatore, Alex Contreras, Tatiane Marin

Minerals📚 査読済 / ジャーナル2026-04-30#省エネ
DOI: 10.3390/min16050476
原典: https://doi.org/10.3390/min16050476

🤖 gxceed AI 要約

日本語

本研究は、超高強度発破（UHIB）が鉱物破砕工程のエネルギー消費とGHG排出に与える影響を評価。チリの大規模鉱山を想定し、JKSimBlastとJKSimMetを用いてシミュレーション。硬鉱石で約18%、軟鉱石で30%以上のエネルギー削減を達成。UHIBは鉱山から工場までの戦略として有効。

English

This study evaluates Ultra-High-Intensity Blasting (UHIB) for reducing energy consumption and GHG emissions in mineral comminution under Chilean mining conditions. Simulations show energy reductions of ~18% for hard ore and >30% for soft ore, primarily through circuit simplification. UHIB is presented as an effective mine-to-mill strategy for energy efficiency and emission reduction.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

チリ鉱業の事例だが、日本は鉱物資源の多くを輸入に依存しており、サプライチェーン全体のScope 3排出削減に向けた知見として重要。破砕工程の効率化は、日本の資源調達における間接排出削減に貢献する可能性がある。

In the global GX context

This study provides quantitative evidence of how upstream process optimization in mining can significantly reduce energy demand and emissions. It aligns with global efforts to decarbonize industrial supply chains, particularly relevant for Scope 3 reduction in mineral-dependent industries.

👥 読者別の含意

🔬研究者:UHIBの鉱物破砕工程への定量的効果を示しており、今後のエネルギー効率研究のベンチマークとなる。

🏢実務担当者:鉱山会社はUHIBを実装することでエネルギーコストとGHG排出の削減が可能。

🏛政策担当者:鉱業の脱炭素化政策において、破砕工程の効率化を促進するインセンティブ設計に活用できる。

📄 Abstract（原文）

Comminution is the most energy-intensive stage in mineral processing and a major source of indirect greenhouse gas (GHG) emissions in mining. This study evaluates the impact of Ultra-High-Intensity Blasting (UHIB) on downstream comminution energy demand and associated GHG emissions under conditions representative of large-scale Chilean mining. Fragmentation from conventional blasting and UHIB was simulated using JKSimBlast, and the resulting particle size distributions were used as input for four comminution circuit configurations modeled in JKSimMet. Two ore hardness scenarios were analyzed: hard ore (Bond Work Index, BWI = 19 kWh/t) and soft ore (BWI = 11 kWh/t). Power draw of crushers and mills was used to estimate specific energy consumption and GHG emissions based on the Chilean electrical system emission factor. Results show that UHIB enables significant reductions in comminution energy demand, reaching approximately 18% for hard ore and over 30% for soft ore. These reductions are primarily associated with circuit simplification, including the removal of energy-intensive stages such as primary crushing and SAG milling. The results demonstrate that improved fragmentation can reduce downstream energy demand and carbon intensity, highlighting UHIB as an effective mine-to-mill strategy for energy efficiency and emission reduction.

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