ATTEST: Grindability test instrument for estimating rock attrition
| Reference number | |
| Coordinator | Luleå tekniska universitet |
| Funding from Vinnova | SEK 1 000 000 |
| Project duration | November 2023 - June 2025 |
| Status | Completed |
| Venture | The strategic innovation programme for Swedish mining and metal producing industry - SIP Swedish Mining Innovation |
| Call | Technical and social innovations for sustainable mineral and metal supply |
Important results from the project
The project developed and evaluated a new prototype for attrition grinding tests on small samples, focusing on autogenous milling. Goals were largely met, and the instrument showed reliable results comparable to established methods. Some improvement needs were identified, providing a basis for further refinement. The outcomes support resource efficiency and sustainability in the Swedish mining industry.
Expected long term effects
In the long term, the project provides a new method to characterize rock samples for grinding response. This enables faster, more resource-efficient analyses with reduced material needs. The method improves decision-making in exploration and process development, supporting sustainability and strengthening the competitiveness of the Swedish mining industry.
Approach and implementation
The project was carried out as planned, focusing on the design and testing of a prototype to characterize rock grinding response. Activities included design, manufacturing, evaluation, and comparison with established tests. Collaboration between academia and industry worked well. Some challenges arose during testing but provided valuable input for further development.