نتایج جستجو برای: comminution properties

تعداد نتایج: 869792  

Journal: :Archives of Mining Sciences 2023

The article concerns issues related to the copper ore ball mill grinding process, operating at different technological parameters. aim of study was investigate influence various parameters and feed characteristics on selected effects (comminution degree, yields finest particle size classes, ready for downstream flotation operations). research program included tests two lithological types Polish...

Journal: :Journal of Society of Materials Engineering for Resources of Japan 1996

Journal: :Minerals 2023

Mortars intended for plastering and masonry works normally comply to EN 413-1 and/or ASTM C91 specifications. This paper seeks assess the suitability of geopolymers (GPs) composed metakaolin seashell wastes applications. The sodium hydroxide silicate activators contained air-entraining molecules secure about 10% ± 2% air content. Just like cement-based mortars, test results showed that mechanic...

2005
Peter Bergman Shaoquan Kou

The objective of this thesis is to optimise the fragmentation at Boliden Minerals open pit mine Aitik. Blasting is one of the main operations in mining, and its performance has a major impact on the overall economy of the mine. The fragmentation process affects not only the local productivity and unit costs of the mining department. It also affects the performance of the subsequent comminution ...

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