News


February 10, 2025
Institute TOMS took part in the international scientific symposium Miner’s Week 2025, February 3-7

Institute TOMS took part in the international scientific symposium Miner’s Week 2025 held by MISIS University, February 3–7. The specialists of Mining audit and consulting department delivered a report on advanced approaches to create geometallurgical block models and assess process variability of ores.

December 23, 2024
Successful trials of a new laboratory flotation cell

In December 2024, Institute TOMS jointly with specialists of Tufekcioglu company and Sever Minerals JSC successfully carried out trials of a new advanced lab-scale flotation cell with computer-aided process control – TK LabFroth by Tufekcioglu.

October 14, 2024
Institute TOMS – one of the key sponsors of the 20th MINEX Mining and Exploration Forum, Moscow, 202

Institute TOMS acted as one of the key sponsors of the 20th MINEX Mining and Exploration Forum that took place in Moscow on 9-10 October, 2024. The event was held under the slogan “People. Technologies. Mineral Resources”

August 12, 2024
A multi day sail crossing of Lake Baikal flying the flag of Institute TOMS

This year TOMS team has crossed the world’s deepest lake Baikal on a swift-sailing yacht

July 22, 2024
Visit to the construction site of the copper plant MOF-3 of Almalyk Mining and Metallurgical Complex

TOMS specialists have visited the construction site of the copper plant MOF-3 of Almalyk Mining and Metallurgical Complex (Uzbekistan). The construction has been implemented within an investment project “Development of Yoshlik I deposit”. The deposit is rich in such valuable metals as gold, copper, silver, and molybdenum

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News

October 18, 2021

Accreditation to perform the Jar Mill test

In September 2021, the Metso:Outotec Jar Mill arrived and was installed in the Institute TOMS laboratory. The Institute’s comminution team was trained by M:O’s specialists and the lab was granted accreditation to perform the Jar Mill testing.

The data derived from the test allows a curve of specific energy vs. 80% passing product size (or other requested size fraction) to be generated, i.e. energy consumption required to grind material to a target size.

To run the test a 10-15 kg representative sample is required. Any coarse bulk material can be used as the test feed; it will be conditioned to a proper state by preliminary comminution operations.

Testing of fine products (finely ground ore, middling products, concentrates) is possible as well. Individual sample size and weight requirements will be determined depending on the material properties, specified targets and goals.

The mining industry makes use of different comminution technologies for secondary grinding duty, e.g., ball mills or high-intensity grinding mills. Nowadays, vertical stirred mills (Vertimill by M:O) are common in fine grinding applications. Since recently, vertical mills have been growing to become an alternative to ball drum mills within secondary and tertiary grinding circuits.

The bench-scale Jar Mill test using the Metso:Outotec procedure is aimed at direct sizing and design of commercial Vertimills.

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