Lectures 2019

Thursday, 26 September 2019, 19:30

"The Tellerhäuser pilot project: New processing attempts for domestic
complex ores in a big way"

Prof. Karl Gerald van den Boogaart, Head of Modeling and Evaluation,
Helmholtz Institute Freiberg for Resource Technology
177th Freiberg Colloquium, lecture hall at terra mineralia, Freudenstein Castle

A long tradition could revive in the ore mountains - ore mining. In cooperation with European colleagues, Freiberg raw material experts have shown for the first time in practice that complex ores from Saxony can be processed - in an energy-efficient, environmentally friendly and economical way. Thanks to modern raw material analyses, sensor-based sorting, the use of computer-aided process models and the development of new processing methods for the finest particles, it was possible to enrich several metal-containing minerals at the same time. The minerals concerned are tin, zinc, iron, copper and indium, which are extremely finely distributed in the domestic complex ores and could not be processed until now. At the 177th Freiberg Colloquium, Prof. van den Boogaart explains the strategy used by the scientists to tackle ore.

The r4 project "Preparation of fine-grained polymetallic native complex ores (AFK)", funded by the BMBF, and the European Horizon2020 project "Flexible and Mobile Economic Processing Technologies (FAME)" were jointly carried out. Especially the close cooperation with the local industrial partners Saxore Bergbau GmbH and UVR-FIA GmbH made the practical tests possible, but also the cooperation with the visitor mine Zinnkammern Pöhla e.V., where the complex ore was mined.

Thursday, 28 November 2019, 19:30

"Challenges to the phasing out of the brown coal mining in Saxony"

Oberberghauptmann Prof. dr. Bernhard Cramer
178th Freiberg Colloquium, lecture hall at terra mineralia, Freudenstein Castle

The ‘Freiberg Colloquium’ is a series of lectures of the Saxon State Office for Environment, Agriculture and Geology, of the Saxon Mining Authority, of the Geokompetenzzentrum Freiberg. e.V., of the Saxon State Archives/Mining Archives, of the TU Bergakademie Freiberg, of the Helmholtz Institute Freiberg for Resource Technology and of the terra mineralia.