The demand for raw materials is constantly growing!

We do research on intelligent and innovative solutions to meet it!

Graphic representation of the growing demand for raw materials; a detailed description in text form follows below the chart


► Text description of the above graph

In the above diagram by Krausmann et al., the respective global developments of the resource use (in billions of metric tons or gigatons per year) on the left, and the relative growth in population and GDP on the right are juxtaposed for the period from 1900 to 2009.


The resources are divided into the following categories (growth trends in the chart are shown as layers arranged one above the other, viewed from bottom to top):

  • Biomass (increase from approx. 5 Gt in 1900 to approx. 20 Gt in 2009)
  • Fossil energy carriers coal (incl. peat), petroleum, and natural gas (increase from approx. 1 Gt in 1900 to approx. 14 Gt in 2009)
  • Ores (incl. tailings) and industrial minerals (increase from approx. 0.2 Gt in 1900 to approx. 6 Gt in 2009)
  • Construction minerals (increase from approx. 0.7 Gt in 1900 to approx. 28 Gt in 2009)

The relative growth rates of the population and GDP are depicted in the graph by means of two superimposed lines. These illustrate that the worldwide population quadrupled between 1900 and 2009, while the corresponding GDP rose about 26-fold over the same period.


Increases in both the use of resources as well as population and GDP are exponential in nature.


The need for raw materials is increasing, from both primary and secondary sources, in Germany and worldwide. Our research efforts at the IAM focus on intelligent machines that help satisfy those needs in the future – sustainably as well as energy-efficiently!

“In this field of research, we are supported by young people who have decided to study mechanical engineering at the TU Bergakademie Freiberg, and thus will secure themselves stable, yet also very exciting career prospects. Contact us anytime!”

Prof. Dr.-Ing. Holger Lieberwirth
Director of the Institute


Group photo of the participants of the Rhineland field trip
Last week, Prof. Lieberwirth, research assistants Tim Hühnerfürst and Richard Kühnel, as well as a group of students from the Institute of Mineral Processing Machines paid a visit to manufacturers and operators of machines and equipment during a field trip to the Rhineland. … weiterlesen

Elisabeth Köstinger is giving her opening lecture at the EUMICON in Vienna
At the EUMICON 2018 from 26 – 28 September in Vienna, approx. 250 renowned representatives from research, business, politics, as well as the raw materials and processing industry spoke on new solutions for a sustainable and responsible way of supplying raw materials within Europe. … weiterlesen

Moscow Kremlin
From 17 - 21 September, the Institute of Mineral Processing Machines was on-site in Moscow for the 29th International Mineral Processing Congress (IMPC) - with more than 1,000 participants, it is the world's largest conference on current developments in the processing of mineral raw materials! … weiterlesen

Benjamin Hernandez during the measurement of the ore samples in the pilot plant
Benjamin Alexander Hernandez from Nicaragua, a degree student at the Lomonosov Moscow State University, completed his two-month stay at the Institute of Mineral Processing Machines at the end of August as part of the IAESTE program. … weiterlesen

Syndicate content