During the recovery and processing of materials from natural resources reactions between ground raw materials and fluid media take place. Starting materials are mineral and fossil substances, e.g., ore and coal, and renewable resources. In the physical model the particles shrink during the reaction. The design of the formed particles depends on the deposit, type and quantity of impurities, on further pre-treatments and the disperse properties of raw materials. Molten materials can be purified, doped and shaped. Otherwise, particles formed from powders, granular or fibrous materials show a completely different chemistry after the reaction, but largely kept size and shape of the starting material. Others disperse properties such as bulk density, density and flow properties, are changing by the reaction. For additional product design (cleaning, shaping) downstream processes are required.