German technology
Humic Substances Based Products
Humintech GmbH
Am Pösenberg 9-13
D-41517 Grevenbroich

Telefon: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22
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Flotation is a physical-chemical separation process for fine-grained solids. It is based on the different surface wettability of particles: gas bubbles are easily attached to hydrophobic (water-repellent) surfaces and give the particles buoyancy. The prerequisite is, that the gas used is slightly soluble in water (the gas is therefore hydrophobic). As defined in VDMA Specification 24430, this is a separation process in which water-dispersed or suspended substances are transported to the water surface by means of gas bubbles and are then removed from the surface with a clearing device.

The process is used in mining to separate ores and gangue in aqueous slurry (suspension). Flotation has replaced the traditional desludging in most areas.


Humintech is a biotech company based in Grevenbroich, Germany. We are primarily focused on the research, development and industrial production of humic matter and humic acids for the agricultural sector.  Our products find further use in the feed, pharmaceutical and construction industry, in veterinary medicine and for ecological purposes such as water purification and soil decontamination.


Humintech GmbH

Am Pösenberg 9-13
41517 Grevenbroich / Deutschland 

Phone: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22