METHOD OF UTILIZATION OF ASBESTOS AND/OR ASBESTOS-CONTAINING PRODUCTS

WIPO Patent Application WO/2013/055242

A4

The subject of claimed invention is a method of utilization of asbestos and/or products containing asbestos, in particular of asbestos-cement products like panels, plates and pipes, comprising the stages of shredding and thermal treatment, characterized in that initially shredded asbestos and/or products containing asbestos, and the supplementary materials that decrease the melting temperature of the mixture are subjected to a process of grinding until the grain sizes in the mixture fall within the range from 10 microns to 500 microns, then obtained loose material with mentioned additives is introduced into the tunnel or rotary kiln and subjected to a temperature gradually in the range from 1000 °C to 1500 °C, for 15 to 45 minutes. The main advantage of the method according to the invention is that it leads to final material, which is completely devoid of asbestos fibers and in consequence it is safe material that would not make any threat to humans health, and which may be subjected to further modification in order to obtain products of commercial value that can be used in various sectors of economy, particularly in building industry, e.g. in manufacture of concrete elements, materials for road foundation, etc.

PAWLIKOWSKI MACIEJ (PL)
WDOWCZYK LUKASZ (PL)
PIETRASZ ANDRZEJ (PL)
KAMUSINSKI WLADYSLAW (PL)

PCT/PL2012/000060

July 25, 2013

July 30, 2012

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PAWLIKOWSKI MACIEJ (PL)
WDOWCZYK LUKASZ (PL)
PIETRASZ ANDRZEJ (PL)
KAMUSINSKI WLADYSLAW (PL)

B09B3/00

KARCZMITOWICZ, Teresa (Trzebinia, PL)

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