Freezing and milling waste tyres to make fine powders for manufacture | Scientific Research | Scoop.it
Lehigh Technologies makes micronised rubber powder by freezing old tyres with liquid nitrogen and then feeding into a mill described as a "turbo jet engine with teeth". The mill creates powders as small as 50 microns, enabling the powder to be used as a feedstock for more complex manufacturing. Relevant site: Lehigh Technologies: http://www.lehightechnologies.com/
Via Adam Johnson