Mechanochemical Devulcanization


Reclaim rubber is traditionally produced using thermochemical devulcanization, which relies on:

JSC „Gumos technologijos“ has developed and licensed a new process of rubber devulcanization. A stream of crumb rubber is devulcanized mechanochemically by converting it into Reclaim Rubber Powder (RRP) or Reclaim Rubber Material (RRM):

Rubber crumb production from ELT


Traditional methods of mechanical manufacture of Ground Tire Rubber or similar types of crumb rubber usually require significant energy resources along with large equipment installation and maintenance.  JSC “Gumos technologijos” offers an alternative, based on End of Life Tire (ELT) treatment in reactive gas atmosphere.  During this process, crumb rubber can be separated from tire beads, cords and plastics with much less energy. JSC “Gumos technologijos” tested a custom-built shredder, which could separate more than 90% of all rubber contained in ELT into crumbs. The obtained rubber crumbs could be directly used as a raw material for mechanochemical devulcanization. In a two stage process, which utilizes the reactive gas atmosphere and mechanochemical devulcanization, several times lower energy resources and much less mechanical processing were necessary to obtain rubber powder compared to traditional mechanical shredding.

 



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