Electrical and electronic equipment
SILIVAL
PRODUCTION AND USE OF SECONDARY ALUMINIUM OXIDES FOR RUBBER FORMULATIONS
BEFESA, a leading company in aluminium recycling, has been developing a line of research for several years to implement an alternative raw material to the flame retardant additives used in the manufacture of plastic composite materials and rubbers. This material, commercially known as Paval®, is essentially a recycled aluminium oxide from the recovery of salt slag. Secondary aluminium oxide would constitute an alternative to primary Tri-Hydrated Aluminium (ATH), used as a flame retardant, of which the European manufacturing industry consumes more than 170,000 tonnes a year. Previous projects concluded with the challenge of optimising the amount of hydrated alumina in the oxide by studying the different variables that can affect its formation without altering the aluminium recycling process. The recycled origin of Paval® can hinder a constant supply of material, which is a constraint that prevents the immediate introduction of the product on the market.
BEFESA is leading the SILIVAL project, on which it has worked with the LEARTIKER Technology Centre.
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