Process for recycling organic materials with the production of carbon nanotubes

A process for the recycling of organic waste materials, particularly waste plastics materials comprising a stage of pyrolysing the materials and a stage of converting the gaseous pyrolysis products into carbon nanotubes, in which conversion into nanotubes takes place through vapour phase chemical deposition in an inert gas with the help of an organometallic catalyst, particularly ferrocene, is described. The process therefore makes it possible to convert pyrolysis products which also comprise hydrocarbons of a toxic and harmful nature that would otherwise have to be removed in conventional treatments for recycling plastics materials by pyrolysis into a raw material of high value (nanotubes).