Method of manufacture of carbon black by pyrolysis of rubber waste previously ground and from which the scrap has been removed
AssigneeInstitut Francais du Petrole
InventorsJean Morlec, Christian Hamon
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Abstract
The invention relates to a method of manufacture of carbon black by pyrolysis of rubber waste previously ground and from which the scrap has been removed. With this method, pyrolysis is carried out in the presence of at least one gas selected from water vapour, carbon dioxide, a combustion gas or a mixture of water vapour and at least one inert gas.
Claims4
A method of manufacturing carbon black by pyrolysis of ground, scrap-depleted rubber waste comprising conducting the pyrolysis in the presence of carbon dioxide, in a rotary kiln indirectly heated by combustion of gases generated during said pyrolysis, said kiln having an inlet and an outlet in which the pyrolysis area is operated at between approximately 600.degree. and 1,100.degree.C., the product being collected at a temperature of between approximately 150.degree. and 350.degree. C.
Dependencies are inferred from the claim text.