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US T965,002 I4Granted
Steam treatment of vulcanized-scrap-rubber pyrolysis char
AssigneeThe Firestone Tire & Rubber Company
InventorsGrant Crane, Edward L. Kay
Life of this patent
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Abstract
scrap rubber is pyrolyzed in the substantial absence of air and treated with steam. The steam treatment can be carried out simultaneously with the pyrolysis or subsequently or it may be carried out both in part simultaneously with the pyrolysis and subsequently. Different products are obtained.
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