Method for processing rubber-containing waste
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United States of America Patent
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Jul 7, 2020
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N/A
app pub date -
Aug 21, 2019
filing date -
Mar 20, 2017
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Abstract
A method of processing of shredded rubber-containing waste involves its preliminary preparation, thermal decomposition in a furnace, separation of decomposition products into vapor-gas mixture and solid residue, and separation of a heavy hydrocarbon fraction from the vapor-gas mixture. Preliminary preparation of the waste is carried out by its blowing with water vapor until a waste temperature reaches 100° C., and thermal decomposition is carried out in residual oil in the starting phase, and afterwards in the atomized generated heavy hydrocarbon fraction and superheated water vapor, their weight ratio being (0.1-0.5):1. The heavy hydrocarbon fraction is separated from the vapor-gas mixture with water by atomizing it into the vapor-gas mixture flow at the rate of 5-15% of the mass flow rate of the mixture, while metal is extracted from the solid residue by magnetic separation, after which a product containing zinc oxide is separated by dielectric separation.
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