Method for disposal of waste synthetic high polymer
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsHayami Itoh, Mamoru Yamada, Yasuo Nozaki
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Abstract
Waste synthetic high polymer, especially those containing polyvinyl chloride and the like chlorine-containing synthetic resins are heated at 200.degree.-500.degree.C to thereby form a hot molten bath of fusible materials contained in the waste resin mixture and the chlorine-containing resins are effectively decomposed in the molten bath kept at the temperature of 200.degree.-500.degree.C with the generation of hydrogen chloride gas which can be recovered as hydrochloric acid.
Claims2
A method for the disposal treatment of a waste synthetic high polymer at least part of which is fusible at temperatures below 500.degree.C which comprises:
- a. heating said waste synthetic high polymer at a temperature of from 200.degree. to 500.degree.C to thereby melt said fusible portion thereof,
- b. decomposing the remainder of said waste synthetic high polymer in a hot molten bath formed of said melted fusible portion thereof at a temperature of from 200.degree. to 500.degree.C;
- and
- c. disposing of said hot molten bath, wherein at least a part of said hot molten bath is burned as fuel for heating the waste synthetic high polymer.
Dependencies are inferred from the claim text.