Japan tests of vinyl chloride recycling system

Oct 20, 1997 02:00 AM

Sept. 1, 1997 In Japan the NKK Corp., the Plastic Waste Management Institute and another industry group said Monday they will test technology to decompose vinyl chloride waste for recycling without producing toxic chemicals.
The three will install a test facility for dehydrochlorisation at NKK's Keihin plant by January, targeting commercially viable recycling technology by 2000. Current methods of heat-resolving vinyl chloride tends to produce dioxin. Total investment in the facility is estimated at 200 million yen.
A rotary kiln furnace will be used to heat vinyl chloride to decomposition temperatures and scrub hydrogen chloride from it. The purged resin will then be used in blast-furnace steelmaking, and the hydrogen chloride will be recovered for recycling into hydrochloric acid for the iron works. Kiln furnaces, also used to incinerate cement, are said able to decompose waste materials without generating dioxin.

Source: not available
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