Hazardous or toxic waste destruction or containment – Destruction or containment of radioactive waste – Chemical conversion to a stable solid for disposal
Reexamination Certificate
2006-04-25
2006-04-25
Wachtel, Alexis (Department: 1764)
Hazardous or toxic waste destruction or containment
Destruction or containment of radioactive waste
Chemical conversion to a stable solid for disposal
C588S300000, C588S301000, C588S309000, C588S314000, C588S316000, C588S318000, C588S321000, C588S400000, C588S404000, C201S010000, C201S012000, C201S042000
Reexamination Certificate
active
07034198
ABSTRACT:
A conventional method of pyrolytically decomposing plastic to make low-molecular compounds is poor in efficiency of use of energy due to high heating temperatures (at least 600° C. and 800° C. at maximum).The invention provides that a functional powder is heated to a predetermined temperature and pieces of plastic to be disposed are caused to be contacted with the heated powder, the functional powder including a powder which does in an aqueous solution state show alkalinity, and a photo-catalyst effect powder.
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Osada Hideharu
Shimabara Tatsutoshi
Armstrong Kratz Quintos Hanson & Brooks, LLP
Osada Giken Co., Ltd.
Wachtel Alexis
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