Method for decomposing plastic

Details Method for decomposing plastic Method for decomposing plastic

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.

REFERENCES:
patent: 5116582 (1992-05-01), Cooper et al.
patent: 5480524 (1996-01-01), Oeste
patent: 5810920 (1998-09-01), Ueshima et al.
patent: 6063343 (2000-05-01), Say et al.
patent: 6288300 (2001-09-01), Lemus et al.
patent: 6524447 (2003-02-01), Carmignani et al.

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