TREATMENT OF WASTE
    6.
    发明专利

    公开(公告)号:CA2103675C

    公开(公告)日:2004-04-06

    申请号:CA2103675

    申请日:1992-12-07

    Abstract: A method of destroying organic waste in a bath of molten metal and slag contained in a vessel (3) is disclosed. The method comprises injecting organic waste into the bath to form a primary reaction zone (13) in which the organic waste is thermally cracked and the products of the thermal cracking which are not absorbed into the bath are released into the space above the surface of the bath. The method further comprises injecting an oxygen- containing gas towards the surface of the bath to form a secondary reaction zone ( 17) in the space above the surface of the bath in which the oxidizable materials in the products from the primary reaction zone (13) are completely oxidized and the heat released by such oxidation is transferred to the bath. In order to facilitate efficient heat transfer from the secondary reaction zone (13) to the bath, the method further comprises injecting an inert or other suitable gas into the bath to cause molten metal and slag to be ejected upwardly from the bath into the secondary reaction zone (17).

    TREATMENT OF WASTE
    8.
    发明专利

    公开(公告)号:CA2139220C

    公开(公告)日:2005-10-04

    申请号:CA2139220

    申请日:1993-06-29

    Abstract: A method of treating inorganic solid waste in a bath of molten metal contain ed in a vessel (3) which has a space above the bath and a waste gas outlet (11) is disclosed. The method comprises injectin g waste into the bath to form a primary reaction zone (13) in which there are reactions between the waste and the bath or in which the waste undergoes a change of phase to convert the waste into more readily recoverable or disposable products. The method furth er comprises injecting oxygen-containing gas towards the surface of the bath to form a secondary reaction zone (17) in a section of the space above the bath through which oxidisable products released from the primary reaction zone (13) flow to rea ch the waste gas outlet (11) in the vessel (3) and in which the oxidisable products are oxidised and the heat released by such oxidation is transferred into the bath.

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