TREATMENT OF WASTE CONTAINING OXIDE AND METHOD THEREFOR

Title:

TREATMENT OF WASTE CONTAINING OXIDE AND METHOD THEREFOR

Document Type and Number:

Japanese Patent JPH09287033

Kind Code:

A

Abstract:

To provide a method and a device for removing and recovering zinc and lead from a waste containing zinc and lead in an oxide state.

This treatment method comprises vaporizing and recovering zinc and lead converted into pure metals by mixing a reducing agent 2 with the waste containing zinc and lead in the oxide state such as a steel making dust 1, charging into a heat treating furnace 3, evacuating the furnace 3 and heating to reduce zinc and lead. The waste and the reducing agent are charged into the furnace 3 preferably after being mixed and briquetted. The recovered zinc or lead is preferably ingotted by providing an ingot case in a recovering device 5. The furnace 3 is preferably a rotary furnace and is preferably intermittently rotated.

Inventors:

OKADA YUJI
SHIRAKAWA HIROICHI
OKADA MASAMICHI
HARA TOSHIKATSU
SASAMOTO HIROHIKO
SUZUKI KAZUHIRO

Application Number:

JP12567396A

Publication Date:

November 04, 1997

Filing Date:

May 21, 1996

Export Citation:

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Assignee:

TOYOTA MOTOR CORP
AICHI STEEL WORKS LTD
TOYOKIN KK

International Classes:

B09B3/00; C22B5/16; C22B7/00; C22B7/02; C22B13/02; C22B19/30; (IPC1-7): C22B7/00; B09B3/00

Attorney, Agent or Firm:

田渕経雄

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