Title:
TREATMENT METHOD FOR ALUMINUM DROSS RESIDUAL ASH
Document Type and Number:
Japanese Patent JP3580074
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a treatment method for aluminum dross residual ash in which metal aluminum and nitrided aluminum contained in aluminum dross residual ash can be oxidized efficiently and securely by a simple method and a chloride can be gasified and the aluminum dross residual ash can be made harmless.
SOLUTION: Aluminum dross residual ash is burnt at the temperature range of 1000°C or higher by a heat burner to oxidize residual metal aluminum in the aluminum dross residual ash, and when a nitrogen content and a chlorine content are removed, a part of aluminum dross after being burnt in a rotary kiln 2 is left therein, to which new aluminum dross residual ash D is added and burnt therein.
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Inventors:
Mitsuo Fujigo
Koji Mitamura
Koji Mitamura
Application Number:
JP6561597A
Publication Date:
October 20, 2004
Filing Date:
March 05, 1997
Export Citation:
Assignee:
Mitsubishi Aluminum Co., Ltd.
International Classes:
C01F7/02; C22B7/04; C22B21/00; B09B3/00; (IPC1-7): B09B3/00; C01F7/02; C22B7/04; C22B21/00
Domestic Patent References:
| JP9296230A | ||||
| JP7089750A | ||||
| JP7096265A | ||||
| JP8281238A |
Attorney, Agent or Firm:
Chiharu Shimizu
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