Title:
煙灰処理方法
Document Type and Number:
Japanese Patent JP5862305
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a treatment method for smoke ash which can recover lead with high efficiency while suppressing an increase in treatment cost, from smoke ash that is generated in refining a non-ferrous metal and contains lead and zinc where lead content is 5% or more, by utilizing steps and a facility for a crude zinc oxide production process.SOLUTION: The treatment method for smoke ash includes forming a mixture pellet of the smoke ash containing lead at high concentration with iron and steel dust containing chlorine, and charging the mixture pellet into a reduction roasting step in the crude zinc oxide production process, thereby efficiently performing a treatment for recovering lead from the smoke ash by a method similar to an existing method for treating iron and steel dust including a reduction roasting step.
Inventors:
Akihiro Tanabe
Kudo Mano
Atsushi Kaikake
Kudo Mano
Atsushi Kaikake
Application Number:
JP2012001067A
Publication Date:
February 16, 2016
Filing Date:
January 06, 2012
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B13/02; B09B3/00; C01G9/02; C22B1/02; C22B1/248; C22B5/16; C22B7/02; C22B19/34
Domestic Patent References:
| JP4285136A | ||||
| JP56009340A | ||||
| JP49107968A | ||||
| JP5132723A |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi