Title:
無害化ステンレススラグとその製造方法
Document Type and Number:
Japanese Patent JP3991562
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress the elution of hexavalent Cr and F from stainless steel reduction slag and to allow resource recovery thereof to subbase course materials, civil engineering materials or cement raw materials, or the like. SOLUTION: (1) The slag component is regulated to be made into Claim 1 or Claim 2. (2) The slag composition is controlled by a method of regulating the amount of a deoxidizing agent and a slag forming agent to be fed in a refining reduction period or a method for feeding a material containing insufficient components after refining reduction. (3) Brick waste materials which are industrial wastes are effectively utilized as flux materials for regulating the slag composition.
Inventors:
Yukitoshi Oyabu
Application Number:
JP2000238720A
Publication Date:
October 17, 2007
Filing Date:
August 07, 2000
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B09B3/00; C04B5/06; C21C5/54; C21C5/28; C21C7/00
Domestic Patent References:
| JP9165238A | ||||
| JP6171993A | ||||
| JP8026791A | ||||
| JP10158720A | ||||
| JP2001335823A |
Attorney, Agent or Firm:
Shoichi Hirose