Title:
回収方法
Document Type and Number:
Japanese Patent JP7303430
Kind Code:
B2
Abstract:
To accelerate a settling speed of each component contained in steelmaking slag when the steelmaking slag is subjected to solid-liquid separation.SOLUTION: A process for recovering a calcium compound includes a magnetic separation step, a first collection step, a second collection step, and a settling step. At least one of an inorganic flocculant and an organic flocculant is used in the first collection step, the second collection step, and the settling step.SELECTED DRAWING: Figure 2
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Inventors:
Muneyuki Kamada
Yuusuke Sorata
Yoshiharu Iwamizu
Yuusuke Sorata
Yoshiharu Iwamizu
Application Number:
JP2019122189A
Publication Date:
July 05, 2023
Filing Date:
June 28, 2019
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C21C5/28; B01D21/01; B03C1/00; B03C1/16; B09B3/30; B09B5/00; C21C1/02; C21C7/00
Domestic Patent References:
| JP2018115366A | ||||
| JP2018020292A | ||||
| JP2016198702A | ||||
| JP2003145168A | ||||
| JP2004033833A | ||||
| JP2001038104A | ||||
| JP2015044149A | ||||
| JP2005013857A | ||||
| JP2010172885A |
Foreign References:
| WO2017163595A1 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK
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