Title:
オートクレーブの立ち上げ方法及びこれを用いた硫酸ニッケル水溶液の製造方法
Document Type and Number:
Japanese Patent JP7183750
Kind Code:
B2
Abstract:
To provide a start-up method of an autoclave capable of smoothly starting-up an autoclave to shift to a steady operation stably.SOLUTION: A start-up method of an autoclave performs a pressure leaching process by blowing high-pressure air into a mixed slurry containing a pulverized nickel mat and a pulverized elemental sulfur preferably at a mixing ratio of the elemental sulfur 160 kg/ton per the nickel mat 1 ton and a slurry concentration of 100-400 g/L. After the mixed slurry is charged to the autoclave without preliminary temperature rising, the high-pressure air is blown into the autoclave at least within 8 hours from pulverization of the elemental sulfur.SELECTED DRAWING: None
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Inventors:
Kenji Yamamoto
Eiichi Nakagawa
Hiroyuki Mitsui
Eiichi Nakagawa
Hiroyuki Mitsui
Application Number:
JP2018229129A
Publication Date:
December 06, 2022
Filing Date:
December 06, 2018
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B23/00; B01J3/00; B01J3/02; B01J3/04; C01G53/10; C22B3/04
Domestic Patent References:
| JP2018150183A |
Attorney, Agent or Firm:
Norihisa Tsujikawa