Title:
ニッケル高圧浸出残渣の固液分離方法
Document Type and Number:
Japanese Patent JP6984191
Kind Code:
B2
Abstract:
An object of the present invention is to provide a solid-liquid separation process of nickel high pressure leached residue capable of improving sedimentation property of leached residue without being influenced by pH change. A solid-liquid separation process of nickel high pressure leached residue for solid-liquid separating slurry after high pressure sulfuric acid leaching nickel oxide ore by flocculating solid component after preliminary neutralization of the slurry, wherein, at the time of solid-liquid separation, a flocculant is added to the slurry, and further, a coagulant for weakening electric repulsive force between particles is added.
Inventors:
Takenaka Kazumi
Takao Oishi
Takao Oishi
Application Number:
JP2017120185A
Publication Date:
December 17, 2021
Filing Date:
June 20, 2017
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C02F11/147; B01D21/01; C01G53/00; C02F1/56; C22B3/08; C22B3/22; C22B3/44
Domestic Patent References:
| JP2014501290A | ||||
| JP2005238181A | ||||
| JP2016113703A | ||||
| JP2017061733A | ||||
| JP2015061951A | ||||
| JP2014138918A | ||||
| JP2016153520A | ||||
| JP2002339020A | ||||
| JP2014101548A |
Foreign References:
| US20150182905 | ||||
| WO2016111324A1 | ||||
| WO2015093364A1 | ||||
| WO2014203661A1 | ||||
| US20160137524 | ||||
| WO2016132629A1 |
Attorney, Agent or Firm:
Akira Koike
Takaaki Kono
Hiroyuki Murakami
Seiji Iga
Takaaki Kono
Hiroyuki Murakami
Seiji Iga