TREATMENT METHOD FOR ORE SLURRY, AND HYDROMETALLURGICAL METHOD FOR NICKEL OXIDE ORE

WIPO Patent Application WO/2021/193424

A1

Provided is a method by which the quality of an ore slurry supplied to an acid leaching treatment can be stabilized in the hydrometallurgical process for nickel oxide ore.　The present invention is a treatment method for an ore slurry supplied to an acid leaching treatment, the method comprising a classification step for subjecting an ore slurry of nickel oxide ore to a classification treatment using, as a first device, a device in which a plurality of hydrocyclones are configured in parallel, wherein: the first device includes a slurry supply tank for storing the ore slurry to be treated and supplying the ore slurry to the hydrocyclones; when the amount of the ore slurry in the slurry supply tank increases, the number of hydrocyclones used is increased, and the total supply flow rate of the ore slurry from the slurry supply tank is increased; and when the amount of the ore slurry in the slurry supply tank is reduced, the number of hydrocyclones used is reduced, and the total supply flow rate of the ore slurry from the slurry supply tank is reduced.

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ITO TSUYOSHI (JP)

PCT/JP2021/011354

September 30, 2021

March 19, 2021

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SUMITOMO METAL MINING CO (JP)

B03B5/28; C22B3/06; C22B23/00

WO2006078012A1	2006-07-27
WO2018030161A1	2018-02-15
WO2016181673A1	2016-11-17

JP2017052991A	2017-03-16
JP2019065340A	2019-04-25
JP2019065341A	2019-04-25
JPS5516821U	1980-02-02
JPH09192532A	1997-07-29

SHOBAYASHI Masayuki et al. (JP)

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