Title:
METHOD FOR HIGH PRESSURE OXIDATION LEACHING OF METAL SULFIDE
Document Type and Number:
Japanese Patent JP2019143172
Kind Code:
A
Abstract:
To provide a method for high pressure oxidation leaching of a metal sulfide capable of reducing a loss of a recovery target metal.SOLUTION: In a method for high pressure oxidation leaching, when continuously supplying a raw material slurry containing a metal sulfide to an autoclave 1 having a plurality of reaction chambers 14a-14e and applying high pressure oxidation leaching to the metal sulfide to obtain a metal sulfate solution, cooling water is supplied to part of or all of the plurality of reaction chambers 14a-14e, and a supply amount of the cooling water to a high temperature reaction chamber 14a with highest heat of reaction generated inside from among the plurality of reaction chambers 14a-14e is set larger than an amount to consume evaporative latent heat of the same amount as the heat of reaction generated at the high temperature reaction chamber 14a.SELECTED DRAWING: Figure 1
Inventors:
SHIBAYAMA KEISUKE
YOKOGAWA TOMOHIKO
NAKAMURA SHINICHIRO
WATANABE YUUKAI
YOKOGAWA TOMOHIKO
NAKAMURA SHINICHIRO
WATANABE YUUKAI
Application Number:
JP2018025693A
Publication Date:
August 29, 2019
Filing Date:
February 16, 2018
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B23/00; B01J3/04; C22B3/04; C22B17/00; C22B19/20
Domestic Patent References:
| JP2017186589A | 2017-10-12 | |||
| JPS61113733A | 1986-05-31 |
Attorney, Agent or Firm:
Yamauchi Patent Office