Title:
MANUFACTURING METHOD OF ZINC OXIDE ORE
Document Type and Number:
Japanese Patent JP2020084235
Kind Code:
A
Abstract:
To provide a manufacturing method of a zinc oxide ore capable of maintaining a collection rate of zinc in a reduction roasting step further stably at a desired level, in manufacturing a zinc oxide ore using, as a raw material, a pellet including materials such as steel dust, carbon, etc.SOLUTION: A manufacturing method of a zinc oxide ore includes: a preliminary mixing step S10 of mixing a raw material ore containing a zinc oxide and other additive materials and conducting granulation to obtain a pellet for reduction roasting; and a reduction roasting step S20 of applying a reduction roasting treatment to the pellet for reduction roasting to obtain a crude zinc oxide dust. The pellet for reduction roasting is a pellet in which the raw material ore, a carbonaceous reducer and a limestone are mixed and granulated.SELECTED DRAWING: Figure 1
Inventors:
TAKAYA SATORU
SUZUKI KOKI
HARA HIROYUKI
SUZUKI KOKI
HARA HIROYUKI
Application Number:
JP2018217022A
Publication Date:
June 04, 2020
Filing Date:
November 20, 2018
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B19/34; C22B1/02; C22B1/248; C22B7/02; C22B19/30
Domestic Patent References:
| JP2014062304A | 2014-04-10 | |||
| JP2015120948A | 2015-07-02 | |||
| JPS60155631A | 1985-08-15 | |||
| JP2003003217A | 2003-01-08 | |||
| JP2012201901A | 2012-10-22 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi