Title:
酸化亜鉛鉱の製造方法
Document Type and Number:
Japanese Patent JP7415629
Kind Code:
B2
Abstract:
To provide a method of manufacturing zinc oxide ore capable of retaining a chlorine grade in a crude zinc oxide cake low by heightening a chlorine removal rate while suppressing usage of sodium carbonate in a wet process.SOLUTION: A method of manufacturing a zinc oxide ore includes: performing a chlorine amount-estimating process of estimating a content of a sodium aqueous solution-soluble chlorine of a crude zinc oxide cake raw material at any step before performing a wet process 20 in a production process of a zinc oxide ore including a reduction calcination process S10, a wet process S20, and a heating dry process S30; and performing a pH-adjusting process of adjusting a pH of a sodium carbonate aqueous solution to a pH corresponding to a content of the sodium aqueous solution-soluble chlorine of the crude zinc oxide cake raw material in a wet process S20.SELECTED DRAWING: Figure 1
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Inventors:
Toru Suzuki
Taro Kuwahara
Satoru Takatani
Takeshi Takahashi
Taro Kuwahara
Satoru Takatani
Takeshi Takahashi
Application Number:
JP2020019939A
Publication Date:
January 17, 2024
Filing Date:
February 07, 2020
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B19/34; B09B3/40; B09B3/70; C01G9/02; C22B1/02; C22B7/02; C22B19/30
Domestic Patent References:
| JP2013139618A | ||||
| JP2016145423A | ||||
| JP2002332529A | ||||
| JP2014084509A | ||||
| JP2002285255A | ||||
| JP2012201901A |
Foreign References:
| CN102108445A |
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Kazuyoshi Hayashi