JP2015206064A5 - - Google Patents
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- JP2015206064A5 JP2015206064A5 JP2014086026A JP2014086026A JP2015206064A5 JP 2015206064 A5 JP2015206064 A5 JP 2015206064A5 JP 2014086026 A JP2014086026 A JP 2014086026A JP 2014086026 A JP2014086026 A JP 2014086026A JP 2015206064 A5 JP2015206064 A5 JP 2015206064A5
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- ore
- particles
- slurry
- leaching
- screen
- Prior art date
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- 239000002245 particle Substances 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 238000002386 leaching Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 5
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 5
- 238000009854 hydrometallurgy Methods 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910001710 laterite Inorganic materials 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Description
第１発明のニッケル酸化鉱石の湿式製錬方法は、少なくともリモナイト鉱を含む原料鉱石を解砕分級して鉱石スラリーを製造する前処理工程と、前記鉱石スラリーを浸出する浸出工程と、を備え、前記前処理工程は、解砕された鉱石粒子を含む鉱石スラリーを、2mm以上25mm以下の篩い目を有する分級装置を用いて分級することで、オーバーサイズの鉱石粒子を除去する工程と、前記分級装置で得られた鉱石スラリーを、0.5mm以上2mm以下の目開きを有する格子目のスクリーンを用いて分級することで、オーバーサイズの鉱石粒子を除去するとともに、扁平状の鉱石粒子を除去し、Ni/Mg比の高い非扁平状の鉱石粒子を選択する工程と、を含むことを特徴とする。
第２発明のニッケル酸化鉱石の湿式製錬方法は、第１発明において、前記スクリーンの目開きが1.4mmであることを特徴とする。
Hydrometallurgical process of a nickel laterite ore of the first invention includes a pretreatment step of manufacturing the ore slurry was crushed and classified to ore containing at least limonite ore, a leaching step of leaching the ore slurry The pretreatment step is a step of removing the oversized ore particles by classifying the ore slurry containing the crushed ore particles using a classifier having a sieve mesh of 2 mm or more and 25 mm or less; and The ore slurry obtained by the classification device is classified using a screen having a mesh size of 0.5 mm or more and 2 mm or less, thereby removing oversized ore particles and removing flat ore particles. And a step of selecting non-flat ore particles having a high Ni / Mg ratio .
The nickel oxide ore hydrometallurgy method according to the second invention is characterized in that, in the first invention, the screen has an aperture of 1.4 mm.
第１発明によれば、ニッケル酸化鉱石を格子目のスクリーンを用いて分級することで、扁平状の鉱石粒子を除去でき、Ni/Mg比の高い非扁平状の鉱石粒子を選択することができる。その結果、浸出工程におけるニッケル浸出率が高くなる。
第２発明によれば、ニッケル酸化鉱石を目開きが1.4mmのスクリーンを用いて分級することで、Ni/Mg比の高い鉱石粒子を選択することができる。その結果、浸出工程におけるニッケル浸出率が高くなる。
According to the first invention, by classifying nickel oxide ore using a lattice screen, flat ore particles can be removed, and non-flat ore particles having a high Ni / Mg ratio can be selected. . As a result, the nickel leaching rate in the leaching process is increased.
According to the second invention, ore particles having a high Ni / Mg ratio can be selected by classifying nickel oxide ore using a screen having an aperture of 1.4 mm. As a result, the nickel leaching rate in the leaching process is increased.
Claims (2)
前記鉱石スラリーを浸出する浸出工程と、を備え、
前記前処理工程は、
解砕された鉱石粒子を含む鉱石スラリーを、2mm以上25mm以下の篩い目を有する分級装置を用いて分級することで、オーバーサイズの鉱石粒子を除去する工程と、
前記分級装置で得られた鉱石スラリーを、0.5mm以上2mm以下の目開きを有する格子目のスクリーンを用いて分級することで、オーバーサイズの鉱石粒子を除去するとともに、扁平状の鉱石粒子を除去し、Ni/Mg比の高い非扁平状の鉱石粒子を選択する工程と、を含む
ことを特徴とするニッケル酸化鉱石の湿式製錬方法。 A pretreatment step of producing a mineral ore slurry and then disintegrated and classified the ore containing at least limonite ore,
A leaching step of leaching the ore slurry,
The pretreatment step includes
A step of removing the oversized ore particles by classifying the ore slurry containing the crushed ore particles using a classifier having a sieve mesh of 2 mm or more and 25 mm or less;
The ore slurry obtained by the classification device is classified using a screen having a mesh size of 0.5 mm or more and 2 mm or less, thereby removing oversized ore particles and removing flat ore particles. And a step of selecting non-flat ore particles having a high Ni / Mg ratio, and a method for hydrometallurgy of nickel oxide ore.
ことを特徴とする請求項１記載のニッケル酸化鉱石の湿式製錬方法。 2. The nickel oxide ore hydrometallurgy method according to claim 1, wherein the screen has an aperture of 1.4 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014086026A JP2015206064A (en) | 2014-04-18 | 2014-04-18 | Wet smelting method of nickel oxide ore |
| PCT/JP2015/051508 WO2015159564A1 (en) | 2014-04-18 | 2015-01-21 | Wet-mode nickel oxide ore smelting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014086026A JP2015206064A (en) | 2014-04-18 | 2014-04-18 | Wet smelting method of nickel oxide ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2015206064A JP2015206064A (en) | 2015-11-19 |
| JP2015206064A5 true JP2015206064A5 (en) | 2016-01-07 |
Family
ID=54323783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014086026A Pending JP2015206064A (en) | 2014-04-18 | 2014-04-18 | Wet smelting method of nickel oxide ore |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015206064A (en) |
| WO (1) | WO2015159564A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6298947B1 (en) * | 2016-10-11 | 2018-03-28 | 住友金属鉱山株式会社 | Nickel oxide ore cleaning apparatus and nickel oxide ore cleaning method |
| JP2018184629A (en) * | 2017-04-25 | 2018-11-22 | 住友金属鉱山株式会社 | Manufacturing method of ore slurry and manufacturing device of ore slurry |
| JP6589950B2 (en) * | 2017-08-16 | 2019-10-16 | 住友金属鉱山株式会社 | Leaching treatment method, nickel oxide ore hydrometallurgy method |
| JP6729536B2 (en) * | 2017-11-08 | 2020-07-22 | 住友金属鉱山株式会社 | Leaching method, hydrometallurgical method of nickel oxide ore |
| JP7155639B2 (en) * | 2018-06-14 | 2022-10-19 | 住友金属鉱山株式会社 | Pretreatment method for nickel oxide ore raw material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2767142B1 (en) * | 1997-08-06 | 1999-09-17 | Le Nickel Sln | PROCESS FOR ENRICHING OXIDIZED NICKELIFE ORES |
| JP5446226B2 (en) * | 2008-09-19 | 2014-03-19 | 住友金属鉱山株式会社 | Method for hydrometallizing nickel oxide ore |
| JP5257501B2 (en) * | 2011-11-04 | 2013-08-07 | 住友金属鉱山株式会社 | Ore slurry manufacturing method and metal smelting method |
| JP5692313B2 (en) * | 2013-09-02 | 2015-04-01 | 住友金属鉱山株式会社 | Thickener device in ore slurry manufacturing process and method for controlling solid component ratio |
-
2014
- 2014-04-18 JP JP2014086026A patent/JP2015206064A/en active Pending
-
2015
- 2015-01-21 WO PCT/JP2015/051508 patent/WO2015159564A1/en active Application Filing
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