JP2023119164A - ニッケル鉱からのニッケルの浸出方法および硫酸ニッケルの製造方法 - Google Patents
ニッケル鉱からのニッケルの浸出方法および硫酸ニッケルの製造方法 Download PDFInfo
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- JP2023119164A JP2023119164A JP2022021869A JP2022021869A JP2023119164A JP 2023119164 A JP2023119164 A JP 2023119164A JP 2022021869 A JP2022021869 A JP 2022021869A JP 2022021869 A JP2022021869 A JP 2022021869A JP 2023119164 A JP2023119164 A JP 2023119164A
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- Prior art keywords
- nickel
- acid
- hydrogen bond
- organic
- leaching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000002386 leaching Methods 0.000 title claims abstract description 43
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 title claims abstract description 40
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 50
- 239000001257 hydrogen Substances 0.000 claims abstract description 50
- 239000012074 organic phase Substances 0.000 claims abstract description 49
- 239000002904 solvent Substances 0.000 claims abstract description 45
- 230000005496 eutectics Effects 0.000 claims abstract description 38
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 28
- 150000007524 organic acids Chemical class 0.000 claims abstract description 27
- 239000002253 acid Substances 0.000 claims abstract description 22
- 230000002378 acidificating effect Effects 0.000 claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 38
- 239000008346 aqueous phase Substances 0.000 claims description 29
- -1 quaternary ammonium halide Chemical class 0.000 claims description 17
- 239000000370 acceptor Substances 0.000 claims description 14
- 239000003960 organic solvent Substances 0.000 claims description 13
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 150000004665 fatty acids Chemical group 0.000 claims description 5
- 229910000480 nickel oxide Inorganic materials 0.000 abstract description 15
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 abstract description 14
- 239000002699 waste material Substances 0.000 abstract description 9
- 238000000605 extraction Methods 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 239000000243 solution Substances 0.000 description 14
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 10
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000000956 solid--liquid extraction Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
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- 229910001416 lithium ion Inorganic materials 0.000 description 4
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
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- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
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- 229910052736 halogen Inorganic materials 0.000 description 2
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 2
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- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
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- C—CHEMISTRY; METALLURGY
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
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- C22B3/1608—Leaching with acyclic or carbocyclic agents
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- C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic acids
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- C—CHEMISTRY; METALLURGY
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- C22B3/1608—Leaching with acyclic or carbocyclic agents
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-
- C—CHEMISTRY; METALLURGY
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- C01G53/10—Sulfates
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
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- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
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- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
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- C22B23/04—Obtaining nickel or cobalt by wet processes
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Abstract
Description
ニッケル浸出工程S101においては、本実施形態に係るニッケルを有機相に浸出させる方法が実施される。すなわち、特殊な有機相を用いて固液抽出を行って、ニッケル鉱からニッケル(Ni)を有機相に移動させる。
逆抽出工程S102においては、抽出溶媒(すなわち、水相)として硫酸を用いて逆抽出を行う。すなわち、ニッケル鉱から有機相に移動したニッケルを、水相に移動させる。硫酸は、硫酸ニッケルのアニオン(SO4 2-)源でもある。
表1に示す水素結合ドナーおよび水素結合アクセプターを含む深共晶溶媒、その他の溶媒、ならびに有機酸を用意した。これらを用いて、表1に示す成分を含有する抽出溶媒(有機相)を調製した。
HBTA:ベンゾイルトリフルオロアセトン
PhOH:4-(1,1,3,3-テトラメチルブチル)フェノール
LIX-63:7-ヒドロキシ-5,8-ジエチル-6-ドデカノンオキシム
TBAC:テトラメチルアンモニウムクロリド
TOPO:トリオクチルホスフィンオキサイド
TOMAC:メチルトリオクチルアンモニウムクロリド
PTSA:p-トルエンスルホン酸
表2に示す成分を含有する有機相を用いて、ニッケル酸化鉱から、ニッケルを抽出した。次に、表2に示す抽出液を用いて、逆抽出を行い、水相を回収した。水相に含まれる成分を定量分析し、NiおよびFeが浸出液から水相に移動した割合(水相抽出率)を求めた。結果を表2に示す。
表3に示す成分を含有する有機相を用いて、ニッケル酸化鉱から、ニッケルを浸出させた。得られた浸出液を、表3に示す有機溶媒にて希釈した。有機溶媒は、表3に示すよう用いた。次に、表3に示す抽出液を用いて、逆抽出を行い、水相を回収した。水相に含まれる成分を定量分析し、NiおよびFeが浸出液から水相に移動した割合(水相抽出率)を求めた。結果を、実施例12の結果と共に表3に示す。
Claims (7)
- ニッケル鉱を有機相と接触させることを含む、ニッケルを有機相に浸出させる方法であって、
前記有機相は、水素結合ドナーと水素結合アクセプターとを含む疎水性深共晶溶媒、および有機酸を含有し、
前記水素結合ドナーが、酸性の水素結合ドナーであり、
前記有機酸が、強酸である、
方法。 - 前記有機相中の前記有機酸の含有割合が、9質量%以上20質量%以下である、請求項1に記載の方法。
- 前記水素結合ドナーが、脂肪酸であり、前記水素結合アクセプターが、第4級アンモニウムハライドである、請求項1または2に記載の方法。
- 前記有機酸が、有機スルホン酸化合物である、請求項1~3のいずれか1項に記載の方法。
- 請求項1~4のいずれか1項に記載の浸出方法によって、ニッケル浸出液を得る工程と、
前記ニッケル浸出液に対して、硫酸を用いて逆抽出を行い、硫酸ニッケルを含有する水相を得る工程と、
を包含する硫酸ニッケルの製造方法。 - 前記水相を得る工程において、硫酸の濃度が2mоl/L以上である、請求項5に記載の製造方法。
- 前記水相を得る工程において、前記ニッケル浸出液を疎水性有機溶媒で希釈してから、逆抽出を行う、請求項5または6に記載の製造方法。
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JP2022021869A JP7541315B2 (ja) | 2022-02-16 | 2022-02-16 | ニッケル鉱からのニッケルの浸出方法および硫酸ニッケルの製造方法 |
US18/166,072 US20230257282A1 (en) | 2022-02-16 | 2023-02-08 | Method for leaching nickel from nickel ore and method for producing nickel sulfate |
EP23155581.4A EP4230752A1 (en) | 2022-02-16 | 2023-02-08 | Method for leaching nickel from nickel ore and method for producing nickel sulfate |
KR1020230018565A KR20230123441A (ko) | 2022-02-16 | 2023-02-13 | 니켈광으로부터의 니켈의 침출 방법 및 황산니켈의 제조 방법 |
CN202310141338.8A CN116607019A (zh) | 2022-02-16 | 2023-02-14 | 从镍矿浸出镍的方法以及硫酸镍的制造方法 |
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