JPS6133046B2 - - Google Patents
Info
- Publication number
- JPS6133046B2 JPS6133046B2 JP57218933A JP21893382A JPS6133046B2 JP S6133046 B2 JPS6133046 B2 JP S6133046B2 JP 57218933 A JP57218933 A JP 57218933A JP 21893382 A JP21893382 A JP 21893382A JP S6133046 B2 JPS6133046 B2 JP S6133046B2
- Authority
- JP
- Japan
- Prior art keywords
- extracted
- extraction
- zinc
- acid
- metals
- 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.)
- Expired
Links
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000000605 extraction Methods 0.000 claims description 13
- 150000002739 metals Chemical class 0.000 claims description 10
- 235000006408 oxalic acid Nutrition 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 239000012074 organic phase Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- BSRKJFGTFRITNT-AYFQBXJRSA-N (7E)-5,8-diethyl-7-hydroxyiminododecan-6-ol 2-[4-[(Z)-hydroxyiminomethyl]phenyl]-5-nonylphenol Chemical compound CCCCC(CC)C(O)C(=N\O)\C(CC)CCCC.CCCCCCCCCc1ccc(c(O)c1)-c1ccc(\C=N/O)cc1 BSRKJFGTFRITNT-AYFQBXJRSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000000638 solvent extraction Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- -1 alkyl phosphoric acids Chemical class 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- VBIXEXWLHSRNKB-UHFFFAOYSA-N ammonium oxalate Chemical compound [NH4+].[NH4+].[O-]C(=O)C([O-])=O VBIXEXWLHSRNKB-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 150000004880 oxines Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- ZPEJZWGMHAKWNL-UHFFFAOYSA-L zinc;oxalate Chemical compound [Zn+2].[O-]C(=O)C([O-])=O ZPEJZWGMHAKWNL-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
【発明の詳細な説明】
本発明は酸性抽出試薬を使用する溶媒抽出法に
おいて、有機相に抽出された金属を効率よく回収
する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for efficiently recovering metals extracted into an organic phase in a solvent extraction method using an acidic extraction reagent.
溶媒抽出法は、製錬工程水や金属含有排水など
から金属を分離回収する方法で、基本的には、抽
出及び逆抽出の二工程から構成されるものであ
る。酸性抽出試薬を使用する場合には、酸性抽出
試薬をケロシンのような有機溶剤で希釈したもの
を抽出剤として、金属を含む水溶液と接触させ、
金属を抽出剤（有機相）へ抽出する。有機相中の
金属は、通常無機酸によつて逆抽出され、精製さ
れた金属塩水溶液が得られると同時に抽出剤は再
生され、抽出工程で再び金属の抽出に繰返し使用
される。逆抽出剤として使用されている無機酸は
硫酸や塩酸などである。たとえば、D2EHPA
（ジ−２−エチルヘキシルフオスフオリツクアシ
ツド）による亜鉛の溶媒抽出やヒドロキシオキシ
ム系のLIX 64Nによる銅の抽出では、逆抽出剤と
して硫酸が使用され、第３級カルボン酸であるバ
ーサテイツク酸によるニツケル、コバルトの溶媒
抽出では、塩酸が逆抽出剤として使用されてい
る。そして、D2EHPAやLIX 64Nによる溶媒抽
出で比較的低いPH値で抽出される金属では、逆抽
出剤濃度はおよそ１mole/以上を必要とする。
換言すれば、金属のモル数１に対し、10倍以上の
モル数を必要とする場合もある。たとえば、
D2EHPA中に亜鉛を抽出した有機相から亜鉛を
完全に逆抽出するには１mole/の硫酸が必要で
ある。 The solvent extraction method is a method for separating and recovering metals from smelting process water, metal-containing wastewater, etc., and basically consists of two steps: extraction and back extraction. When using an acidic extraction reagent, the acidic extraction reagent is diluted with an organic solvent such as kerosene and brought into contact with an aqueous solution containing the metal.
Extract the metal into an extractant (organic phase). The metal in the organic phase is usually back-extracted with an inorganic acid to obtain a purified metal salt aqueous solution, and at the same time the extractant is regenerated and used repeatedly in the extraction process to extract the metal. Inorganic acids used as back extractants include sulfuric acid and hydrochloric acid. For example, D2EHPA
In the solvent extraction of zinc with (di-2-ethylhexyl phosphor acid) and the extraction of copper with the hydroxyoxime-based LIX 64N, sulfuric acid is used as a back-extracting agent, and In the solvent extraction of cobalt, hydrochloric acid is used as a back-extracting agent. For metals extracted at relatively low pH values by solvent extraction with D2EHPA or LIX 64N, the back-extractant concentration needs to be approximately 1 mole/or higher.
In other words, the number of moles of metal may be 10 times or more per mole of metal. for example,
1 mole/mol of sulfuric acid is required to completely back-extract zinc from the organic phase from which it was extracted in D2EHPA.
本発明者は種々の逆抽出剤について実験を行な
つた結果、シユウ酸により効率よく金属を逆抽出
できることを見出した。酢酸、クエン酸、グリコ
ール酸、酒石酸などはいずれも逆抽出率は低く、
満足できる結果は得られなかつた。 The present inventor conducted experiments with various back-extracting agents and found that metals can be efficiently back-extracted using oxalic acid. Acetic acid, citric acid, glycolic acid, tartaric acid, etc. all have low back extraction rates;
No satisfactory results were obtained.
本発明の方法は、酸性抽出試薬により抽出され
た金属を含む抽出剤をシユウ酸水溶液、あるいは
シユウ酸アルカリもしくはシユウ酸アンモニウム
を含むシユウ酸水溶液と接触させて金属を水相に
移行させ、金属をシユウ酸塩として回収すること
を特徴とするものである。 The method of the present invention involves bringing an extractant containing metals extracted by an acidic extraction reagent into contact with an oxalic acid aqueous solution or an oxalic acid aqueous solution containing alkali oxalate or ammonium oxalate to transfer the metals to the aqueous phase. It is characterized by being recovered as oxalate.
酸性抽出試薬としては、カルボン酸、アルキル
リン酸、ヒドロキシオキシム、オキシン誘導体、
β−ジケトンなどがある。 Acidic extraction reagents include carboxylic acids, alkyl phosphoric acids, hydroxyoximes, oxine derivatives,
Examples include β-diketones.
また、この方式の適用できる金属としては、
銅、亜鉛、ニツケル、コバルト、希土類などシユ
ウ酸塩として沈澱するもの、及び鉄、アルミニウ
ムなどシユウ酸と錯体を形成し水に溶解するもの
がある。 In addition, metals to which this method can be applied include:
Some precipitate as oxalates, such as copper, zinc, nickel, cobalt, and rare earths, and others, such as iron and aluminum, form complexes with oxalic acid and dissolve in water.
更に、本方式の実施に当つては、常温より約80
℃までの任意の温度で行なうことができる。 Furthermore, when implementing this method, the temperature must be approximately 80
It can be carried out at any temperature up to °C.
実施例 １
8.7ｇ/の亜鉛を含む16％D2EHPAを0.3mole/
のシユウ酸水溶液と相比１で接触させて亜鉛を
逆抽出し、逆抽出率99.8％を得た。亜鉛は水相中
でシユウ酸亜鉛として沈澱する。Example 1 0.3 mole/16% D2EHPA containing 8.7 g/zinc
Zinc was back extracted by contacting with an aqueous oxalic acid solution at a phase ratio of 1, and a back extraction rate of 99.8% was obtained. Zinc precipitates as zinc oxalate in the aqueous phase.
実施例 ２
8.0ｇ/の亜鉛を含む10％Versatic10を0.2mol
ｅ／のシユウ酸水溶液と相比１で接触させて亜鉛
を逆抽出し、亜鉛を100％水相に移行させること
ができる。Example 2 0.2 mol of 10% Versatic 10 containing 8.0 g/zinc
Zinc can be back-extracted by contacting with an aqueous solution of oxalic acid at a phase ratio of 1 to transfer 100% of the zinc to the aqueous phase.
実施例 ３
2.4ｇ/の銅を含む10％LIX 64Nを0.4mole/
のシユウ酸水溶液と相比１で接触させて銅を逆抽
出したところ、銅は100％逆抽出された。Example 3 0.4 mole/10% LIX 64N containing 2.4 g/copper
When copper was back-extracted by contacting it with an aqueous oxalic acid solution at a phase ratio of 1, 100% of the copper was back-extracted.
また、2.8ｇ/のニツケルを含む10％LIX 64N
を0.4mole/のシユウ酸水溶液と相比１で接触さ
せたところ、ニツケルが100％逆抽出された。 In addition, 10% LIX 64N containing 2.8g/nickel
When it was brought into contact with a 0.4 mole/aqueous oxalic acid solution at a phase ratio of 1, 100% of nickel was back extracted.
LIX 64Nの場合、常温では分相が若干悪いが、
逆抽出は完全に行なわれた。 In the case of LIX 64N, phase separation is slightly poor at room temperature, but
Back extraction was performed perfectly.
実施例 ４
5.8ｇ/の鉄（）を含む16％D2EHPAを１m
ｏｌｅ／のシユウ酸水溶液と相比１で接触させて鉄
を逆抽出したところ、鉄は95％が逆抽出された。Example 4 1 m of 16% D2EHPA containing 5.8 g of iron ()
When iron was back-extracted by contacting it with an oxalic acid aqueous solution of ole/ at a phase ratio of 1, 95% of the iron was back-extracted.
Claims (1)
から逆抽出して金属を回収する場合において、逆
抽出剤としてシユウ酸を使用することを特徴とす
る金属の回収方法。1. A method for recovering metals, which comprises using oxalic acid as a back-extracting agent in the case of recovering metals by back-extracting the metals extracted from an organic phase with an acidic extraction reagent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57218933A JPS59110740A (en) | 1982-12-14 | 1982-12-14 | Recovery of metal from organic phase by oxalic acid in solvent extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57218933A JPS59110740A (en) | 1982-12-14 | 1982-12-14 | Recovery of metal from organic phase by oxalic acid in solvent extraction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59110740A JPS59110740A (en) | 1984-06-26 |
| JPS6133046B2 true JPS6133046B2 (en) | 1986-07-31 |
Family
ID=16727592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57218933A Granted JPS59110740A (en) | 1982-12-14 | 1982-12-14 | Recovery of metal from organic phase by oxalic acid in solvent extraction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59110740A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5867727B2 (en) * | 2012-12-17 | 2016-02-24 | 住友金属鉱山株式会社 | Separation method of rare earth elements |
| CN104451191A (en) * | 2014-12-03 | 2015-03-25 | 紫金矿业集团股份有限公司 | Dilution extraction process capable of improving copper recovery rate |
| CN106086406B (en) * | 2016-08-28 | 2018-05-29 | 中铝广西有色金源稀土有限公司 | A kind of renovation process of organic extractant |
| JP7389338B2 (en) * | 2019-12-16 | 2023-11-30 | 住友金属鉱山株式会社 | Method for producing nickel aqueous solution |
-
1982
- 1982-12-14 JP JP57218933A patent/JPS59110740A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59110740A (en) | 1984-06-26 |
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