JPS62275024A - Method for recovering noble metal - Google Patents
Method for recovering noble metalInfo
- Publication number
- JPS62275024A JPS62275024A JP11541186A JP11541186A JPS62275024A JP S62275024 A JPS62275024 A JP S62275024A JP 11541186 A JP11541186 A JP 11541186A JP 11541186 A JP11541186 A JP 11541186A JP S62275024 A JPS62275024 A JP S62275024A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- ammonium salt
- noble metal
- anions
- quaternary ammonium
- 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
Links
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 7
- 239000011347 resin Substances 0.000 claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 44
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 19
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 31
- 238000001179 sorption measurement Methods 0.000 claims description 22
- -1 metal complex anion Chemical class 0.000 claims description 17
- 239000010970 precious metal Substances 0.000 claims description 8
- 238000007796 conventional method Methods 0.000 claims description 3
- 238000011946 reduction process Methods 0.000 claims 1
- 150000001450 anions Chemical class 0.000 abstract description 16
- 229910052737 gold Inorganic materials 0.000 abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052763 palladium Inorganic materials 0.000 abstract description 5
- 229910052697 platinum Inorganic materials 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 5
- 150000002576 ketones Chemical class 0.000 abstract description 3
- 238000004821 distillation Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- PUAQLLVFLMYYJJ-UHFFFAOYSA-N 2-aminopropiophenone Chemical compound CC(N)C(=O)C1=CC=CC=C1 PUAQLLVFLMYYJJ-UHFFFAOYSA-N 0.000 abstract 4
- 150000003863 ammonium salts Chemical class 0.000 abstract 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 230000000274 adsorptive effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 13
- 239000010931 gold Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 4
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 4
- 229920001429 chelating resin Polymers 0.000 description 4
- 238000010828 elution Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 239000003957 anion exchange resin Substances 0.000 description 2
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- SDKPSXWGRWWLKR-UHFFFAOYSA-M sodium;9,10-dioxoanthracene-1-sulfonate Chemical compound [Na+].O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)[O-] SDKPSXWGRWWLKR-UHFFFAOYSA-M 0.000 description 1
- SNNIPOQLGBPXPS-UHFFFAOYSA-M tetraoctylazanium;chloride Chemical compound [Cl-].CCCCCCCC[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC SNNIPOQLGBPXPS-UHFFFAOYSA-M 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〈産業上の利用分野〉
本発明は金、白金、パラジウム等の貴金属を吸着によっ
て回収する方法に関する。Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for recovering noble metals such as gold, platinum, palladium, etc. by adsorption.
〈従来の技術〉
金、白金、パラジウム等の貴金属の回収は従来から、貴
金属の錯体アニオンをイオン交換樹脂に吸着させて行っ
ている。すなわち、アニオン交換樹脂が充填されたカラ
ムに貴金属のクロロ錯体アニオン溶液を通夜し、この吸
着された樹脂を焼却することで回収している。これはア
ニオン交換樹脂から貴金属の錯体イオンを溶離すること
ができないためである。<Prior Art> Precious metals such as gold, platinum, and palladium have traditionally been recovered by adsorbing complex anions of the precious metals onto ion exchange resins. That is, a noble metal chloro complex anion solution is passed overnight in a column filled with an anion exchange resin, and the adsorbed resin is recovered by incineration. This is because noble metal complex ions cannot be eluted from the anion exchange resin.
〈発明が解決しようとするＲ照点〉
従って、（ＩｆＩｌｌを焼却する従来技術の回収は樹脂
の再利用ができず、単位重量当りの回収費用が高く、樹
脂の焼却に時間を要するため迅速な回収ができない、問
題点がある。<R point to be solved by the invention> Therefore, (Recovery of IfIll by the conventional technology by incineration cannot reuse the resin, the recovery cost per unit weight is high, and it takes time to incinerate the resin, so it is not possible to quickly recover IfIll. There is a problem that it cannot be collected.
本発明は上記事情を考慮してなされ、回収を高効率で行
うことができると共に、吸着用の樹）１８の再利用が可
能な貴金属の回収方法を提供することを目的とする。The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a method for recovering precious metals that can be recovered with high efficiency and that also allows the adsorption tree 18 to be reused.
く問題点を解決するための手段〉
上記目的を達成するため、本発明は四級アンモニウム塩
を担持した樹脂が資金ａ錯体アニオンを効率よく吸着し
、且つ貴金属錯体アニオンを樹脂から溶離することを見
出し、本発明を完成したものである。すなわち本発明は
、四級アンモニウム塩が担持された疎水性吸着ｖＪ４脂
に貴金属錯体アニオンを吸着させた後、前記疎水性吸着
樹脂から責金属錯体アニオンと四級アンモニウム塩とを
溶離し、この溶離液を常法に従って逆抽出あるいは還元
処理を行って貴金属を回収することを特徴とするもので
ある。Means for Solving the Problems In order to achieve the above object, the present invention provides a method that allows a resin supporting a quaternary ammonium salt to efficiently adsorb metal complex anions and elute noble metal complex anions from the resin. The heading completes the invention. That is, in the present invention, after a noble metal complex anion is adsorbed on a hydrophobic adsorption vJ4 resin carrying a quaternary ammonium salt, the culprit metal complex anion and the quaternary ammonium salt are eluted from the hydrophobic adsorption resin. This method is characterized by recovering precious metals by back-extracting or reducing the liquid according to conventional methods.
本発明に用いられる四級アンモニウム塩は、難水溶性の
塩が好ましく、例えばテトラオクチルメチルアンモニウ
ムクロライドが選択される。この四級アンモニウム塩は
疎水性吸着樹脂に担持されて、貴金属錯体アニオンを捕
獲する。疎水性吸着樹脂としては吸着容量の大きな多孔
質樹脂が良好であり、例えば合成吸着剤であるアンバー
ライトＸＡＤ （商品名）が選択される。アンバーライ
トＸ Ａ Ｄ ＋、を巨大網状構造の合成吸着剤であり
、不溶性の球形状をなしている。このアンバーライトＸ
ＡＤは通常のイオン交換樹脂のように交換基をもたず、
貴金属錯体アニオンをそのまま吸着する性質を有してい
る。この内、アンバーライトＸＡＤ−７（商品名）はア
クリルエステルを母体とした吸着樹脂であり、中間的極
性を有し、本発明に特に好適である。前記四級アンモニ
ウム塩をこのような疎水性吸着樹脂に担持させるには、
希釈された状態で使用されろ。希釈剤としては、アルコ
ール類、エーテル類、ケトン類、あるいは石油エーテル
等の有機溶媒が使用される。希釈率は使用する四級アン
モニウム塩あるいは疎水性吸着側ＨＢによって選定され
、例えば四級アンモニウム塩としてテトラオクチルメチ
ルアンモニウムクロライドを使用する場合は濃度が１０
０〜３００ｇ／ｌ、より好ましくは２００ｇ／１前後と
なるように希釈される。このように有機溶媒で希釈され
た四級アンモニウム塩の溶液は疎水性吸着樹脂が充填さ
れたカラムに通液することでｖ！４脂に担持される。The quaternary ammonium salt used in the present invention is preferably a slightly water-soluble salt, and for example, tetraoctylmethylammonium chloride is selected. This quaternary ammonium salt is supported on a hydrophobic adsorption resin and captures the noble metal complex anion. As the hydrophobic adsorption resin, a porous resin with a large adsorption capacity is suitable, and for example, Amberlite XAD (trade name), which is a synthetic adsorption agent, is selected. Amberlite This amber light
AD does not have exchange groups like normal ion exchange resins,
It has the property of adsorbing noble metal complex anions as they are. Among these, Amberlite XAD-7 (trade name) is an adsorption resin based on acrylic ester, has intermediate polarity, and is particularly suitable for the present invention. In order to support the quaternary ammonium salt on such a hydrophobic adsorption resin,
Use in diluted form. As the diluent, alcohols, ethers, ketones, or organic solvents such as petroleum ether are used. The dilution rate is selected depending on the quaternary ammonium salt used or the hydrophobic adsorption side HB. For example, when tetraoctylmethylammonium chloride is used as the quaternary ammonium salt, the concentration is 10.
It is diluted to a concentration of 0 to 300 g/l, more preferably around 200 g/l. The solution of the quaternary ammonium salt diluted with an organic solvent is passed through a column packed with a hydrophobic adsorption resin. 4 Supported by fat.
この場合の通液量は樹脂容量と略同等が野ましく、四級
アンモニウム塩を担持した疎水性吸着樹脂は、みかけ上
、イオン交換樹脂と同様な機能を示す。In this case, the amount of liquid passed is roughly equivalent to the resin capacity, and the hydrophobic adsorption resin supporting the quaternary ammonium salt apparently exhibits the same function as the ion exchange resin.
なお、四級アンモニウム塩としてテトラオクチルアンモ
ニウムクロライドを使用した場合の担持率は０・ １〜
０・ ３ミリモル・ｍｌ’ Ｒｅ５ｉｎである。Furthermore, when tetraoctylammonium chloride is used as the quaternary ammonium salt, the supporting ratio is 0.1 to 1.
0.3 mmol·ml' Re5in.
次に、樹脂に吸着される貴金属は錯体アニオンの形態で
供給されろ。すなわち、貴金属の一般処理工程で得られ
ろ形態と同形態のままで使用することができろ。例えば
、王水で溶解された場合は［Ｍ Ｃ１ｍ］−（Ｍｌ；
ｔＡｕ、Ｐ ｔ、Ｐｄを示す、ｍ。Next, the noble metal adsorbed on the resin should be supplied in the form of a complex anion. In other words, it can be used in the same form as that obtained in the general treatment process for precious metals. For example, when dissolved in aqua regia, [MC1m]-(Ml;
Indicates tAu, Pt, Pd, m.
ｎは整数を示す）に代表されるクロロ錯体アニオンとし
て存在し、又、メッキ用に使用されろシアン液中の金は
アルカリ性、酸性を問わず、（Ａｕ（ＣＮ）Ｊのンアン
錯体アニオンとして存在し、これらをそのまま使用する
ことができる。このような貴金属錯体アニオンの溶液を
前述の四級アンモニウム塩を担持した疎水性吸着樹脂の
カラムに通夜すると、貴金属錯体アニオンと四級アンモ
ニウム塩とがイオン対を形成して樹脂に吸着される。Gold in the cyanide solution used for plating, regardless of whether it is alkaline or acidic, exists as a chloro complex anion represented by (n is an integer). However, these can be used as they are. When a solution of such a noble metal complex anion is passed through a column of hydrophobic adsorption resin carrying the quaternary ammonium salt described above overnight, the noble metal complex anion and the quaternary ammonium salt become ions. They form pairs and are adsorbed to the resin.
この樹脂のアニオン交換容量は青金ｒ４錯体アニオンの
溶液の液性がアルカリ性よりも酸性の方が大きい（例え
ば、酸性の溶液中の金の交換容量は約０．２５ミリモル
／ ｇ −Ｒｅｓｉｎ ）が、溶液中の貴金属が錯体ア
ニオンの形態であれば、アルカリ性、酸性を問わず有効
であることが四級アンモニウム塩を使用する特徴である
。The anion exchange capacity of this resin is larger when the solution of the blue r4 complex anion is acidic than when it is alkaline (for example, the exchange capacity of gold in an acidic solution is about 0.25 mmol/g-Resin). A feature of using a quaternary ammonium salt is that it is effective regardless of whether the solution is alkaline or acidic, as long as the noble metal in the solution is in the form of a complex anion.
次に、ｔ！！４脂に吸着された貴金属錯体アニオンは四
級アンモニウム塩と共に、樹脂から溶離される。Next, t! ! The noble metal complex anion adsorbed on the 4-fat is eluted from the resin together with the quaternary ammonium salt.
溶離は貴金属錯体アニオン溶液を通を夜したカラムに有
機溶媒、例丸ばアルコール類、エーテル類。For elution, a noble metal complex anion solution is passed through the column and an organic solvent, such as alcohols or ethers, is used for elution.
ケ）・ン類を通液することにより容易に行われる。This can be easily done by passing liquid through.
この溶離に必要な有機溶媒は樹脂容量の約５倍で十分で
ある。溶離された成分の内、貴金属の錯体アニオンはこ
れを常法に従って逆抽出あるいは還元処理を行うことに
より、貴金属単体として回収することができる。一方、
四級アンモニウム塩は蒸留することで有機溶媒と分離さ
れる。分離された四級アンモニウム塩（ま再度、疎水性
吸着側１１１＆に担持されて樹脂の再使用に供すること
ができ、又、有機溶媒も樹脂からの四級アンモニウム塩
および貴Ｍ ｇ 錯体アニオンの／ｌＩ離に再使用する
ことができろ。The amount of organic solvent necessary for this elution is sufficient to be about 5 times the resin volume. Among the eluted components, complex anions of noble metals can be recovered as simple noble metals by back extraction or reduction treatment according to conventional methods. on the other hand,
The quaternary ammonium salt is separated from the organic solvent by distillation. The separated quaternary ammonium salt (again, supported on the hydrophobic adsorption side 111) can be used for reuse of the resin, and the organic solvent also removes the quaternary ammonium salt and the noble M g complex anion from the resin. It can be reused for different purposes.
〈作 用〉
貴金属錯体アニオンとイオン対を形成する四級アンモニ
ウム塩は疎水性吸着樹脂に担持される際には、Ｉ（脂と
疎水結合を形成する。従って、四級アンモニウム塩を溶
解する溶媒を通液することによって、四級アンモニウム
塩および四級アンモニウム塩とイオン対を形成して捕獲
された貴金属錯体イオンの双方を樹脂から溶離すること
ができる。<Function> When a quaternary ammonium salt that forms an ion pair with a noble metal complex anion is supported on a hydrophobic adsorption resin, it forms a hydrophobic bond with I (fat). Therefore, a solvent that dissolves the quaternary ammonium salt By passing the liquid through the resin, both the quaternary ammonium salt and the captured noble metal complex ions forming ion pairs with the quaternary ammonium salt can be eluted from the resin.
これにより、疎水性吸着ｍ１１１が再利用に供される。This makes the hydrophobic adsorption m111 available for reuse.
又、溶離された四級アンモニウム塩は一般にアルコール
類、エーテル類、ケトン類等の有ｍ溶媒よりも沸点が高
く、有機溶媒と共に蒸留することで残液として回収する
ことができろ。従って、四級アンモニウム塩を樹脂に担
持させて再利用に供することができる。なお、かかる四
級アンモニウム塩を樹脂に担持させるに際しては、有機
溶媒に希釈されて供されるから、蒸留を完全に行うこと
なく所定濃度で再利用に供することができる。Furthermore, the eluted quaternary ammonium salt generally has a higher boiling point than other solvents such as alcohols, ethers, and ketones, and can be recovered as a residual liquid by distilling it together with an organic solvent. Therefore, the quaternary ammonium salt can be supported on the resin and reused. Note that when such a quaternary ammonium salt is supported on a resin, it is diluted with an organic solvent and therefore can be reused at a predetermined concentration without being completely distilled.
〈実施例〉
以下、本発明を実施例につき、さらに具体的に説明する
。<Examples> Hereinafter, the present invention will be described in more detail with reference to Examples.
実施例１
疎水性吸着樹脂としてアンバーライトＸＡＤ−７を使用
し、これをカラムに１１充填した。一方、四級アンモニ
ウム塩としてテトラオクチルメチルアンモニウムクロラ
イドを使用し、この濃度が２００ｇ／ｌとなるようにメ
チルイソブチルケトンで希釈した。この液を前記カラム
に通夜し、Ｖ！４１１１を再生した。次に、金としての
換算濃度１．３ｇ／ｅのメッキ液３７ｇをカラムに通液
した。通液量２０１までは２ｐｐｍ以下であったが、そ
れ以降はかなり漏出してきた。通液終了後、通液の金を
分析した結果、液中には１６．８ｇの金が残存していた
。４ｔｉ［１に吸着した金酸塩をメチルイソブチルケト
ン５でで溶離した後、通常の方法で還元処理して金を回
収した結果３１ｇであった。Example 1 Amberlite XAD-7 was used as a hydrophobic adsorption resin, and 11 pieces of it were packed into a column. On the other hand, tetraoctylmethylammonium chloride was used as a quaternary ammonium salt and diluted with methyl isobutyl ketone to a concentration of 200 g/l. This solution was passed through the column overnight, and V! 4111 was played. Next, 37 g of a plating solution with a converted gold concentration of 1.3 g/e was passed through the column. The amount of liquid passed was 2 ppm or less up to 201, but after that, a considerable amount of leakage occurred. After the liquid was passed, the gold in the liquid was analyzed, and it was found that 16.8 g of gold remained in the liquid. The gold salt adsorbed on 4ti[1 was eluted with methyl isobutyl ketone 5, and then reduced in a conventional manner to recover 31 g of gold.
実施例２
実施例１と同様な方法でテトラオクチルメチルアンモニ
ウムクロライドを担持した樹Ｍを使用し、金としての換
算濃度０．８０ｇ／Ｉｆ’の王水溶液６５１をカラムに
通液したところ、漏出液中の金の換算濃度は５Ｐｐｍ以
下であり、樹脂から溶離して回収された金は５０ｇであ
った。回収率は９６％であった。Example 2 Using Tree M supporting tetraoctylmethylammonium chloride in the same manner as in Example 1, aqua regia solution 651 with an equivalent gold concentration of 0.80 g/If' was passed through the column. The equivalent concentration of gold in the resin was 5 Ppm or less, and 50 g of gold was eluted from the resin and recovered. The recovery rate was 96%.
実施例３
実施１１Ｍ １と同様にテトラオクチルメチルアンモニ
ウムクロライドを担持した樹脂を使用し、金としての換
算濃度５０ｐｐｍのメッキ剥離液４３０１をカラムに通
液した。メチルイソブチルケトンによって倒詣から溶離
し、金を回収した結果、２０ｇ８得た。回収率は９３％
である。Example 3 A resin supporting tetraoctylmethylammonium chloride was used in the same manner as in Example 11M1, and plating stripping solution 4301 having a concentration of 50 ppm in terms of gold was passed through the column. The gold was recovered by elution from the column with methyl isobutyl ketone, yielding 20g8. Recovery rate is 93%
It is.
なお、以上の実施例１，２，３においては樹脂、テトラ
オクチルメチルアンモニウムクロライドおよびメチルイ
ソブチルケトンをサイクル使用して行ったものである。In Examples 1, 2, and 3 above, the resin, tetraoctylmethylammonium chloride, and methyl isobutyl ketone were used in cycles.
〈発明の効果〉
以上のとおり本発明によると、四級アンモニウム塩を担
持した疎水性吸着樹Ｈ〜で貴金属９６体アニオンを吸着
した後、四級アンモニウム塩と貴金属錯体アニオンとを
溶離して回収するようにしたから貴金属を高収率で回収
することができる。又、吸着に使用されたＰＭ脂および
四級アンモニウム塩を再使用できるから回収が安価にで
きると共に、焼却処理も不要となるから迅速な回収を行
うこと艷ぺ５６・効果２奏１６・<Effects of the Invention> As described above, according to the present invention, after adsorbing noble metal 96 anions with the hydrophobic adsorption tree H~ carrying a quaternary ammonium salt, the quaternary ammonium salt and the noble metal complex anion are eluted and recovered. This allows precious metals to be recovered in high yield. In addition, since the PM fat and quaternary ammonium salt used for adsorption can be reused, they can be recovered at low cost, and there is no need for incineration, so they can be recovered quickly.
Claims (1)
属錯体アニオンを吸着させた後、前記疎水性吸着樹脂か
ら貴金属錯体アニオンと四級アンモニウム塩とを溶離し
、この溶離液を常法に従って逆抽出あるいは還元処理を
行って貴金属を回収することを特徴とする貴金属の回収
方法。After adsorbing the noble metal complex anion onto a hydrophobic adsorption resin carrying a quaternary ammonium salt, the noble metal complex anion and the quaternary ammonium salt are eluted from the hydrophobic adsorption resin, and this eluate is back-extracted using a conventional method. Alternatively, a method for recovering precious metals is characterized by recovering precious metals by performing a reduction process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11541186A JPS62275024A (en) | 1986-05-20 | 1986-05-20 | Method for recovering noble metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11541186A JPS62275024A (en) | 1986-05-20 | 1986-05-20 | Method for recovering noble metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62275024A true JPS62275024A (en) | 1987-11-30 |
| JPH0361607B2 JPH0361607B2 (en) | 1991-09-20 |
Family
ID=14661903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11541186A Granted JPS62275024A (en) | 1986-05-20 | 1986-05-20 | Method for recovering noble metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62275024A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885143A (en) * | 1987-08-06 | 1989-12-05 | Technion Research And Development Foundation Ltd. | Method for the interseparation of platinum group metals |
| JP2014084495A (en) * | 2012-10-23 | 2014-05-12 | Tanaka Kikinzoku Kogyo Kk | Method for separating and collecting noble metal |
-
1986
- 1986-05-20 JP JP11541186A patent/JPS62275024A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885143A (en) * | 1987-08-06 | 1989-12-05 | Technion Research And Development Foundation Ltd. | Method for the interseparation of platinum group metals |
| JP2014084495A (en) * | 2012-10-23 | 2014-05-12 | Tanaka Kikinzoku Kogyo Kk | Method for separating and collecting noble metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0361607B2 (en) | 1991-09-20 |
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