JPS62256985A - Method for recovering pt, pd and rh from dinitrodiammine pt filtrate - Google Patents
Method for recovering pt, pd and rh from dinitrodiammine pt filtrateInfo
- Publication number
- JPS62256985A JPS62256985A JP9863386A JP9863386A JPS62256985A JP S62256985 A JPS62256985 A JP S62256985A JP 9863386 A JP9863386 A JP 9863386A JP 9863386 A JP9863386 A JP 9863386A JP S62256985 A JPS62256985 A JP S62256985A
- Authority
- JP
- Japan
- Prior art keywords
- filtrate
- dinitrodiammine
- cathode
- recovering
- electrolytic cell
- 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.)
- Pending
Links
- 239000000706 filtrate Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 21
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 20
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 13
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000033 sodium borohydride Inorganic materials 0.000 description 2
- 239000012279 sodium borohydride Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 150000004696 coordination complex Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ジニトロジアンミンＰｔ濾液やこれが溶けて
いる液からのＰｔ、Ｐｄ、Ｒｈ回収法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for recovering Pt, Pd, and Rh from a dinitrodiammine Pt filtrate or a solution in which it is dissolved.
（従来の技術とその問題点）
従来、ジニトロジアンミンＰｔ濾液を生成した時の濾液
及びこれが溶けている液からＰｔ、Ｐｄ、Ｒｈを回収す
るには、一般にＳＢＨ（ソディウムボロハイドライド）
を添加して還元するが、この場合もＨ２による爆発の危
険がある。(Prior art and its problems) Conventionally, in order to recover Pt, Pd, and Rh from the filtrate produced when dinitrodiammine Pt filtrate and the liquid in which it is dissolved, SBH (sodium borohydride) is generally used.
However, in this case as well, there is a risk of explosion due to H2.
そこで本発明はこれらの問題点を解決し、Ｐｔが５■／
１以下になるまで回収できることは勿論のこと、共存し
ているＰｄ、Ｒｈのアンミン錯体の回収も同時にできる
ジニトロジアンミンＰｔ濾液からのＰｔ、Ｐｄ、Ｒｈの
回収法を提供せんとするものである。Therefore, the present invention solves these problems, and Pt is 5■/
It is an object of the present invention to provide a method for recovering Pt, Pd, and Rh from a dinitrodiammine Pt filtrate, which can not only recover the ammine complexes of Pd and Rh that coexist, but also recover the ammine complexes of Pd and Rh that coexist.
（問題点を解決するための手段）
上記問題点を解決するための本発明のジニトロジアンミ
ンＰｔ濾液からのＰｔ、Ｐｄ、Ｒｈの回収法は、電解槽
中にジクロロジアミンＰｔ濾液を収容し、電解にてＰｔ
、Ｐｄ、Ｒｈを回収することを特徴とするものである。(Means for Solving the Problems) The method for recovering Pt, Pd, and Rh from dinitrodiamine Pt filtrate of the present invention to solve the above problems is to store dichlorodiamine Pt filtrate in an electrolytic cell and electrolyze it. At Pt.
, Pd, and Rh.
（実施例）
本発明によるジニトロジアンミンＰ Ｌ 濾’ｆ（Ｉか
らのＰｔ、Ｐｄ、Ｒｈの回収法の実施例について説明す
る。先ず、末法を実施するための電解装置の概略を第１
図によって説明すると、１は電解槽、２は濾液を攪拌す
るマグネチックスターラ、３．４は電解槽１内に設けら
れた陽極及び陰極で、この陽極３及び陰極４はＰｔ−Ｔ
ｉ網より成り、電解槽１外の電源に連なる整流器５に接
続されている。６は温度計である。(Example) An example of the method for recovering Pt, Pd, and Rh from dinitrodiammine P L filtration (I) according to the present invention will be described.
To explain with a diagram, 1 is an electrolytic cell, 2 is a magnetic stirrer for stirring the filtrate, 3.4 is an anode and a cathode provided in the electrolytic cell 1, and the anode 3 and cathode 4 are Pt-T.
It is connected to a rectifier 5 connected to a power source outside the electrolytic cell 1. 6 is a thermometer.
次に本店の一実施例について説明する。電解槽１内に、
ジニトロジアンミンＰｔ濾液（初濃度Ｐｔ２．３ ｇ
／β）７を１！収容し、陽掻３と陰極４電極寸法巾１２
．５ ｃｍ、高さ５ ｃｍのものにし且つ極間距離を約
４ ｃｍとなして、マグネチフクスターラ２にて回転し
て、ジニトロジアミンＰｔ濾液７を撹拌し乍ら、陰極の
電極電位を各金属錯体の析出電位よりも高いＩＯＶとし
、陰極電流密度約１９Ａ／ｄｎ＋” （初段定時、液温
２５℃）で電解した処、第２図のグラフに示すようにジ
ニトロジアミンＰｔ濾′／＆７中のＰＬ濃度が経時的に
低下し、４時間４５分経過した時点でＰｔ６■／２とな
り、６時間４５分経過した時点ではＰｔが５■／ｌ以下
となって、Ｐｄ、Ｐｔン、ｇ度が著しく低下し、それだ
けジニトロジアンミンＰｔ濾液７からＰｔが効率良く回
収されたことが判る。Next, an embodiment of the main store will be described. Inside the electrolytic cell 1,
Dinitrodiammine Pt filtrate (initial concentration Pt 2.3 g
/β) 7 to 1! Accommodates positive electrode 3 and cathode 4 electrode dimension width 12
．． 5 cm in height and 5 cm in height, and the distance between the electrodes was about 4 cm, and was rotated by a magnetic stirrer 2 to stir the dinitrodiamine Pt filtrate 7 while changing the electrode potential of the cathode at each time. When electrolysis was carried out at an IOV higher than the deposition potential of the metal complex and a cathode current density of approximately 19 A/dn+'' (first stage constant time, liquid temperature 25°C), as shown in the graph of Fig. 2, dinitrodiamine Pt filter '/&7 The PL concentration decreased over time, reaching Pt6/2 after 4 hours and 45 minutes, and Pt was below 5/l after 6 hours and 45 minutes, and Pd, Pt, and It can be seen that Pt was recovered from the dinitrodiammine Pt filtrate 7 with high efficiency.
電解によって析出したＰｔブランクの殆んどは液中に浮
遊しており、陰極４に付着したものは僅かで、指でこす
るとすくに取れた。Most of the Pt blanks deposited by electrolysis were floating in the liquid, and only a small amount adhered to the cathode 4, which could be easily removed by rubbing with fingers.
尚、上記実施例ではＰｔの回収について説明したが、Ｐ
ｄ、Ｒｈが含有するジニトロジアンミンＰｔ濾液の場合
も同様にＰｄ、Ｒｈを電解で回収できることは勿論であ
る。またジニトロジアンミンＰｔ濾液に共存しているＰ
ｄやＲｈのアンミン錯体も同時に電解回収できる。この
ＰｄやＲｈのアンミン錯体の共存イオンは、ジニトロジ
アンミンＰｔ濾液に、ＮＨ，’が５０ｇ／ｊ！以下、ｃ
ｐ−が３００ ｇ ／ Ｅ以下、ＮＯ□が６０ｇ／β以
下入っていて、ＰｄやＲｈとアンミン錯体を構成してい
るものである。In addition, in the above embodiment, recovery of Pt was explained, but Pt recovery was explained.
Of course, in the case of a dinitrodiammine Pt filtrate containing Pd and Rh, Pd and Rh can be similarly recovered by electrolysis. In addition, P coexisting in the dinitrodiammine Pt filtrate
Ammine complexes of d and Rh can also be electrolytically recovered at the same time. The coexisting ions of ammine complexes of Pd and Rh contain 50 g/j of NH,' in the dinitrodiammine Pt filtrate! Below, c
It contains 300 g/E or less of p-, 60 g/β or less of NO□, and forms an ammine complex with Pd and Rh.
（発明の効果）
以上の説明で判るように本発明によれば、電解によって
ジニトロジアンミンＰｔ濾液及びこれが溶けている液か
らＰｔ、Ｐｄ、Ｒｈ等の殆んどを回収できることは勿論
のこと、ジニトロジアンミンＰｔ濾液中にＰｄ、Ｒｈの
アンミン錯体が共存している場合でもこれらを同時に回
収できる。また従来のように爆発の危険性がない。従っ
て、ジニトロジアミンＰｔ濾液からのＰｔ、Ｐｄ、Ｒｈ
等の回収作業を無人化、省力化できるという優れた効果
がある。(Effects of the Invention) As can be seen from the above explanation, according to the present invention, most of Pt, Pd, Rh, etc. can be recovered from the dinitrodiammine Pt filtrate and the liquid in which it is dissolved by electrolysis. Even when ammine complexes of Pd and Rh coexist in the diammine Pt filtrate, they can be recovered at the same time. Also, there is no danger of explosion like in the conventional case. Therefore, Pt, Pd, Rh from dinitrodiamine Pt filtrate
It has the excellent effect of unmanning and labor saving the collection work such as.
第１図は本発明によるジニトロジアンミンＰｔ濾液から
のＰｔ、Ｐｄ、Ｒｈの回収法を実施する電解装置の概略
図、第２図は本発明の回収法によるジニトロジアンミン
Ｐｔ濾液のＰ ｔ ｆＱ度の経時的な変化を示すグラフ
である。
出願人 田中貴金属工業株式会社
第１図FIG. 1 is a schematic diagram of an electrolytic apparatus for carrying out the method of recovering Pt, Pd, and Rh from dinitrodiammine Pt filtrate according to the present invention, and FIG. It is a graph showing changes over time. Applicant Tanaka Kikinzoku Kogyo Co., Ltd. Figure 1
Claims (1)
解にてＰｔ、Ｐｄ、Ｒｈを回収することを特徴とするジ
ニトロジアンミンＰｔ濾液からのＰｔ、Ｐｄ、Ｒｈの回
収法。A method for recovering Pt, Pd, and Rh from a dinitrodiammine Pt filtrate, which comprises storing the dinitrodiammine Pt filtrate in an electrolytic cell and recovering Pt, Pd, and Rh by electrolysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9863386A JPS62256985A (en) | 1986-04-28 | 1986-04-28 | Method for recovering pt, pd and rh from dinitrodiammine pt filtrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9863386A JPS62256985A (en) | 1986-04-28 | 1986-04-28 | Method for recovering pt, pd and rh from dinitrodiammine pt filtrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62256985A true JPS62256985A (en) | 1987-11-09 |
Family
ID=14224908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9863386A Pending JPS62256985A (en) | 1986-04-28 | 1986-04-28 | Method for recovering pt, pd and rh from dinitrodiammine pt filtrate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62256985A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS551994A (en) * | 1978-06-19 | 1980-01-09 | Doubure Haruputsuoige Gmbh | Silver alloy wire rod for producing accessories |
| JPS55145189A (en) * | 1979-04-30 | 1980-11-12 | Kimura Etsuchingu Kenkyusho:Kk | Electrolytic treating apparatus of waste liquid containing silver |
| JPS585996A (en) * | 1981-07-02 | 1983-01-13 | 松下電工株式会社 | Photoelectric automatic flasher with dimming function |
| JPS59179723A (en) * | 1983-03-28 | 1984-10-12 | マ−・インダストリ−ズ・インコ−ポレ−テツド | Gold recovering process and device |
-
1986
- 1986-04-28 JP JP9863386A patent/JPS62256985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS551994A (en) * | 1978-06-19 | 1980-01-09 | Doubure Haruputsuoige Gmbh | Silver alloy wire rod for producing accessories |
| JPS55145189A (en) * | 1979-04-30 | 1980-11-12 | Kimura Etsuchingu Kenkyusho:Kk | Electrolytic treating apparatus of waste liquid containing silver |
| JPS585996A (en) * | 1981-07-02 | 1983-01-13 | 松下電工株式会社 | Photoelectric automatic flasher with dimming function |
| JPS59179723A (en) * | 1983-03-28 | 1984-10-12 | マ−・インダストリ−ズ・インコ−ポレ−テツド | Gold recovering process and device |
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