JPH06306667A - Electrolytic regeneration device for alkali permanganate solution - Google Patents
Electrolytic regeneration device for alkali permanganate solutionInfo
- Publication number
- JPH06306667A JPH06306667A JP5112491A JP11249193A JPH06306667A JP H06306667 A JPH06306667 A JP H06306667A JP 5112491 A JP5112491 A JP 5112491A JP 11249193 A JP11249193 A JP 11249193A JP H06306667 A JPH06306667 A JP H06306667A
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- Japan
- Prior art keywords
- solution
- electrolytic
- anode
- flow
- liquid
- 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.)
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- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- ing And Chemical Polishing (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、デスミア処理槽のアル
カリ過マンガン酸塩溶液中に発生したマンガン酸塩に対
して電気的に酸化して、過マンガン酸塩に再生処理する
ための装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for electrically reoxidizing manganate generated in an alkaline permanganate solution in a desmear treatment tank to regenerate it into permanganate. It is a thing.
【０００２】[0002]
【従来の技術】一般に、プリント基板の製造のための処
理工程で用いられる腐蝕溶液では、酸化剤として過マン
ガン酸塩を含むアルカリ性浴であるため腐蝕操作する
と、過マンガン酸塩が転化してマンガン酸塩の沈殿物が
分解副生物として蓄積され、腐蝕液の能力低下を来すこ
とが知れ、特に、プリント基板として多層配線回路板の
製造ではドリリングによる摩擦熱で、溶融した樹脂（ス
ミア）がホール内の内層回路断面に付着して接続障害を
生じる。そこでこのスミアを除去するためにアルカリ過
マンガン酸塩溶液を用いてスミアを除去するのである
が、プリント基板を処理することで、過マンガン酸塩が
マンガン酸塩へと変化してしまい、さらに反応がすすむ
と二酸化マンガンのスラッジとなってしまう。そこで、
この二酸化マンガンのスラッジを発生させないようマン
ガン酸塩の段階で過マンガン酸塩に再生するように、数
種の方法が見出されてきた。その方法としては再生剤
による方法（米国特許第４５９２８５２号）単筒電極
式電解再生装置（図７に示すように多孔筒対ａ内に中心
に陰極棒ｂとその周囲に陽極棒ｃとを備えたもの）をデ
スミア処理槽に直接入れるインタンク方式や非密閉型
オーバーフロータイプのアウトタンク方式などが知られ
ている。2. Description of the Related Art Generally, a corrosive solution used in a processing step for manufacturing a printed circuit board is an alkaline bath containing permanganate as an oxidant, and therefore, when corrosive operation is performed, permanganate is converted into manganese. It is known that the precipitate of acid salt accumulates as a decomposition by-product, which lowers the ability of the corrosive liquid. In particular, in the production of a multilayer wiring circuit board as a printed circuit board, the molten resin (smear) is generated by the frictional heat caused by drilling. It adheres to the inner layer circuit cross section in the hole and causes a connection failure. Therefore, in order to remove this smear, smear is removed using an alkaline permanganate solution, but by treating the printed circuit board, permanganate is changed to manganate, and further reaction occurs. As it proceeds, it becomes manganese dioxide sludge. Therefore,
Several methods have been found to regenerate the permanganate at the manganate stage so as not to generate this manganese dioxide sludge. As the method, a method using a regenerant (US Pat. No. 4,592,852) is provided with a single-tube electrode type electrolytic regenerator (as shown in FIG. 7, a perforated tube pair a is provided with a cathode rod b at the center and an anode rod c around the cathode rod b. It is known that the in-tank system that puts directly into the desmear processing tank and the non-sealed overflow-type out tank system.
【０００３】[0003]
【発明が解決しようとする課題】ところが、従来の再生
剤による方法では同時にスラッジの発生も認められ、
また単筒電極式電解再生装置では電流に対する電解再
生効率が１０〜１５％と低いし、インタンク方式では液
の対流が自然対流となるため電解再生電極の回りではマ
ンガン酸塩から過マンガン酸塩に再生されていくが、電
極から遠い所は再生されにくいため液に濃度差が生じて
しまう欠点があるし、また、非密閉型オーバーフロータ
イプのアウトタンク方式では液があふれ出てしまうこ
とがあり、また、電解再生槽に流れる流量が少ないため
効率も悪いなど問題があった。本発明は、これら従来の
諸欠点を容易に排除しようとするもので、マンガン酸塩
から過マンガン酸塩への電解再生効率を著しく向上さ
せ、かつ取扱いもすこぶる容易である電解再生装置を提
供することを目的とするものである。However, in the conventional method using the regenerant, the generation of sludge is recognized at the same time,
Further, in the single-tube electrode type electrolytic regenerator, the electrolytic regenerating efficiency with respect to the current is as low as 10 to 15%, and in the in-tank system, the convection of the liquid is natural convection. However, there is a drawback that concentration difference occurs in the liquid because it is difficult to regenerate in the place far from the electrode, and the liquid may overflow in the non-sealed overflow type out tank system. In addition, there is a problem that the efficiency is poor because the flow rate of the electrolytic regeneration tank is small. The present invention intends to easily eliminate these conventional drawbacks, and provides an electrolytic regenerator that significantly improves the electrolytic regeneration efficiency from manganate to permanganate and is extremely easy to handle. That is the purpose.
【０００４】[0004]
【課題を解決するための手段】本発明は、アルカリ過マ
ンガン酸塩溶液の流出入口を有する密閉タンク本体内に
棒状陰極と陽極とからなる電極を溶液浸漬状態下に配備
した電解再生装置をポンプおよび開閉弁のある液流入経
路と液流出経路との循環経路でデスミア処理槽に連結
し、該液流入経路にストレーナーを配備したことを特徴
とするアルカリ過マンガン酸塩溶液の電解再生装置であ
る。DISCLOSURE OF THE INVENTION The present invention is a pump for an electrolytic regenerator in which an electrode composed of a rod-shaped cathode and an anode is arranged in a solution-immersed state in a closed tank body having an outflow / inflow port for an alkaline permanganate solution. An electrolytic regenerator for an alkaline permanganate solution, characterized in that it is connected to a desmear treatment tank through a circulation path of a liquid inflow path and a liquid outflow path having an on-off valve, and a strainer is provided in the liquid inflow path. .
【０００５】[0005]
【作用】アルカリ過マンガン酸塩溶液中において、電気
酸化によって発生したマンガン酸塩を含む溶液を、陰極
と陽極とのある密閉タンク本体にポンプで強制循環させ
て、両極を浸漬状態下で電流を流す。即ち、液漏れがな
く、絶えず濃度の高いマンガン酸塩の含まれる液を電解
再生電極に多量に接触させることが出来るので再生効率
を上げることとなるし、液が強制循環されるので流量を
調節しなくてもよく、バルブ調整を頻繁に行う必要がな
く、取扱い容易であって、かつ電解再生タンクの中にス
ラッジが溜りにくいし、容易に排除できて性能を大巾に
高められる。[Operation] In an alkaline permanganate solution, a solution containing manganate generated by electro-oxidation is forcibly circulated by a pump in a closed tank body having a cathode and an anode, and current is applied while both electrodes are immersed. Shed. In other words, there is no liquid leakage, and a large amount of liquid containing manganate with a high concentration can be brought into contact with the electrolytic regeneration electrode in a large amount, which improves regeneration efficiency. It does not need to be performed, does not require frequent valve adjustments, is easy to handle, and sludge does not easily accumulate in the electrolytic regeneration tank, and can be easily removed to greatly improve performance.
【０００６】[0006]
【実施例】本発明の実施例を図１乃至図５の例で説明す
ると、アルカリ過マンガン酸塩溶液の流出入口１２，１
３を有する密閉タンク本体１内に棒状陰極２と陽極３と
からなる電極を溶液浸漬状態下に配備した電解再生装置
であって、前記棒状陰極１の周囲に網状陽極３を筒形に
対設すると共に、前記密閉タンク本体１をポンプ４及び
開閉弁１４，１５のある液流入経路５と開閉弁１６のあ
る液流出経路６との循環経路でデスミア処理槽７に連結
し、該液流入経路５にストレーナー８を配備してアルカ
リ過マンガン酸塩溶液における電解再生装置としてあ
る。EXAMPLE An example of the present invention will be described with reference to the examples of FIGS. 1 to 5. Inflow ports 12 and 1 of alkaline permanganate solution are described.
1. An electrolytic regenerator in which an electrode composed of a rod-shaped cathode 2 and an anode 3 is provided in a closed tank main body 1 having 3 in a solution-immersed state, and a reticulated anode 3 is provided in a cylindrical shape around the rod-shaped cathode 1. In addition, the closed tank body 1 is connected to the desmear treatment tank 7 through a circulation path of a liquid inflow path 5 having the pump 4 and the on-off valves 14 and 15 and a liquid outflow path 6 having the on-off valve 16, and the liquid inflow path 5 is equipped with a strainer 8 as an electrolytic regenerator for alkaline permanganate solution.
【０００７】前記タンク本体１としては、上部に着脱可
能の蓋体９を持った密閉タンクであって、底部にスラッ
ジ排出用のドレーン口１０を備え、ドレーンバルブ１１
のある配管に接続してある。The tank body 1 is a closed tank having a detachable lid 9 at the top, and a drain port 10 for discharging sludge at the bottom, and a drain valve 11
It is connected to a pipe with.
【０００８】前記電解再生用の密閉タンク本体１は、脚
体２０で設置できるようにし、前記陰極２及び陽極３の
接続ターミナル２２，２３を蓋体９に突設し、該ターミ
ナル２２，２３を接続コードで整流器２１に接続して電
流を流すようにしてある。The closed tank body 1 for electrolytic regeneration is installed on the leg 20, and the connection terminals 22 and 23 for the cathode 2 and the anode 3 are provided on the lid 9 so as to project therefrom. A connection cord is connected to the rectifier 21 so that an electric current can flow.
【０００９】図６の例では、前記密閉タンク本体１をデ
スミア処理槽７外に設置したアウトタンク方式としたも
ので、該デスミア処理槽７にポンプ４の吸込口を設け
て、吐出側を開閉弁１５を介して密閉タンク本体１の流
入口１２に連結し、流出口１３に接続した液流出経路６
をデスミア処理槽７に開口した循環経路を構成し、ポン
プ４で多量の液の強制循環ができるようにして電解再生
を効率よく行えるようにしてある。In the example of FIG. 6, the closed tank body 1 is of an out-tank type installed outside the desmear treatment tank 7, and the desmear treatment tank 7 is provided with a suction port of a pump 4 to open and close the discharge side. The liquid outflow path 6 connected to the inflow port 12 of the closed tank body 1 via the valve 15 and connected to the outflow port 13
A circulation path opened to the desmear treatment tank 7 is configured so that a large amount of liquid can be forcibly circulated by the pump 4 so that electrolytic regeneration can be efficiently performed.
【００１０】実施例では、アルカリ過マンガン酸塩溶液
中に発生したマンガン酸塩に対して使用するが、発生し
たマンガン酸塩を電気的に酸化し、過マンガン酸塩に再
生するのに、電極の材質は電気の通りやすいものとする
ことが配慮され、電極の構造は網状体を筒形にした陽極
３の真ん中に陰極２を通すようにし、陰極２と陽極３の
距離を近づけるようにするのがよい。なお、陽極３は、
網状体を筒形とした単筒形に限らずハニカム形または筒
形を並列接続したものでもよい。In the embodiment, the manganate generated in the alkaline permanganate solution is used. However, the manganate generated is electrically oxidized and regenerated into permanganate by using an electrode. It is considered that the material of is easy for electricity to pass through, and the structure of the electrode is such that the cathode 2 is passed through the center of the anode 3 having a cylindrical net-like body, and the distance between the cathode 2 and the anode 3 is shortened. Is good. The anode 3 is
The net-like body is not limited to a single tubular shape, but may be a honeycomb shape or a tubular shape connected in parallel.
【００１１】[0011]
【発明の効果】本発明は、アルカリ過マンガン酸塩溶液
の流出入口を有する密閉タンク本体内に棒状陰極と陽極
とからなる電極を溶液浸漬状態下に配備した電解再生装
置をポンプおよび開閉弁のある液流入経路と液流出経路
との循環経路でデスミア処理槽に連結し、該液流入経路
にストレーナーを配備したことにより、電解再生用の密
閉タンク本体内では、絶えず濃度の高いマンガン酸塩の
含まれる液を電解再生電極に多量に接触させることが出
来るので、再生効率を上げることとなるし、液が強制循
環されるので流量を調節しなくてもよく、バルブ調整を
頻繁に行う必要がなく、取扱い容易であって、かつ電解
再生タンクの中にスラッジが溜りにくいし、容易に排除
できて性能を大巾に高められるほか、液漏れの心配がな
く、安全に取扱え、作業性を著しく向上でき、二酸化マ
ンガンのスラッジを低減し、満足すべき性能をした処理
ができると共に、デスミア処理の連続的処理が容易にで
きるので、その生産性を大巾に向上できるし、低コスト
で非常に有利な再生装置とすることができる。Industrial Applicability According to the present invention, an electrolytic regenerator in which an electrode composed of a rod-shaped cathode and an anode is arranged in a solution-immersed state in a closed tank main body having an outflow / inflow port for an alkaline permanganate solution is used as a pump and an on-off valve. By connecting to a desmear treatment tank through a circulation route of a liquid inflow route and a liquid outflow route, and disposing a strainer in the liquid inflow route, in the closed tank main body for electrolytic regeneration, there is a constantly high concentration of manganate. Since a large amount of the contained liquid can be brought into contact with the electrolytic regeneration electrode, the regeneration efficiency is improved, and since the liquid is forcedly circulated, it is not necessary to adjust the flow rate, and frequent valve adjustment is required. It is easy to handle, and sludge does not easily accumulate in the electrolytic regeneration tank, and it can be easily removed, greatly improving performance, and there is no risk of liquid leakage, and it can be handled safely. Workability can be significantly improved, sludge of manganese dioxide can be reduced, treatment with satisfactory performance can be performed, and continuous desmear treatment can be easily performed, so that the productivity can be greatly improved and low. It is possible to make the reproducing apparatus very advantageous in terms of cost.
【図１】本発明の実施例の系統説明図である。FIG. 1 is a system explanatory diagram of an embodiment of the present invention.
【図２】図１の例の電解槽の一部切断側面図である。FIG. 2 is a partially cut side view of the electrolytic cell of the example of FIG.
【図３】図２のＡ−Ａ線における平面図である。FIG. 3 is a plan view taken along the line AA of FIG.
【図４】図２のＢ−Ｂ線における切断平面図である。4 is a sectional plan view taken along the line BB in FIG.
【図５】図３のＣ−Ｃ線における拡大切断側面図であ
る。5 is an enlarged cutaway side view taken along the line CC of FIG.
【図６】本発明の他の実施例の系統説明図である。FIG. 6 is a system diagram of another embodiment of the present invention.
【図７】従来例の単槽式電解再生装置の一部を切欠した
斜視図である。FIG. 7 is a perspective view in which a part of a conventional single-cell electrolytic regenerator is cut away.
１ タンク本体 ２ 陰極 ３ 陽極 ４ ポンプ ５ 液流入経路 ６ 液流出経路 ７ デスミア処理槽 ８ ストレーナー ９ 蓋体 １０ ドレーン １１ ドレーンバルブ １２ 流入口 １３ 流出口 １４ 開閉弁 １５ 開閉弁 １６ 開閉弁 1 Tank Main Body 2 Cathode 3 Anode 4 Pump 5 Liquid Inflow Path 6 Liquid Outflow Path 7 Desmear Treatment Tank 8 Strainer 9 Lid 10 Drain 11 Drain Valve 12 Inlet 13 Outlet 14 Open / close valve 15 Open / close valve 16 Open / close valve
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０５Ｋ 3/46 Ｚ 6921−4Ｅ Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location H05K 3/46 Z 6921-4E
Claims (3)
を有する密閉タンク本体内に棒状陰極と陽極とからなる
電極を溶液浸漬状態下に配備した電解再生装置をポンプ
および開閉弁のある液流入経路と液流出経路との循環経
路でデスミア処理槽に連結し、該液流入経路にストレー
ナーを配備したことを特徴とするアルカリ過マンガン酸
塩溶液の電解再生装置。1. An electrolytic regenerator in which an electrode composed of a rod-shaped cathode and an anode is disposed in a solution-immersed state in a closed tank body having an outflow / inflow port for an alkaline permanganate solution, and a liquid inflow path having a pump and an on-off valve. An electrolytic regenerator for alkaline permanganate solution, characterized in that it is connected to a desmear treatment tank through a circulation path of a liquid and a liquid outflow path, and a strainer is provided in the liquid inflow path.
体を持った密閉タンクであって、底部にスラッジ排出用
のドレーン口を備えた請求項１記載の電解再生装置。2. The electrolytic regenerator according to claim 1, wherein the tank body is a closed tank having a detachable lid on an upper portion thereof, and a drain port for sludge discharge is provided on a bottom portion.
形，ハニカム形または筒形を並列接続したものであっ
て、前記棒状陰極の周囲に対設されている請求項１また
は２記載の電解再生装置。3. The anode according to claim 1 or 2, wherein the anode is a single tubular shape in which a net-like body is tubular, a honeycomb shape or a tubular shape is connected in parallel, and is arranged around the rod-shaped cathode. The electrolytic regenerator described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5112491A JPH06306667A (en) | 1993-04-16 | 1993-04-16 | Electrolytic regeneration device for alkali permanganate solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5112491A JPH06306667A (en) | 1993-04-16 | 1993-04-16 | Electrolytic regeneration device for alkali permanganate solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06306667A true JPH06306667A (en) | 1994-11-01 |
Family
ID=14587980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5112491A Pending JPH06306667A (en) | 1993-04-16 | 1993-04-16 | Electrolytic regeneration device for alkali permanganate solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06306667A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120298505A1 (en) * | 2011-05-24 | 2012-11-29 | C. Uyemura & Co., Ltd. | Electrolytic regeneration unit and electrolytic regeneration apparatus using same |
| CN109701315A (en) * | 2019-01-22 | 2019-05-03 | 昆山广谦电子有限公司 | PCB de-smear process potassium permanganate reducing/regenerating device |
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|---|---|---|---|---|
| JPH01127700A (en) * | 1987-11-11 | 1989-05-19 | Shimano Ind Co Ltd | Device for regenerating plating liquid of plating cell |
| JPH02267288A (en) * | 1989-04-07 | 1990-11-01 | Fuji Electric Co Ltd | Etching liquid regenerator |
| JPH02301582A (en) * | 1989-05-05 | 1990-12-13 | Morton Internatl Inc | Method and apparatus for regeneration of permanganate salt bath |
| JPH04362183A (en) * | 1991-06-07 | 1992-12-15 | Nippon Paint Co Ltd | Method for regenerating aluminum surface cleaning bath |
-
1993
- 1993-04-16 JP JP5112491A patent/JPH06306667A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127700A (en) * | 1987-11-11 | 1989-05-19 | Shimano Ind Co Ltd | Device for regenerating plating liquid of plating cell |
| JPH02267288A (en) * | 1989-04-07 | 1990-11-01 | Fuji Electric Co Ltd | Etching liquid regenerator |
| JPH02301582A (en) * | 1989-05-05 | 1990-12-13 | Morton Internatl Inc | Method and apparatus for regeneration of permanganate salt bath |
| JPH04362183A (en) * | 1991-06-07 | 1992-12-15 | Nippon Paint Co Ltd | Method for regenerating aluminum surface cleaning bath |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120298505A1 (en) * | 2011-05-24 | 2012-11-29 | C. Uyemura & Co., Ltd. | Electrolytic regeneration unit and electrolytic regeneration apparatus using same |
| JP2012244103A (en) * | 2011-05-24 | 2012-12-10 | C Uyemura & Co Ltd | Electrolytic regeneration processing unit and electrolytic regeneration processing apparatus equipped with the unit |
| US8877020B2 (en) * | 2011-05-24 | 2014-11-04 | C. Uyemura & Co., Ltd. | Electrolytic regeneration unit and electrolytic regeneration apparatus using same |
| TWI464304B (en) * | 2011-05-24 | 2014-12-11 | Uyemura C & Co Ltd | An electrolytic regeneration processing unit, and an electrolytic regeneration processing device having the same |
| KR101472425B1 (en) * | 2011-05-24 | 2014-12-12 | 우에무라 고교 가부시키가이샤 | Electrolytic recycling unit and electrolytic recycling device with the same |
| CN109701315A (en) * | 2019-01-22 | 2019-05-03 | 昆山广谦电子有限公司 | PCB de-smear process potassium permanganate reducing/regenerating device |
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