JP5120533B2 - めっき液添加剤のカチオン除去装置、及びめっき液添加剤の処理方法 - Google Patents
めっき液添加剤のカチオン除去装置、及びめっき液添加剤の処理方法 Download PDFInfo
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Description
図1は、本発明の一実施形態に係るめっき液添加剤のカチオン除去装置を示す概略系統図である。
H2O → OH− + H+ ・・・(1)
[1]電気透析装置
電気透析装置2のイオン交換膜及びイオン交換体として以下のものを用いた。
(1)カチオン交換膜12;ネオセプタ(登録商標)CMB(アストム社製)
(2)バイポーラ膜11;ネオセプタ(登録商標)BP−1E(アストム社製)
(3)脱塩室13に充填したカチオン交換樹脂;SK1B(三菱化学社製)
(4)濃縮室14に充填したカチオン交換樹脂;SK1B(三菱化学社製)
(1)脱塩室の室数:1室
(2)ナトリウムイオンの透過できるカチオン交換膜12の総膜面積:1.7dm2
(3)脱塩室:100mLのカチオン交換樹脂を充填
図1及び図2に示す装置において、クエン酸ナトリウム(RCOONa)水溶液の代わりにスルホン酸ナトリウム水溶液(濃度5g/L)を用い、電気透析機2の脱塩室13の入り口側ナトリウムイオン濃度600ppm、印加する電流密度0.71A/dm2、LV(線速度)16m/hの条件で、8Lのスルホン酸ナトリウム水溶液を3時間循環させたときのナトリウムイオン濃度の変化を測定した。
結果を図5に示す。
[1]電気透析装置
比較例1の電気透析機の仕様は以下の通りである。
(1)市販の電気透析機(アストム社製,商品名:アシライザー,実施例1と同じカチオン交換膜とアニオン交換膜を交互に配置して濃縮室、脱塩室、濃縮室のユニットを複数形成したもの)
(2)脱塩室の室数:10室
(3)ナトリウムイオンの透過できるカチオン交換膜12の総膜面積:14.6dm2
(4)脱塩室:イオン交換樹脂を充填せず
上記電気透析機を用いて、実施例1と同様の条件で8Lのスルホン酸ナトリウム水溶液(濃度5g/L)を3時間循環させたときのナトリウムイオン濃度の変化を測定した。
結果を図5にあわせて示す。
3…流路(めっき液添加剤流路)
5…ナトリウムイオン回収機構
7…保護フィルタ
11…バイポーラ膜
11A…カチオン交換膜層
11B…アニオン交換膜層
12…カチオン交換膜
13…脱塩室
14…濃縮室
15…カチオン交換樹脂(カチオン交換体)
16…混合樹脂(アニオン交換樹脂とカチオン交換樹脂との混合樹脂,イオン交換体)
Claims (7)
- 陰極と陽極との間にカチオン交換膜とバイポーラ膜とで区画された脱塩室と濃縮室とを有する電気透析装置と、
前記電気透析装置の脱塩室に連通した有機酸塩又は無機酸塩の水溶液からなるめっき液添加剤流路と、
前記電気透析装置の濃縮室に連通したカチオン回収機構と
を備え、
前記電気透析装置の脱塩室にカチオン交換体が充填されている有機酸塩又は無機酸塩の水溶液からなるめっき液添加剤のカチオン除去装置。 - 陰極と陽極との間にカチオン交換膜とバイポーラ膜とで区画された脱塩室と濃縮室とを有する電気透析装置と、
前記電気透析装置の脱塩室に連通した有機酸塩又は無機酸塩の水溶液からなるめっき液添加剤流路と、
前記電気透析装置の濃縮室に連通したカチオン回収機構と
を備え、
前記電気透析装置の濃縮室にイオン交換体が充填されている有機酸塩又は無機酸塩の水溶液からなるめっき液添加剤のカチオン除去装置。 - 前記めっき液添加剤流路の前記電気透析装置より上流側に保護フィルタを設けたことを特徴とする請求項1または請求項2に記載のめっき液添加剤のカチオン除去装置。
- 前記めっき液添加剤流路の前記電気透析装置より下流側にさらにイオン交換器を設けたことを特徴とする請求項1〜3のいずれかに記載のめっき液添加剤のカチオン除去装置。
- 有機酸塩又は無機酸塩の水溶液からなるめっき液添加剤からカチオンを選択的に除去する方法であって、
陰極と陽極の間にカチオン交換膜とバイポーラ膜とで区画された脱塩室と濃縮室とを有し、該脱塩室にカチオン交換体が充填されている電気透析装置を用い、前記脱塩室に前記めっき液添加剤を流通させることによりカチオンを除去した処理液を得るめっき液添加剤の処理方法。 - 有機酸塩又は無機酸塩の水溶液からなるめっき液添加剤からカチオンを選択的に除去する方法であって、
陰極と陽極の間にカチオン交換膜とバイポーラ膜とで区画された脱塩室と濃縮室とを有し、該濃縮室にイオン交換体が充填されている電気透析装置を用い、前記脱塩室に前記めっき液添加剤を流通させることによりカチオンを除去した処理液を得るめっき液添加剤の処理方法。 - 前記電気透析装置の電圧及び電流を制御することにより前記電気透析装置で処理した処理液のpHを管理して、有機酸とカチオンとの比率を制御することを特徴とする請求項5または請求項6に記載のめっき液添加剤の処理方法。
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JP2007050559A JP5120533B2 (ja) | 2007-02-28 | 2007-02-28 | めっき液添加剤のカチオン除去装置、及びめっき液添加剤の処理方法 |
PCT/JP2008/053474 WO2008105489A1 (ja) | 2007-02-28 | 2008-02-28 | めっき液添加剤のカチオン除去装置、及びめっき液添加剤の処理方法 |
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WO2016033319A1 (en) * | 2014-08-27 | 2016-03-03 | Tangent Company Llc | Electrochemically regenerated water decationization method and apparatus |
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JP5417292B2 (ja) * | 2010-09-29 | 2014-02-12 | 日立Geニュークリア・エナジー株式会社 | 洗濯廃液の処理方法 |
JP6717935B2 (ja) * | 2015-06-11 | 2020-07-08 | ビーエル テクノロジーズ、インコーポレイテッド | バイポーラ電気透析方法及びシステム |
CN106362594A (zh) * | 2016-08-30 | 2017-02-01 | 中国科学院青海盐湖研究所 | 一价离子选择性电渗析装置及氯化锂浓缩液的制备方法 |
EP3875641A1 (de) * | 2020-03-04 | 2021-09-08 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Verfahren zum aufbereiten eines metallsalz-haltigen mediums aus einem ätzprozess der leiterplatten- und/oder substrat-herstellung |
CN113003658B (zh) * | 2021-01-21 | 2022-12-20 | 新疆新鑫矿业股份有限公司阜康冶炼厂 | 一种镍不溶阳极电积液的处理工艺 |
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