JP2010248609A - Lead electrolytic method (6) - Google Patents

Lead electrolytic method (6) Download PDF

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JP2010248609A
JP2010248609A JP2009206902A JP2009206902A JP2010248609A JP 2010248609 A JP2010248609 A JP 2010248609A JP 2009206902 A JP2009206902 A JP 2009206902A JP 2009206902 A JP2009206902 A JP 2009206902A JP 2010248609 A JP2010248609 A JP 2010248609A
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lead
electrolytic
recovering
smooth
electrolytic method
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JP4979752B2 (en
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Hidetoshi Sasaoka
英俊 笹岡
Yasukatsu Sasaki
康勝 佐々木
Atsushi Maeda
厚 前田
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JX Nippon Mining and Metals Corp
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JX Nippon Mining and Metals Corp
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Priority to CN2010102315027A priority patent/CN102011141A/en
Priority to KR1020100074810A priority patent/KR20110027556A/en
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    • 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

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  • Electrolytic Production Of Metals (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lead electrolytic method capable of recovering smooth electrodeposition lead without needing install of a fluorine removing device in electrolytic refining of anodically casted lead in a method for recovering lead from fumed dust a melt furnace of a recycled raw material such as non-iron refinement, a substrate and an electronic component and a melt treatment furnace of an industrial waste. <P>SOLUTION: In the lead electrolytic method, smooth electrodeposition lead is recovered by adding Noigen BN-1390 or Noigen BN-2560 to an electrolyte comprising lead and sulfamic acid in a concentration of 1 to 700 mg/L. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、非鉄製錬、基盤や電子部品などリサイクル原料の溶融炉、及び産業廃棄物を溶融処理する乾式炉より発生する乾式煙灰中に含まれているPbを回収する方法に関する。 The present invention relates to a method for recovering Pb contained in non-ferrous smelting, melting furnaces for recycled materials such as bases and electronic components, and dry smoke ash generated from a dry furnace for melting industrial waste.

非鉄製錬の乾式煙灰中に含まれているPbを回収するため、煙灰を硫酸浸出し、硫酸鉛にした後、電気炉で溶融還元を行う。溶融還元により分離されたメタルをソーダ処理し、その後、メタルをアノード鋳造した後、珪フッ素酸浴中にて電解精製するBetts法を用いることでPbを回収している。 In order to recover Pb contained in non-ferrous smelting dry smoke ash, the smoke ash is leached with sulfuric acid to lead sulfate and then smelted and reduced in an electric furnace. Pb is recovered by using the Betts method in which the metal separated by smelting is soda-treated, and then the metal is anode cast, followed by electrolytic purification in a silicofluoric acid bath.

Betts法において、例えば特開昭５０−１１５１２０ 高純度鉛の電解精製方法（特許文献１）に開示されているが、電解浴が珪フッ素酸であることから、排水にフッ素除去設備が必要である。
特開昭５０−１１５１２０ 高純度鉛の電解精製方法 The Betts method is disclosed in, for example, Japanese Patent Application Laid-Open No. 50-115120, a high purity lead electrolytic purification method (Patent Document 1). However, since the electrolytic bath is silicofluoric acid, a fluorine removal facility is required for the waste water. .
Method for electrolytic purification of high purity lead

従来の技術に対して、フッ素除去設備を設置する必要なく、平滑な電着鉛を回収することができる鉛の電解方法を提供することを目的とする。本発明では、スルファミン酸浴で電解精製することで、板状の電着鉛として回収することができる。 It is an object of the present invention to provide a lead electrolysis method capable of recovering smooth electrodeposited lead without the need for installing a fluorine removal facility with respect to the prior art. In this invention, it can collect | recover as plate-shaped electrodeposited lead by carrying out electrolytic purification in a sulfamic acid bath.

本発明者等は、上記の課題を解決するため以下の発明を成した。
（１）電解液中にノイゲンBN-1390及び又はノイゲンBN-2560を１〜７００mg/Lになるように添加することで平滑な電着鉛を回収する鉛の電解方法。
（２）上記（１）において、電流密度を１００A/m２以下にすることにより平滑な電着鉛を回収する鉛の電解方法。 The present inventors made the following invention in order to solve the above-mentioned problems.
(1) A lead electrolysis method for recovering smooth electrodeposited lead by adding Neugen BN-1390 and / or Neugen BN-2560 to 1 to 700 mg / L in the electrolytic solution.
(2) The lead electrolysis method for recovering smooth electrodeposited lead by setting the current density to 100 A / m 2 or less in (1) above.

本発明によれば、
（１）鉛の電解精製において、適切な添加剤を投入することで、電着面が、平滑な電着鉛が容易に得られる方法を見出した。 According to the present invention,
(1) In the electrolytic refining of lead, a method has been found in which an electrodeposited lead having a smooth electrodeposition surface can be easily obtained by introducing an appropriate additive.

以下に本発明をさらに詳細に説明する。
原料は、本発明の鉛含有物は、鉛 70〜99mass％、錫 0.04mass％以下、ビスマス0〜30mass％含有する。
例えば、上記鉛含有物を、アノード鋳造をし、そのアノードを用いて電解精製を行う。アノードのサイズとしては、カソードのサイズに比べ小さくすることで、エッジ効果を防ぐことができ、平滑で良好な電着鉛を回収することができる。
更に、スルファミン酸を２０から１００ｇ/Ｌ添加するとより平滑な電着鉛を得ることが出来る。 The present invention is described in further detail below.
The raw material contains 70 to 99 mass% lead, 0.04 mass% or less tin, and 0 to 30 mass% bismuth in the lead-containing material of the present invention.
For example, the lead-containing material is subjected to anode casting, and electrolytic purification is performed using the anode. By making the anode size smaller than the cathode size, the edge effect can be prevented, and smooth and good electrodeposited lead can be recovered.
Furthermore, smoother electrodeposited lead can be obtained by adding 20 to 100 g / L of sulfamic acid.

また平滑剤としては、ノイゲンBN-1390及び又はノイゲンBN-2560を1〜700mg/Lで電流密度100A/m2以下、好ましくは、50から100A/m2にすることで、平滑で良好な電着鉛を図１に示すように回収することができる。 Further, as a smoothing agent, Neugen BN-1390 and / or Neugen BN-2560 at 1 to 700 mg / L and a current density of 100 A / m 2 or less, preferably 50 to 100 A / m 2 , smooth and good electric current can be obtained. The lead can be recovered as shown in FIG.

（実施例１） 平滑な電着鉛を回収する方法
電解液の組成として、鉛濃度：80g/L、スルファミン酸濃度：20g/Lに調整した溶液に平滑剤としてノイゲンBN-1390を10mg/Lを添加する。
高Bi品位の鉛アノードと鉛の種板または、ステンレス板をカソードとして、交互に電槽に装入する。
カソードの大きさは、アノードに対して、20〜30mm程度大きくした方が、エッジ部への電流集中を緩和することができ、最適である。
電極装入後、電槽内に電解液を補充し、電解液の電槽内滞留時間が1時間程度になるように給液することで、電槽内の濃度分布を均等にする。
電解液の液温を、20〜30℃に調整後、電流密度100A/m2で通電することで、平滑な電着鉛を回収することができる。 Example 1 Method for Recovering Smooth Electrodeposited Lead As a composition of the electrolytic solution, 10 mg / L of Neugen BN-1390 was used as a smoothing agent in a solution adjusted to lead concentration: 80 g / L and sulfamic acid concentration: 20 g / L. Add.
The high-Bi grade lead anode and lead seed plate or stainless steel plate is used as the cathode, and the battery is inserted alternately.
It is optimal that the size of the cathode be about 20 to 30 mm larger than the anode because the current concentration on the edge portion can be reduced.
After the electrode is charged, the electrolytic solution is replenished in the battery case, and the concentration distribution in the battery case is made uniform by supplying the electrolyte solution so that the residence time of the electrolytic solution in the battery case is about 1 hour.
After adjusting the liquid temperature of the electrolytic solution to 20 to 30 ° C., smooth electrodeposited lead can be recovered by applying current at a current density of 100 A / m 2 .

（実施例２） 平滑な電着鉛を回収する方法
電解液の組成として、鉛濃度：80g/L、スルファミン酸濃度：20g/Lに調整した溶液に平滑剤としてノイゲンBN-1390を400〜700mg/Lを添加する。
高Bi品位の鉛アノードと鉛の種板または、ステンレス板をカソードとして、交互に電槽に装入する。
カソードの大きさは、アノードに対して、20〜30mm程度大きくした方が、エッジ部への電流集中を緩和することができ、最適である。
電極装入後、電槽内に電解液を補充し、電解液の電槽内滞留時間が1時間程度になるように給液することで、電槽内の濃度分布を均等にする。
電解液の液温を、20〜30℃に調整後、電流密度100A/m2で通電することで、平滑な電着鉛を回収することができる。 (Example 2) Method of recovering smooth electrodeposited lead As a composition of the electrolytic solution, 400 to 700 mg of Neugen BN-1390 as a smoothing agent in a solution adjusted to lead concentration: 80 g / L and sulfamic acid concentration: 20 g / L Add / L.
The high-Bi grade lead anode and lead seed plate or stainless steel plate is used as the cathode, and the battery is inserted alternately.
It is optimal that the size of the cathode be about 20 to 30 mm larger than the anode because the current concentration on the edge portion can be reduced.
After the electrode is charged, the electrolytic solution is replenished in the battery case, and the concentration distribution in the battery case is made uniform by supplying the electrolyte solution so that the residence time of the electrolytic solution in the battery case is about 1 hour.
After adjusting the liquid temperature of the electrolytic solution to 20 to 30 ° C., smooth electrodeposited lead can be recovered by applying current at a current density of 100 A / m 2 .

本発明における一態様である添加剤と電着状態の関係Relationship between additive and electrodeposition state which is one embodiment of the present invention 本発明における実施例２における電着状態Electrodeposition state in Example 2 of the present invention

Claims (2)

電解液中にノイゲンBN-1390及び又はノイゲンBN-2560を１〜７００mg/Lになるように添加することで平滑な電着鉛を回収することを特徴とする鉛の電解方法。 A method for electrolyzing lead comprising recovering smooth electrodeposited lead by adding Neugen BN-1390 and / or Neugen BN-2560 in an electrolytic solution so as to be 1 to 700 mg / L. 請求項1において、電流密度を１００A/m2以下にすることにより平滑な電着鉛を回収することを特徴とする鉛の電解方法。 2. The lead electrolysis method according to claim 1, wherein smooth electrodeposited lead is recovered by setting the current density to 100 A / m 2 or less.
JP2009206902A 2009-03-23 2009-09-08 Electrolysis method of lead (6) Active JP4979752B2 (en)

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JP2009206902A JP4979752B2 (en) 2009-03-23 2009-09-08 Electrolysis method of lead (6)
CN2010102315027A CN102011141A (en) 2009-03-23 2010-07-15 Lead electrolytic method
KR1020100074810A KR20110027556A (en) 2009-09-08 2010-08-03 Method for electrolyzing lead
KR1020130061629A KR20130069698A (en) 2009-09-08 2013-05-30 Method for electrolyzing lead

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010248608A (en) * 2009-03-23 2010-11-04 Jx Nippon Mining & Metals Corp Lead electrolytic method (1)

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* Cited by examiner, † Cited by third party
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JP6453743B2 (en) * 2014-12-03 2019-01-16 Ｊｘ金属株式会社 Method for electrolytic purification of lead using sulfamic acid bath

Citations (5)

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JPH0428893A (en) * 1990-05-24 1992-01-31 Ishihara Chem Co Ltd Tin, lead of tin-lead alloy plating bath
JPH0483894A (en) * 1990-07-27 1992-03-17 Ishihara Chem Co Ltd Tin, lead or tin-lead alloy plating bath
JPH0913189A (en) * 1995-05-15 1997-01-14 Elf Atochem North America Inc Electrowinning of lead
JP2000034593A (en) * 1998-07-14 2000-02-02 Daiwa Kasei Kenkyusho:Kk Aqueous solution for reduction precipitation of metal
JP2010248608A (en) * 2009-03-23 2010-11-04 Jx Nippon Mining & Metals Corp Lead electrolytic method (1)

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH0428893A (en) * 1990-05-24 1992-01-31 Ishihara Chem Co Ltd Tin, lead of tin-lead alloy plating bath
JPH0483894A (en) * 1990-07-27 1992-03-17 Ishihara Chem Co Ltd Tin, lead or tin-lead alloy plating bath
JPH0913189A (en) * 1995-05-15 1997-01-14 Elf Atochem North America Inc Electrowinning of lead
JP2000034593A (en) * 1998-07-14 2000-02-02 Daiwa Kasei Kenkyusho:Kk Aqueous solution for reduction precipitation of metal
JP2010248608A (en) * 2009-03-23 2010-11-04 Jx Nippon Mining & Metals Corp Lead electrolytic method (1)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010248608A (en) * 2009-03-23 2010-11-04 Jx Nippon Mining & Metals Corp Lead electrolytic method (1)

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