JP2596648B2 - Cathode plate for electrolytic production of zinc - Google Patents
Cathode plate for electrolytic production of zincInfo
- Publication number
- JP2596648B2 JP2596648B2 JP3090397A JP9039791A JP2596648B2 JP 2596648 B2 JP2596648 B2 JP 2596648B2 JP 3090397 A JP3090397 A JP 3090397A JP 9039791 A JP9039791 A JP 9039791A JP 2596648 B2 JP2596648 B2 JP 2596648B2
- Authority
- JP
- Japan
- Prior art keywords
- cathode plate
- polyolefin
- plate
- strip
- insulating strip
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Prevention Of Electric Corrosion (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルミニウムからなる
極板および極板の少なくとも１つの縁上に、これを取巻
くように融着された絶縁ストリップを有する、亜鉛の電
解製造用陰極板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode plate for the electrolytic production of zinc, comprising a plate of aluminum and at least one edge of the plate with an insulating strip fused therearound.
【０００２】[0002]
【従来の技術】現在公知の、亜鉛の電解製造用陰極板で
は、縁に絶縁ストリップが配置されている。この絶縁ス
トリップは、陰極面上に析出した亜鉛が、陽極板ないし
は電解槽の方向に洗われ、これによって短絡を形成する
のを阻止するために必要である。これらの絶縁ストリッ
プは、陰極板の縁に締付けられるかまたは圧着されてい
る。ねじ締めされた絶縁ストリップを用いる別法も公知
である。この絶縁ストリップ自体は、プラスチック、ゴ
ムまたは木材からなる。最初に挙げた種類の陰極板は、
西ドイツ国特許出願公開（Ａ）第３２１９３００号明細
書から公知である。2. Description of the Related Art At present, a cathode plate for electrolytic production of zinc has an insulating strip disposed at an edge. This insulating strip is necessary to prevent the zinc deposited on the cathode surface from being washed in the direction of the anode plate or the electrolytic cell, thereby forming a short circuit. These insulating strips are clamped or crimped to the edge of the cathode plate. Alternatives using screwed insulating strips are also known. The insulating strip itself is made of plastic, rubber or wood. The first type of cathode plate,
It is known from German Offenlegungsschrift (A) 32 19 300.
【０００３】陰極板は使用中、電解液として使用される
硫酸で含浸されているので、アルミニウムが腐食するこ
とになる。この腐食は、望ましくないことに絶縁ストリ
ップの下で起きる。これは、酸が陰極板と絶縁ストリッ
プとの間へ侵入し、ここで極めて迅速にアルミニウムの
腐食を惹起するためである。従って、陰極板の早期脱落
が起きる。それというのも縁部が腐食し、ストリップは
極板における支えを失ない、それと共に絶縁ストリップ
が破損する際に、成長する亜鉛と陽極板ないしは電槽と
の間が短絡することとなる。[0003] During use, the cathode plate is impregnated with sulfuric acid used as an electrolytic solution, so that aluminum is corroded. This corrosion undesirably occurs under the insulating strip. This is because the acid penetrates between the cathode plate and the insulating strip, where it causes the corrosion of the aluminum very quickly. Therefore, the cathode plate may fall off early. This is because the edges are corroded, the strip loses its support in the plates and, as the insulating strip breaks, a short circuit occurs between the growing zinc and the anode plate or battery case.
【０００４】[0004]
【発明が解決しようとする課題】本発明の課題は、この
腐食の不利な効果を阻止することである。It is an object of the present invention to prevent the adverse effects of this corrosion.
【０００５】[0005]
【課題を解決するための手段】これは、本発明によれ
ば、狭幅側面が電極面と共に形成する縁のまわりに融着
されている絶縁ストリップが共重合体のポリオレフィン
からなることによって達成される。この場合、共重合体
のポリオレフィン／アルミニウムの対は、腐食性の硫酸
電解液に対しとくに液密であることが判明した。この構
造は、高価な共重合体のポリオレフィンをあまり必要と
しないので、非常に低廉である。This is achieved, according to the invention, by the fact that the insulating strip, which is fused around the edge whose narrow side forms with the electrode surface, consists of a copolymeric polyolefin. You. In this case, the polyolefin / aluminum pair of the copolymer was found to be particularly liquid-tight to the corrosive sulfuric acid electrolyte. This structure is very inexpensive because it does not require much expensive copolymer polyolefin.
【０００６】本発明の１実施例ではかかる構造は、絶縁
ストリップが全部高付着性のポリオレフィンからなるよ
うに定められている。In one embodiment of the present invention, such a structure is defined such that the insulating strips are all comprised of highly adherent polyolefin.
【０００７】この構造では、製造すべき極板の個数が大
きい場合に、殊に低廉、はるかに簡単に製造することが
できる。[0007] With this structure, the production is particularly simple and inexpensive when the number of plates to be produced is large.
【０００８】このために使用される製造方法は、本発明
によれば、絶縁ストリップを押出し、押出し後、陰極板
帯状物の付着すべき面に熱時に（１００〜２００℃、と
くに１６０〜１８０℃の温度で、１〜５分間）押しつ
け、絶縁ストリップを備える極板帯状物を陰極板に裁断
し、その後絶縁ストリップを有しない陰極板の縁に保持
装置を溶接するように実施されることが判明した。この
場合、本発明の別の実施例において、ストリップの押出
しを、高付着性の共重合体のポリオレフィンと通常のポ
リオレフィンとの同時押出しによって行なうのが有利で
ある。これにより、極板側でのみ必要な高価な高付着性
のポリオレフィンは少量使用され、これによって本発明
による陰極板の製造は一層有利になる。According to the invention, the production method used for this purpose is to extrude the insulating strip and, after extrusion, apply hot (100-200 ° C., in particular 160-180 ° C.) At a temperature of 1 to 5 minutes), cutting the electrode strip with insulating strips into cathode plates and then welding the holding device to the edges of the cathode plates without insulating strips. did. In this case, in another embodiment of the invention, the strip is advantageously extruded by coextrusion of a highly adherent copolymeric polyolefin with a conventional polyolefin. As a result, a small amount of expensive highly adherent polyolefin, which is required only on the electrode side, is used, which makes the production of the cathode plate according to the invention more advantageous.
【０００９】成形体を押出し、次いで陰極板帯状物上に
融着することによって、押出しに必要な熱は最適に利用
される。製造は連続的に行なうことができ、これによっ
て大量のかかる陰極板帯状物を製造することができる。
この極板帯状物はあとでたんに切断し、それに電流導入
および懸吊に必要な保持装置を配置すればよい。By extruding the compact and then fusing it onto the cathode strip, the heat required for extrusion is optimally utilized. The production can be carried out continuously, whereby large quantities of such cathode plate strips can be produced.
The strip may be simply cut later and the necessary holding devices for current introduction and suspension can be arranged.
【００１０】本発明の１実施形において、付着性の共重
合体のポリオレフィンからなる層を絶縁すべき面上に配
置し、この層上に、本来のストリップ体を形成する通常
のポリオレフィンからなる部材を押しかぶせるようにし
て陰極板を製造するのが有利である。In one embodiment of the present invention, a layer of an adherent copolymer polyolefin is disposed on the surface to be insulated, and a normal polyolefin member forming an original strip is formed on this layer. It is advantageous to manufacture the cathode plate in such a manner that the cathode plate is pressed.
【００１１】この良付着性のポリオレフィンが密に陰極
板と結合されていることによって、電解液は結合部中へ
侵入しえずかつ本来の絶縁ストリップはたんに熱状態で
融着するだけでよい。ポリオレフィン層と絶縁ストリッ
プとの間に存在する付着は、陰極板の使用の際、固定す
るのに十分である。この方法は殊に、少数の陰極板だけ
を作りたいとき（これはしばしば電解装置の修理および
保守の場合である）に経済的である。Due to the tight adhesion of this highly adherent polyolefin to the cathode plate, the electrolyte cannot penetrate into the joint and the original insulating strip only needs to be fused in the hot state. . The adhesion present between the polyolefin layer and the insulating strip is sufficient to secure the cathode plate in use. This method is particularly economical when it is desired to make only a small number of cathode plates, which is often the case in the repair and maintenance of electrolysers.
【００１２】本発明における共重合体のポリオレフィン
は、オレフィンと金属表面に対する付着添加物との共重
合体である。これらの付着添加物は、一般に１〜１０％
の量の脂肪族カルボン酸、例えばアクリル酸またはその
誘導体である。アクリル酸の代りに、たとえば酢酸ビニ
ルのようなエステルが存在していてもよい。酢酸ビニル
はアクリル酸と同時に存在していてもよく、同様に他の
ターポリマーも挙げられる。最後に、十分な耐食性が保
証されている、ポリオレフィンを主体とする溶融接着剤
も適当である。The polyolefin of the copolymer in the present invention is a copolymer of an olefin and an additive adhering to the metal surface. These deposit additives are generally 1-10%
Amount of an aliphatic carboxylic acid, such as acrylic acid or a derivative thereof. Instead of acrylic acid, an ester such as, for example, vinyl acetate may be present. Vinyl acetate may be present at the same time as acrylic acid, as well as other terpolymers. Finally, melt adhesives based on polyolefins, which guarantee sufficient corrosion resistance, are also suitable.
【００１３】[0013]
【実施例】次に本発明を図面につき詳述する。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
【００１４】アルミニウム板１からなる陰極板は、電解
槽３内の電解液２中にあって、その保持装置５が導体レ
ール４，４′に配置され、２つの垂直な狭幅側面にポリ
オレフィンからなる絶縁ストリップ６，６′が固定され
ている。A cathode plate made of an aluminum plate 1 is located in an electrolytic solution 2 in an electrolytic cell 3 and its holding device 5 is arranged on conductor rails 4 and 4 '. Insulating strips 6, 6 'are fixed.
【００１５】図２は、アルミニウム板１の側縁上に、単
一に高付着性の共重合体のポリオレフィンからなる絶縁
ストリップが融着されている陰極板の１実施形を示す。
この絶縁ストリップは、押出されかつ押出し熱の利用下
に融着されていてもよい。FIG. 2 shows one embodiment of a cathode plate in which an insulating strip of a single highly adherent copolymer polyolefin is fused onto the side edges of the aluminum plate 1.
The insulating strip may be extruded and fused using the heat of extrusion.
【００１６】図３は、陰極板のアルミニウム板１上に付
着性の共重合体のポリオレフィンからなる層７が配置さ
れ、この層上へ主として絶縁ストリップ体を形成するＵ
字形のレール状体８が融着されている。融着は、熱時
に、とくに押出し熱の利用下に行なわれる。FIG. 3 shows that a layer 7 made of an adhesive copolymer polyolefin is disposed on an aluminum plate 1 of a cathode plate, and a U which mainly forms an insulating strip on this layer.
The figure-shaped rail-shaped body 8 is fused. The fusion takes place when hot, in particular using the heat of extrusion.
【図１】本発明による陰極板の全体図FIG. 1 is an overall view of a cathode plate according to the present invention.
【図２】本発明による陰極板細部の水平断面の拡大図FIG. 2 is an enlarged view of a horizontal section of a detail of a cathode plate according to the present invention.
【図３】本発明による他の陰極板細部の水平断面の拡大
図FIG. 3 is an enlarged view of a horizontal cross section of another cathode plate detail according to the present invention.
１ 陰極のアルミニウム板、 ２ 電解液、 ３ 電解
槽、 ４，４′ 導体レール、 ５ 保持装置、 ６，
６′ 絶縁ストリップ、 ７ 付着性の共重合体ポリオ
レフィン層、 ８ Ｕ字形レール状の絶縁ストリップ1 Aluminum plate of cathode, 2 Electrolyte, 3 Electrolyzer, 4,4 'Conductor rail, 5 Holding device, 6,
6 'insulating strip, 7 adhesive copolymer polyolefin layer, 8 U-shaped rail-shaped insulating strip
Claims (5)
極板の少なくとも１つの縁上に、これを取巻くように融
着された、プラスチックからなる絶縁ストリップ（６）
を有する、亜鉛の電解製造用陰極板において、絶縁スト
リップ（６）は少なくとも極板（１）に続く部分が共重
合体のポリオレフィンからなることを特徴とする、亜鉛
の電解製造用陰極板。1. A plate (1) of aluminum and an insulating strip (6) of plastic fused onto at least one edge of the plate so as to surround it.
The a, in the electrolytic production for the cathode plate of zinc, the insulating strip (6) is characterized in that part following the at least plate (1) is a polyolefin copolymer, electrolytic manufacturing cathode plate of zinc.
続く層（７）が共重合体のポリオレフィンから構成さ
れ、その上に存在する層（８）が通常のポリオレフィン
から構成されていることを特徴とする、請求項１記載の
陰極板。2. An insulating strip (6) wherein a layer (7) following the electrode plate (1) is composed of a copolymer polyolefin, and a layer (8) present thereon is composed of a normal polyolefin. The cathode plate according to claim 1, wherein:
後まだ熱い状態で陰極板帯状物の縁に押しつけ、次に絶
縁ストリップを備える極板帯状物を陰極板に裁断し、そ
の後絶縁ストリップを有しない陰極板の縁に保持装置
（５）を溶接することを特徴とする、請求項１記載の陰
極板の製造方法。3. put down the insulating strip (6), pressed against the edge of the cathode plate strip while still hot after extrusion, then plate strip with an insulating strip was cut into cathode plate, its <br / insulation, characterized in that welding the holding device (5) the edge of which does not have the cathode plate strips, a manufacturing method of the cathode plate of claim 1, wherein after the>.
合体のポリオレフィンと通常のポリオレフインとの同時
押出しによって行なうことを特徴とする、請求項３記載
の陰極板の製造方法。4. The method for producing a cathode plate according to claim 3, wherein the extruding of the insulating strip (6) is carried out by coextrusion of a copolymer polyolefin and ordinary polyolefin.
絶縁すべき面上に配置し、この層上に通常のポリオレフ
ィンからなるストリップを押しかぶせることを特徴とす
る請求項２記載の陰極板の製造方法。5. A disposed on the copolymer surface to be insulated a layer of a polyolefin, a cathode plate according to claim 2, wherein Rukoto covered press strip of conventional polyolefin to this layer Production method.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0093690A AT395722B (en) | 1990-04-23 | 1990-04-23 | ALUMINUM CATHODE SHEETS FOR ELECTROLYTIC PRODUCTION OF ZINC |
| AT936/90 | 1990-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06293989A JPH06293989A (en) | 1994-10-21 |
| JP2596648B2 true JP2596648B2 (en) | 1997-04-02 |
Family
ID=3503251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3090397A Expired - Lifetime JP2596648B2 (en) | 1990-04-23 | 1991-04-22 | Cathode plate for electrolytic production of zinc |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0454056B2 (en) |
| JP (1) | JP2596648B2 (en) |
| AT (2) | AT395722B (en) |
| CA (1) | CA2041055C (en) |
| DE (1) | DE59108156D1 (en) |
| ES (1) | ES2030645T5 (en) |
| FI (1) | FI97305C (en) |
| NO (1) | NO304658B1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2067411B1 (en) * | 1993-06-18 | 1995-11-01 | Asturiana De Zinc Sa | CATHODE FOR THE ELECTROLYTIC DEPOSITION OF IRON METALS. |
| FI101818B (en) * | 1995-12-08 | 1998-08-31 | Outokumpu Wenmec Oy | A method of making a motherboard for electrolytic cleaning and a motherboard obtained by the method |
| AT404035B (en) * | 1996-06-17 | 1998-07-27 | Fehrer Ernst | Apparatus for needling a pre-consolidated nonwoven web |
| JP3720240B2 (en) * | 2000-05-08 | 2005-11-24 | 日本軽金属株式会社 | Method for producing cathode for electrolytic deposition of nonferrous metal |
| DE10039893A1 (en) * | 2000-08-16 | 2002-02-28 | Km Europa Metal Ag | cathode plate |
| DE102006046879B3 (en) * | 2006-10-04 | 2007-11-22 | Thyssenkrupp Vdm Gmbh | Cathode plate for electrolytic zinc recovery, comprises carrier rod connected to main body of aluminum with external coating of copper applied by hot deformation |
| DE102008041698A1 (en) * | 2008-08-29 | 2010-03-04 | EMS Elektro Metall Schwanenmühle GmbH | Cathode for the electrolytic deposition of zinc or the like. From an electrolyte bath |
| CN103668341A (en) * | 2013-11-22 | 2014-03-26 | 云南和美佳科贸有限公司 | Negative plate with insulating sealed edge |
| CN114703507A (en) * | 2022-03-15 | 2022-07-05 | 洛阳双瑞精铸钛业有限公司 | Titanium aluminium titanium electrolysis zinc negative plate |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5178704A (en) * | 1974-12-28 | 1976-07-08 | Onahama Seiren Kk | |
| NL7609332A (en) * | 1976-08-23 | 1978-02-27 | Shell Int Research | PROCEDURE FOR ELECTROLYTIC WINNING OF A LAYER OF METAL. |
| CA1082131A (en) * | 1977-10-11 | 1980-07-22 | Lucien Babin | Electrode for the electrolytic deposition of metals |
| AU506521B1 (en) * | 1979-02-05 | 1980-01-10 | M.I.M. Technology Marketing Limited | Cathode with stainless steel - copper clad hanger bar |
| JPS57123047A (en) * | 1981-01-22 | 1982-07-31 | Mitsui Petrochemical Ind | Manufacture of laminated board |
| JPS5822552A (en) * | 1981-08-04 | 1983-02-09 | 株式会社東芝 | Controller for monitoring power system |
| DE3174104D1 (en) * | 1981-12-23 | 1986-04-17 | Peter Berger | Electrode edge protector, electrode provided with such protector |
| DE3219300A1 (en) * | 1982-05-22 | 1983-11-24 | Rolf 2838 Sulingen Schweers | Cathode for the electrodeposition of metals, in particular for extracting high-purity zinc |
| JPS6111230A (en) * | 1984-06-27 | 1986-01-18 | Kawasaki Heavy Ind Ltd | Bonding of metal with superhigh molecular weight polyethylene resin |
| JPS61143137A (en) * | 1984-12-18 | 1986-06-30 | 日本石油化学株式会社 | Laminate consisting of ultra-high-molecular-weight polyethylene |
| JPS62161976A (en) * | 1986-01-08 | 1987-07-17 | Showa Denko Kk | Manufacture of electrolytic iron |
| JPS6333590A (en) * | 1986-07-28 | 1988-02-13 | Akita Seiren Kk | Method for insulating and coating peripheral edge part of electrolytic cathode |
| JPS63161725U (en) * | 1987-04-07 | 1988-10-21 |
-
1990
- 1990-04-23 AT AT0093690A patent/AT395722B/en not_active IP Right Cessation
-
1991
- 1991-04-19 NO NO911142A patent/NO304658B1/en not_active IP Right Cessation
- 1991-04-22 JP JP3090397A patent/JP2596648B2/en not_active Expired - Lifetime
- 1991-04-23 ES ES91106515T patent/ES2030645T5/en not_active Expired - Lifetime
- 1991-04-23 CA CA002041055A patent/CA2041055C/en not_active Expired - Lifetime
- 1991-04-23 DE DE59108156T patent/DE59108156D1/en not_active Expired - Lifetime
- 1991-04-23 FI FI911967A patent/FI97305C/en active
- 1991-04-23 AT AT91106515T patent/ATE142715T1/en not_active IP Right Cessation
- 1991-04-23 EP EP91106515A patent/EP0454056B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2041055A1 (en) | 1991-10-24 |
| ES2030645T1 (en) | 1992-11-16 |
| FI911967A0 (en) | 1991-04-23 |
| DE59108156D1 (en) | 1996-10-17 |
| EP0454056B1 (en) | 1996-09-11 |
| EP0454056B2 (en) | 1999-12-15 |
| FI97305B (en) | 1996-08-15 |
| NO304658B1 (en) | 1999-01-25 |
| FI911967A (en) | 1991-10-24 |
| ES2030645T3 (en) | 1996-12-01 |
| JPH06293989A (en) | 1994-10-21 |
| EP0454056A1 (en) | 1991-10-30 |
| ATE142715T1 (en) | 1996-09-15 |
| CA2041055C (en) | 2004-03-02 |
| AT395722B (en) | 1993-02-25 |
| NO911552D0 (en) | 1991-04-19 |
| FI97305C (en) | 1997-09-09 |
| ES2030645T5 (en) | 2000-05-01 |
| NO911552L (en) | 1991-10-24 |
| ATA93690A (en) | 1992-07-15 |
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|---|---|---|
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| JP2596648B2 (en) | Cathode plate for electrolytic production of zinc | |
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