JPS6134518B2 - - Google Patents
Info
- Publication number
- JPS6134518B2 JPS6134518B2 JP58178915A JP17891583A JPS6134518B2 JP S6134518 B2 JPS6134518 B2 JP S6134518B2 JP 58178915 A JP58178915 A JP 58178915A JP 17891583 A JP17891583 A JP 17891583A JP S6134518 B2 JPS6134518 B2 JP S6134518B2
- Authority
- JP
- Japan
- Prior art keywords
- anode
- exchange membrane
- cation exchange
- finger
- 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.)
- Expired
Links
- 239000012528 membrane Substances 0.000 claims description 24
- 238000005341 cation exchange Methods 0.000 claims description 23
- 239000003014 ion exchange membrane Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 239000010425 asbestos Substances 0.000 description 7
- 229910052895 riebeckite Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Description
【発明の詳細な説明】
本発明は新規な陽イオン交換膜電解槽に関し、
更に詳しくはフインガー型電解槽に陽イオン交換
膜を装着してなり、高純度の苛性アルカリがえら
れ且つ消費電力の少ない陽イオン交換膜電解槽に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel cation exchange membrane electrolyzer,
More specifically, the present invention relates to a cation exchange membrane electrolytic cell which is a finger-type electrolytic cell equipped with a cation exchange membrane, which produces high purity caustic alkali and consumes little power.
従来、アスベスト隔膜により陽極室と陰極室と
に区画されたフインガー型電解槽を用いてハロゲ
ン化アルカリ水溶液、例えば塩化アルカリ水溶液
から塩素及び水酸化アルカリ水溶液を製造する方
法は、製品塩素中の酸素濃度が高い上、製品水酸
化アルカリ水溶液中の塩化アルカリ濃度が高いと
いう製品品質上の問題と、得られる水酸化アルカ
リ水溶液濃度が約10％と低いために濃縮を必要と
し、従つて濃縮用のエネルギーを要するという問
題がある。更にまた、アスベストに起因する労働
環境上の問題も無視できない。これに対して陽イ
オン交換膜電解槽を使用する方法は製品品質は良
好である上、得られる水酸化アルカリ水溶液の濃
度が30％以上と高く濃縮用のエネルギーが少なく
てすむという利点があるばかりでなく、またアス
ベストの如き労働環境上の問題を伴わない。しか
して、アスベスト隔膜電解槽をスクラツプ化する
ことなく陽イオン交換膜電解槽に転換することが
できれば産業上も労働衛生上も極めて望ましく、
また省エネルギーの諸施策にも大きく貢献するこ
とになる。 Conventionally, a method for producing chlorine and alkali hydroxide aqueous solution from an alkali halide aqueous solution, for example, an alkali chloride aqueous solution, using a finger-type electrolytic cell divided into an anode chamber and a cathode chamber by an asbestos diaphragm, has been carried out by reducing the oxygen concentration in the product chlorine. In addition, there are product quality problems such as a high concentration of alkali chloride in the product aqueous alkali hydroxide solution, and the concentration of the resulting aqueous alkali hydroxide solution is as low as about 10%, requiring concentration, which requires energy for concentration. There is a problem in that it requires Furthermore, problems with the working environment caused by asbestos cannot be ignored. On the other hand, the method of using a cation exchange membrane electrolyzer has the advantage that not only the product quality is good, but also the concentration of the alkali hydroxide aqueous solution obtained is high at 30% or more, requiring less energy for concentration. It also does not pose any labor environment problems like asbestos. Therefore, it would be extremely desirable from an industrial and occupational health perspective if an asbestos diaphragm electrolytic cell could be converted to a cation exchange membrane electrolytic cell without having to be scrapped.
It will also greatly contribute to various energy-saving measures.
本発明者等はかかる見地から鋭意研究を重ねた
結果、本発明を完成するに至つたものである。 The present inventors have completed the present invention as a result of extensive research from this perspective.
即ち、本発明は平行列垂直に設けられたフイン
ガー状陰極と、底板上に植設された陽極とを備え
たフインガー型電解槽において、前記陰極と陽極
との間に陽イオン交換膜が装着され、且つ該陽イ
オン交換膜と陽極とは該陽極のバネにより密着し
た構造からなることを特徴とする陽イオン交換膜
電解槽を内容とする。 That is, the present invention provides a finger-type electrolytic cell equipped with finger-shaped cathodes arranged vertically in parallel rows and an anode planted on a bottom plate, in which a cation exchange membrane is installed between the cathode and the anode. , and the cation exchange membrane electrolytic cell is characterized in that the cation exchange membrane and the anode are in close contact with each other by a spring of the anode.
尚、本発明において、フインガー型電解槽とは
J.S.SCONCE編“CHLORINE−Its
Manufecture，Properties And Uses（Reinhold
Publishing Corporation，NEW YORK，1962）
の93頁に記載されているFinger−type
construction の電解槽のほかに、Flattened
tube−type construction の電解槽をも包含す
る。かかる電解槽としては、例えばフツカ−Ｈ−
４型、Ｈ−2A型、ダイヤモンドシヤムロツクDS
−85型、DS−45型等が挙げられる。 In addition, in the present invention, what is a finger type electrolytic cell?
Edited by JSSCONCE “CHLORINE-Its”
Manufacture, Properties And Uses (Reinhold
Publishing Corporation, NEW YORK, 1962)
Finger-type described on page 93 of
Besides construction of electrolyzer, Flattened
It also includes electrolyzers of tube-type construction. As such an electrolytic cell, for example, Futsuka-H-
4 type, H-2A type, diamond sham lock DS
-85 type, DS-45 type, etc.
本発明に用いられる陽極としては、アスベスト
隔膜法で使用されている所謂ボツクス型金属電極
の両端を切断し押し拡げることを可能とした構造
の電極を使用しうる。アスベスト隔膜をテフロン
系樹脂で処理した改造隔膜法で使用されている所
謂拡張可能金属陽極タイプの電極を使用すること
も出来る。これはバネの力で拡張するものである
が、バネの拡張力を調節することにより、陽イオ
ン交換膜に陽極を密着させることが出来る。 As the anode used in the present invention, an electrode having a structure in which both ends of a so-called box-shaped metal electrode used in the asbestos diaphragm method can be cut and expanded can be used. It is also possible to use a so-called expandable metal anode type electrode used in the modified diaphragm method in which an asbestos diaphragm is treated with a Teflon resin. This is expanded by the force of a spring, and by adjusting the expansion force of the spring, the anode can be brought into close contact with the cation exchange membrane.
フインガー状陰極と陽イオン交換膜との間隔
は、０乃至５mm、より好ましくは０乃至３mmに保
持される。 The distance between the finger cathode and the cation exchange membrane is maintained at 0 to 5 mm, more preferably 0 to 3 mm.
以下、本発明の実施態様を示す図面に基づいて
説明するが、本発明はこれにより制限されるもの
ではない。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on drawings, but the present invention is not limited thereto.
第１図において、本発明電解槽はFRP製セル
カバー１、フインガー状陰極２及び拡張可能金属
陽極３からなる単極式フインガー型電解槽に、陽
イオン交換膜４を装着してなる。 In FIG. 1, the electrolytic cell of the present invention is a monopolar finger-type electrolytic cell consisting of an FRP cell cover 1, a finger-shaped cathode 2, and an expandable metal anode 3, and a cation exchange membrane 4 is attached thereto.
セルカバー１は陽極液入り口５、陽極液出口６
及び陽極ガス出口７を備えている。フインガー状
陰極２を平行列垂直に内蔵してある陰極ボツクス
８は、陰極液入り口９、陰極液出口１０及び陰極
ガス出口１１を備えている。 The cell cover 1 has an anolyte inlet 5 and an anolyte outlet 6
and an anode gas outlet 7. A cathode box 8 in which finger cathodes 2 are housed in parallel rows and vertically is provided with a catholyte inlet 9, a catholyte outlet 10 and a cathode gas outlet 11.
拡張可能金属陽極３は底板１２に平行列垂直に
植設され、ゴム製ブランケツト１３によりシール
されている。拡張可能金属陽極３はそれぞれ対向
するフインガー状陰極２と咬合するように組も立
てられる。 Expandable metal anodes 3 are implanted vertically in parallel rows in the bottom plate 12 and sealed by a rubber blanket 13. The expandable metal anodes 3 are also assembled to interlock with respective opposing finger-shaped cathodes 2.
陽イオン交換膜４としては、デユポン社製“ナ
フイオン＃315”膜を腹巻型に成形し、チタン製
陽イオン交換膜取りつけ枠１４を使用して、押さ
え板１５及びパツキン１６を介して圧着（ボルト
締め）によつて装着されている。 As the cation exchange membrane 4, a "Nafion #315" membrane made by DuPont was formed into a belly band shape, and was crimped (bolted) using a titanium cation exchange membrane mounting frame 14 through a presser plate 15 and a packing 16. It is attached by tightening.
かくして、陽イオン交換膜４を介して内部に拡
張可能金属陽極３を有する陽極室１７とフインガ
ー状陰極２を有する陰極室１８とが形成される。 In this way, an anode chamber 17 having an expandable metal anode 3 therein and a cathode chamber 18 having a finger-shaped cathode 2 are formed through the cation exchange membrane 4.
陽イオン交換膜４と拡張可能金属陽極３とは該
陽極のバネを調節して両者は密着して構成されて
いる。 The cation exchange membrane 4 and the expandable metal anode 3 are configured to be in close contact with each other by adjusting the spring of the anode.
上記電解槽を用いて塩化ナトリウム水溶液を電
解する方法について述べると、塩化ナトリウム水
溶液は陽極液入り口５より供給され、拡張可能金
属陽極３により電気分解されて発生する塩素ガス
は陽極ガス出口７より取り出される。一方、電気
分解された淡塩水は陽極液出口６より取り出され
る。他方、陰極液入り口９を通じて水又は希薄苛
性ソーダ水溶液が陰極室１８に導入され、フイン
ガー状陰極２により電気分解され、水素ガスが発
生する。発生した水素ガスは陰極ガス出口１１よ
り排出され、一方、濃苛性ソーダは陰極液出口１
０より取り出される。 Describing the method of electrolyzing a sodium chloride aqueous solution using the above electrolytic cell, the sodium chloride aqueous solution is supplied from the anolyte inlet 5, and the chlorine gas generated by electrolysis by the expandable metal anode 3 is taken out from the anode gas outlet 7. It can be done. On the other hand, the electrolyzed fresh salt water is taken out from the anolyte outlet 6. On the other hand, water or dilute aqueous caustic soda solution is introduced into the cathode chamber 18 through the catholyte inlet 9 and electrolyzed by the finger-shaped cathode 2 to generate hydrogen gas. The generated hydrogen gas is discharged from the cathode gas outlet 11, while concentrated caustic soda is discharged from the catholyte outlet 1.
Extracted from 0.
本発明の特徴は、フインガー型電解槽に陽イオ
ン交換膜を装着し、且つ陽イオン交換膜と陽極と
は該陽極のバネの反発力を利用して密着した構造
とすることにより、高純度の製品を低いセル電圧
及び低電力で得られる新規電解槽を提供すること
にある。かくして、フインガー型電解槽の構造に
より、陽イオン交換膜の装着の方法、電解液の入
り口、出口の位置等多くの変形が可能であり、本
発明の精神、原理を逸脱しない限り本発明の範囲
に含まれる。 The feature of the present invention is that a cation exchange membrane is attached to a finger-type electrolytic cell, and the cation exchange membrane and anode are closely attached using the repulsive force of the spring of the anode, thereby achieving high purity. The purpose of the present invention is to provide a new electrolytic cell that can produce products with low cell voltage and low power. Thus, depending on the structure of the finger-type electrolytic cell, many modifications such as the mounting method of the cation exchange membrane, the position of the electrolyte inlet and outlet, etc. are possible, and the scope of the present invention does not depart from the spirit and principle of the present invention. include.
叙上の通り、本発明は、
(1) フインガー型電解槽をスクラツプ化すること
なく陽イオン交換膜電解槽に転換できる。 As mentioned above, the present invention has the following advantages: (1) A finger type electrolytic cell can be converted into a cation exchange membrane electrolytic cell without scrapping.
(2) 低いセル電圧で高品質の製品がえられる。(2) High quality products can be obtained with low cell voltage.
(3) 濃縮の割合が少なくてすむから蒸気費を節約
でき、省エネに奉仕する、
(4) アスベスト公害という労働環境上の問題が皆
無である、
等の利点を有し、その実用性は頗る大である。(3) Since the concentration ratio is small, steam costs can be saved, contributing to energy conservation; (4) There are no problems in the working environment such as asbestos pollution. It's large.
第１図は本発明電解槽の実施態様を示す概略断
面図である。
１……セルカバー、２……フインガー状陰極、
３……拡張可能金属陽極、４……陽イオン交換
膜、５……陽極液入り口、６……陽極液出口、７
……陽極ガス出口、８……陰極ボツクス、９……
陰極液入り口、１０……陰極液出口、１１……陰
極ガス出口、１２……底板、１３……ゴム製ブラ
ンケツト、１４……陽イオン交換膜取り付け枠、
１５……押さえ板、１６……パツキン、１７……
陽極室、１８……陰極室。
FIG. 1 is a schematic sectional view showing an embodiment of the electrolytic cell of the present invention. 1...Cell cover, 2...Finger-shaped cathode,
3... Expandable metal anode, 4... Cation exchange membrane, 5... Anolyte inlet, 6... Anolyte outlet, 7
...Anode gas outlet, 8...Cathode box, 9...
catholyte inlet, 10... catholyte outlet, 11... cathode gas outlet, 12... bottom plate, 13... rubber blanket, 14... cation exchange membrane mounting frame,
15...Press plate, 16...Patzkin, 17...
Anode chamber, 18... cathode chamber.
Claims (1)
と、底板上に植設された陽極とを備えたフインガ
ー型電解槽において、前記陰極と陽極との間に陽
イオン交換膜が装着され、且つ該陽イオン交換膜
と陽極とは該陽極のバネにより密着した構造から
なることを特徴とする陽イオン交換膜電解槽。1. In a finger-type electrolytic cell equipped with finger-shaped cathodes arranged vertically in parallel rows and an anode implanted on a bottom plate, a cation exchange membrane is installed between the cathode and the anode, and the anode 1. A cation exchange membrane electrolytic cell characterized in that the ion exchange membrane and the anode are in close contact with each other by a spring of the anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58178915A JPS60211089A (en) | 1983-09-26 | 1983-09-26 | Electrolytic cell provided with finger shaped electrode and cation exchange membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58178915A JPS60211089A (en) | 1983-09-26 | 1983-09-26 | Electrolytic cell provided with finger shaped electrode and cation exchange membrane |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11410777A Division JPS5447877A (en) | 1977-09-22 | 1977-09-22 | Electrolyzing method for alkali metal chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60211089A JPS60211089A (en) | 1985-10-23 |
| JPS6134518B2 true JPS6134518B2 (en) | 1986-08-08 |
Family
ID=16056879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58178915A Granted JPS60211089A (en) | 1983-09-26 | 1983-09-26 | Electrolytic cell provided with finger shaped electrode and cation exchange membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60211089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458509U (en) * | 1990-09-25 | 1992-05-20 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5035031A (en) * | 1973-06-27 | 1975-04-03 | ||
| JPS50109899A (en) * | 1974-02-04 | 1975-08-29 | ||
| JPS5211177A (en) * | 1975-07-14 | 1977-01-27 | Olin Corp | Apparatus and method for fixing diaphragm |
| JPS5447877A (en) * | 1977-09-22 | 1979-04-14 | Kanegafuchi Chem Ind Co Ltd | Electrolyzing method for alkali metal chloride |
-
1983
- 1983-09-26 JP JP58178915A patent/JPS60211089A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5035031A (en) * | 1973-06-27 | 1975-04-03 | ||
| JPS50109899A (en) * | 1974-02-04 | 1975-08-29 | ||
| JPS5211177A (en) * | 1975-07-14 | 1977-01-27 | Olin Corp | Apparatus and method for fixing diaphragm |
| JPS5447877A (en) * | 1977-09-22 | 1979-04-14 | Kanegafuchi Chem Ind Co Ltd | Electrolyzing method for alkali metal chloride |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458509U (en) * | 1990-09-25 | 1992-05-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60211089A (en) | 1985-10-23 |
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