JPH04235930A - Decomposition and removal of organic chlorine compound - Google Patents
Decomposition and removal of organic chlorine compoundInfo
- Publication number
- JPH04235930A JPH04235930A JP1591191A JP1591191A JPH04235930A JP H04235930 A JPH04235930 A JP H04235930A JP 1591191 A JP1591191 A JP 1591191A JP 1591191 A JP1591191 A JP 1591191A JP H04235930 A JPH04235930 A JP H04235930A
- Authority
- JP
- Japan
- Prior art keywords
- organic chlorine
- solution
- sodium
- chlorine compound
- decomposition
- 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.)
- Pending
Links
- 150000004045 organic chlorine compounds Chemical class 0.000 title claims abstract description 18
- 238000000354 decomposition reaction Methods 0.000 title abstract description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 24
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 239000011734 sodium Substances 0.000 claims abstract description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 12
- 239000002904 solvent Substances 0.000 abstract description 8
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000460 chlorine Substances 0.000 abstract description 6
- 229910052801 chlorine Inorganic materials 0.000 abstract description 6
- 239000011780 sodium chloride Substances 0.000 abstract description 6
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、トリクロロエチレン等
の有機塩素化合物の分解除去方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for decomposing and removing organic chlorine compounds such as trichlorethylene.
【０００２】0002
【従来の技術】半導体産業、ドライクリーニング業、各
種金属部品製造業等では、部品の洗浄等に使用したトリ
クロロエチレン等の有機塩素化合物を回収する際に、そ
れらを効率良く分解し、無害化する必要がある。その場
合に従来から紫外線を用いた分解法が知られているが、
従来は適正な分解条件が不明であるため不確実なもので
あるとされていた（特開平２−２２９５９３号公報等参
照）。[Prior Art] In the semiconductor industry, dry cleaning industry, various metal parts manufacturing industries, etc., when recovering organic chlorine compounds such as trichlorethylene used for cleaning parts, etc., it is necessary to efficiently decompose them and make them harmless. There is. In this case, a decomposition method using ultraviolet light has been known, but
Conventionally, it was considered to be uncertain because the appropriate decomposition conditions were unknown (see Japanese Patent Laid-Open No. 2-229593, etc.).
【０００３】0003
【発明が解決しようとする課題】解決しようとする問題
点は、従来の紫外線を用いた分解法では不確実であると
いうものである。The problem to be solved is that conventional decomposition methods using ultraviolet light are unreliable.
【０００４】0004
【課題を解決するための手段】本発明は、有機塩素化合
物（未処理溶液１）をメチラートまたはイソプロピルア
ルコールにナトリウムを溶かした溶液（溶媒２）下で、
低圧紫外線（紫外線ランプ５）を照射して分解除去する
ようにした有機塩素化合物の分解除去方法である。[Means for Solving the Problems] The present invention provides an organic chlorine compound (untreated solution 1) under a solution of sodium dissolved in methylate or isopropyl alcohol (solvent 2).
This is a method for decomposing and removing organic chlorine compounds by irradiating them with low-pressure ultraviolet light (UV lamp 5).
【０００５】[0005]
【作用】これによれば、低圧紫外線で分解された塩素が
溶液中のナトリウムと反応し、塩化ナトリウムとなって
沈澱、固体化するので、極めて安定且つ効率の良い有機
塩素化合物の分解除去を行うことができる。[Effect] According to this method, chlorine decomposed by low-pressure ultraviolet rays reacts with sodium in the solution and becomes sodium chloride, precipitating and solidifying, resulting in extremely stable and efficient decomposition and removal of organic chlorine compounds. be able to.
【０００６】[0006]
【実施例】図１は本願の方法を実現するための装置の一
例を示す。この図において、１はトリクロロエチレン等
の有機塩素化合物の未処理溶液を示す。この未処理溶液
１が、メチラートまたはイソプロピルアルコールにナト
リウムを溶かした溶液からなる溶媒２と混合（手段３）
されて反応槽４の上部から注入される。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an apparatus for implementing the method of the present invention. In this figure, 1 indicates an untreated solution of an organic chlorine compound such as trichlorethylene. This untreated solution 1 is mixed with a solvent 2 consisting of a solution of sodium in methylate or isopropyl alcohol (means 3).
and injected from the top of the reaction tank 4.
【０００７】この反応槽４はステンレス製シリンダーか
らなり、この内部には複数の紫外線ランプ５と環流板６
が設けられている。そしてこの反応槽４の上部から注入
された混合液は、環流板６にて紫外線ランプ５の周囲を
環流されながら処理され、この反応槽４の下部より処理
された溶液７が取り出される。また反応槽４の下部には
ドレイン８が設けられる。The reaction tank 4 is made of a stainless steel cylinder, and a plurality of ultraviolet lamps 5 and a reflux plate 6 are installed inside the reaction tank 4.
is provided. The mixed liquid injected from the upper part of the reaction tank 4 is treated while being refluxed around the ultraviolet lamp 5 by the reflux plate 6, and the treated solution 7 is taken out from the lower part of the reaction tank 4. Further, a drain 8 is provided at the bottom of the reaction tank 4 .
【０００８】さらに紫外線ランプ５の電極９は水封部１
０を介して反応槽４の上側に突出され、この電極９に電
源部１１から低圧の駆動電圧が供給される。これによっ
て紫外線ランプ５からは例えば主波長が２５３．７ｎｍ
の紫外線が発生される。Furthermore, the electrode 9 of the ultraviolet lamp 5 is connected to the water seal part 1.
The electrode 9 is protruded to the upper side of the reaction tank 4 through the electrode 9, and a low-voltage driving voltage is supplied to this electrode 9 from a power supply section 11. As a result, the main wavelength from the ultraviolet lamp 5 is 253.7 nm, for example.
UV rays are generated.
【０００９】従ってこの方法において、トリクロロエチ
レン等の有機塩素化合物の未処理溶液１が、メチラート
またはイソプロピルアルコールにナトリウムを溶かした
溶媒２下で、主波長２５３．７ｎｍの低圧紫外線を照射
されることにより、紫外線のエネルギーで有機塩素化合
物の炭素と塩素の結合が切れ、この内の塩素が溶媒２中
のナトリウムと反応して塩化ナトリウム（食塩）となっ
て溶液中に沈澱、固体化する。なおこの固体化した塩化
ナトリウムはドレイン８から取り出される。Therefore, in this method, an untreated solution 1 of an organic chlorine compound such as trichlorethylene is irradiated with low pressure ultraviolet light having a dominant wavelength of 253.7 nm in a solvent 2 in which sodium is dissolved in methylate or isopropyl alcohol. The energy of ultraviolet rays breaks the bond between carbon and chlorine in the organic chlorine compound, and the chlorine reacts with the sodium in the solvent 2 to become sodium chloride (salt), which precipitates and solidifies in the solution. Note that this solidified sodium chloride is taken out from the drain 8.
【００１０】こうして上述の方法によれば、低圧紫外線
（紫外線ランプ５）で分解された塩素が溶液（溶媒２）
中のナトリウムと反応し、塩化ナトリウムとなって沈澱
、固体化するので、極めて安定且つ効率の良い有機塩素
化合物の分解除去を行うことができるものである。Thus, according to the above method, chlorine decomposed by low-pressure ultraviolet light (UV lamp 5) is dissolved in solution (solvent 2).
Since it reacts with the sodium contained therein and precipitates and solidifies as sodium chloride, it is possible to decompose and remove organic chlorine compounds in an extremely stable and efficient manner.
【００１１】なお上述の方法において、溶媒２はイソプ
ロピルアルコールにナトリウムを溶かしたものの方が、
メチラートよりもメチルアルコールによる紫外線の吸収
の少ない分だけ効率がよい。しかしながらイソプロピル
アルコールにはナトリウムが溶け難い問題がある。[0011] In the above method, the solvent 2 is one in which sodium is dissolved in isopropyl alcohol.
It is more efficient than methylate because methyl alcohol absorbs less ultraviolet light. However, there is a problem in that sodium is difficult to dissolve in isopropyl alcohol.
【００１２】また上述の方法は、トリクロロエチレンだ
けでなく、クロライド、メチルクロロホルム等の有機塩
素化合物の処理に利用できるものである。The above-mentioned method can also be used to treat not only trichlorethylene but also organic chlorine compounds such as chloride and methylchloroform.
【００１３】[0013]
【発明の効果】この発明によれば、低圧紫外線で分解さ
れた塩素が溶液中のナトリウムと反応し、塩化ナトリウ
ムとなって沈澱、固体化するので、極めて安定且つ効率
の良い有機塩素化合物の分解除去を行うことができるよ
うになった。According to the present invention, chlorine decomposed by low-pressure ultraviolet rays reacts with sodium in the solution to precipitate and solidify as sodium chloride, resulting in extremely stable and efficient decomposition of organic chlorine compounds. It is now possible to perform removal.
【図１】本発明の方法を実現するための装置の一例を示
す構成図である。FIG. 1 is a configuration diagram showing an example of an apparatus for implementing the method of the present invention.
１ トリクロロエチレン等の有機塩素化合物の未処理
溶液
２ メチラートまたはイソプロピルアルコールにナト
リウムを溶かした溶媒
３ 混合手段
４ 反応槽
５ 紫外線ランプ
６ 環流板
７ 処理された溶液
８ ドレイン
９ 電極
１０ 水封部
１１ 電源部1 Untreated solution of organic chlorine compound such as trichlorethylene 2 Solvent in which sodium is dissolved in methylate or isopropyl alcohol 3 Mixing means 4 Reaction tank 5 Ultraviolet lamp 6 Reflux plate 7 Treated solution 8 Drain 9 Electrode 10 Water seal part 11 Power supply part
Claims (1)
ソプロピルアルコールにナトリウムを溶かした溶液下で
、低圧紫外線を照射して分解除去するようにした有機塩
素化合物の分解除去方法。1. A method for decomposing and removing an organic chlorine compound, the organic chlorine compound being decomposed and removed by irradiation with low-pressure ultraviolet light in a solution of sodium dissolved in methylate or isopropyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1591191A JPH04235930A (en) | 1991-01-16 | 1991-01-16 | Decomposition and removal of organic chlorine compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1591191A JPH04235930A (en) | 1991-01-16 | 1991-01-16 | Decomposition and removal of organic chlorine compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04235930A true JPH04235930A (en) | 1992-08-25 |
Family
ID=11901963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1591191A Pending JPH04235930A (en) | 1991-01-16 | 1991-01-16 | Decomposition and removal of organic chlorine compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04235930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393394A (en) * | 1992-08-18 | 1995-02-28 | Kabushiki Kaisha Toshiba | Method and apparatus for decomposing organic halogen-containing compound |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525742A (en) * | 1975-07-01 | 1977-01-17 | Toray Eng Co Ltd | Process for dechlorination of pcb |
| JPS5247459A (en) * | 1975-10-13 | 1977-04-15 | Kubota Ltd | Straw transporting device |
| JPS5310580A (en) * | 1976-07-15 | 1978-01-31 | Matsushita Electric Works Ltd | Masseur |
-
1991
- 1991-01-16 JP JP1591191A patent/JPH04235930A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525742A (en) * | 1975-07-01 | 1977-01-17 | Toray Eng Co Ltd | Process for dechlorination of pcb |
| JPS5247459A (en) * | 1975-10-13 | 1977-04-15 | Kubota Ltd | Straw transporting device |
| JPS5310580A (en) * | 1976-07-15 | 1978-01-31 | Matsushita Electric Works Ltd | Masseur |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393394A (en) * | 1992-08-18 | 1995-02-28 | Kabushiki Kaisha Toshiba | Method and apparatus for decomposing organic halogen-containing compound |
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