JPH03213560A - Treatment of chlorine dioxide gas - Google Patents
Treatment of chlorine dioxide gasInfo
- Publication number
- JPH03213560A JPH03213560A JP2005306A JP530690A JPH03213560A JP H03213560 A JPH03213560 A JP H03213560A JP 2005306 A JP2005306 A JP 2005306A JP 530690 A JP530690 A JP 530690A JP H03213560 A JPH03213560 A JP H03213560A
- Authority
- JP
- Japan
- Prior art keywords
- cloth
- reactor
- chlorine dioxide
- dioxide gas
- fabric
- 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
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000004155 Chlorine dioxide Substances 0.000 title claims abstract description 24
- 235000019398 chlorine dioxide Nutrition 0.000 title claims abstract description 24
- 239000004744 fabric Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 9
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical class [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 10
- 230000003472 neutralizing effect Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000004061 bleaching Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 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 abstract 2
- 239000011734 sodium Substances 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 229960002218 sodium chlorite Drugs 0.000 description 5
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は工業的に生産加工する長尺布帛を酸活性の亜塩
素酸ソーダを用いて布帛を連続して漂白する装置から布
帛が持ち出す二酸化塩素ガスの処理方法に関するもので
ある。[Detailed Description of the Invention] [Industrial Application Field] The present invention deals with the production and processing of long fabrics by removing the carbon dioxide carried out by the fabrics from a device that continuously bleaches the fabrics using acid-activated sodium chlorite. This invention relates to a method for treating chlorine gas.
［従来の技術］
工業的に生産加工する長尺の綿布帛を連続的に漂白処理
する従来例としては、例えば酸活性の亜塩素酸ソーダ溶
液を処理すべき布帛に含浸せしめ、次いでこの布帛を温
熱が保持される温熱反応機内に導入して、スチーミング
し、酸活性による分解をして漂白を行なっているもので
あるが、この漂白処理時においては、その亜塩素酸ソー
ダの一部が蒸気中で分解し、二酸化塩素ガスが発生する
。この二酸化塩素ガスは、悪臭を有し、衛生的にも害が
あると共に、反応機内の機材を損傷するため、その反応
機内で発生した二酸化塩素ガスを回収し、さらに該ガス
を脱塩素処理して、大気中に放出されることを防いでい
る。ところがその反応機内で移送される含液布帛にあっ
ては、その布帛の内芯部にまで付着含浸されている亜塩
素酸ソーダの完全反応が不可能であって、反ｆ；５機か
ら導出される布帛には残留塩素が含まれ、特に厚手生地
にあっては多量の残留塩素が含まれることから、この残
留塩素が含まれたままで反応機外へ導出されれば、これ
が原因で機外で二酸化塩素ガスが放出され作業環境が汚
染される。すなわち、温熱反応機から引き出される布帛
に追従してその布帛と共に二酸化塩素ガスが持ち出され
、その結果ガス臭による不快感を生じたり、作業環境が
悪化されるといった不具合があった。[Prior Art] A conventional method of continuously bleaching long cotton fabrics for industrial production and processing involves, for example, impregnating the fabric with an acid-activated sodium chlorite solution, and then bleaching the fabric. Bleaching is performed by introducing the sodium chlorite into a thermal reactor that retains heat, steaming it, and decomposing it through acid activity. During this bleaching process, some of the sodium chlorite is Decomposes in steam, producing chlorine dioxide gas. This chlorine dioxide gas has a bad odor, is hygienic, and damages the equipment inside the reactor, so the chlorine dioxide gas generated inside the reactor is collected and the gas is dechlorinated. This prevents it from being released into the atmosphere. However, in the liquid-impregnated fabric transferred in the reactor, it is impossible to completely react the sodium chlorite that is adhered and impregnated to the inner core of the fabric. The fabric that is used contains residual chlorine, and thick fabrics in particular contain a large amount of residual chlorine. chlorine dioxide gas is released and contaminates the working environment. That is, chlorine dioxide gas is carried out along with the fabric as it is drawn out from the thermal reactor, resulting in problems such as unpleasant gas odor and deterioration of the working environment.
［課題を解決するための手段］
本発明はかかる不具合を解消するためになされたもので
、酸活性の亜塩素酸ソーダを利用して布帛の連続漂白処
理時において、反応機から導出される布帛にイ」着され
て反応機外へ持ち出された有毒な二酸化塩素ガスをその
反応機外で放散する前に、還元中和して快適環境を保持
せしめることを目的とするものである。[Means for Solving the Problems] The present invention has been made in order to eliminate such problems, and it is possible to solve the problem by using acid-activated sodium chlorite to bleach fabrics discharged from a reactor during continuous bleaching treatment of fabrics using acid-activated sodium chlorite. The purpose of this is to reduce and neutralize the toxic chlorine dioxide gas that has been carried out of the reactor and to maintain a comfortable environment before dissipating it outside the reactor.
すなわち本発明を具体的に述べるならば、酸活性の亜塩
素酸ソーダをイ」与した被漂白布帛を、温熱反応機内に
供給して漂白処理する漂白方法において、その反応機内
で発生する二酸化塩素ガスが反応機から連続的に導出さ
れる布帛に追従して、その反応機の布帛導出口から持ち
出されて、反応機外で放散しようとする上記ガスに、還
元剤を含む水溶液の霧を接触せしめて、大気中に放散す
る直前の二酸化塩素カスを中和処理せしめて環境汚染を
未然に防止することができるガス処理方法を提供するこ
とにある。That is, to describe the present invention specifically, in a bleaching method in which a fabric to be bleached which has been irradiated with acid-activated sodium chlorite is fed into a thermal reactor and bleached, chlorine dioxide generated in the reactor is A fog of an aqueous solution containing a reducing agent is brought into contact with the gas that is being taken out from the fabric outlet of the reactor and dissipated outside the reactor by following the fabric as the gas is continuously led out of the reactor. At the very least, it is an object of the present invention to provide a gas treatment method that can prevent environmental pollution by neutralizing chlorine dioxide scum just before it is released into the atmosphere.
［実 施 例］
以下に本発明を図面に示す実施例に基いて詳細に説明す
る。[Example] The present invention will be described in detail below based on an example shown in the drawings.
１は長尺布帛２を漂白処理すべき漂白反応機であフて、
この漂白反応機１の内部には、亜塩素酸ソーダか含浸さ
れた布帛２が通過されるものであって、この布帛２がそ
の反応機１内を所定の時間をかりて温熱処理されること
により布帛２の漂白がなされるものである。３はその反
応機に設けられた布帛導入口、４は漂白処理された布帛
を導出するための布帛導出口であって、酸活性の亜塩素
酸ソーダを含浸せしめた長尺布帛２をその反応機１内を
通過させ、この反応機１を通過する間に所望の温熱を作
用させることで目的とする布帛の２票白がなされるもの
である。この漂白時において、漂白液として酸活性の亜
塩素酸ソーダを使用することにより反応機１内において
は、その処理布帛の表面及び反応機１内に二酸化塩素ガ
スが生じ、この二酸化塩素ガスが、反応機１から導出さ
れようとする布帛２の導出に伴なってその導出口４から
持ち出され（引き出され）、反応機１外へ放散される。1 is a bleaching reactor in which a long fabric 2 is to be bleached;
A fabric 2 impregnated with sodium chlorite is passed through the bleaching reactor 1, and the fabric 2 is heated inside the reactor 1 for a predetermined period of time. The fabric 2 is bleached by this process. 3 is a fabric inlet provided in the reactor, and 4 is a fabric outlet for taking out the bleached fabric, and the long fabric 2 impregnated with acid-activated sodium chlorite is passed through the reaction machine. By passing through the reactor 1 and applying a desired amount of heat while passing through the reactor 1, the desired fabric is whitened. During this bleaching, by using acid-activated sodium chlorite as a bleaching solution, chlorine dioxide gas is generated in the reactor 1 on the surface of the treated fabric and within the reactor 1, and this chlorine dioxide gas As the fabric 2 is being led out from the reactor 1, it is taken out (pulled out) from the outlet 4 and diffused outside the reactor 1.
そこで本発明においては、その反応機１の布帛導出口４
から機外へ持ち出されて放散しようとする二酸化塩素ガ
スに、チオ硫酸ソーダ等のアルカリ性水溶液の微細な霧
状気体を接触せしめることにより、その二酸化塩素ガス
か還元中和されて下記式の如く塩に変化し毒性が失われ
無害化されるものである。すなわち、８ ｃｐｏ ｚ”
５Ｎａ２５２０３” １８ＮａＯＨ→８ＨａＣｕ” １
０Ｎａ２ＳＯ４＋９１１２０となり無害化されるもので
ある。Therefore, in the present invention, the fabric outlet 4 of the reactor 1
By contacting the chlorine dioxide gas that is being taken out of the machine and dissipating with a fine mist of an alkaline aqueous solution such as sodium thiosulfate, the chlorine dioxide gas is reduced and neutralized and converted into salt as shown in the following formula. It changes into a substance, loses its toxicity, and becomes harmless. That is, 8 cpo z”
5Na25203"18NaOH→8HaCu" 1
It becomes 0Na2SO4+91120 and becomes harmless.
また反応機１から布帛２によって機外へ持ち出される二
酸化塩素ガスは微量であるので還元中和剤の濃度も０．
１〜０．５％の範囲が好ましく、さらに超音波加湿機あ
るいはその他の噴′Ｎ機等の使用により適量のアルカリ
性気化物を有効に付与せしめることで二酸化塩素ガスが
潰れ有効な無害化がなされるものである。Also, since the amount of chlorine dioxide gas carried out of the reactor 1 by the fabric 2 is very small, the concentration of the reducing neutralizer is also 0.
A range of 1 to 0.5% is preferable, and by effectively applying an appropriate amount of alkaline vapor by using an ultrasonic humidifier or other spray equipment, the chlorine dioxide gas is crushed and effective detoxification is achieved. It is something that
なお還元中和剤としては、チオ硫酸ソーダの他に酸性亜
硫酸ソーダ、亜硫酸ソーダ等を使用することがてきる。In addition to sodium thiosulfate, acidic sodium sulfite, sodium sulfite, etc. can be used as the reducing neutralizing agent.
さらに上記実施例ては、還元中和剤を露化して使用して
いるが、泡化して使用することもできる。Further, in the above embodiments, the reducing neutralizing agent is used in an exposed state, but it can also be used in a foamed form.
［発明の効果］
以上のように本発明は、酸活性の亜塩素酸ソーダを使用
して布帛を連続的に漂白処理する反応機の布帛導出口か
ら、その布帛の導出に伴なって反応機内から反応機外へ
持ち出される二酸化塩素ガスに気化泡化した還元中和剤
を接触させて還元中和する二酸化塩素ガスの処理方法で
あるから、これによれば、反応機の布帛導出口近傍に加
湿機等の簡単な機器を設置するだけて、亜塩素酸ソーダ
を使用する漂白処理現場において、二酸化塩素ガスによ
り作業環境を汚染するという従来の問題点を未然に解消
することができる。また本発明によりは、還元剤のイ」
与４
手段か加温機、噴ｎｍ等の簡１１な機器で可能であるか
ら、従来において提案されていた還元液のシャワー手段
、浸漬手段にして還元剤の無駄あるいは余分な還元液に
よる機材のイ５損等が有効に改善できるという特長か得
られる。[Effects of the Invention] As described above, the present invention has the advantage that, as the fabric is discharged from the fabric outlet of a reactor that continuously bleaches fabric using acid-activated sodium chlorite, This is a chlorine dioxide treatment method in which chlorine dioxide gas brought out of the reactor is brought into contact with a vaporized reducing neutralizing agent to reduce and neutralize it. By simply installing simple equipment such as a humidifier, it is possible to eliminate the conventional problem of contaminating the working environment with chlorine dioxide gas at bleaching sites that use sodium chlorite. Further, according to the present invention, the reducing agent i.
This can be done with simple equipment such as a heating machine or a sprayer, so it is possible to use the conventionally proposed methods of showering or immersing the reducing solution to avoid wasting the reducing agent or damaging the equipment due to excess reducing solution. The advantage is that losses, etc. can be effectively improved.
図面は本発明を実施するに使用される漂白装置の実施例
を示した説明図である。
１・・・漂白反応機 ２・・・布帛３・・・布帛導
入口 ４・・・布帛導出口他４名The drawing is an explanatory diagram showing an embodiment of a bleaching apparatus used to carry out the present invention. 1... Bleaching reactor 2... Fabric 3... Fabric inlet 4... Fabric outlet and 4 others
Claims (1)
漂白処理する反応機の布帛導出口から、その布帛の導出
に伴なって反応機内から反応機外へ持ち出される二酸化
塩素ガスに気化泡化した還元中和剤を接触させて還元中
和することを特徴とする二酸化塩素ガスの処理方法。1. From the fabric outlet of a reactor that continuously bleaches fabric using acid-activated sodium chlorite, it vaporizes into chlorine dioxide gas that is carried out from the reactor to the outside of the reactor as the fabric is discharged. A method for treating chlorine dioxide gas, characterized by reducing and neutralizing it by bringing it into contact with a foamed reducing and neutralizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005306A JPH03213560A (en) | 1990-01-12 | 1990-01-12 | Treatment of chlorine dioxide gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005306A JPH03213560A (en) | 1990-01-12 | 1990-01-12 | Treatment of chlorine dioxide gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03213560A true JPH03213560A (en) | 1991-09-18 |
Family
ID=11607592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005306A Pending JPH03213560A (en) | 1990-01-12 | 1990-01-12 | Treatment of chlorine dioxide gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03213560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006249222B2 (en) * | 2000-07-28 | 2009-07-02 | Tyco Fire Products Lp | Aqueous foamable concentrates and methods |
| CN105525463A (en) * | 2015-11-20 | 2016-04-27 | 北京鹏盛天纤科技有限公司 | A device and a method for bleaching waste textiles with gas phase chlorine dioxide |
-
1990
- 1990-01-12 JP JP2005306A patent/JPH03213560A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006249222B2 (en) * | 2000-07-28 | 2009-07-02 | Tyco Fire Products Lp | Aqueous foamable concentrates and methods |
| CN105525463A (en) * | 2015-11-20 | 2016-04-27 | 北京鹏盛天纤科技有限公司 | A device and a method for bleaching waste textiles with gas phase chlorine dioxide |
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