WO2011074495A1 - Method for reusing waste liquid from which tetraalkylammonium ions have been removed - Google Patents
Method for reusing waste liquid from which tetraalkylammonium ions have been removed Download PDFInfo
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- WO2011074495A1 WO2011074495A1 PCT/JP2010/072239 JP2010072239W WO2011074495A1 WO 2011074495 A1 WO2011074495 A1 WO 2011074495A1 JP 2010072239 W JP2010072239 W JP 2010072239W WO 2011074495 A1 WO2011074495 A1 WO 2011074495A1
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- waste liquid
- taa
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/04—Processes using organic exchangers
- B01J39/07—Processes using organic exchangers in the weakly acidic form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
Abstract
Description
本発明の精製方法において用いるTAAイオン含有廃液について詳細に説明する。 <TAA ion-containing waste liquid>
The TAA ion-containing waste liquid used in the purification method of the present invention will be described in detail.
前記TAAイオン含有廃液には、半導体及び液晶製造工程における、金属層や配管材料から溶出する微量の金属成分が含まれている。前記金属成分の濃度については、例えば、半導体製造工程にて排出されるTAAイオン含有廃液では0.1~50ppb、液晶製造工程にて排出されるTAAイオン含有廃液では1~100ppb程度である。 The concentration of TAA ions in the TAA ion-containing waste liquid used in the present invention is not particularly limited, and waste liquids having various TAA ion concentrations can be used. The concentration of TAA ions in the TAA ion-containing developer waste discharged in the development step is usually about 1.0 to 5.0% by mass, but a large amount of TAA ion-containing rinse waste is generated by the rinse step. The concentration of TAA ions in the TAA ion-containing waste liquid discharged from the semiconductor and liquid crystal manufacturing process is usually about 1% by mass or less because it is mixed with the development waste liquid. A trace amount of metal components eluted from the metal layer and the piping material in the process are included. The concentration of the metal component is, for example, about 0.1 to 50 ppb for the TAA ion-containing waste liquid discharged in the semiconductor manufacturing process, and about 1 to 100 ppb for the TAA ion-containing waste liquid discharged in the liquid crystal manufacturing process.
本発明においては、TAAイオン含有廃液を陽イオン交換樹脂に接触させる。TAAイオン含有廃液を陽イオン交換樹脂に接触させると、陽イオン交換樹脂の対イオンとTAAイオンが交換され、陽イオン交換樹脂にTAAイオンが吸着される。この結果、TAAイオン含有廃液からTAAイオンを回収することができる。 <Contact between TAA ion-containing waste liquid and cation exchange resin>
In the present invention, the TAA ion-containing waste liquid is brought into contact with a cation exchange resin. When the TAA ion-containing waste liquid is brought into contact with the cation exchange resin, the counter ion of the cation exchange resin and the TAA ion are exchanged, and the TAA ions are adsorbed on the cation exchange resin. As a result, TAA ions can be recovered from the TAA ion-containing waste liquid.
陽イオン交換樹脂に吸着されたTAAイオンは、前記樹脂に酸を接触させることにより、溶離させることができる。かかる陽イオン交換樹脂に接触せしめる酸としては、水溶液の状態で水素イオンが生成するものであれば特に限定されず、例えば、塩酸、硫酸等の鉱酸水溶液が例示される。前記の酸のうち、工業的に安価で入手可能な点、及び濃度調整が容易な点から、塩酸が最も好適である。前記塩酸の濃度及び使用量については、吸着されたTAAイオンを溶離するのに十分な濃度及び量であれば特に限定されないが、通常は前記陽イオン交換樹脂に、1~10質量%の塩酸を1~10(L/L-樹脂)接触せしめれば十分である。 <Recovery of TAA ions>
TAA ions adsorbed on the cation exchange resin can be eluted by contacting the resin with an acid. The acid brought into contact with the cation exchange resin is not particularly limited as long as hydrogen ions are generated in an aqueous solution state, and examples thereof include aqueous mineral acid solutions such as hydrochloric acid and sulfuric acid. Of the above acids, hydrochloric acid is most preferred because it is industrially inexpensive and available, and the concentration can be easily adjusted. The concentration and amount of the hydrochloric acid are not particularly limited as long as the concentration and amount are sufficient to elute the adsorbed TAA ions. Usually, 1 to 10% by mass of hydrochloric acid is added to the cation exchange resin. It is sufficient to make 1-10 (L / L-resin) contact.
TAAイオン含有廃液を、陽イオン交換樹脂に接触させて前記TAAイオンを吸着させることにより、TAAイオンを回収した後のTAAイオン除去廃液は、TAAイオンの濃度が50ppm以下であり、pH4.0~9.0程度であり、金属イオンが合計で10ppm以下、好ましくは1~200ppb程度であり、有機物がCOD換算で1~200ppm程度含有された比較的高純度の水である。本発明では、かかるTAAイオン除去廃液を、工水として再使用することが特徴である。なお、本発明においてTAAイオン除去廃液は、そのまま、後述する水として再利用する事が可能であるが、使用する目的に応じて、適切な後処理(例えば、酸又はアルカリの添加によるTAAイオン除去廃液のpHの調整等)を行った後に用いることも可能である。 <Reuse of TAA ion removal waste liquid>
By contacting the TAA ion-containing waste liquid with a cation exchange resin to adsorb the TAA ions, the TAA ion removal waste liquid after recovering TAA ions has a concentration of TAA ions of 50 ppm or less, and has a pH of 4.0 to It is about 9.0, a total of 10 ppm or less, preferably about 1 to 200 ppb of metal ions, and relatively high purity water containing about 1 to 200 ppm of organic matter in terms of COD. In the present invention, such a TAA ion removing waste liquid is characterized by being reused as industrial water. In the present invention, the TAA ion-removed waste liquid can be reused as water as described later, but depending on the purpose of use, an appropriate post-treatment (for example, removal of TAA ions by addition of acid or alkali) It can also be used after adjusting the pH of the waste liquid).
弱酸性陽イオン交換樹脂DIAION WK40L(三菱化学社製)100mlを直径2.2cmのガラスカラムに充填し、1規定の塩酸を樹脂量に対する空間速度6L/L-樹脂・hr(600ml/hr:SV=6)で800ml通液して樹脂をH型に再生した。次いで、樹脂中に残留する塩酸を超純水で洗浄した。 Example 1
100 ml of weakly acidic cation exchange resin DIAION WK40L (manufactured by Mitsubishi Chemical Corporation) is packed in a glass column with a diameter of 2.2 cm, and 1N hydrochloric acid has a space velocity of 6 L / L-resin · hr (600 ml / hr: SV). = 6), 800 ml of liquid was passed through to regenerate the resin into H type. Next, hydrochloric acid remaining in the resin was washed with ultrapure water.
弱酸性陽イオン交換樹脂DIAION WK40L(三菱化学社製)100mlを直径2.2cmのガラスカラムに充填し、1規定の塩酸を樹脂量に対する空間速度6L/L-樹脂・hr(600ml/hr:SV=6)で800ml通液して樹脂をH型に再生した。次いで、樹脂中に残留する塩酸を超純水で洗浄した。 Example 2
100 ml of weakly acidic cation exchange resin DIAION WK40L (manufactured by Mitsubishi Chemical Corporation) is packed in a glass column with a diameter of 2.2 cm, and 1N hydrochloric acid has a space velocity of 6 L / L-resin · hr (600 ml / hr: SV). = 6), 800 ml of liquid was passed through to regenerate the resin into H type. Next, hydrochloric acid remaining in the resin was washed with ultrapure water.
Claims (8)
- テトラアルキルアンモニウムイオン含有廃液を、陽イオン交換樹脂に接触させてテトラアルキルアンモニウムイオンを吸着させることにより、テトラアルキルアンモニウムイオン除去廃液を得て、
前記テトラアルキルアンモニウムイオン除去廃液を工水として再利用することを特徴とするテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The tetraalkylammonium ion-containing waste liquid is obtained by contacting the tetraalkylammonium ion-containing waste liquid with a cation exchange resin to adsorb tetraalkylammonium ions,
A method for reusing a tetraalkylammonium ion removal waste liquid, wherein the tetraalkylammonium ion removal waste liquid is reused as industrial water. - 前記陽イオン交換樹脂のイオン形が水素イオン形である請求項1に記載のテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The method for reusing a tetraalkylammonium ion removal waste liquid according to claim 1, wherein the ion form of the cation exchange resin is a hydrogen ion form.
- 前記陽イオン交換樹脂のナトリウム溶出量が100ppb以下である請求項1に記載のテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The method for reusing a tetraalkylammonium ion removal waste liquid according to claim 1, wherein the sodium elution amount of the cation exchange resin is 100 ppb or less.
- 前記テトラアルキルアンモニウムイオン除去廃液のテトラアルキルアンモニウムイオン濃度が50ppm以下であり、金属イオンの合計の濃度が10ppm以下である請求項1に記載のテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The tetraalkylammonium ion removal waste liquid according to claim 1, wherein the tetraalkylammonium ion removal waste liquid has a tetraalkylammonium ion concentration of 50 ppm or less and a total concentration of metal ions of 10 ppm or less.
- 前記テトラアルキルアンモニウムイオン除去廃液を現像工程後のリンス工程で使用するリンス液の一部として利用する請求項1に記載のテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The method for reusing a tetraalkylammonium ion removal waste liquid according to claim 1, wherein the tetraalkylammonium ion removal waste liquid is used as part of a rinse liquid used in a rinsing step after the development step.
- 前記テトラアルキルアンモニウムイオン除去廃液を現像工程で使用する現像液の希釈水の少なくとも一部として利用する請求項1に記載のテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The method for reusing a tetraalkylammonium ion removal waste liquid according to claim 1, wherein the tetraalkylammonium ion removal waste liquid is utilized as at least a part of dilution water of a developer used in a development step.
- 前記テトラアルキルアンモニウムイオン除去廃液は、有機物除去工程により有機物が除去されている請求項5又は6に記載のテトラアルキルアンモニウムイオン除去廃液の再利用方法。 The recycling method of the tetraalkylammonium ion removal waste liquid according to claim 5 or 6, wherein the organic matter is removed from the tetraalkylammonium ion removal waste liquid by an organic matter removal step.
- 前記テトラアルキルアンモニウムイオン除去廃液を、陽イオン交換樹脂及び/又はキレート樹脂に接触させて前記テトラアルキルアンモニウムイオン除去廃液に含まれる金属イオンを吸着させることにより、テトラアルキルアンモニウムイオン及び金属イオン除去廃液を得て、
前記テトラアルキルアンモニウムイオン及び金属イオン除去廃液を超純水として再利用することを特徴とするテトラアルキルアンモニウムイオン及び金属イオン除去廃液の再利用方法。 By bringing the tetraalkylammonium ion removal waste liquid into contact with a cation exchange resin and / or a chelate resin and adsorbing metal ions contained in the tetraalkylammonium ion removal waste liquid, the tetraalkylammonium ion and metal ion removal waste liquid is obtained. Get,
The tetraalkylammonium ion and metal ion removal waste liquid is reused as ultrapure water.
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CN2010800552990A CN102686520A (en) | 2009-12-15 | 2010-12-10 | Method for reusing waste liquid from which tetraalkylammonium ions have been removed |
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JP2009284409A JP2011125770A (en) | 2009-12-15 | 2009-12-15 | Method for recycling treated waste liquid |
JP2009-284409 | 2009-12-15 |
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KR (1) | KR20120103633A (en) |
CN (1) | CN102686520A (en) |
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WO (1) | WO2011074495A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013062100A1 (en) * | 2011-10-28 | 2013-05-02 | 株式会社トクヤマ | Method for producing tetraalkylammonium salt solution |
Families Citing this family (2)
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US9045446B2 (en) * | 2012-07-05 | 2015-06-02 | Arakawa Chemical Industries, Ltd. | Method for producing epoxy compound |
US9115050B2 (en) * | 2013-12-30 | 2015-08-25 | Sachem, Inc. | Process for improved recovery of onium hydroxide from compositions containing process residues |
Citations (5)
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JPH06142649A (en) * | 1992-11-10 | 1994-05-24 | Tama Kagaku Kogyo Kk | Treatment of organic quaternary ammonium hydroxide-containing waste liquid |
JPH06304557A (en) * | 1993-04-22 | 1994-11-01 | Nomura Micro Sci Kk | Waste liquid treating method |
JPH1099853A (en) * | 1996-09-27 | 1998-04-21 | Kurita Water Ind Ltd | Apparatus for treating water containing tetraalkylammonium hydroxide |
JP2005329315A (en) * | 2004-05-19 | 2005-12-02 | Japan Organo Co Ltd | Method and apparatus for recovering water from drainage containing tetraalkyl ammonium ion |
JP2007181833A (en) * | 2007-04-05 | 2007-07-19 | Japan Organo Co Ltd | Method for treating tetraalkylammonium ion-containing solution |
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2009
- 2009-12-15 JP JP2009284409A patent/JP2011125770A/en active Pending
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2010
- 2010-12-10 KR KR1020127015301A patent/KR20120103633A/en not_active Application Discontinuation
- 2010-12-10 CN CN2010800552990A patent/CN102686520A/en active Pending
- 2010-12-10 WO PCT/JP2010/072239 patent/WO2011074495A1/en active Application Filing
- 2010-12-15 TW TW099143883A patent/TW201129414A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06142649A (en) * | 1992-11-10 | 1994-05-24 | Tama Kagaku Kogyo Kk | Treatment of organic quaternary ammonium hydroxide-containing waste liquid |
JPH06304557A (en) * | 1993-04-22 | 1994-11-01 | Nomura Micro Sci Kk | Waste liquid treating method |
JPH1099853A (en) * | 1996-09-27 | 1998-04-21 | Kurita Water Ind Ltd | Apparatus for treating water containing tetraalkylammonium hydroxide |
JP2005329315A (en) * | 2004-05-19 | 2005-12-02 | Japan Organo Co Ltd | Method and apparatus for recovering water from drainage containing tetraalkyl ammonium ion |
JP2007181833A (en) * | 2007-04-05 | 2007-07-19 | Japan Organo Co Ltd | Method for treating tetraalkylammonium ion-containing solution |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013062100A1 (en) * | 2011-10-28 | 2013-05-02 | 株式会社トクヤマ | Method for producing tetraalkylammonium salt solution |
JP2013095673A (en) * | 2011-10-28 | 2013-05-20 | Tokuyama Corp | Method for producing tetraalkylammonium salt solution |
CN103732573A (en) * | 2011-10-28 | 2014-04-16 | 德山株式会社 | Method for producing tetraalkylammonium salt solution |
CN103732573B (en) * | 2011-10-28 | 2016-05-18 | 德山株式会社 | The manufacture method of tetra-allkylammonium salting liquid |
TWI549753B (en) * | 2011-10-28 | 2016-09-21 | Tokuyama Corp | Tetraalkylammonium salt solution |
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JP2011125770A (en) | 2011-06-30 |
CN102686520A (en) | 2012-09-19 |
TW201129414A (en) | 2011-09-01 |
KR20120103633A (en) | 2012-09-19 |
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