WO2023100441A1 - 有機溶媒の不純物除去材及び有機溶媒の不純物除去方法 - Google Patents
有機溶媒の不純物除去材及び有機溶媒の不純物除去方法 Download PDFInfo
- Publication number
- WO2023100441A1 WO2023100441A1 PCT/JP2022/034392 JP2022034392W WO2023100441A1 WO 2023100441 A1 WO2023100441 A1 WO 2023100441A1 JP 2022034392 W JP2022034392 W JP 2022034392W WO 2023100441 A1 WO2023100441 A1 WO 2023100441A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- organic solvent
- removing impurities
- ion exchange
- ppm
- impurities
- 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.)
- Ceased
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Classifications
-
- 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
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/04—Processes using organic exchangers
- B01J41/07—Processes using organic exchangers in the weakly basic 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- 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
- B01J39/05—Processes using organic exchangers in the strongly 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
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/20—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- 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
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/04—Processes using organic exchangers
- B01J41/05—Processes using organic exchangers in the strongly basic 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
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
- B01J41/14—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- 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
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/014—Ion-exchange processes in general; Apparatus therefor in which the adsorbent properties of the ion-exchanger are involved, e.g. recovery of proteins or other high-molecular compounds
Definitions
- the present invention relates to an organic solvent impurity removal material and an organic solvent impurity removal method for removing impurities in an organic solvent used for manufacturing and washing processes of mechanical parts and electronic parts, or for chemical synthesis.
- the ultrapure water production and supply system used in the semiconductor manufacturing process etc. has a cross-flow type ultrafiltration membrane (UF membrane) device for removing fine particles at the end of the subsystem, and the water recovery rate is 90 to 99. %, removing nanometer-sized fine particles.
- UF membrane cross-flow type ultrafiltration membrane
- a mini subsystem is installed as a point-of-use polisher just before the cleaning machine for cleaning semiconductors and electronic materials, and a UF membrane device for removing fine particles is installed at the final stage. It is also being considered to install a UF membrane for removal to remove fine particles of smaller size to a high degree.
- membrane separation means is provided in any of the pretreatment device, primary pure water device, secondary pure water device (subsystem), or recovery device that constitutes the ultrapure water supply device, and amine elution is performed at the subsequent stage. It describes placing a reverse osmosis membrane that has undergone a treatment to reduce the . Although it is possible to remove fine particles with a reverse osmosis membrane, it is not preferable to provide a reverse osmosis membrane for the following reasons. That is, the pressure must be increased to operate the reverse osmosis membrane, and the amount of permeated water is as small as about 1 m 3 /m 2 /day at a pressure of 0.75 MPa.
- the current system using UF membranes has a water volume of 7 m 3 /m 2 /day, which is more than 50 times higher at a pressure of 0.1 MPa. requires a huge film area.
- driving the booster pump raises the risk of generation of new fine particles and metals.
- Patent Document 2 describes that a functional material having an anion functional group or a reverse osmosis membrane is arranged after the UF membrane in the ultrapure water line.
- the purpose of the permeable membrane is to reduce amines, and it is not suitable for removing fine particles having a particle size of 10 nm or less, which is the object of the present invention.
- Patent Document 3 also describes that a reverse osmosis membrane device is provided in front of the UF membrane device at the final stage in the subsystem, but it has the same problem as Patent Document 1 above.
- Patent Document 4 describes removing particles by incorporating a prefilter in a membrane module used in an ultrapure water production line, but the smaller the particle size to be separated, the smaller the water permeability. There is a problem.
- treated water of an electrodeionization device is filtered with a UF membrane filtration device having a filtration membrane not modified with ion exchange groups, and then a membrane with an MF membrane modified with ion exchange groups.
- ion-exchange groups are only cation-exchange groups such as sulfonic acid groups and iminodiacetic acid groups.
- the definition of ion-exchange groups includes anion-exchange groups, there is no description of their types or objects to be removed.
- Patent Document 6 it is described that an anion adsorption membrane device is arranged in the latter stage of the UF membrane device in the subsystem, and experimental results with silica as the removal target are reported. No mention of size. It is generally known that a strong anion exchange group is required when removing ionic silica (Diaion 1 ion exchange resin/synthetic adsorbent manual, Mitsubishi Chemical Corporation, p15), so the patent It is believed that Document 5 also uses a membrane having strong anion exchange groups.
- Patent Document 7 it contains one or more functional groups selected from the group consisting of primary amino groups, secondary amino groups, tertiary amino groups, and quaternary ammonium salts, and has an anion exchange capacity of 0.5.
- 01 to 10 meq/g is described, and this polyketone porous membrane is used in the manufacturing processes of semiconductor/electronic parts manufacturing, biopharmaceutical fields, chemical fields, and food industry fields, and is used for microparticles, gels, and viruses. It is described that impurities such as can be efficiently removed. There is also a description suggesting that it is possible to remove 10 nm fine particles and anion particles smaller than the pore size of the porous membrane.
- Patent Document 7 does not describe the application of this polyketone porous membrane to an ultrapure water production process.
- Patent Document 8 describes the application of such a polyketone porous membrane to an ultrapure water production process, but does not mention the removal of impurities such as fine particles, metals and ions in organic solvents.
- impurities contained in organic solvents are used for the purpose of improving product yields and eliminating the effects of impurities. In particular, it is required to remove fine particles to a high degree.
- the present invention provides an organic solvent impurity removing material and an organic solvent impurity removal material that can highly remove impurities in organic solvents used for manufacturing and cleaning processes of mechanical parts and electronic parts, or for chemical synthesis.
- An object of the present invention is to provide a method for removing impurities from an organic solvent.
- a porous ion exchange resin exhibits high impurity removal performance for organic solvents with a water content of 1,000 ppm or less.
- the present invention was achieved based on such knowledge, and the gist is as follows.
- a removal material for removing impurities from an organic solvent having a water content of 1,000 ppm or less which is characterized by comprising a porous ion exchange resin.
- the porous ion exchange resin has one or more ion exchange groups selected from the group consisting of primary amino groups, secondary amino groups, tertiary amino groups, and quaternary ammonium groups.
- a method for removing impurities from an organic solvent which comprises bringing an organic solvent having a water content of 1,000 ppm or less into contact with the material for removing impurities from an organic solvent according to any one of [1] to [4].
- impurities such as fine particles, metals, and ions can be highly and efficiently removed from organic solvents used for manufacturing and washing processes of mechanical parts and electronic parts, or for chemical synthesis. .
- the organic solvent impurity removing material of the present invention comprises a porous ion exchange resin.
- Porous ion exchange resins have a large specific surface area and are excellent in removing impurities from organic solvents.
- the ion exchange groups of the porous type ion exchange resin include primary amino groups, secondary amino groups, tertiary amino groups, quaternary ammonium groups, carboxyl groups, sulfonic acid groups, phosphoric acid groups, phosphonic acid groups, phosphinic acid groups. group, hydroxyl group, phenol group, pyridine group, amide group, etc., but not limited thereto. These functional groups may be not only H-type and OH-type but also salt-type such as Cl and Na.
- an ion-exchange resin into which at least one or more of these functional groups are introduced may be used, or a plurality of ion-exchange resins into which different ion-exchange groups are introduced may be used to obtain different ion-exchange groups.
- It may be a mixed ion exchange resin having Among these ion-exchange groups, primary amino groups, secondary amino groups, tertiary amino groups, and quaternary ammonium groups are preferred, and quaternary ammonium groups are particularly preferred, from the viewpoint of impurity removal ability.
- the specific surface area of the porous ion-exchange resin is preferably as large as possible from the viewpoint of impurity removal ability, and is preferably 1 m 2 /g or more, particularly 7 m 2 /g or more as a specific surface area measured by mercury porosimetry.
- the specific surface area of the porous ion exchange resin is usually 30 m 2 /g or less from the viewpoint of maintaining strength.
- Types of ion exchange resins include, for example, poly(styrene-divinylbenzene), poly(styrene-ethylstyrene-divinylbenzene), poly((meth)acrylic acid-divinylbenzene), polystyrene having a skeleton of polydivinylbenzene, etc.
- Ion-exchange resins Poly(2,3-dihydroxypropyl methacrylate-ethylene dimethacrylate), poly(hydroxyethyl methacrylate-trimethylolpropane trimethacrylate), poly(meth)acrylic acid ester, etc.
- Ion-exchange resins acrylic ion-exchange resins with a skeleton of polyacrylic ester, etc., acrylic ion-exchange resins with a skeleton of polyacrylamide, etc.; polyvinyl alcohol-based resins with a skeleton of poly(vinyl alcohol-triallyl isocyanurate), etc.
- Ion-exchange resins Polyvinyl ether-based ion-exchange resins having a skeleton of poly(2-hydroxyethyl vinyl ether-diethylene glycol vinyl ether), poly(chloroethyl vinyl ether-triethylene glycol vinyl ether), etc. can be mentioned.
- polystyrene-based ion-exchange resins and acrylic-based ion-exchange resins are preferred, and polystyrene-based ion-exchange resins are particularly preferred, since they are often used industrially.
- Impurities in an organic solvent to be removed by the impurity removing material of the present invention include various inorganic fine particles, organic fine particles, metal fine particles, ions, gels, and viruses. It is effective for removing fine particles, especially silica fine particles.
- the impurity concentration in the organic solvent is not particularly limited, but is usually about 1 to 1,000 ppm.
- the impurity-removing material In order to bring the impurity-removing material into contact with the organic solvent, the impurity-removing material is placed in a container containing the organic solvent and immersed in the container, or the organic solvent is passed through a column containing the impurity-removing material.
- the impurity-removing material include, but are not limited to.
- the organic solvent to be treated in the present invention is not particularly limited, but representative ones include the following.
- Alcohols such as methanol, ethanol, and isopropyl alcohol; Halogenated hydrocarbons such as dichlorobenzene, o-, m-, p-dichlorobenzene, o-, m-, p-chlorotoluene; ethers such as ethyl ether; epoxies such as PO and BO; Hydrocarbons such as cyclohexane, benzene, toluene and xylene; Ketones such as acetone, MEK and MIBK; Esters such as ethyl acetate, n-propyl, iso-propyl, n-butyl, sec-butyl and tert-butyl; N-methyl-2-pyrrolidone (NMP); a mixed solvent of two or more of the above organic solvents.
- Halogenated hydrocarbons such as dichlorobenzene, o-, m-, p-dichlorobenzen
- the present invention is particularly suitable for treating organic solvents used in semiconductor manufacturing processes, such as isopropyl alcohol (IPA) and N-methyl-2-pyrrolidone (NMP).
- organic solvents used in semiconductor manufacturing processes such as isopropyl alcohol (IPA) and N-methyl-2-pyrrolidone (NMP).
- the present invention is characterized in that such an organic solvent having a water content of 1,000 ppm or less is brought into contact with the impurity removing material.
- the effect of removing impurities according to the present invention cannot be obtained if the water content of the organic solvent to be treated exceeds 1,000 ppm.
- the water content of the organic solvent may be 1,000 ppm or less, but may be 500 ppm or less.
- the lower limit of the water content of the organic solvent is about 50 ppm.
- HPA512L "Diaion (registered trademark) HPA512L” manufactured by Mitsubishi Chemical Corporation
- Highly porous anion exchange resin Skeleton Poly(styrene-ethylstyrene-divinylbenzene) Ion exchange group: trimethylammonium group Specific surface area: 15 m 2 /g (measured by mercury porosimetry)
- KR-FA "KR-FA” manufactured by Kurita Water Industries Ltd.
- Organic solvent isopropyl alcohol (EL grade IPA for the electronics industry manufactured by Kanto Chemical Co., Ltd.)
- Organic solvent water content 50,000 to 70,000 ppm, 1,000 ppm or less (measured by Karl Fischer method)
- Model fine particles Silica fine particles "sicastar” manufactured by Core Front (particle diameter 30 nm)
- Water for adjusting moisture content ultrapure water (specific resistance of 18.2 M ⁇ cm or more)
- Example 1 Comparative Examples 1 to 3
- IPA adjusted to the water content shown in Table 1 was treated with the impurity removing material shown in Table 1, and the silica fine particle removal rate was determined.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
ポーラス型のイオン交換樹脂は比表面積が大きく、有機溶媒の不純物除去能に優れる。
これらのイオン交換基のうち、不純物除去能の観点から、1級アミノ基、2級アミノ基、3級アミノ基、4級アンモニウム基が好ましく、4級アンモニウム基が特に好ましい。
HPA512L:三菱ケミカル株式会社製
「ダイヤイオン(登録商標)HPA512L」
ハイポーラス型アニオン交換樹脂
骨格:ポリ(スチレン-エチルスチレン-ジビニルベンゼン)
イオン交換基:トリメチルアンモニウム基
比表面積:15m2/g(水銀圧入法で測定)
KR-FA:栗田工業株式会社製
「KR-FA」
ゲル型アニオン交換樹脂
骨格:ポリ(スチレン-エチルスチレン-ジビニルベンゼン)
イオン交換基:トリメチルアンモニウム基
比表面積:0.2m2/g(水銀圧入法で測定)
有機溶媒:イソプロピルアルコール(関東化学社製電子工業用ELグレードIPA)
有機溶媒含水率:50,000~70,000ppm、1,000ppm以下(カールフィッシャー法により測定)
モデル微粒子:コアフロント社製シリカ微粒子「sicastar」(粒子径30nm)
含水率調整用水:超純水(比抵抗18.2MΩ・cm以上)
シリカ微粒子50ppmを含むイソプロピルアルコール100mLに不純物除去材10gを浸漬させ、30分間振盪撹拌し、除去操作を行った。その後、イソプロピルアルコールをサンプリングし、モリブデン青吸光光度法によってイソプロピルアルコール中のシリカ濃度を測定した。除去操作前後のイソプロピルアルコール中のシリカ濃度から、シリカ微粒子除去率を算出した。
表1に示す含水率に調整したIPAを表1に示す不純物除去材で処理し、シリカ微粒子除去率を求め、結果を表1に示した。
本出願は、2021年12月1日付で出願された日本特許出願2021-195467に基づいており、その全体が引用により援用される。
Claims (6)
- 含水率1,000ppm以下の有機溶媒から不純物を除去するための除去材であって、ポーラス型のイオン交換樹脂よりなることを特徴とする有機溶媒の不純物除去材。
- 請求項1において、前記ポーラス型のイオン交換樹脂が、イオン交換基として、1級アミノ基、2級アミノ基、3級アミノ基、及び4級アンモニウム基からなる群から選ばれる1つ以上の官能基を有することを特徴とする有機溶媒の不純物除去材。
- 請求項1又は2において、前記ポーラス型のイオン交換樹脂の比表面積が1m2/g以上であることを特徴とする有機溶媒の不純物除去材。
- 請求項1ないし3のいずれか1項において、前記不純物が、粒子径30nm以下のシリカ微粒子であることを特徴とする有機溶媒の不純物除去材。
- 請求項1ないし4のいずれか1項に記載の有機溶媒の不純物除去材に、含水率1,000ppm以下の有機溶媒を接触させることを特徴とする有機溶媒の不純物除去方法。
- 含水率が1,000ppmを超える有機溶媒を脱水処理して含水率1,000ppm以下とする脱水工程と、脱水された有機溶媒を請求項1ないし4のいずれか1項に記載の有機溶媒の不純物除去材に接着させる不純物除去工程とを有する有機溶媒の不純物除去方法。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/713,695 US20250025869A1 (en) | 2021-12-01 | 2022-09-14 | Material for removing impurities in organic solvent and method for removing impurities in organic solvent |
| CN202280077437.8A CN118284468A (zh) | 2021-12-01 | 2022-09-14 | 有机溶剂的不纯物除去材料及有机溶剂的不纯物除去方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-195467 | 2021-12-01 | ||
| JP2021195467A JP7248090B1 (ja) | 2021-12-01 | 2021-12-01 | 有機溶媒の不純物除去方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023100441A1 true WO2023100441A1 (ja) | 2023-06-08 |
Family
ID=85726025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/034392 Ceased WO2023100441A1 (ja) | 2021-12-01 | 2022-09-14 | 有機溶媒の不純物除去材及び有機溶媒の不純物除去方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250025869A1 (ja) |
| JP (1) | JP7248090B1 (ja) |
| CN (1) | CN118284468A (ja) |
| TW (1) | TW202322892A (ja) |
| WO (1) | WO2023100441A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60186522A (ja) * | 1984-03-07 | 1985-09-24 | Sumitomo Bakelite Co Ltd | エポキシ化合物の精製方法 |
| JP2004181352A (ja) * | 2002-12-03 | 2004-07-02 | Japan Organo Co Ltd | 非水液状物の精製方法 |
| JP2010235653A (ja) * | 2009-03-30 | 2010-10-21 | Nippon Soda Co Ltd | 重合体の製造方法 |
| WO2019187580A1 (ja) * | 2018-03-30 | 2019-10-03 | 栗田工業株式会社 | 微粒子除去膜、微粒子除去装置及び微粒子除去方法 |
| JP2020157249A (ja) * | 2019-03-27 | 2020-10-01 | 栗田工業株式会社 | 有機溶媒の処理方法及び処理材 |
-
2021
- 2021-12-01 JP JP2021195467A patent/JP7248090B1/ja active Active
-
2022
- 2022-09-14 WO PCT/JP2022/034392 patent/WO2023100441A1/ja not_active Ceased
- 2022-09-14 US US18/713,695 patent/US20250025869A1/en active Pending
- 2022-09-14 CN CN202280077437.8A patent/CN118284468A/zh active Pending
- 2022-09-28 TW TW111136835A patent/TW202322892A/zh unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60186522A (ja) * | 1984-03-07 | 1985-09-24 | Sumitomo Bakelite Co Ltd | エポキシ化合物の精製方法 |
| JP2004181352A (ja) * | 2002-12-03 | 2004-07-02 | Japan Organo Co Ltd | 非水液状物の精製方法 |
| JP2010235653A (ja) * | 2009-03-30 | 2010-10-21 | Nippon Soda Co Ltd | 重合体の製造方法 |
| WO2019187580A1 (ja) * | 2018-03-30 | 2019-10-03 | 栗田工業株式会社 | 微粒子除去膜、微粒子除去装置及び微粒子除去方法 |
| JP2020157249A (ja) * | 2019-03-27 | 2020-10-01 | 栗田工業株式会社 | 有機溶媒の処理方法及び処理材 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7248090B1 (ja) | 2023-03-29 |
| TW202322892A (zh) | 2023-06-16 |
| JP2023081615A (ja) | 2023-06-13 |
| US20250025869A1 (en) | 2025-01-23 |
| CN118284468A (zh) | 2024-07-02 |
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