WO2016117463A1 - フッ素化炭化水素化合物の精製方法 - Google Patents
フッ素化炭化水素化合物の精製方法 Download PDFInfo
- Publication number
- WO2016117463A1 WO2016117463A1 PCT/JP2016/051111 JP2016051111W WO2016117463A1 WO 2016117463 A1 WO2016117463 A1 WO 2016117463A1 JP 2016051111 W JP2016051111 W JP 2016051111W WO 2016117463 A1 WO2016117463 A1 WO 2016117463A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluorinated hydrocarbon
- hydrocarbon compound
- exchange resin
- ion exchange
- purity
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/389—Separation; Purification; Stabilisation; Use of additives by adsorption on solids
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C19/00—Acyclic saturated compounds containing halogen atoms
- C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
Definitions
- the present invention relates to a method for purifying a fluorinated hydrocarbon compound.
- a fluorinated hydrocarbon compound has been used as a dry etching gas for manufacturing a semiconductor because it has excellent etching selectivity with respect to a material to be etched.
- a fluorinated hydrocarbon compound used in the semiconductor manufacturing field or the like is required to remove moisture in order to achieve high etching selectivity.
- a method for dehydrating a fluorinated hydrocarbon compound a method using a molecular sieve (hereinafter sometimes referred to as “MS”) which is a general dehydrating agent is known.
- MS molecular sieve
- Patent Document 1 discloses that moisture is removed by contacting a crude product of a specific fluorinated hydrocarbon compound with a hydrous metal of synthetic crystal aluminosilicate having an average pore diameter of 3 mm. A method for purifying a fluorinated hydrocarbon compound is described.
- Patent Document 1 discloses a high-purity fluorinated carbonization that can sufficiently remove water by using the purification method and that suppresses the formation of a deHF product by decomposition of the fluorinated hydrocarbon compound. It is described that a hydrogen compound can be obtained.
- the present invention has been made in view of the above-described prior art, and purification of a fluorinated hydrocarbon compound capable of sufficiently removing moisture without causing a decrease in purity due to decomposition of the fluorinated hydrocarbon compound. It aims to provide a method.
- the present inventor diligently studied a method for purifying fluorinated hydrocarbon compounds. As a result, by bringing a crude product of a saturated fluorinated hydrocarbon compound having 4 or 5 carbon atoms into contact with a specific ion exchange resin, sufficient water content can be obtained without causing a decrease in purity due to decomposition of the fluorinated hydrocarbon compound. Has been found to be able to be removed, and the present invention has been completed.
- the following purification methods [1] to [3] are provided.
- [1] It is characterized in that moisture contained in the crude product is removed by bringing a crude product of a saturated fluorinated hydrocarbon compound having 4 or 5 carbon atoms into contact with a salt-type strongly acidic ion exchange resin.
- a method for purifying a fluorinated hydrocarbon compound is a compound represented by the following formula (1) or (2).
- a method for purifying a fluorinated hydrocarbon compound capable of sufficiently removing water without causing a decrease in purity due to decomposition of the fluorinated hydrocarbon compound.
- the purification method of the present invention is to remove water contained in the crude product by bringing the crude product of a saturated fluorinated hydrocarbon compound having 4 or 5 carbon atoms into contact with a salt-type strongly acidic ion exchange resin. It is characterized by.
- Examples of the saturated fluorinated hydrocarbon compound having 4 or 5 carbon atoms contained in the crude product include compounds represented by the following formula (1) or (2).
- a and b represent a positive integer, and a + b is 10 or less. Among these, a ⁇ b is preferable because it is suitable as a dry etching gas.
- the fluorinated hydrocarbon compound represented by the formula (1) include C 4 H 9 F, C 4 H 8 F 2 , C 4 H 7 F 3 , C 4 H 6 F 4 , and C 4 H 5 F 5 .
- c and d represent a positive integer, and c + d is 12 or less. Among these, c ⁇ d is preferable because it is suitable as a dry etching gas.
- the fluorinated hydrocarbon compound represented by the formula (2) include C 5 H 11 F, C 5 H 10 F 2 , C 5 H 9 F 3 , C 5 H 8 F 4 , C 5 H 7 F 5 , C A chain saturated fluorinated hydrocarbon compound having 5 carbon atoms represented by 5 H 6 F 6 ; represented by C 5 H 9 F, C 5 H 8 F 2 , C 5 H 7 F 3 , C 5 H 6 F 4 And cyclic saturated fluorinated hydrocarbon compounds having 5 carbon atoms;
- the fluorinated hydrocarbon compound having 4 or 5 carbon atoms a chain saturated fluorinated hydrocarbon compound having 4 or 5 carbon atoms is preferable.
- the chain saturated fluorinated hydrocarbon compound having 4 or 5 carbon atoms include C 4 H 9 such as 1-fluorobutane, 2-fluorobutane, 1-fluoro-2-methylpropane and 2-fluoro-2-methylpropane.
- Compound represented by F Compound represented by C 4 H 8 F 2 such as 1,4-difluorobutane, 2,2-difluorobutane, 2,3-difluorobutane; 1,1,2-trifluorobutane
- a compound represented by C 4 H 7 F 3 such as 1
- a compound represented by C 4 H 6 F 4 such as 1,1,1,2-tetrafluorobutane
- compounds represented by C 4 H 5 F 5 such as perfluorobutane; 1-fluoro-pentane, 2-fluoro-pentane, 3-fluoro-pentane, 1-fluoro-2-methylbutane, 1-fluoro-3-methylbutane, 2-full B-2-methylbutane, 2-fluoro-3-methylbutane, C 5 H 11 compound represented by F and 1-fluoro-2,2-dimethyl-propane; 1,5-difluoro-pentane, 2,4-difluoro-pentane A compound represented by
- the purity of the fluorinated hydrocarbon compound in the crude product used in the present invention is usually 99.0 to 99.9%, preferably 99.5 to 99.9% on a volume basis.
- the amount of water contained in the crude product is usually 100 to 5000 ppm, preferably 100 to 3000 ppm, on a volume basis.
- the purity of the fluorinated hydrocarbon compound in the crude product and the amount of water in the crude product are within the above ranges, a high-purity fluorinated hydrocarbon compound suitable as a dry etching gas can be efficiently produced.
- the purity of the fluorinated hydrocarbon compound is a value calculated from a peak area by performing gas chromatography using a flame ionization detector (FID) as a detector.
- the amount of water is a value measured using FT-IR.
- the crude product used in the present invention can be produced and obtained by a known production method.
- a crude product of 2-fluorobutane is disclosed in J. Org. Org. Chem, 44 (22), 3872 (1987), and can be obtained and obtained.
- what is marketed can also be used as a crude product of a fluorinated hydrocarbon compound.
- the salt-type strongly acidic ion exchange resin is used as a dehydrating agent.
- the strongly acidic ion exchange resin refers to an ion exchange resin having a strongly acidic functional group.
- the strongly acidic functional group means a protonated group having a pKa of 1 or less at 25 ° C., and examples thereof include a sulfo group (an atomic group represented by —SO 3 H).
- Examples of the strongly acidic ion exchange resin include a copolymer of styrene sulfonic acid and divinylbenzene.
- water can be sufficiently removed without causing a decrease in purity due to decomposition of the fluorinated hydrocarbon compound.
- the strongly acidic ion exchange resin a salt type (that is, neutralized state) is used.
- a salt-type strongly acidic ion exchange resin water can be sufficiently removed without causing a decrease in purity due to decomposition of the fluorinated hydrocarbon compound.
- the cation contained in the salt-type strongly acidic ion exchange resin is not particularly limited, and examples thereof include sodium ion, potassium ion, magnesium ion, calcium ion, barium ion, and ammonium ion. Of these, sodium ion or calcium ion is preferable.
- the salt-type strongly acidic ion exchange resin is more preferably a resin having a cation selected from the group consisting of sodium ions and calcium ions and a sulfo group.
- a gel type resin As the form of the strongly acidic ion exchange resin, a gel type resin, a porous type resin, a high porous type resin and the like are known, and any of them can be used in the present invention. Among these, a gel type resin is preferable because dehydration can be performed more efficiently. Further, the effective diameter, particle size range, degree of crosslinking, etc. of the ion exchange resin are not particularly limited and can be appropriately determined according to the purpose.
- the strongly acidic ion exchange resin is preferably subjected to a drying treatment until its weight reaches a certain value.
- drying conditions are not specifically limited,
- the strongly acidic ion exchange resin suitable for the method of this invention can be obtained by drying with hot air at 120 degreeC for 3 hours.
- the purification method of the present invention is to remove moisture contained in the crude product by bringing the crude product into contact with a salt-type strongly acidic ion exchange resin.
- Examples of the method of bringing the crude product into contact with the salt-type strongly acidic ion exchange resin include, for example, (1) an immersion method in which the crude product is placed in a container containing the salt-type strong acid ion exchange resin, (2) A distribution method in which a crude product is circulated through a tube filled with a salt-type strongly acidic ion exchange resin, and both are brought into contact with each other. Either a dipping method or a distribution method may be used, and it may be appropriately selected according to the purpose.
- the amount of salt-type strongly acidic ion exchange resin used is preferably 5 to 80 parts by weight, more preferably 10 to 50 parts by weight with respect to 100 parts by weight of the crude product. If the amount of the salt-type strongly acidic ion exchange resin used is too small, the dehydration ability tends to decrease. On the other hand, even if the use amount of the salt-type strongly acidic ion exchange resin is excessively increased, it is difficult to obtain an effect commensurate with it, and the productivity may be lowered.
- the temperature at which the crude product is brought into contact with the salt-type strongly acidic ion exchange resin varies depending on the boiling point of the fluorinated hydrocarbon compound to be used. If the temperature is higher than the boiling point, the yield may be reduced. Therefore, it is preferable to contact at a temperature lower than the boiling point.
- the contact temperature is preferably in the range of 0 to 50 ° C., more preferably in the range of 0 to 30 ° C. from the viewpoint of productivity.
- the time for bringing the crude product into contact with the salt-type strongly acidic ion exchange resin is usually 1 to 72 hours.
- a deHF product is generated by a decomposition reaction.
- (E) -2-butene, (Z) -2-butene, and 1-butene may be mentioned as the deHF product of 2-fluorobutane.
- the purity of the fluorinated hydrocarbon compound in the purified product obtained by the method of the present invention is usually 99.0% or more, preferably 99.9% or more on a volume basis. Moreover, this purity is not lower than the purity in the crude product.
- the amount of water contained in the purified product is usually 50 ppm or less, preferably 30 ppm or less, more preferably 20 ppm or less on a volume basis.
- water can be sufficiently removed without causing a decrease in purity due to decomposition of the fluorinated hydrocarbon compound.
- the purified product of the fluorinated hydrocarbon compound obtained by the method of the present invention can be suitably used as a dry etching gas for semiconductor production.
- the dehydrating agents used are as follows.
- Ion exchange resin (1) manufactured by Mitsubishi Chemical Corporation, Diaion SK1B (gel type, sulfo group, sodium ion, crosslinking degree 8%)
- Ion exchange resin (2) Made by Mitsubishi Chemical Co., Ltd., Diaion SK1B-H (gel type, sulfo group, hydrogen ion, crosslinking degree 8%), with the functional group counter ion changed to calcium ion by the prescribed treatment
- Exchange resin (3) manufactured by Mitsubishi Chemical Corporation, Diaion SK104 (gel type, sulfo group, sodium ion, crosslinking degree 4%)
- the ion exchange resins (1) to (6) used were dried with hot air at 120 ° C. for 3 hours.
- the molecular sieve (1) used was dried with hot air at 450 ° C. for 3 hours.
- the water content in the crude product or purified product was determined by the FT-IR method using the following apparatus. Measuring apparatus: IG-1000 (cell length 10 m) manufactured by Otsuka Electronics Co., Ltd.
- the purified product was evaluated according to the following criteria. ⁇ : Water content in the purified product is less than 100 ppm. ⁇ : Water content in the purified product is 100 ppm or more and less than 500 ppm. X: The water content in the purified product is 500 ppm or more.
- Example 1 In a glass screw bottle, 10.0 g of a crude product whose moisture content and purity of 2-fluorobutane were measured was placed, and 1.0 g of ion exchange resin (1) was further immersed therein. This was allowed to stand at 23 ° C. for 24 hours, and then the water content in the purified product and the purity of 2-fluorobutane were measured. The measurement results are shown in Table 1.
- Example 2 In Example 1, except that the ion exchange resin (2) was used instead of the ion exchange resin (1), the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product and 2- The purity of fluorobutane was measured. The measurement results are shown in Table 1.
- Example 3 In Example 1, except that the ion exchange resin (3) was used instead of the ion exchange resin (1), the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product and 2- The purity of fluorobutane was measured. The measurement results are shown in Table 1.
- Example 4 In Example 1, except that the ion exchange resin (4) was used instead of the ion exchange resin (1), the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product and 2- The purity of fluorobutane was measured. The measurement results are shown in Table 1.
- Example 5 In Example 1, the immersion treatment was performed in the same manner as in Example 1 except that 2,2-difluorobutane was used instead of 2-fluorobutane, and the moisture content in the purified product and 2,2- The purity of difluorobutane was measured. The measurement results are shown in Table 1.
- Example 6 In Example 4, except that 2,2-difluorobutane was used instead of 2-fluorobutane, the immersion treatment was performed in the same manner as in Example 4, and the water content in the purified product and 2,2- The purity of difluorobutane was measured. The measurement results are shown in Table 1.
- Example 7 In Example 1, except that 2-fluoropentane was used instead of 2-fluorobutane, the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product and 2,2-difluorobutane were determined. The purity of was measured. The measurement results are shown in Table 1.
- Example 8 In Example 4, except that 2-fluoropentane was used instead of 2-fluorobutane, the immersion treatment was performed in the same manner as in Example 4, and the water content in the purified product and 2,2-difluorobutane were determined. The purity of was measured. The measurement results are shown in Table 1.
- Example 9 In Example 1, except that 1,1,1,3,3-pentafluorobutane was used instead of 2-fluorobutane, the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product was contained. The amount and the purity of 1,1,1,3,3-pentafluorobutane were measured. The measurement results are shown in Table 1.
- Example 10 In Example 4, except that 1,1,1,3,3-pentafluorobutane was used in place of 2-fluorobutane, the immersion treatment was performed in the same manner as in Example 4, and the water content in the purified product was contained. The amount and the purity of 1,1,1,3,3-pentafluorobutane were measured. The measurement results are shown in Table 1.
- Example 1 In Example 1, except that the ion exchange resin (5) was used instead of the ion exchange resin (1), the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product and 2- The purity of fluorobutane was measured. The measurement results are shown in Table 1.
- Example 2 In Example 1, except that the ion exchange resin (6) was used instead of the ion exchange resin (1), the immersion treatment was performed in the same manner as in Example 1, and the water content in the purified product and 2- The purity of fluorobutane was measured. The measurement results are shown in Table 1.
- Example 3 In Example 1, immersion treatment was performed in the same manner as in Example 1 except that the molecular sieve (1) was used instead of the ion exchange resin (1), and the water content in the purified product and 2-fluoro The purity of butane was measured. The measurement results are shown in Table 1.
- Comparative Example 4 In Comparative Example 3, the immersion treatment was performed in the same manner as in Comparative Example 3 except that 2,2-difluorobutane was used instead of 2-fluorobutane, and the water content in the purified product and 2,2- The purity of difluorobutane was measured. The measurement results are shown in Table 1.
- Comparative Example 5 In Comparative Example 3, the immersion treatment was performed in the same manner as in Comparative Example 3 except that 2-fluoropentane was used instead of 2-fluorobutane, and the water content in the purified product and the purity of 2-fluoropentane were determined. Was measured. The measurement results are shown in Table 1.
- Comparative Example 6 In Comparative Example 3, the immersion treatment was performed in the same manner as in Comparative Example 3 except that 1,1,1,3,3-pentafluorobutane was used instead of 2-fluorobutane, and the moisture content in the purified product was The amount and the purity of 1,1,1,3,3-pentafluorobutane were measured. The measurement results are shown in Table 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
半導体製造分野等で使用されるフッ素化炭化水素化合物は、高いエッチング選択性を実現するために、水分を除去することが求められる。
従来、フッ素化炭化水素化合物の脱水方法としては、一般的な脱水剤であるモレキュラーシーブ(以下、「MS」ということがある。)を用いる方法が知られている。
しかし、フッ素化炭化水素化合物は、MSと接触すると、異性化や分解反応が起こりやすく、当該化合物の純度が低下するという問題があった。
しかしながら、近年のエッチング技術の向上に伴い、さらに高純度のフッ素化炭化水素化合物が要望されていた。
本発明は、上記した従来技術に鑑みてなされたものであり、フッ素化炭化水素化合物の分解による純度低下を引き起こすことなく、かつ、十分に水分を除去することができるフッ素化炭化水素化合物の精製方法を提供することを目的とする。
〔1〕炭素数4又は5の飽和フッ素化炭化水素化合物の粗製物と、塩型の強酸性イオン交換樹脂とを接触させることにより、前記粗製物に含まれる水分を除去することを特徴とするフッ素化炭化水素化合物の精製方法。
〔2〕炭素数4又は5の飽和フッ素化炭化水素化合物が、下記式(1)又は(2)で示される化合物である、〔1〕に記載の精製方法。
〔3〕塩型の強酸性イオン交換樹脂が、ナトリウムイオン及びカルシウムイオンからなる群から選ばれる陽イオンと、スルホ基を有する樹脂である、〔1〕又は〔2〕に記載の精製方法。
本発明に用いる炭素数4又は5の飽和フッ素化炭化水素化合物の粗製物(以下、「粗製物」ということがある。)は、本発明の精製方法における処理対象である。
式(1)で示されるフッ素化炭化水素化合物としては、C4H9F、C4H8F2、C4H7F3、C4H6F4、C4H5F5で表される炭素数4の鎖状飽和フッ素化炭化水素化合物;C4H7F、C4H6F2、C4H5F3で表される炭素数4の環状飽和フッ素化炭化水素化合物;等が挙げられる。
式(2)で示されるフッ素化炭化水素化合物としては、C5H11F、C5H10F2、C5H9F3、C5H8F4、C5H7F5、C5H6F6で表される炭素数5の鎖状飽和フッ素化炭化水素化合物;C5H9F、C5H8F2、C5H7F3、C5H6F4で表される炭素数5の環状飽和フッ素化炭化水素化合物;等が挙げられる。
炭素数4又は5の鎖状飽和フッ素化炭化水素化合物としては、1-フルオロブタン、2-フルオロブタン、1-フルオロ-2-メチルプロパン、2-フルオロ-2-メチルプロパン等のC4H9Fで表される化合物;1,4-ジフルオロブタン、2,2-ジフルオロブタン、2,3-ジフルオロブタン等のC4H8F2で表される化合物;1,1,2-トリフルオロブタン等のC4H7F3で表される化合物;1,1,1,2-テトラフルオロブタン等のC4H6F4で表される化合物;1,1,1,3,3-ペンタフルオロブタン等のC4H5F5で表される化合物;1-フルオロペンタン、2-フルオロペンタン、3-フルオロペンタン、1-フルオロ-2-メチルブタン、1-フルオロ-3-メチルブタン、2-フルオロ-2-メチルブタン、2-フルオロ-3-メチルブタン、1-フルオロ-2,2-ジメチルプロパン等のC5H11Fで表される化合物;1,5-ジフルオロペンタン、2,4-ジフルオロペンタン、3,3-ジフルオロペンタン等のC5H10F2で表される化合物;1,1,1-トリフルオロペンタン等のC5H9F3で表される化合物;1,1,1,2-テトラフルオロペンタン等のC5H8F4で表される化合物;等が挙げられる。
また、粗製物に含まれる水分量は、体積基準で、通常100~5000ppm、好ましくは100~3000ppmである。
粗製物におけるフッ素化炭化水素化合物の純度や、粗製物中の水分量が上記範囲内であることで、ドライエッチングガスとして適する高純度のフッ素化炭化水素化合物を効率よく製造することができる。
本発明において、フッ素化炭化水素化合物の純度は、水素炎イオン化検出器(FID)を検出器としたガスクロマトグラフィーを行い、ピーク面積から算出された値である。また、水分量は、FT-IRを用いて測定された値である。
本発明において、塩型の強酸性イオン交換樹脂は、脱水剤として用いられる。強酸性イオン交換樹脂とは、強酸性の官能基を有するイオン交換樹脂をいう。強酸性の官能基とは、プロトン化した基のpKaが、25℃で1以下のものをいい、例えば、スルホ基(-SO3Hで表される原子団)が挙げられる。強酸性イオン交換樹脂としては、例えば、スチレンスルホン酸とジビニルベンゼンの共重合体等が挙げられる。
本発明においては、脱水剤として強酸性イオン交換樹脂を用いることで、フッ素化炭化水素化合物の分解による純度低下を引き起こすことなく、十分に水分を除去することができる。
塩型の強酸性イオン交換樹脂に含まれる陽イオンは特に限定されず、例えば、ナトリウムイオン、カリウムイオン、マグネシウムイオン、カルシウムイオン、バリウムイオン、アンモニウムイオン等が挙げられる。なかでも、ナトリウムイオン又はカルシウムイオンが好ましい。
本発明においては、塩型の強酸性イオン交換樹脂が、ナトリウムイオン及びカルシウムイオンからなる群から選ばれる陽イオンと、スルホ基を有する樹脂であることがより好ましい。
また、イオン交換樹脂の有効径、粒度範囲、架橋度等は特に限定されず、目的に応じて適宜決定することができる。
本発明の精製方法は、前記粗製物と、塩型の強酸性イオン交換樹脂とを接触させることにより、粗製物に含まれる水分を除去するものである。
例えば、2-フルオロブタンの脱HF化物としては、(E)-2-ブテン、(Z)-2-ブテン、1-ブテンが挙げられる。
しかしながら、本発明の精製方法によれば、フッ素化炭化水素化合物の分解が抑えられるため、脱HF化物は生成せず、また、純度が低下することもない。
本発明の方法により得られる精製物におけるフッ素化炭化水素化合物の純度は、体積基準で、通常99.0%以上、好ましくは99.9%以上である。また、この純度は、粗製物における純度よりも低いものではない。
本発明の方法により得られたフッ素化炭化水素化合物の精製物は、半導体製造用ドライエッチングガスとして好適に用いることができる。
イオン交換樹脂(1):三菱化学社製、ダイヤイオンSK1B(ゲル型、スルホ基、ナトリウムイオン、架橋度8%)
イオン交換樹脂(2):三菱化学社製、ダイヤイオンSK1B-H(ゲル型、スルホ基、水素イオン、架橋度8%)を所定の処理により官能基の対イオンをカルシウムイオンに変更したもの
イオン交換樹脂(3):三菱化学社製、ダイヤイオンSK104(ゲル型、スルホ基、ナトリウムイオン、架橋度4%)
イオン交換樹脂(4):三菱化学社製、ダイヤイオンPK216(ポーラス型、スルホ基、ナトリウムイオン、架橋度8%)
イオン交換樹脂(5):三菱化学社製、ダイヤイオンSK1BH(ゲル型、スルホ基、水素イオン、架橋度8%)
イオン交換樹脂(6):三菱化学社製、ダイヤイオンWK40L(ポーラス型、カルボキシル基、水素イオン)を所定の処理により官能基の対イオンをカルシウムイオンに変更させたもの
モレキュラーシーブ(1):MS3A(和光純薬工業社製 cat.No.133-08645)
なお、イオン交換樹脂(1)~(6)は、120℃で3時間、熱風乾燥したものを用いた。
また、モレキュラーシーブ(1)は、450℃で3時間、熱風乾燥したものを用いた。
粗製物又は精製物中の水分含有量は、下記の装置を用いてFT-IR法より求めた。
測定装置:大塚電子社製、IG-1000(セル長10m)
また、精製物(脱水剤を浸漬させてから24時間後のサンプル)について、以下の基準で評価した。
○:精製物中の水分量が100ppm未満である。
△:精製物中の水分量が100ppm以上500ppm未満である。
×:精製物中の水分量が500ppm以上である。
粗製物又は精製物におけるフッ素化炭化水素化合物の純度は、下記の装置を用いてガスクロマトグラフィー法により求めた。
測定装置:アジレント・テクノロジー社製、Agilent(登録商標)7890-A
カラム:ジーエルサイエンス社製、Inert Cap-1(長さ60m×内径250μm×膜厚1.5μm)
検出器:FID
また、この実験結果を基に、以下の基準で精製方法を評価した。
○:精製物において、粗製物の純度が維持されている。
×:精製物の純度が、粗製物の純度を下回っている。
ガラススクリュー瓶に、水分含有量、及び2-フルオロブタンの純度を測定した粗製物10.0gを入れ、さらに、イオン交換樹脂(1)1.0gを浸漬させた。このものを23℃で24時間静置した後、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、イオン交換樹脂(1)の代わりにイオン交換樹脂(2)を用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、イオン交換樹脂(1)の代わりにイオン交換樹脂(3)を用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、イオン交換樹脂(1)の代わりにイオン交換樹脂(4)を用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、2-フルオロブタンの代わりに2,2-ジフルオロブタンを用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2,2-ジフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例4において、2-フルオロブタンの代わりに2,2-ジフルオロブタンを用いたこと以外は、実施例4と同様にして浸漬処理を行い、精製物中の水分含有量、及び2,2-ジフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、2-フルオロブタンの代わりに2-フルオロペンタンを用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2,2-ジフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例4において、2-フルオロブタンの代わりに2-フルオロペンタンを用いたこと以外は、実施例4と同様にして浸漬処理を行い、精製物中の水分含有量、及び2,2-ジフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、2-フルオロブタンの代わりに1,1,1,3,3-ペンタフルオロブタンを用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び1,1,1,3,3-ペンタフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例4において、2-フルオロブタンの代わりに1,1,1,3,3-ペンタフルオロブタンを用いたこと以外は、実施例4と同様にして浸漬処理を行い、精製物中の水分含有量、及び1,1,1,3,3-ペンタフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、イオン交換樹脂(1)の代わりにイオン交換樹脂(5)を用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、イオン交換樹脂(1)の代わりにイオン交換樹脂(6)を用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1において、イオン交換樹脂(1)の代わりにモレキュラーシーブ(1)を用いたこと以外は、実施例1と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロブタンの純度を測定した。測定結果を第1表に示す。
比較例3において、2-フルオロブタンの代わりに2,2-ジフルオロブタンを用いたこと以外は、比較例3と同様にして浸漬処理を行い、精製物中の水分含有量、及び2,2-ジフルオロブタンの純度を測定した。測定結果を第1表に示す。
比較例3において、2-フルオロブタンの代わりに2-フルオロペンタンを用いたこと以外は、比較例3と同様にして浸漬処理を行い、精製物中の水分含有量、及び2-フルオロペンタンの純度を測定した。測定結果を第1表に示す。
比較例3において、2-フルオロブタンの代わりに1,1,1,3,3-ペンタフルオロブタンを用いたこと以外は、比較例3と同様にして浸漬処理を行い、精製物中の水分含有量、及び1,1,1,3,3-ペンタフルオロブタンの純度を測定した。測定結果を第1表に示す。
実施例1~10においては、脱水処理中のフッ素化炭化水素化合物の分解を抑制することができている。この結果、水分含有量が低く、かつ、フッ素化炭化水素化合物の純度が高い精製物が得られている。
一方、H+型の強酸性イオン交換樹脂を用いた比較例1では、水分含有量を十分に低下させることができていない。また、精製物の純度も低下している。
また、弱酸性型イオン交換樹脂を用いた比較例2、モレキュラーシーブを用いた比較例3、4、5、6においては、精製物の純度が大きく低下している。
Claims (3)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016570604A JPWO2016117463A1 (ja) | 2015-01-22 | 2016-01-15 | フッ素化炭化水素化合物の精製方法 |
CN201680004179.5A CN107108411B (zh) | 2015-01-22 | 2016-01-15 | 氟化烃化合物的提纯方法 |
US15/541,480 US10017437B2 (en) | 2015-01-22 | 2016-01-15 | Method for purifying fluorinated hydrocarbon compound |
KR1020177022009A KR20170106366A (ko) | 2015-01-22 | 2016-01-15 | 불소화 탄화수소 화합물의 정제 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-010538 | 2015-01-22 | ||
JP2015010538 | 2015-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016117463A1 true WO2016117463A1 (ja) | 2016-07-28 |
Family
ID=56417010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/051111 WO2016117463A1 (ja) | 2015-01-22 | 2016-01-15 | フッ素化炭化水素化合物の精製方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10017437B2 (ja) |
JP (1) | JPWO2016117463A1 (ja) |
KR (1) | KR20170106366A (ja) |
CN (1) | CN107108411B (ja) |
TW (1) | TW201627047A (ja) |
WO (1) | WO2016117463A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020043239A (ja) * | 2018-09-11 | 2020-03-19 | キオクシア株式会社 | 半導体装置の製造方法およびエッチングガス |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61178929A (ja) * | 1985-02-04 | 1986-08-11 | Hitachi Ltd | 塩化炭化水素系有機溶晶の全自動脱水装置 |
JP2000034238A (ja) * | 1998-07-17 | 2000-02-02 | Toagosei Co Ltd | 含フッ素オレフィンの精製方法 |
JP2002047218A (ja) * | 2000-07-27 | 2002-02-12 | Nippon Zeon Co Ltd | フッ素化炭化水素の精製方法、溶剤、潤滑性重合体含有液および潤滑性重合体膜を有する物品 |
JP2014024785A (ja) * | 2012-07-26 | 2014-02-06 | Nippon Zeon Co Ltd | フッ素化炭化水素化合物の精製方法 |
JP2015044777A (ja) * | 2013-08-29 | 2015-03-12 | 日本ゼオン株式会社 | 2−フルオロブタンの精製方法 |
WO2015093527A1 (ja) * | 2013-12-20 | 2015-06-25 | 日本ゼオン株式会社 | フッ素化炭化水素化合物の精製方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3516322B2 (ja) * | 1996-03-07 | 2004-04-05 | セントラル硝子株式会社 | 1,1,1,3,3−ペンタフルオロプロパンの脱水方法 |
CN103936547B (zh) * | 2014-04-30 | 2016-01-13 | 上海杰视医疗科技有限公司 | 一种全氟辛烷的纯化方法 |
-
2016
- 2016-01-15 TW TW105101179A patent/TW201627047A/zh unknown
- 2016-01-15 CN CN201680004179.5A patent/CN107108411B/zh not_active Expired - Fee Related
- 2016-01-15 KR KR1020177022009A patent/KR20170106366A/ko unknown
- 2016-01-15 JP JP2016570604A patent/JPWO2016117463A1/ja active Pending
- 2016-01-15 US US15/541,480 patent/US10017437B2/en not_active Expired - Fee Related
- 2016-01-15 WO PCT/JP2016/051111 patent/WO2016117463A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61178929A (ja) * | 1985-02-04 | 1986-08-11 | Hitachi Ltd | 塩化炭化水素系有機溶晶の全自動脱水装置 |
JP2000034238A (ja) * | 1998-07-17 | 2000-02-02 | Toagosei Co Ltd | 含フッ素オレフィンの精製方法 |
JP2002047218A (ja) * | 2000-07-27 | 2002-02-12 | Nippon Zeon Co Ltd | フッ素化炭化水素の精製方法、溶剤、潤滑性重合体含有液および潤滑性重合体膜を有する物品 |
JP2014024785A (ja) * | 2012-07-26 | 2014-02-06 | Nippon Zeon Co Ltd | フッ素化炭化水素化合物の精製方法 |
JP2015044777A (ja) * | 2013-08-29 | 2015-03-12 | 日本ゼオン株式会社 | 2−フルオロブタンの精製方法 |
WO2015093527A1 (ja) * | 2013-12-20 | 2015-06-25 | 日本ゼオン株式会社 | フッ素化炭化水素化合物の精製方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020043239A (ja) * | 2018-09-11 | 2020-03-19 | キオクシア株式会社 | 半導体装置の製造方法およびエッチングガス |
JP7173799B2 (ja) | 2018-09-11 | 2022-11-16 | キオクシア株式会社 | 半導体装置の製造方法およびエッチングガス |
Also Published As
Publication number | Publication date |
---|---|
CN107108411B (zh) | 2020-01-03 |
US20170369404A1 (en) | 2017-12-28 |
JPWO2016117463A1 (ja) | 2017-11-02 |
TW201627047A (zh) | 2016-08-01 |
US10017437B2 (en) | 2018-07-10 |
KR20170106366A (ko) | 2017-09-20 |
CN107108411A (zh) | 2017-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6370365B2 (ja) | フルオロカーボンの製造において3,3,3−トリフルオロプロピンの形成を抑制するためのプロセス | |
JP7265867B2 (ja) | 加水分解性有機溶媒のための精製プロセス | |
KR20090009269A (ko) | 산-함유 기체 혼합물의 가역적 무수 분리 방법 | |
WO2014185499A1 (ja) | 塩化水素の精製方法 | |
WO2010001025A2 (fr) | PROCEDE DE PURIFICATION DE 2,3,3,3-TETRAFLUORO-1-PROPENE (HF01234yf) | |
ES2877091T3 (es) | Procedimiento de purificación para disolvente orgánico hidrófilo | |
JP6819089B2 (ja) | イミノジ酢酸型キレート樹脂の製造方法 | |
TWI816959B (zh) | 六氟丁二烯之純化方法 | |
JP5929588B2 (ja) | フッ素化炭化水素化合物の精製方法 | |
WO2016117463A1 (ja) | フッ素化炭化水素化合物の精製方法 | |
JP5431673B2 (ja) | 不飽和フッ素化炭素化合物の精製方法、フルオロカーボン膜の成膜方法、及び半導体装置の製造方法 | |
US9682906B2 (en) | Method for purifying hydrofluorocarbon compound | |
JP7507181B2 (ja) | 有機溶媒を精製するためのプロセス | |
JP2019081885A (ja) | イオン交換樹脂、精製方法、及びイオン性樹脂の製造方法 | |
TW202311217A (zh) | 用於純化二醇醚之方法 | |
BR112017003272B1 (pt) | Processo para a recuperação de ácido carboxílico, e processo para a fabricação de madeira tratada | |
RU2789056C1 (ru) | Способ очистки гексафторбутадиена | |
TWI710544B (zh) | 離子交換樹脂、純化方法及製備離子樹脂的方法 | |
CN114805814A (zh) | 应用电子半导体领域有机硅材料提纯方法 | |
JP2016166157A (ja) | フッ素化炭化水素化合物充填済みガス充填容器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16740070 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016570604 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15541480 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20177022009 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16740070 Country of ref document: EP Kind code of ref document: A1 |