JP6063746B2 - スルフォラン類組成物 - Google Patents
スルフォラン類組成物 Download PDFInfo
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- JP6063746B2 JP6063746B2 JP2012553588A JP2012553588A JP6063746B2 JP 6063746 B2 JP6063746 B2 JP 6063746B2 JP 2012553588 A JP2012553588 A JP 2012553588A JP 2012553588 A JP2012553588 A JP 2012553588A JP 6063746 B2 JP6063746 B2 JP 6063746B2
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- JP
- Japan
- Prior art keywords
- sulfolane
- compound
- composition
- organic
- alkanolamine compound
- 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.)
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- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 title claims description 45
- 239000000203 mixture Substances 0.000 title claims description 30
- 150000001875 compounds Chemical class 0.000 claims description 37
- -1 sulfolane compound Chemical class 0.000 claims description 29
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 3
- 229940043276 diisopropanolamine Drugs 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 34
- 238000013112 stability test Methods 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 17
- 238000005979 thermal decomposition reaction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000009835 boiling Methods 0.000 description 6
- 238000002845 discoloration Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- RDKKQZIFDSEMNU-UHFFFAOYSA-N 2-ethylsulfonylpropane Chemical compound CCS(=O)(=O)C(C)C RDKKQZIFDSEMNU-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002459 sustained effect Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 238000001577 simple distillation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 2
- TXVDMCOBUOCVLM-UHFFFAOYSA-N 2,5-diethylthiolane 1,1-dioxide Chemical compound CCC1CCC(CC)S1(=O)=O TXVDMCOBUOCVLM-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 238000004255 ion exchange chromatography Methods 0.000 description 2
- 150000002898 organic sulfur compounds Chemical class 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002798 polar solvent Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- 0 *C(C(*)C1(*)*)C(*)(*)S1(=O)=O Chemical compound *C(C(*)C1(*)*)C(*)(*)S1(=O)=O 0.000 description 1
- KQIXMZWXFFHRAQ-UHFFFAOYSA-N 1-(2-hydroxybutylamino)butan-2-ol Chemical compound CCC(O)CNCC(O)CC KQIXMZWXFFHRAQ-UHFFFAOYSA-N 0.000 description 1
- BFIAIMMAHAIVFT-UHFFFAOYSA-N 1-[bis(2-hydroxybutyl)amino]butan-2-ol Chemical compound CCC(O)CN(CC(O)CC)CC(O)CC BFIAIMMAHAIVFT-UHFFFAOYSA-N 0.000 description 1
- KODLUXHSIZOKTG-UHFFFAOYSA-N 1-aminobutan-2-ol Chemical compound CCC(O)CN KODLUXHSIZOKTG-UHFFFAOYSA-N 0.000 description 1
- NPMWMASMLLLYFA-UHFFFAOYSA-N 2,3,4,5-tetramethylthiolane 1,1-dioxide Chemical compound CC1C(C)C(C)S(=O)(=O)C1C NPMWMASMLLLYFA-UHFFFAOYSA-N 0.000 description 1
- DNDZVGCIXIJVJB-UHFFFAOYSA-N 2,3,5-trimethylthiolane 1,1-dioxide Chemical compound CC1CC(C)S(=O)(=O)C1C DNDZVGCIXIJVJB-UHFFFAOYSA-N 0.000 description 1
- WKFQMDFSDQFAIC-UHFFFAOYSA-N 2,4-dimethylthiolane 1,1-dioxide Chemical compound CC1CC(C)S(=O)(=O)C1 WKFQMDFSDQFAIC-UHFFFAOYSA-N 0.000 description 1
- UWDCSKINIJIUHB-UHFFFAOYSA-N 2,5-diethyl-2,5-dimethylthiolane 1,1-dioxide Chemical compound CCC1(C)CCC(C)(CC)S1(=O)=O UWDCSKINIJIUHB-UHFFFAOYSA-N 0.000 description 1
- VHQWJCUFWZLZLL-UHFFFAOYSA-N 2,5-dimethylthiolane 1-oxide Chemical compound CC1CCC(C)S1=O VHQWJCUFWZLZLL-UHFFFAOYSA-N 0.000 description 1
- WLHJCJKKTNXOJM-UHFFFAOYSA-N 2,5-dipropylthiolane 1,1-dioxide Chemical compound CCCC1CCC(CCC)S1(=O)=O WLHJCJKKTNXOJM-UHFFFAOYSA-N 0.000 description 1
- NJBJISQQCWGEGN-UHFFFAOYSA-N 3,4-dibutylthiolane 1,1-dioxide Chemical compound CCCCC1CS(=O)(=O)CC1CCCC NJBJISQQCWGEGN-UHFFFAOYSA-N 0.000 description 1
- RCZLLJHNWOJQLD-UHFFFAOYSA-N 3,4-diethylthiolane 1,1-dioxide Chemical compound CCC1CS(=O)(=O)CC1CC RCZLLJHNWOJQLD-UHFFFAOYSA-N 0.000 description 1
- XOUFYAQSTVWOPZ-UHFFFAOYSA-N 3,4-dimethylthiolane 1,1-dioxide Chemical compound CC1CS(=O)(=O)CC1C XOUFYAQSTVWOPZ-UHFFFAOYSA-N 0.000 description 1
- SOISRTCWXMURDJ-UHFFFAOYSA-N 3-(2-methylpropyl)thiolane 1,1-dioxide Chemical compound CC(C)CC1CCS(=O)(=O)C1 SOISRTCWXMURDJ-UHFFFAOYSA-N 0.000 description 1
- JEIQEQBAZNCTKR-UHFFFAOYSA-N 3-butylthiolane 1,1-dioxide Chemical compound CCCCC1CCS(=O)(=O)C1 JEIQEQBAZNCTKR-UHFFFAOYSA-N 0.000 description 1
- SOZYDBBOFTUUPT-UHFFFAOYSA-N 3-ethylthiolane 1,1-dioxide Chemical compound CCC1CCS(=O)(=O)C1 SOZYDBBOFTUUPT-UHFFFAOYSA-N 0.000 description 1
- VBSZSMBILPNANP-UHFFFAOYSA-N 3-hexyl-2,5-dimethylthiolane 1,1-dioxide Chemical compound CCCCCCC1CC(C)S(=O)(=O)C1C VBSZSMBILPNANP-UHFFFAOYSA-N 0.000 description 1
- HKFWDKJTYMRGPI-UHFFFAOYSA-N 3-hexyl-4-methylthiolane 1,1-dioxide Chemical compound CCCCCCC1CS(=O)(=O)CC1C HKFWDKJTYMRGPI-UHFFFAOYSA-N 0.000 description 1
- WWIDOFKGVGTPPX-UHFFFAOYSA-N 3-hexylthiolane 1,1-dioxide Chemical compound CCCCCCC1CCS(=O)(=O)C1 WWIDOFKGVGTPPX-UHFFFAOYSA-N 0.000 description 1
- ONZYKCHJFCVNCV-UHFFFAOYSA-N 3-methyl-2,5-dipropylthiolane 1,1-dioxide Chemical compound CCCC1CC(C)C(CCC)S1(=O)=O ONZYKCHJFCVNCV-UHFFFAOYSA-N 0.000 description 1
- CMJLMPKFQPJDKP-UHFFFAOYSA-N 3-methylthiolane 1,1-dioxide Chemical compound CC1CCS(=O)(=O)C1 CMJLMPKFQPJDKP-UHFFFAOYSA-N 0.000 description 1
- XWVQGSWWPONKGD-UHFFFAOYSA-N 3-propylthiolane 1,1-dioxide Chemical compound CCCC1CCS(=O)(=O)C1 XWVQGSWWPONKGD-UHFFFAOYSA-N 0.000 description 1
- LGIAUUJIWFUSOZ-UHFFFAOYSA-N 3-tert-butylthiolane 1,1-dioxide Chemical compound CC(C)(C)C1CCS(=O)(=O)C1 LGIAUUJIWFUSOZ-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- QOSATHPSBFQAML-UHFFFAOYSA-N hydrogen peroxide;hydrate Chemical compound O.OO QOSATHPSBFQAML-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methyl-cyclopentane Natural products CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011276 wood tar Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/46—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom
- C07D333/48—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
なお、本発明において、上記「スルフォラン類組成物」とは、スルフォラン化合物を含有する組成物を意味する。
第1級アルカノールアミン化合物としては、例えば、モノエタノールアミン、モノイソプロパノールアミン、モノブタノールアミン等が挙げられる。
第2級アルカノールアミン化合物としては、例えば、ジエタノールアミン、ジイソプロパノールアミン、ジブタノールアミン等が挙げられる。
第3級アルカノールアミン化合物としては、例えば、トリエタノールアミン、トリイソプロパノールアミン、トリブタノールアミン等が挙げられる。
表1に記載の有機アルカノールアミン化合物を、表1に記載の含量となるようにスルフォラン250mL(310g)にそれぞれ添加してスルフォラン類組成物を得た。得られたスルフォラン類組成物について熱安定性試験1および2を行った。得られたスルフォラン類組成物の臭い、熱安定性試験1および2の結果、並びに、熱安定性試験1および2を行った後の30℃におけるスルフォラン類組成物の目視にて確認した外観を表1に示す。
有機アルカノールアミン化合物を添加せずに、実施例6、参考実験例1〜5及び7で用いたスルフォラン250mLのみを用いて熱安定試験1および2を行った。用いたスルフォランの臭い、熱安定性試験1および2の結果、並びに、熱安定性試験1および2を行った後の30℃におけるスルフォランの目視にて確認した外観を表1に示す。
表1に記載の添加剤を、表1に記載の含量となるようにスルフォラン250mL(310g)にそれぞれ添加してスルフォラン類組成物を得た。得られたスルフォラン類組成物について熱安定性試験1および2を行った。得られたスルフォラン類組成物の臭い、熱安定性試験1および2の結果、並びに、熱安定性試験1および2を行った後の30℃におけるスルフォラン類組成物の目視にて確認した外観を表1に示す。
なお、比較例5にて用いたTEMPOは、2,2,6,6−テトラメチル−1−ピペリジン−1−オキシルを示す。
(比較例6)
有機アルカノールアミン化合物を添加せずに、エチルイソプロピルスルホン250mLのみを用いて熱安定性試験1および2を行った。用いたエチルイソプロピルスルホンの臭い、熱安定性試験1および2の結果、並びに、熱安定性試験1および2を行った後の30℃におけるエチルイソプロピルスルホンの外観を表1に示す。
実施例6、参考実験例1〜5及び7〜9、比較例2〜5で得られたスルフォラン類組成物、比較例1のスルフォラン、比較例6のスルホンの全量をそれぞれ500mLのフラスコに入れた。フラスコ内の試料に、窒素ガスを83mL/minの流速で通気し、吹き抜けたガスを二酸化硫黄の吸収液として、3%過酸化水素水100mLを含むガス吸引瓶に導入しながら、フラスコ内の試料が約20分間で180±2℃に加熱されるようにフラスコを加熱し、試料温度を180±2℃に保ちながら、窒素ガスを83mL/minの流速で1時間通気した。その後、窒素ガスを40mL/minの流速で通気しながら、温度が100℃になるまで放冷した。放冷後、吸収瓶を取り外し、吸収液中の二酸化硫黄をイオンクロマトグラフィーにより定量した。
実施例6、参考実験例1〜5及び7〜9、比較例2〜5で得られたスルフォラン類組成物、比較例1のスルフォラン、比較例6のスルホンの全量をそれぞれ500mLのフラスコに入れた。オイルバスを加熱して温度を180±2℃まで昇温し、そこにフラスコを浸した。1時間後、フラスコ内の試料中の二酸化硫黄をイオンクロマトグラフィーにより定量した。
蒸留水100mLを入れた300mLの共栓付きマイヤーフラスコにそれぞれ実施例6、参考実験例1〜5及び7〜9、比較例2〜5で得られたスルフォラン類組成物、比較例1のスルフォラン、比較例6のエチルイソプロピルスルホンを1滴加えて、5分攪拌し、1時間静置した。
ついで5人のパネラー(官能試験者)に300mLの共栓付きマイヤーフラスコ中の臭気を、規定基準の「6段階臭気強度表示法」に準じて下記の基準により判定してもらい、その平均値で評価した。結果を表1に示す。
5:強烈な臭い
4:強い臭い
3:楽に認識できる臭い
2:何の臭いか分かる弱い臭い
1:やっと感知できる臭い
0:無臭
参考実験例2で得られたスルフォラン類組成物について、熱安定性試験1および2を実施後、その溶液を単蒸留し、それらの全量を混合してスルフォラン類組成物を得た。得られたスルフォラン類組成物の全量を500mLのフラスコに入れ、さらに熱安定性試験1および2を行った。結果を表2に示す。
参考例1で得られたスルフォラン類組成物について、熱安定性試験1および2を実施後、それぞれ、その溶液を単蒸留し、それらの全量を混合してスルフォラン類組成物を得た。得られたスルフォラン類組成物の全量を500mLのフラスコに入れ、さらに熱安定性試験1および2を行った。結果を表2に示す。
Claims (2)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011007402 | 2011-01-18 | ||
JP2011007402 | 2011-01-18 | ||
JP2011251396 | 2011-11-17 | ||
JP2011251396 | 2011-11-17 | ||
PCT/JP2011/080155 WO2012098811A1 (ja) | 2011-01-18 | 2011-12-27 | スルフォラン類組成物 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2012098811A1 JPWO2012098811A1 (ja) | 2014-06-09 |
JP6063746B2 true JP6063746B2 (ja) | 2017-01-18 |
Family
ID=46515448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012553588A Active JP6063746B2 (ja) | 2011-01-18 | 2011-12-27 | スルフォラン類組成物 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140012018A1 (ja) |
JP (1) | JP6063746B2 (ja) |
WO (1) | WO2012098811A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014192366A (ja) * | 2013-03-27 | 2014-10-06 | Sumitomo Seika Chem Co Ltd | 電気化学デバイス電解液用溶媒 |
WO2015159386A1 (ja) | 2014-04-16 | 2015-10-22 | 住友精化株式会社 | 電気化学デバイス電解液用溶媒 |
EP3863723A4 (en) * | 2018-10-14 | 2022-09-07 | The University of Chicago | COMPOSITIONS AND METHODS FOR ACTIVATING NRF2-DEPENDENT GENE EXPRESSION |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53100180A (en) * | 1977-02-14 | 1978-09-01 | Exxon Research Engineering Co | Method of removing acidic gas from gaseous mixture andamine solvent absorbent therefor |
JPH07101953A (ja) * | 1993-10-06 | 1995-04-18 | Kawasaki Steel Corp | 使用済スルホランの精製法 |
JPH11255765A (ja) * | 1998-03-10 | 1999-09-21 | Sumitomo Seika Chem Co Ltd | スルフォランの安定化方法 |
JP2001521018A (ja) * | 1997-10-27 | 2001-11-06 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | アルカノールアミンの精製方法 |
JP2005514194A (ja) * | 2002-01-14 | 2005-05-19 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | ガス混合物からの二酸化炭素の除去方法 |
JP2009215369A (ja) * | 2008-03-07 | 2009-09-24 | Kaneka Corp | スルホラン組成物、及び有機化合物の製造方法 |
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2011
- 2011-12-27 WO PCT/JP2011/080155 patent/WO2012098811A1/ja active Application Filing
- 2011-12-27 US US13/979,953 patent/US20140012018A1/en not_active Abandoned
- 2011-12-27 JP JP2012553588A patent/JP6063746B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53100180A (en) * | 1977-02-14 | 1978-09-01 | Exxon Research Engineering Co | Method of removing acidic gas from gaseous mixture andamine solvent absorbent therefor |
JPH07101953A (ja) * | 1993-10-06 | 1995-04-18 | Kawasaki Steel Corp | 使用済スルホランの精製法 |
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