KR19980701285A - 조제 나프탈렌디카르복실산의 정제방법 - Google Patents
조제 나프탈렌디카르복실산의 정제방법 Download PDFInfo
- Publication number
- KR19980701285A KR19980701285A KR1019970704674A KR19970704674A KR19980701285A KR 19980701285 A KR19980701285 A KR 19980701285A KR 1019970704674 A KR1019970704674 A KR 1019970704674A KR 19970704674 A KR19970704674 A KR 19970704674A KR 19980701285 A KR19980701285 A KR 19980701285A
- Authority
- KR
- South Korea
- Prior art keywords
- naphthalenedicarboxylic acid
- water
- solvent
- alcohol
- crude
- Prior art date
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- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000000746 purification Methods 0.000 title 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002904 solvent Substances 0.000 claims abstract description 47
- 239000012535 impurity Substances 0.000 claims abstract description 33
- -1 naphthalenedicarboxylic acid ester Chemical class 0.000 claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 25
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 238000005886 esterification reaction Methods 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 230000032050 esterification Effects 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims description 8
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 7
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- GYUVMLBYMPKZAZ-UHFFFAOYSA-N dimethyl naphthalene-2,6-dicarboxylate Chemical compound C1=C(C(=O)OC)C=CC2=CC(C(=O)OC)=CC=C21 GYUVMLBYMPKZAZ-UHFFFAOYSA-N 0.000 description 5
- SKTKMAWOMQFTNS-UHFFFAOYSA-N 6-methoxycarbonylnaphthalene-2-carboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)OC)=CC=C21 SKTKMAWOMQFTNS-UHFFFAOYSA-N 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052763 palladium Inorganic materials 0.000 description 4
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 4
- 239000011112 polyethylene naphthalate Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- BNIWTJAVDJYTIJ-UHFFFAOYSA-N 1,3-dimethylnaphthalene-2,6-dicarboxylic acid Chemical compound OC(=O)C1=CC=C2C(C)=C(C(O)=O)C(C)=CC2=C1 BNIWTJAVDJYTIJ-UHFFFAOYSA-N 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- NEVIIFXLIXAPQN-UHFFFAOYSA-N bis(2-hydroxyethyl) naphthalene-2,6-dicarboxylate Chemical compound C1=C(C(=O)OCCO)C=CC2=CC(C(=O)OCCO)=CC=C21 NEVIIFXLIXAPQN-UHFFFAOYSA-N 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 150000002431 hydrogen Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002685 polymerization catalyst Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- DMEMEJBZCUNLGQ-UHFFFAOYSA-N 4-formylnaphthalene-2-carboxylic acid Chemical compound C1=CC=CC2=CC(C(=O)O)=CC(C=O)=C21 DMEMEJBZCUNLGQ-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- JGJWEXOAAXEJMW-UHFFFAOYSA-N dimethyl naphthalene-1,2-dicarboxylate Chemical compound C1=CC=CC2=C(C(=O)OC)C(C(=O)OC)=CC=C21 JGJWEXOAAXEJMW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940119177 germanium dioxide Drugs 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/33—Polycyclic acids
- C07C63/337—Polycyclic acids with carboxyl groups bound to condensed ring systems
- C07C63/34—Polycyclic acids with carboxyl groups bound to condensed ring systems containing two condensed rings
- C07C63/38—Polycyclic acids with carboxyl groups bound to condensed ring systems containing two condensed rings containing two carboxyl groups both bound to carbon atoms of the condensed ring system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (7)
- 조제 나프탈렌디카르복실산을 물/알콜 용제와 혼합하여 나프탈렌디카르복실산의 일부를 에스테르화하고 용제에 용해함으로써, 나프탈렌디카르복실산 에스테르를 용제중에 용해하고,다음에 수소화 촉매의 존재하에 상기 반응 생성 혼합물과 수소를 접촉시켜서, 조제 나프탈렌디카르복실산에 함유된 수소화가 가능한 불순물을 수소화하고, 수소화 생성물을 물/메타놀 용제에 용해하여 제거하는 공정으로 된 조제 나프탈렌디카르복실산의 정제방법.
- 조제 나프탈렌디카르복실산을 물/알콜 용제와 혼합하여 나프탈렌디카르복실산의 일부를 에스테르화하고 용제에 용해함으로써, 나프탈렌디카르복실산 에스테르를 용제중에 용해하고,다음에 수소화 촉매의 존재하에 상기 반응 생성 혼합물과 수소를 접촉시켜서, 조제 나프탈렌디카르복실산에 함유된 수소화가 가능한 불순물을 수소화하고, 수소화 생성물을 물/메타놀 용제에 용해하여 제거하고, 또나프탈렌디카르복실산과 나프탈렌디카르복실산 에스테르를 결정화하는 공정으로 된 조제 나프탈렌디카르복실산의 정제방법.
- 조제 나프탈렌디카르복실산을 물/알콜 용제와 혼합하여 나프탈렌디카르복실산의 일부를 에스테르화하고 용제에 용해함으로써, 나프탈렌디카르복실산 에스테르를 용제중에 용해하고,다음에 수소화 촉매의 존재하에 상기 반응 생성 혼합물과 수소를 접촉시켜서, 조제 나프탈렌디카르복실산에 함유된 수소화가 가능한 불순물을 수소화하고, 수소화 생성물을 물/메타놀 용제에 용해하여 제거하고, 또물/알콜 용제의 알콜농도를 낮추어서 나프탈렌디카르복실산 에스테르를 가수분해하여, 생성한 나프탈렌디카르복실산을 회수하는 공정으로 된 조제 나프탈렌디카르복실산의 정제방법.
- 제1항∼제3항 중의 어느 1항에 있어서, 나프탈렌디카르복실산의 에스테르화중의 물/알콜 용제의 알콜 농도는 40∼70중량%인 조제 나프탈렌디카르복실산의 정제방법.
- 제4항에 있어서, 나프탈렌디카르복실산 에스테르의 가수분해중의 물/알콜 용제의 알콜 농도는 30중량% 이하인 조제 나프탈렌디카르복실산의 정제방법.
- 제1항∼제5항 중의 어느 1항에 있어서, 알콜은 메타놀, 에타놀 또는 에틸렌글리콜인 조제 또는 나프탈렌디카르복실산의 정제방법.
- 제1항∼제6항 중의 어느 1항에 있어서, 얻어진 나프탈렌디카르복실산을 물 또는 알콜로 세정하는 공정을 더 구비한 조제 나프탈렌디카르복실산의 정제방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP95-293101 | 1995-11-10 | ||
JP29310195 | 1995-11-10 | ||
JP96-121899 | 1996-05-16 | ||
JP12189996 | 1996-05-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980701285A true KR19980701285A (ko) | 1998-05-15 |
KR100229005B1 KR100229005B1 (ko) | 1999-11-01 |
Family
ID=26459148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970704674A KR100229005B1 (ko) | 1995-11-10 | 1996-10-30 | 조제 나프탈렌디카르복실산의 정제방법 |
Country Status (9)
Country | Link |
---|---|
US (1) | US5872284A (ko) |
EP (1) | EP0802896B1 (ko) |
JP (1) | JPH10512596A (ko) |
KR (1) | KR100229005B1 (ko) |
CN (1) | CN1168131A (ko) |
CA (1) | CA2209907A1 (ko) |
DE (1) | DE69611430T2 (ko) |
TW (1) | TW400322B (ko) |
WO (1) | WO1997017318A1 (ko) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10512596A (ja) * | 1995-11-10 | 1998-12-02 | 三井化学株式会社 | 粗ナフタレンジカルボン酸の精製方法 |
CA2241182A1 (en) * | 1996-05-20 | 1997-11-27 | Mitsui Chemicals, Incorporated | Naphthalenedicarboxylic acid particles and process for the production thereof |
US6642407B2 (en) | 2001-05-18 | 2003-11-04 | Exxon Mobil Chemical Patents Inc. | Production, purification and polymerization of aromatic dicarboxylic acids |
KR100545541B1 (ko) * | 2002-03-06 | 2006-01-25 | 주식회사 효성 | 고순도 2,6-나프탈렌 디카복실산의 제조방법 |
KR100770516B1 (ko) * | 2004-12-30 | 2007-10-25 | 주식회사 효성 | 벤즈알데히드 디하이드로게나제를 발현하는 형질전환체의제조방법 및 이를 이용한 2,6-나프탈렌 디카르복실산의정제방법 |
US7390869B2 (en) | 2005-06-13 | 2008-06-24 | Eastman Chemical Company | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
RU2008148178A (ru) | 2006-05-08 | 2010-06-20 | Бп Корпорейшн Норт Америка Инк. (Us) | Способ окисления ароматических соединений и катализатор, используемый в этом способе |
KR100782675B1 (ko) * | 2006-12-29 | 2007-12-07 | 주식회사 효성 | 수소 반응을 통한 고순도 2,6-나프탈렌디카르복실산의정제방법 |
CN101715366A (zh) | 2007-05-04 | 2010-05-26 | Bp北美公司 | 用于氧化芳香化合物的方法和催化剂 |
EP2138720A3 (de) | 2008-06-24 | 2010-01-20 | MALI Holding AG | Verstellvorrichtung für die Verstellung von Axialkolbenmaschinen. |
JP5318595B2 (ja) * | 2009-01-26 | 2013-10-16 | 上野製薬株式会社 | 2,6−ナフタレンジカルボン酸の製造方法 |
JP5318596B2 (ja) * | 2009-01-26 | 2013-10-16 | 上野製薬株式会社 | 2,6−ナフタレンジカルボン酸の製造方法 |
CN103288632A (zh) * | 2013-06-19 | 2013-09-11 | 中国石油化工股份有限公司 | 一种粗均苯三甲酸精制的方法 |
BR112016003938B1 (pt) * | 2013-08-30 | 2021-02-23 | Furanix Technologies B.V | processo para a purificação de uma composição de ácido que compreende ácido 2-formil-furano-5-carboxílico e ácido 2,5-furanodicarboxílico |
CN105924345A (zh) * | 2016-06-22 | 2016-09-07 | 江苏永安制药有限公司 | 一种苯丁酸钠的制备方法 |
CN106117045A (zh) * | 2016-06-22 | 2016-11-16 | 北京阳光诺和药物研究有限公司 | 一种苯基丁酸的纯化方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5256817A (en) * | 1992-06-18 | 1993-10-26 | Amoco Corporation | Method for purifying a naphthalenedicarboxylic acid |
US5362908A (en) * | 1993-03-10 | 1994-11-08 | Amoco Corporation | Catalyst and method for purifying crude terephthalic acid, isophthalic acid or naphthalene dicarboxylic acid |
AU2910995A (en) * | 1994-12-20 | 1996-07-10 | Engelhard Corporation | Improved process for the purification of aromatic polycarboxylic acids |
JPH10512596A (ja) * | 1995-11-10 | 1998-12-02 | 三井化学株式会社 | 粗ナフタレンジカルボン酸の精製方法 |
-
1996
- 1996-10-30 JP JP9518051A patent/JPH10512596A/ja active Pending
- 1996-10-30 CA CA002209907A patent/CA2209907A1/en not_active Abandoned
- 1996-10-30 WO PCT/JP1996/003180 patent/WO1997017318A1/en active IP Right Grant
- 1996-10-30 US US08/860,622 patent/US5872284A/en not_active Expired - Fee Related
- 1996-10-30 KR KR1019970704674A patent/KR100229005B1/ko not_active IP Right Cessation
- 1996-10-30 CN CN96191360A patent/CN1168131A/zh active Pending
- 1996-10-30 DE DE69611430T patent/DE69611430T2/de not_active Expired - Fee Related
- 1996-10-30 EP EP96935500A patent/EP0802896B1/en not_active Expired - Lifetime
- 1996-11-06 TW TW085113537A patent/TW400322B/zh active
Also Published As
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---|---|
DE69611430D1 (de) | 2001-02-08 |
TW400322B (en) | 2000-08-01 |
WO1997017318A1 (en) | 1997-05-15 |
EP0802896B1 (en) | 2001-01-03 |
EP0802896A1 (en) | 1997-10-29 |
CN1168131A (zh) | 1997-12-17 |
JPH10512596A (ja) | 1998-12-02 |
KR100229005B1 (ko) | 1999-11-01 |
DE69611430T2 (de) | 2001-06-07 |
CA2209907A1 (en) | 1997-05-15 |
US5872284A (en) | 1999-02-16 |
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