ATE137488T1 - Verfahren zur herstellung von reiner hydroxyessigsäure - Google Patents
Verfahren zur herstellung von reiner hydroxyessigsäureInfo
- Publication number
- ATE137488T1 ATE137488T1 AT91918973T AT91918973T ATE137488T1 AT E137488 T1 ATE137488 T1 AT E137488T1 AT 91918973 T AT91918973 T AT 91918973T AT 91918973 T AT91918973 T AT 91918973T AT E137488 T1 ATE137488 T1 AT E137488T1
- Authority
- AT
- Austria
- Prior art keywords
- hydroxyacetic acid
- producing pure
- acid
- crude
- hydroxyacetic
- Prior art date
Links
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 title abstract 8
- 229960004275 glycolic acid Drugs 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 238000005810 carbonylation reaction Methods 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
-
- 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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58562990A | 1990-09-20 | 1990-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE137488T1 true ATE137488T1 (de) | 1996-05-15 |
Family
ID=24342260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT91918973T ATE137488T1 (de) | 1990-09-20 | 1991-09-18 | Verfahren zur herstellung von reiner hydroxyessigsäure |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0552255B1 (de) |
| JP (1) | JPH06501268A (de) |
| AT (1) | ATE137488T1 (de) |
| CA (1) | CA2091906A1 (de) |
| DE (1) | DE69119234T2 (de) |
| HK (1) | HK180496A (de) |
| WO (1) | WO1992005138A1 (de) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19600620C1 (de) | 1996-01-10 | 1997-04-17 | Hoechst Ag | Verfahren zur Darstellung einer besonders reinen Glykolsäure |
| AU2002211056A1 (en) | 2000-09-15 | 2002-03-26 | Purac Biochem B.V. | Method for the purification of alpha-hydroxy acids on an industrial scale |
| WO2002022546A1 (en) * | 2000-09-15 | 2002-03-21 | Purac Biochem B.V. | METHOD FOR THE PURIFICATION OF AN α-HYDROXY ON INDUSTRIAL SCALE_______________________________________________________ |
| WO2002022545A1 (en) * | 2000-09-15 | 2002-03-21 | Purac Biochem B.V. | METHOD FOR THE PURIFICATION OF α-HYDROXI ON INDUSTRIAL SCALE _______________________________________________________ |
| JP3989002B2 (ja) * | 2002-01-29 | 2007-10-10 | 旭化成ケミカルズ株式会社 | 高純度のグリコール酸結晶の製造方法 |
| CN100534972C (zh) * | 2003-09-30 | 2009-09-02 | 味之素株式会社 | 从发酵液中纯化琥珀酸的方法 |
| US20050209328A1 (en) * | 2004-03-19 | 2005-09-22 | Allgood Charles C | Alphahydroxyacids with ultra-low metal concentration |
| JP5355841B2 (ja) * | 2004-12-17 | 2013-11-27 | 株式会社クレハ | グリコール酸の連続精製方法、グリコリドの製造方法およびポリグリコール酸の製造方法 |
| WO2006126626A1 (ja) | 2005-05-27 | 2006-11-30 | Asahi Kasei Chemicals Corporation | グリコール酸の製造方法 |
| JPWO2007049707A1 (ja) | 2005-10-26 | 2009-04-30 | 三井化学株式会社 | グリコール酸の製造方法 |
| JP5280007B2 (ja) | 2006-08-02 | 2013-09-04 | 株式会社クレハ | ヒドロキシカルボン酸の精製方法、環状エステルの製造方法およびポリヒドロキシカルボン酸の製造方法 |
| US7439391B2 (en) | 2006-10-12 | 2008-10-21 | E.I. Du Pont De Nemours And Company | Multi-stage glycolic acid crystallization |
| FR2974804B1 (fr) | 2011-05-06 | 2013-05-03 | Roquette Freres | Procede de preparation d'un acide glycolique de haute purete |
| FR2974802B1 (fr) | 2011-05-06 | 2013-09-13 | Roquette Freres | Procede de purification de l'acide glycolique par distillation |
| FR2974803B1 (fr) | 2011-05-06 | 2013-05-03 | Roquette Freres | Procede de preparation d'un acide glycolique partiellement purifie |
| FR3001453B1 (fr) | 2013-01-30 | 2015-03-06 | Roquette Freres | Procede de purification de l'acide glycolique par traitement thermique |
| GB201505977D0 (en) * | 2015-04-08 | 2015-05-20 | Johnson Matthey Davy Technologies Ltd | Catalyst system and process |
| CN109694318A (zh) * | 2017-10-20 | 2019-04-30 | 中国石油化工股份有限公司 | 生产高纯度乙醇酸的方法 |
| CN112174808A (zh) * | 2020-10-30 | 2021-01-05 | 河北金谷再生资源开发有限公司 | 一种乙醇酸脱盐装置及脱盐工艺 |
| CN115974830B (zh) * | 2022-12-30 | 2024-06-11 | 重庆江际材料技术有限公司 | 一种高纯度低成本的乙交酯连续制备方法 |
| CN119143973B (zh) * | 2024-09-14 | 2025-09-12 | 河北乐开节能科技股份有限公司 | 一种超高纯度结晶乳酸及其制备方法和应用 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2037654A (en) * | 1933-05-25 | 1936-04-14 | Du Pont | Process for the preparation of organic acids from ketones |
| US2152852A (en) * | 1936-12-31 | 1939-04-04 | Du Pont | Process for manufacture of glycolic acid |
| US2153064A (en) * | 1937-11-03 | 1939-04-04 | Du Pont | Process for the preparation of glycolic acid |
| DK129933B (da) * | 1967-02-14 | 1974-12-02 | American Cyanamid Co | Fremgangsmåde til rensning af omkrystalliseret delvis renset glycolid. |
| US3859349A (en) * | 1973-02-15 | 1975-01-07 | Du Pont | Purification of hydroxyacetic acid |
| US4140866A (en) * | 1978-03-30 | 1979-02-20 | Ppg Industries, Inc. | Preparation of sulfate free glycolic acid ester |
-
1991
- 1991-09-18 EP EP91918973A patent/EP0552255B1/de not_active Expired - Lifetime
- 1991-09-18 WO PCT/US1991/006626 patent/WO1992005138A1/en not_active Ceased
- 1991-09-18 AT AT91918973T patent/ATE137488T1/de not_active IP Right Cessation
- 1991-09-18 CA CA002091906A patent/CA2091906A1/en not_active Abandoned
- 1991-09-18 JP JP3517252A patent/JPH06501268A/ja active Pending
- 1991-09-18 DE DE69119234T patent/DE69119234T2/de not_active Expired - Lifetime
-
1996
- 1996-09-26 HK HK180496A patent/HK180496A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE69119234T2 (de) | 1996-11-28 |
| CA2091906A1 (en) | 1992-03-21 |
| EP0552255A1 (de) | 1993-07-28 |
| EP0552255B1 (de) | 1996-05-01 |
| DE69119234D1 (de) | 1996-06-05 |
| HK180496A (en) | 1996-10-04 |
| WO1992005138A1 (en) | 1992-04-02 |
| JPH06501268A (ja) | 1994-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69119234D1 (de) | Verfahren zur herstellung von reiner hydroxyessigsäure | |
| ATE464281T1 (de) | Verfahren zur herstellung von gereinigter terephtalsäure | |
| DE69505190D1 (de) | Verfahren zur Herstellung von hochreiner Essigsäure | |
| DE69221610D1 (de) | Verfahren zur herstellung von terephtalsäure | |
| DE69530242D1 (de) | Verfahren zur Herstellung von Glutaminsäure durch Fermentation | |
| DE69104280D1 (de) | Verfahren zur Herstellung von hochreiner Isophthalsäure. | |
| ATE194603T1 (de) | Ein verfahren zur herstellung von tetrazolyl- verbindungen | |
| DE69122936D1 (de) | Verfahren zur Herstellung von Sialsäure | |
| DE69518901D1 (de) | Verfahren zur Herstellung von Xylitol | |
| ATE364589T1 (de) | Verfahren zur herstellung von hochreinen kristallen von glykolsäure | |
| DE69608635D1 (de) | Verfahren zur Herstellung von Essigsäure durch Carbonylierung des Dimethyläthers | |
| ATE131474T1 (de) | Verfahren zur herstellung cyclischer carbonate | |
| DK154562C (da) | Fremgangsmaade til fremstilling af isosorbid-2-acylat | |
| ATE283864T1 (de) | Ein verfahren zur herstellung therapeutisch wirksamer bruchstücke von von willebrand-faktor | |
| ATE157647T1 (de) | Verfahren zur herstellung von alpha- ketoamidderivaten | |
| ATE174601T1 (de) | Verfahren zur herstellung von bisnoraldehyden aus bisnoralkohol | |
| ATE129699T1 (de) | Verfahren zur herstellung gereinigter alkansulfonsäuren. | |
| DE69228226D1 (de) | Verfahren zur Herstellung von 2-Amino-6-Halogenopurin und Synthese einer Zwischenverbindung | |
| DE69903450D1 (de) | Verfahren zur rückgewinnung von methylacetat und restlicher essigsäure in der herstellung von reiner terephthalsäure | |
| ATE144512T1 (de) | Verfahren zur herstellung von folsäure | |
| ATE129693T1 (de) | Verfahren zur herstellung von s(+)-6-methoxy- alpha-methyl-2-naphthalin-essigsäure. | |
| ATE305978T1 (de) | Verfahren zur reinigung von s-adenosyl-l- methionin und zur herstellung von pharmazeutisch verträglichen salzen davon | |
| ATE161051T1 (de) | Verfahren zur herstellung aktivierter sialinsäuren | |
| ATE325797T1 (de) | Verfahren zur herstellung von hochreinem triethylendiamin | |
| DE69002867D1 (de) | Verfahren zur Herstellung hochreiner o-Toluolsäure. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |