DE69119234D1 - Verfahren zur herstellung von reiner hydroxyessigsäure - Google Patents
Verfahren zur herstellung von reiner hydroxyessigsäureInfo
- Publication number
- DE69119234D1 DE69119234D1 DE69119234T DE69119234T DE69119234D1 DE 69119234 D1 DE69119234 D1 DE 69119234D1 DE 69119234 T DE69119234 T DE 69119234T DE 69119234 T DE69119234 T DE 69119234T DE 69119234 D1 DE69119234 D1 DE 69119234D1
- Authority
- DE
- Germany
- Prior art keywords
- hydroxyacetic acid
- producing pure
- acid
- crude
- hydroxyacetic
- 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.)
- Expired - Lifetime
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58562990A | 1990-09-20 | 1990-09-20 | |
| PCT/US1991/006626 WO1992005138A1 (en) | 1990-09-20 | 1991-09-18 | Manufacture of high-purity hydroxyacetic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69119234D1 true DE69119234D1 (de) | 1996-06-05 |
| DE69119234T2 DE69119234T2 (de) | 1996-11-28 |
Family
ID=24342260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69119234T Expired - Lifetime DE69119234T2 (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 |
| JP4895337B2 (ja) * | 2000-09-15 | 2012-03-14 | プラク・ビオヘム・ベー・ブイ | α−ヒドロキシ酸の工業的規模での精製方法 |
| CN1281570C (zh) * | 2000-09-15 | 2006-10-25 | 普拉克生化公司 | 在工业规模上纯化α－羟基酸的方法 |
| ES2283440T3 (es) * | 2000-09-15 | 2007-11-01 | Purac Biochem B.V. | Metodo para la purificacion de acido lactico a escala industrial. |
| 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 |
| BRPI0414764B8 (pt) * | 2003-09-30 | 2018-09-18 | Ajinomoto Kk | método para purificar ácido succínico à partir de caldo de fermentação |
| 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 |
| JP5032309B2 (ja) | 2005-05-27 | 2012-09-26 | 旭化成ケミカルズ株式会社 | グリコール酸の製造方法 |
| WO2007049707A1 (ja) | 2005-10-26 | 2007-05-03 | Mitsui Chemicals, Inc. | 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 |
| 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 |
| FR2974804B1 (fr) | 2011-05-06 | 2013-05-03 | Roquette Freres | Procede de preparation d'un acide glycolique de haute purete |
| 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 |
| CN119143973A (zh) * | 2024-09-14 | 2024-12-17 | 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 WO PCT/US1991/006626 patent/WO1992005138A1/en active IP Right Grant
- 1991-09-18 CA CA002091906A patent/CA2091906A1/en not_active Abandoned
- 1991-09-18 DE DE69119234T patent/DE69119234T2/de not_active Expired - Lifetime
- 1991-09-18 EP EP91918973A patent/EP0552255B1/de not_active Expired - Lifetime
- 1991-09-18 AT AT91918973T patent/ATE137488T1/de not_active IP Right Cessation
- 1991-09-18 JP JP3517252A patent/JPH06501268A/ja active Pending
-
1996
- 1996-09-26 HK HK180496A patent/HK180496A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2091906A1 (en) | 1992-03-21 |
| ATE137488T1 (de) | 1996-05-15 |
| JPH06501268A (ja) | 1994-02-10 |
| EP0552255B1 (de) | 1996-05-01 |
| DE69119234T2 (de) | 1996-11-28 |
| WO1992005138A1 (en) | 1992-04-02 |
| HK180496A (en) | 1996-10-04 |
| EP0552255A1 (de) | 1993-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |