NL7307014A - - Google Patents
Info
- Publication number
- NL7307014A NL7307014A NL7307014A NL7307014A NL7307014A NL 7307014 A NL7307014 A NL 7307014A NL 7307014 A NL7307014 A NL 7307014A NL 7307014 A NL7307014 A NL 7307014A NL 7307014 A NL7307014 A NL 7307014A
- Authority
- NL
- Netherlands
Links
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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
- C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
-
- 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
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/22—Accessories
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5184672A JPS556623B2 (enExample) | 1972-05-24 | 1972-05-24 | |
| JP5184372A JPS5522462B2 (enExample) | 1972-05-24 | 1972-05-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL7307014A true NL7307014A (enExample) | 1973-11-27 |
| NL180579B NL180579B (nl) | 1986-10-16 |
| NL180579C NL180579C (nl) | 1987-03-16 |
Family
ID=26392425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7307014,A NL180579C (nl) | 1972-05-24 | 1973-05-18 | Werkwijze voor het scheiden van een mengsel bestaande uit acrylzuur, azijnzuur en water. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3859175A (enExample) |
| DE (1) | DE2326327C3 (enExample) |
| FR (1) | FR2185607B1 (enExample) |
| GB (1) | GB1427223A (enExample) |
| NL (1) | NL180579C (enExample) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2394512A1 (fr) * | 1977-06-14 | 1979-01-12 | Rhone Poulenc Ind | Procede de separation d'acide acrylique a partir de ses solutions dans le phosphate de tri-n-butyle |
| JPS6054939B2 (ja) * | 1977-08-04 | 1985-12-03 | 住友化学工業株式会社 | 粗製アクリル酸の精製方法 |
| US4166774A (en) * | 1977-12-05 | 1979-09-04 | The Standard Oil Company | Acrylic acid recovery and purification |
| US4317926A (en) | 1978-01-19 | 1982-03-02 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Process for preparing and recovering acrylic acid |
| TW295580B (enExample) * | 1992-01-09 | 1997-01-11 | Nippon Catalytic Chem Ind | |
| US5759358A (en) * | 1994-05-31 | 1998-06-02 | Rohm And Haas Company | Process for pure grade acrylic acid |
| JP3028925B2 (ja) * | 1995-12-05 | 2000-04-04 | 株式会社日本触媒 | アクリル酸の製造方法 |
| TW524796B (en) | 1997-11-17 | 2003-03-21 | Sumitomo Chemical Co | Method for producing acrylic acid |
| US6660505B2 (en) * | 2000-06-22 | 2003-12-09 | Cognis Corporation | Isolation of carboxylic acids from fermentation broth |
| US20030150705A1 (en) * | 2002-01-08 | 2003-08-14 | Deshpande Sanjeev D. | Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents |
| US7128813B2 (en) * | 2002-05-01 | 2006-10-31 | Rohm And Haas Company | Process for manufacturing high purity methacrylic acid |
| US20040104108A1 (en) * | 2002-12-03 | 2004-06-03 | Mason Robert Michael | High capacity purification of thermally unstable compounds |
| CN1321968C (zh) * | 2003-04-09 | 2007-06-20 | 上海华谊丙烯酸有限公司 | 共沸精馏提纯丙烯酸的方法 |
| DE102014108980A1 (de) * | 2014-06-26 | 2015-12-31 | L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Verfahren und Anlage zur Aufreinigung von Acrylsäure |
| WO2018118702A1 (en) | 2016-12-22 | 2018-06-28 | Eastman Chemical Company | Acrylic acid purification via dividing wall columns |
| CN110088075A (zh) * | 2016-12-22 | 2019-08-02 | 伊士曼化工公司 | 经由共沸蒸馏分离丙酸与丙烯酸 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2922815A (en) * | 1956-03-22 | 1960-01-26 | Solvay Werke Gmbh | Concentration of aqueous acrylic acid |
| GB995472A (en) * | 1963-05-16 | 1965-06-16 | Distillers Co Yeast Ltd | Improvements in or relating to acrylic acid production |
| GB997325A (en) * | 1963-06-20 | 1965-07-07 | Distillers Co Yeast Ltd | Recovery of acrylic acid |
| US3433831A (en) * | 1965-06-30 | 1969-03-18 | Asahi Chemical Ind | Separation and purification of acrylic acid from acetic acid by solvent extraction and azeotropic distillation with a two component solvent-entrainer system |
| DE1618612B2 (de) * | 1967-06-29 | 1973-03-15 | Knapsack AG, 5033 Hurth Knapsack | Verfahren zur gewinnung reiner acrylsaeure aus waessriger rohsaeure |
| US3666632A (en) * | 1968-10-08 | 1972-05-30 | Asahi Chemical Ind | Method for the separation of acrylic acid from aqueous solution containing acrylic acid and acetic acid |
| DE1805758C3 (de) * | 1968-10-29 | 1974-07-18 | Knapsack Ag, 5033 Huerth-Knapsack | Verfahren zur Abtrennung von Acrylsäure aus wäßriger Rohacrylsäure |
| US3527677A (en) * | 1969-03-06 | 1970-09-08 | Goodrich Co B F | Process for dehydration of aqueous acrylic acid solutions by extractive - azeotropic distillation with 2-ethylhexanol or 2-ethylhexylacrylate |
| DE1965014A1 (de) * | 1969-12-27 | 1971-07-01 | Knapsack Ag | Verfahren zur Abtrennung von Acrylsaeure aus waessriger Rohacrylsaeure |
| DE2005163A1 (de) * | 1970-02-05 | 1971-08-19 | Knapsack Ag, 5033 Knapsack | Verfahren zur Abtrennung von Acrylsäure aus wäßriger Rohacrylsaure |
-
1973
- 1973-05-18 NL NLAANVRAGE7307014,A patent/NL180579C/xx not_active IP Right Cessation
- 1973-05-21 US US362210A patent/US3859175A/en not_active Expired - Lifetime
- 1973-05-23 DE DE2326327A patent/DE2326327C3/de not_active Expired
- 1973-05-23 GB GB2465073A patent/GB1427223A/en not_active Expired
- 1973-05-24 FR FR7318907A patent/FR2185607B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2326327B2 (de) | 1981-02-19 |
| GB1427223A (en) | 1976-03-10 |
| FR2185607A1 (enExample) | 1974-01-04 |
| FR2185607B1 (enExample) | 1977-02-11 |
| DE2326327C3 (de) | 1981-12-17 |
| US3859175A (en) | 1975-01-07 |
| DE2326327A1 (de) | 1973-12-06 |
| NL180579B (nl) | 1986-10-16 |
| NL180579C (nl) | 1987-03-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| V4 | Discontinued because of reaching the maximum lifetime of a patent |