GB967352A - Production of unsaturated aliphatic acids - Google Patents
Production of unsaturated aliphatic acidsInfo
- Publication number
- GB967352A GB967352A GB1896362A GB1896362A GB967352A GB 967352 A GB967352 A GB 967352A GB 1896362 A GB1896362 A GB 1896362A GB 1896362 A GB1896362 A GB 1896362A GB 967352 A GB967352 A GB 967352A
- Authority
- GB
- United Kingdom
- Prior art keywords
- production
- unsaturated aliphatic
- heating
- aliphatic acids
- boiling point
- 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
Links
- 125000001931 aliphatic group Chemical group 0.000 title 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 125000005395 methacrylic acid group Chemical class 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000008096 xylene Substances 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
- C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
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)
Abstract
Acrylic or methacrylic acids are prepared by heating the ammonium salt of the acid in solution or suspension in an inert liquid organic medium with a boiling point or minimum boiling point under the reaction conditions not lower than 80 DEG C. Benzene, toluene, ethylbenzene or a xylene are mentioned as solvents, and the condensable distillate is refluxed during the heating. Ammonia is evolved and the free acid recovered by extraction or distillation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1896362A GB967352A (en) | 1962-05-17 | 1962-05-17 | Production of unsaturated aliphatic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1896362A GB967352A (en) | 1962-05-17 | 1962-05-17 | Production of unsaturated aliphatic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB967352A true GB967352A (en) | 1964-08-19 |
Family
ID=10121449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1896362A Expired GB967352A (en) | 1962-05-17 | 1962-05-17 | Production of unsaturated aliphatic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB967352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0884300A4 (en) * | 1996-02-26 | 1999-09-01 | Nippon Soda Co | Process for preparing free alpha-hydroxy acids from ammonium salts thereof |
| DE102009001008A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Reactive extraction of free organic acids from their ammonium salts |
| WO2010094554A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Method for producing a free acid from the salt thereof |
-
1962
- 1962-05-17 GB GB1896362A patent/GB967352A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0884300A4 (en) * | 1996-02-26 | 1999-09-01 | Nippon Soda Co | Process for preparing free alpha-hydroxy acids from ammonium salts thereof |
| US6066763A (en) * | 1996-02-26 | 2000-05-23 | Nippon Soda Co., Ltd. | Process for preparing free α-hydroxy acids from ammonium salts thereof |
| DE102009001008A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Reactive extraction of free organic acids from their ammonium salts |
| WO2010094554A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Method for producing a free acid from the salt thereof |
| DE102009009580A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Process for the preparation of free acids from their salts |
| WO2010094630A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Reactive extraction of free organic acids from ammonium salts thereof |
| CN102325746A (en) * | 2009-02-19 | 2012-01-18 | 赢创德固赛有限公司 | Reactive Extraction of Free Organic Acids from Ammonium Salts of Organic Acids |
| JP2012518022A (en) * | 2009-02-19 | 2012-08-09 | エボニック デグサ ゲーエムベーハー | Reactive extraction of free organic acids from their ammonium salts. |
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