JPS54163516A - Production of sorbic acid - Google Patents
Production of sorbic acidInfo
- Publication number
- JPS54163516A JPS54163516A JP7165478A JP7165478A JPS54163516A JP S54163516 A JPS54163516 A JP S54163516A JP 7165478 A JP7165478 A JP 7165478A JP 7165478 A JP7165478 A JP 7165478A JP S54163516 A JPS54163516 A JP S54163516A
- Authority
- JP
- Japan
- Prior art keywords
- sorbic acid
- crotonaldehyde
- ketene
- urea
- polyester
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: When a polyester from ketene and crotonaldehyde is decomposed, a urea or thioureac compound is added thereto to avoid the formation of colored and resinous substances, thus producing the sorbic acid that can be readily purified and used for food additives.
CONSTITUTION: The decomposition of a polyester from ketene and crotonaldehyde is effected in the presence of 0.4W5.0 wt% of a urea or thiourea compound or their salt, to produce little colored and white sorbic acid.
EFFECT: The difficulties of safety and handling encountered when hydrazine is used is solved and the equipment is protected from corrosion.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7165478A JPS54163516A (en) | 1978-06-13 | 1978-06-13 | Production of sorbic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7165478A JPS54163516A (en) | 1978-06-13 | 1978-06-13 | Production of sorbic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54163516A true JPS54163516A (en) | 1979-12-26 |
| JPS5645895B2 JPS5645895B2 (en) | 1981-10-29 |
Family
ID=13466802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7165478A Granted JPS54163516A (en) | 1978-06-13 | 1978-06-13 | Production of sorbic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54163516A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6495717B1 (en) | 1999-05-18 | 2002-12-17 | Daicel Chemical Industries, Ltd. | Process for producing sorbic acid or salts thereof |
| US6509498B1 (en) | 1998-09-29 | 2003-01-21 | Daicel Chemical Industries, Ltd. | Process for the preparation of sorbic acid or salts thereof |
| US6525218B2 (en) | 2000-08-08 | 2003-02-25 | Daicel Chemical Industries, Ltd. | Process for producing sorbic acid |
| CN100430362C (en) * | 2006-05-25 | 2008-11-05 | 王国军 | Process for preparing high purity crystalline sorbic acid |
| US8404890B2 (en) | 2010-11-10 | 2013-03-26 | Wisconsin Alumni Research Foundation | Production of 2,4-hexadienoic acid and 1,3-pentadiene from 6-methyl-5,6-dihydro-2-pyrone |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161698U (en) * | 1980-05-06 | 1981-12-01 |
-
1978
- 1978-06-13 JP JP7165478A patent/JPS54163516A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6509498B1 (en) | 1998-09-29 | 2003-01-21 | Daicel Chemical Industries, Ltd. | Process for the preparation of sorbic acid or salts thereof |
| US6495717B1 (en) | 1999-05-18 | 2002-12-17 | Daicel Chemical Industries, Ltd. | Process for producing sorbic acid or salts thereof |
| US6525218B2 (en) | 2000-08-08 | 2003-02-25 | Daicel Chemical Industries, Ltd. | Process for producing sorbic acid |
| CN100430362C (en) * | 2006-05-25 | 2008-11-05 | 王国军 | Process for preparing high purity crystalline sorbic acid |
| US8404890B2 (en) | 2010-11-10 | 2013-03-26 | Wisconsin Alumni Research Foundation | Production of 2,4-hexadienoic acid and 1,3-pentadiene from 6-methyl-5,6-dihydro-2-pyrone |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5645895B2 (en) | 1981-10-29 |
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