GB691484A - Improved process of dehydrating castor oil - Google Patents
Improved process of dehydrating castor oilInfo
- Publication number
- GB691484A GB691484A GB1934950A GB1934950A GB691484A GB 691484 A GB691484 A GB 691484A GB 1934950 A GB1934950 A GB 1934950A GB 1934950 A GB1934950 A GB 1934950A GB 691484 A GB691484 A GB 691484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- castor oil
- acid
- sulphuric acid
- added
- catalyst
- 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
- 239000004359 castor oil Substances 0.000 title abstract 5
- 235000019438 castor oil Nutrition 0.000 title abstract 5
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 3
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- 239000001117 sulphuric acid Substances 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 230000018044 dehydration Effects 0.000 abstract 2
- 238000006297 dehydration reaction Methods 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 2
- 238000010923 batch production Methods 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000010685 fatty oil Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F5/00—Obtaining drying-oils
- C09F5/06—Obtaining drying-oils by dehydration of hydroxylated fatty acids or oils
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
In the catalytic dehydration of castor oil with diluted sulphuric acid as the catalyst, the acid is added in the form of a preformed emulsion in a fatty oil, such as in castor oil itself. Sulphuric acid of 80 per cent strength at the most and preferably from 60 to 70 per cent is used. The acid emulsion is preferably added gradually in the course of the process to the castor oil, which is at reaction temperature. A batch or continuous process may be used, in the latter the catalyst being added at various stages of the reaction. The reaction temperatures preferably range from 240 DEG C to 250 DEG C, and normal or preferably reduced pressure may be used. The dehydrated castor oil may be subsequently bodied by further heating, or the bodying may be effected simultaneously with the dehydration by using a higher reaction temperature, such as 280 DEG C. The process results in a saving of sulphuric acid with less risk of discolouration and polymerization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1934950A GB691484A (en) | 1950-08-02 | 1950-08-02 | Improved process of dehydrating castor oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1934950A GB691484A (en) | 1950-08-02 | 1950-08-02 | Improved process of dehydrating castor oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB691484A true GB691484A (en) | 1953-05-13 |
Family
ID=10127863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1934950A Expired GB691484A (en) | 1950-08-02 | 1950-08-02 | Improved process of dehydrating castor oil |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB691484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013011226A1 (en) | 2011-07-19 | 2013-01-24 | Arkema France | Process for synthesizing omega-functionalized acids from fatty acids or fatty esters |
-
1950
- 1950-08-02 GB GB1934950A patent/GB691484A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013011226A1 (en) | 2011-07-19 | 2013-01-24 | Arkema France | Process for synthesizing omega-functionalized acids from fatty acids or fatty esters |
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