GB621812A - Process for dehydrating castor oil - Google Patents
Process for dehydrating castor oilInfo
- Publication number
- GB621812A GB621812A GB30107/46A GB3010746A GB621812A GB 621812 A GB621812 A GB 621812A GB 30107/46 A GB30107/46 A GB 30107/46A GB 3010746 A GB3010746 A GB 3010746A GB 621812 A GB621812 A GB 621812A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- oil
- per cent
- dehydrated
- temperature
- 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 3
- 235000019438 castor oil Nutrition 0.000 title abstract 3
- 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 3
- 238000000034 method Methods 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 abstract 6
- 239000003921 oil Substances 0.000 abstract 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 2
- 229910052753 mercury Inorganic materials 0.000 abstract 2
- 235000011007 phosphoric acid Nutrition 0.000 abstract 2
- 239000010453 quartz Substances 0.000 abstract 2
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000003701 inert diluent Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005292 vacuum distillation 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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Castor oil is dehydrated to form a drying oil by passing it at a temperature between about 200 DEG and 325 DEG C. and at a reduced pressure of not more than 50 mm. of mercury over a catalyst comprising a chemical compound formed by calcining a liquid phosphoric acid with a siliceous absorbent to a temperature at which chemical combination takes place, e.g. for 10 hours at 450 DEG C. in the case of a mixture of orthophosphoric acid and kieselguhr containing about 60 per cent of total P2O5, the free P2O5 in the calcined catalyst being thereby reduced to 4.4 per cent. The catalyst may be placed in a stainless steel reaction tube within an electrically heated furnace fitted with a preheater, the portion of the tube in the preheater being packed with quartz chips. When castor oil is passed over this catalyst at an hourly space velocity of 1, a temperature of 275 DEG C., and a pressure of 30 mm. of mercury, 89 per cent by weight of dehydrated oil is collected in the receiver, while 1.9 per cent and 1.3 per cent respectively of such oil can be recovered from the catalyst and the quartz chips respectively when these are flushed with nitrogen. The catalyst is regenerated by burning in air. The process may be carried out in the presence of an inert diluent such as paraffinic hydrocarbons of the gas oil type sufficiently low-boiling to be separable by vacuum distillation from the dehydrated oil, but high-boiling enough to remain liquid during the dehydration reaction. U.S.A. Specification 1,993,513 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US621812XA | 1943-05-26 | 1943-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB621812A true GB621812A (en) | 1949-04-20 |
Family
ID=22040727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30107/46A Expired GB621812A (en) | 1943-05-26 | 1946-10-09 | Process for dehydrating castor oil |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB621812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389156A (en) * | 1965-03-22 | 1968-06-18 | Ashland Oil Inc | Process for isomerizing unsaturated fatty acids or derivatives thereof |
-
1946
- 1946-10-09 GB GB30107/46A patent/GB621812A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389156A (en) * | 1965-03-22 | 1968-06-18 | Ashland Oil Inc | Process for isomerizing unsaturated fatty acids or derivatives thereof |
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