GB698548A - Improvements in the distillation of tall oil - Google Patents
Improvements in the distillation of tall oilInfo
- Publication number
- GB698548A GB698548A GB2572950A GB2572950A GB698548A GB 698548 A GB698548 A GB 698548A GB 2572950 A GB2572950 A GB 2572950A GB 2572950 A GB2572950 A GB 2572950A GB 698548 A GB698548 A GB 698548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fatty acids
- pipe
- column
- still
- acids
- 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
- 239000003784 tall oil Substances 0.000 title abstract 3
- 238000004821 distillation Methods 0.000 title 1
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 9
- 229930195729 fatty acid Natural products 0.000 abstract 9
- 239000000194 fatty acid Substances 0.000 abstract 9
- 150000004665 fatty acids Chemical class 0.000 abstract 9
- 239000002253 acid Substances 0.000 abstract 3
- 150000007513 acids Chemical class 0.000 abstract 3
- 239000003921 oil Substances 0.000 abstract 3
- 239000011347 resin Chemical class 0.000 abstract 3
- 229920005989 resin Chemical class 0.000 abstract 3
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000004508 fractional distillation Methods 0.000 abstract 1
- 150000001261 hydroxy acids Chemical class 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
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Tall oil is subjected to two-stage fractional distillation under reduced pressure (below 20 mm. Hg) and in the presence of steam. The bulk of the fatty acid content of the oil is taken overhead in the first stage; and the bottoms from the first stage are separated, in the second stage, into residual fatty acids and resin acids as two separate distillates, a pitch together with other non-volatile components as residue. The oil is preferably distilled in layers of less than 3 cm. thickness; and the rate of flow is adjusted so that the time-of-residence in <PICT:0698548/III/1> the apparatus is less than 15 minutes. Tall oil containing 45 per cent resin acids, 45 per cent fatty acids, 2 per cent hydroxy-acids and 8 per cent unsaponifiable matter, is supplied through line 1 into fractionating column 2, and through line 23 into still 3. The oil supplied through line 1 is uniformly distributed over the whole crosssection of the column. The still 3 is supplied through line 4 with high-pressure wet steam. The column is maintained under a pressure less than 20 mm. Hg. by condensers (not shown) connected to pipe 12. The head of the column is maintained at about 200 DEG C by a dephlegmator (not shown). The overhead vapours are passed to cooler 6, maintained at about 150 DEG -180 DEG C, wherein C18 fatty acids are condensed; the condensate is collected in container 7. The uncondensed vapours pass-on to cooler 9 wherein C18 fatty acids are condensed. The lower fatty acids and steam are led-off to further condensers through pipe 12. The residue from still 3 is fed through pipe 13 into the still 14 of column 16, which is also maintained under a pressure less than 20 mm. Steam at about 290 DEG -310 DEG C is passed into the still 14 through pipe 15, and the head of column 16 is maintained at 190 DEG -200 DEG C. Residual fatty acids are withdrawn from the head of column 16 through pipe 17, pure resin acids are run-off through pipe 20, a non-volatile residue is drawn-off through pipe 22. The residual fatty acids may be fed to the apparatus wherein fractional condensation of the bulk of the fatty acids is being effected. Specification 640,244 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2572950A GB698548A (en) | 1950-10-23 | 1950-10-23 | Improvements in the distillation of tall oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2572950A GB698548A (en) | 1950-10-23 | 1950-10-23 | Improvements in the distillation of tall oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB698548A true GB698548A (en) | 1953-10-21 |
Family
ID=10232341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2572950A Expired GB698548A (en) | 1950-10-23 | 1950-10-23 | Improvements in the distillation of tall oil |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB698548A (en) |
-
1950
- 1950-10-23 GB GB2572950A patent/GB698548A/en not_active Expired
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