GB480885A - Improvements in high vacuum distillation of oily materials - Google Patents
Improvements in high vacuum distillation of oily materialsInfo
- Publication number
- GB480885A GB480885A GB28299/36A GB2829936A GB480885A GB 480885 A GB480885 A GB 480885A GB 28299/36 A GB28299/36 A GB 28299/36A GB 2829936 A GB2829936 A GB 2829936A GB 480885 A GB480885 A GB 480885A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vitamin
- aminophenol
- vacuum distillation
- collected
- fractions
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/12—Refining fats or fatty oils by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
In the high-vacuum distillation of oils, fats, waxes and the like containing easily oxidizable materials such as vitamins A, D and E, oxidation of these vitamins, as by absorbed oxygen or peroxides, is prevented by effecting the distillation in the presence of an antioxidant having a volatility approximating to that of the desired distillate; 0,001-1,0 per cent is suitable. The antioxidant may be left in or removed from the collected fraction. Short-path high-vacuum distillation is preferably employed with distilling temperatures of 70-250 DEG C. A mixture of antioxidants may be used each having a volatility near that of the fractions to be collected. Antioxidants specified p comprise hydroquinone, pyrogallol, furfurol, pyrocatechol, hydroxyhydroquinone, p-amino-phenol, 1-2-4-trihydroxybenzene, 2-amino-5-hydroxytoluene, benzyl - p - aminophenol, p - hydroxy - phenylmorpholine, dibenzyl-p-aminophenol, 1-5-dihydroxynaphthalene, 2-4 and p-p1-diaminodiphenylamines. Fish liver and body oils to which the process may be applied comprise tuna, jaw, ling, cod, halibut, salmon, herring, mackerel, sardine and menhaden. In one example 100 litres of cod liver oil and 1 to 10 grams of 1 : 2 : 4-trihydroxy-benzene are distilled under short-path conditions at ,001 mm. of mercury. The chief vitamin constituent of the respective fractions collected at 120 DEG , 150 DEG , 170 DEG and 200 DEG C., is vitamin A, vitamin D, vitamin A esters and vitamin D esters respectively. The trihydroxy-benzene collects mainly in the early and middle fractions.ALSO:In the high vacuum distillation of oils and fats containing vitamins A, D and E, which may also contain absorbed oxygen or peroxides, oxidation of the former by the latter is prevented by effecting the distillation in the presence of an antioxidant having a volatility approximating to that of the desired distillate, and collecting a fraction containing the vitamins and antioxidant in admixture. Short-path high vacuum distillation is preferably employed with distilling temperatures of 70-250 DEG C. A mixture of antioxidants may be used each having a volatility near that of the fractions to be collected. Antioxidants specified comprise hydroquinone, pyrogallol, furfurol, pyrocatechol, hydroxyhydroquinone, p-aminophenol, 1.2.4-trihydroxybenzene, 2-amino-5-hydroxytoluene, benzyl-p-aminophenol, p-hydroxy - phenylmorpholine, dibenzyl - p-aminophenol, 1.5-dihydroxynaphthalene, 2.4 and p-p1-diaminodiphenylamine. Fish liver and body oils to which the process may be applied comprise tuna, jaw, ling cod, halibut, salmon, herring, mackerel, sardine and menhaden. In an example, 100 litres of cod liver oil and 1 to 10 grams of 1 : 2 : 4-trihydroxybenzene are distilled under short path conditions at ,001 mm. of mercury. The chief constituent of each of the fractions collected at 120 DEG , 150 DEG , 170 DEG and 200 DEG C., comprises vitamin A, vitamin D, vitamin A esters and vitamin D esters respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US480885XA | 1935-10-26 | 1935-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB480885A true GB480885A (en) | 1938-03-02 |
Family
ID=21952667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28299/36A Expired GB480885A (en) | 1935-10-26 | 1936-10-17 | Improvements in high vacuum distillation of oily materials |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE881713C (en) |
| FR (1) | FR812734A (en) |
| GB (1) | GB480885A (en) |
| NL (1) | NL46121C (en) |
-
0
- NL NL46121D patent/NL46121C/xx active
-
1936
- 1936-10-17 GB GB28299/36A patent/GB480885A/en not_active Expired
- 1936-10-23 DE DEE3305D patent/DE881713C/en not_active Expired
- 1936-10-26 FR FR812734D patent/FR812734A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR812734A (en) | 1937-05-15 |
| DE881713C (en) | 1953-07-02 |
| NL46121C (en) |
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