GB493948A - Improved method of high vacuum distillation - Google Patents

Improved method of high vacuum distillation

Info

Publication number
GB493948A
GB493948A GB1122037A GB1122037A GB493948A GB 493948 A GB493948 A GB 493948A GB 1122037 A GB1122037 A GB 1122037A GB 1122037 A GB1122037 A GB 1122037A GB 493948 A GB493948 A GB 493948A
Authority
GB
United Kingdom
Prior art keywords
fractions
distillation
liquids
carrier liquid
triolein
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
Application number
GB1122037A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to GB1122037A priority Critical patent/GB493948A/en
Publication of GB493948A publication Critical patent/GB493948A/en
Expired legal-status Critical Current

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
    • B01D3/10—Vacuum distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Steroid Compounds (AREA)

Abstract

In the distillation of organic substances, particularly vitamins, sterols and hormones, under a high vacuum to obtain a plurality of fractions, a carrier liquid (or liquids) is added capable of yielding distillate fractions equal in number to the fractions required from the distilland and of which one distils contemporaneously with each of the desired fractions, from which it must be readily separable by physical or chemical means. If desired, the number of carrier liquid fractions may be increased to provide intermediate flushing liquids. Examples are (1) the distillation of sterol-containing oils to obtain cholestane and stigmasterol, using as carrier liquid a mixture of tripalmitin and tricaproin or dicaproin monopalmitin; (2) the separation of free vitamin D from vitamin A esters by distillation with monocaproin dipalmitin and triolein; (3) the separation of benzpyrene from cholesteryl butyrate by molecular distillation, with oleic acid and triolein as carrier liquids; and (4) separation of indigo from dibromindigo, using dicaproin monopalmitin and triolein as carrier liquids. Specifications 476,134 and 482,881 are referred to.ALSO:In the distillation of organic substances particularly sterols, vitamins and hormones under high vacuum to obtain a plurality of fractions, a carrier liquid (or liquids) is added capable of yielding distillate fractions equal in number to the fractions required from the distilland, and of which one distils with each of the desired fractions from which it must be readily separable by chemical or physical means. If desired the number of carrier liquid fractions may be increased to provide intermediate flushing liquids. Examples are (1) the distillation of sterol - containing oils to obtain cholestane and stigmasterol, using as carrier liquid a mixture of tripalmitin or tricaproin or dicaproin monopalmitin; and (2) the separation of free vitamin D from vitamin A esters by distillation with monocaproin dipalmitin and triolein.
GB1122037A 1937-04-20 1937-04-20 Improved method of high vacuum distillation Expired GB493948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1122037A GB493948A (en) 1937-04-20 1937-04-20 Improved method of high vacuum distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1122037A GB493948A (en) 1937-04-20 1937-04-20 Improved method of high vacuum distillation

Publications (1)

Publication Number Publication Date
GB493948A true GB493948A (en) 1938-10-18

Family

ID=9982211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1122037A Expired GB493948A (en) 1937-04-20 1937-04-20 Improved method of high vacuum distillation

Country Status (1)

Country Link
GB (1) GB493948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7678930B2 (en) 2002-07-11 2010-03-16 Pronova Biopharma Norge As Process for decreasing the amount of cholesterol in a marine oil using a volatile working fluid
US7718698B2 (en) 2002-07-11 2010-05-18 Pronova Biopharma Norge As Process for decreasing environmental pollutants in an oil or a fat

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7678930B2 (en) 2002-07-11 2010-03-16 Pronova Biopharma Norge As Process for decreasing the amount of cholesterol in a marine oil using a volatile working fluid
US7718698B2 (en) 2002-07-11 2010-05-18 Pronova Biopharma Norge As Process for decreasing environmental pollutants in an oil or a fat
US7732488B2 (en) 2002-07-11 2010-06-08 Pronova Biopharma Norge As Pharmaceutical composition comprising low concentrations of environmental pollutants
EP1534807B2 (en) † 2002-07-11 2016-06-15 Pronova BioPharma Norge AS A process for decreasing the amount of cholesterol in a marine oil using a volatile working fluid

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