GB803238A - An improved process for purifying fermentation or synthetic ethyl alcohol - Google Patents

An improved process for purifying fermentation or synthetic ethyl alcohol

Info

Publication number
GB803238A
GB803238A GB5904/57A GB590457A GB803238A GB 803238 A GB803238 A GB 803238A GB 5904/57 A GB5904/57 A GB 5904/57A GB 590457 A GB590457 A GB 590457A GB 803238 A GB803238 A GB 803238A
Authority
GB
United Kingdom
Prior art keywords
sulphite
alcohol
mixture
rectification
maintaining
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
GB5904/57A
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.)
EN COMMANDITE SIMPLE DUMONT FR
Original Assignee
EN COMMANDITE SIMPLE DUMONT FR
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 EN COMMANDITE SIMPLE DUMONT FR filed Critical EN COMMANDITE SIMPLE DUMONT FR
Publication of GB803238A publication Critical patent/GB803238A/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
    • B01D3/001—Processes specially adapted for distillation or rectification of fermented solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Fermentation or synthetic ethanol is purified by mixing the crude alcohol with an alkali metal sulphite, e.g. sodium sulphite, maintaining the sulphite in contact with the alcohol for a period (e.g. 10 hours) sufficient to allow it to react with impurities contained in the alcohol, and then subjecting the mixture to rectification. Potassium sulphite or lithium sulphite may also be used and, if the pH conditions allow, ammonium sulphite. Controlled pH conditions are suitably maintained, particularly in the case of yeast fermentations; e.g. a mixture of monosodium phosphate and disodium phosphate or a mixture of sulphuric acid and disodium phosphate, is preferably added, for maintaining the pH in the vicinity of the neutral point. In an example, molasses alcohol of 96 DEG G.L., having disagreeable taste and smell, is diluted to 70 DEG G.L.; and 10 grm. of pure sodium sulphite, Na2SO37H2O, are added per litre of alcohol. After a contact time of 10 hours between the sulphite and alcohol, the mixture is subjected to rectification. The carbonyl compounds are collected almost quantitatively in the head fraction. The middle fraction consists of 96 DEG G.L. alcohol of neutral smell and taste.
GB5904/57A 1956-02-21 1957-02-21 An improved process for purifying fermentation or synthetic ethyl alcohol Expired GB803238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE803238X 1956-02-21

Publications (1)

Publication Number Publication Date
GB803238A true GB803238A (en) 1958-10-22

Family

ID=3880968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5904/57A Expired GB803238A (en) 1956-02-21 1957-02-21 An improved process for purifying fermentation or synthetic ethyl alcohol

Country Status (1)

Country Link
GB (1) GB803238A (en)

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