DE392988C - Process for cleaning fatty oils and fats - Google Patents

Process for cleaning fatty oils and fats

Info

Publication number
DE392988C
DE392988C DEB108135D DEB0108135D DE392988C DE 392988 C DE392988 C DE 392988C DE B108135 D DEB108135 D DE B108135D DE B0108135 D DEB0108135 D DE B0108135D DE 392988 C DE392988 C DE 392988C
Authority
DE
Germany
Prior art keywords
fats
alcohol
fatty oils
percent
oil
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
DEB108135D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB108135D priority Critical patent/DE392988C/en
Application granted granted Critical
Publication of DE392988C publication Critical patent/DE392988C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C11B3/006—Refining fats or fatty oils by extraction

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Description

Verfahren zum Reinigen fetter Öle und Fette. Bei der Behandlung fetter Öle und Fette mit Alkohol, Methylalkohol, Azeton o. dgl. sich mit Wasser mischenden Lösungsmitteln zwecks Entfernung der freien Fettsäuren, Harze, Bitter- und Schleimstoffe «-erden nicht nur die freien Fettsäuren und die sonstigen Stoffe, welche entfernt werden sollen, aufgenommen, sondern auch 2"reutralöl. Neutralöl als solches ist zwar selbst in Alkohol von 96 Vol.-Prozent und darunter so alt wie unlöslich. Wesentlich anders liegen die Verhältnisse jedoch, wenn man ein rohes Öl mit schwach verdünntem Alkohol o. dgl. behandelt. Die in einem solchen rohen Öl enthaltenen freien Fettsäuren, insbesondere aber die in demselben vorhandenen Verunreinigungen, welche aus Harzen, Schleimstoffen und Bitterstoffen bestehen, üben nämlich einen wesentlichen Einfluß auf ,lie Löslichkeitsverhältnisse aus, so daß nunmehr erhebliche Mengen Neutralöl auch von nicht zu stark verdünntem Alkohol gelöst werden. Dieses Neutralöl wird aber seinem eigentlichen Bestimmungszweck entzogen und kann nur zusammen mit der weniger wertvollen freien Fettsäure weiterverarbeitet werden.Process for cleaning fatty oils and fats. Fatter when treated Oils and fats with alcohol, methyl alcohol, acetone o. The like. Mixing with water Solvents for the purpose of removing free fatty acids, resins, bitter and slimy substances «-Not only earth the free fatty acids and the other substances that are removed should be included, but also 2 "reutral oil. Neutral oil as such is even in alcohol of 96 percent by volume and below as old as insoluble. Essential The situation is different, however, when one uses a crude oil with slightly diluted oil Alcohol o. The like. Treated. The free fatty acids contained in such a crude oil, in particular, however, the impurities present in the same, which come from resins, Mucilages and bitter substances exist, namely exert a significant influence on, left solubility ratios, so that now significant amounts of neutral oil can also be dissolved by alcohol that is not too dilute. This neutral oil will but withdrawn from its actual intended purpose and can only be used together with the less valuable free fatty acids are further processed.

1s ist nun gefunden worden, daß man bei ler Reiniguii- von Fetten und Ölen durch Alkohol o. dgl. wesentlich günstigere Erfolge erzielt, wenn man der Auswaschung mit dem .tärkeren Lösungsmittel eine solche mit dem Teichen, aber bedeutend mehr verdünnten Lösungsmittel vorangehen läßt. Hierbei muß das Lösungsmittel so stark verdünnt angewandt werfen, daß es nur die Harze, Schleim-Stoffe und Bitterstoffe aufnimmt, dagegen nur wenig freie Fettsäure und gar kein Neutralöl. Bei dieser Vorwaschung werden dann vor allem die Stoffe entfernt, welche die Lösung des Neutralöles in Alkohol von 9o bis 96 Vol.-Prozent begünstigen würden. Alsdann läßt man eine zweite Waschung mit stärkerem, z. B. Alkohol von 9o bis 96 Vol.-Prozent folgen.It has now been found that when cleaning fats and oils with alcohol or the like Leaching with the stronger solvent is the same with the pond, but significant more dilute solvent precedes. Here the solvent must be like this Thrown heavily diluted, that it only contains the resins, mucous substances and bitter substances absorbs, on the other hand only a little free fatty acid and no neutral oil at all. During this pre-wash then mainly the substances are removed which the solution of the neutral oil in Alcohol from 9o to 96 percent by volume would favor. Then leave a second Wash with stronger, e.g. B. Alcohol of 9o to 96 percent by volume follow.

Das günstigere Ergebnis läßt sich an dem Gehalt an freier Fettsäure in dem Rückstand des alkoholischen Auszuges leicht erkennen.The more favorable result can be derived from the free fatty acid content Easily recognized in the residue of the alcoholic extract.

Bei Behandeln eines Öles mit einem freien Fettsäuregehalt von i Prozent mit 96prozentigem Alkohol ohne Vonvaschung enthielt der Rückstand i2 Prozent freie Fettsäure. Nahm man erst eine Waschung mit Wasser vor und ließ dann die Alkoholwaschung folgen, so war der Fettsäuregehalt auf ----Prozent gestiegen. Bei einer Vorbehandlung mit 4oprozentigem Alkohol stieg der Fettsäuregehalt noch mehr und betrug 35 Prozent.When treating an oil with a free fatty acid content of 1 percent with 96 percent alcohol without washing, the residue contained 12 percent free Fatty acid. First you did a wash with water and then left the alcohol wash follow, the fatty acid content had risen to ---- percent. With a pre-treatment with 4% alcohol the fatty acid content rose even more and amounted to 35%.

Ein weiterer Vorteil der Vorbehandlung besteht darin, daß sowohl das Neutralöl als auch die freie Fettsäure eine wesentlich reinere Beschaffenheit erhalten, als wenn unmittelbar mit starkem Lösungsmittel ausgewaschen wird.Another advantage of pretreatment is that both Neutral oil as well as the free fatty acid get a much purer consistency, than when washing immediately with a strong solvent.

Iran verfährt beispielsweise so, daß man das Neutralöl bei einer Temperatur von 3o° C mit Alkohol von 4.o -#Tol.-Prozent guswäscht, die alkoholische Lösung abtrennt und dann eine zweite Behandlung des Öles mit Alkohol von 9o Vol; Prozent bei einer Temperatur von etwa 5o' C folgen läßt.Iran, for example, proceeds in such a way that the neutral oil is produced at a temperature from 3o ° C with alcohol from 4.o - # tol.-percent washes the alcoholic solution separates and then a second treatment of the oil with alcohol of 90 vol; percent can follow at a temperature of about 5o'C.

Claims (1)

PATENTANSPRUCH: Verfahren zum Reinigen fetter öle und Fette, dadurch gekennzeichnet, daß man zunächst eine Vorwaschung tnit stark verdünntem Alkohol o. dgl. vornimmt und dann eine zweite Waschung mit dem gleichen, aber konzentrierteren Lösungsmittel folgen läßt. PATENT CLAIM: Process for cleaning fatty oils and fats, characterized in that a pre-wash is first carried out with highly diluted alcohol or the like and then followed by a second wash with the same but more concentrated solvent.
DEB108135D 1923-01-26 1923-01-26 Process for cleaning fatty oils and fats Expired DE392988C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB108135D DE392988C (en) 1923-01-26 1923-01-26 Process for cleaning fatty oils and fats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB108135D DE392988C (en) 1923-01-26 1923-01-26 Process for cleaning fatty oils and fats

Publications (1)

Publication Number Publication Date
DE392988C true DE392988C (en) 1924-03-27

Family

ID=6992101

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB108135D Expired DE392988C (en) 1923-01-26 1923-01-26 Process for cleaning fatty oils and fats

Country Status (1)

Country Link
DE (1) DE392988C (en)

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