Method for pretreating crude oils and raw fats for the production of fatty acid esters

Preparation of fatty acid esters of prim. or sec. alcohols from unpurified oil containing fatty acids and sludge comprises: (i) acid catalysis of the esterification of free fatty acids and deactivating the sludge components in a raw oil or fat or recycled oil using a hygroscopic acid catalyst; (ii)...

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Bibliographische Detailangaben
Hauptverfasser:	KARLHEINZ BRUNNER, RAINER RICKER, RAINER FRISCHE
Format:	Patent
Sprache:	eng
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENTS ESSENTIAL OILS FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS,OILS, OR FATTY ACIDS OBTAINED THEREFROM FATTY ACIDS FROM FATS, OILS OR WAXES FATTY ACIDS THEREFROM GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PERFORMING OPERATIONS PERFUMES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING
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Beschreibung
Zusammenfassung:	Preparation of fatty acid esters of prim. or sec. alcohols from unpurified oil containing fatty acids and sludge comprises: (i) acid catalysis of the esterification of free fatty acids and deactivating the sludge components in a raw oil or fat or recycled oil using a hygroscopic acid catalyst; (ii) base-catalyzed reaction of the glycerin-bound fatty acids to esters using an alkaline catalyst; and (iii) separating off the glyceryl phase.