$A process for the fractional crystallization of substances, a crystallizer suitable for working the process, and use of the process$

A process for the fractional crystallization of substances, a crystallizer suitable for working the process, and use of the process

In the process according to the invention for fractionating substances, particularly paraffins, oils, fats and waxes, which when crystallised have poor adhesion to the substantially vertical crystallisation surfaces (39) of a crystalliser, screen-like supporting structures, e.g. perforated metal she...

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Bibliographische Detailangaben
Hauptverfasser:	JANS, BERNHARD J, STEPANSKI, MANFRED
Format:	Patent
Sprache:	eng
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY CRACKING HYDROCARBON OILS DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PERFUMES PETROLEUM, GAS OR COKE INDUSTRIES 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 PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING
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Beschreibung
Zusammenfassung:	In the process according to the invention for fractionating substances, particularly paraffins, oils, fats and waxes, which when crystallised have poor adhesion to the substantially vertical crystallisation surfaces (39) of a crystalliser, screen-like supporting structures, e.g. perforated metal sheets (31) bent in a zigzag, are disposed between the crystallisation surfaces (39) of a crystalliser. The crystals (51) becoming detached from the crystallisation surfaces (39) during the sweating phase are left suspended in horizontal strips in the triangular zones (41) on the perforated sheet (31) and remain in thermal contact with the crystallisation surface (39) and sweat out the liquid phase (55). The mother liquor (55) drips off, in some cases also between the crystals (51) and the crystallisation surface (39), with the result that drip channels are melted by the heated mother liquor and thus opened.