Method for recycling heptane and saxol from waste saxol containing heptane

The invention provides a method for recycling heptane and saxol from waste saxol containing heptane, relating to a separation method, equipment and device in the chemical industry field. In the method, Level 1-3 wiped-film evaporation or molecular distillation is carried out for separation, the evap...

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Bibliographische Detailangaben
Hauptverfasser:	XUAN YAOMING, LIU HUA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CRACKING HYDROCARBON OILS FUELS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL 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 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:	The invention provides a method for recycling heptane and saxol from waste saxol containing heptane, relating to a separation method, equipment and device in the chemical industry field. In the method, Level 1-3 wiped-film evaporation or molecular distillation is carried out for separation, the evaporation temperature is 40-95 DEG C, the system vacuum degree is an absolute pressure of 100-3000Pa, and vacuum is obtained by using a dry vacuum pump or dry vacuum unit. The equipment and device comprise a wiped-film evaporator or molecular still, a cooler, a receiving tank, the dry vacuum pump or dry vacuum unit, a saxol receiving tank, a condenser, a heptane receiving tank, a material feeding pump, a centrifuging solvent pump and an impurity receiving tank. The invention has the following advantages: the process is simple, and the recycled saxol has good quality and high content up to 99.99% or above; the requirement for the condensation temperature of the heptane is low, so that the heptane can be fully recycled