Method for extracting 1-methyl-2-(3-pyridyl) tetrahydropyrrole

The invention discloses a method for extracting 1-methyl-2-(3-pyridyl) tetrahydropyrrole, which comprises the following steps of: grinding tobacco biomass, pyrolyzing and collecting condensed liquid of the biomass pyrolysis oil gas; standing the condensed liquid to obtain 1-methyl-2-(3-pyridyl) tetr...

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Bibliographische Detailangaben
Hauptverfasser:	LONG MINNAN, LAI HONGMEI, REN DEAN, GAN LIHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS FUELS HETEROCYCLIC COMPOUNDS LUBRICANTS METALLURGY ORGANIC CHEMISTRY PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	The invention discloses a method for extracting 1-methyl-2-(3-pyridyl) tetrahydropyrrole, which comprises the following steps of: grinding tobacco biomass, pyrolyzing and collecting condensed liquid of the biomass pyrolysis oil gas; standing the condensed liquid to obtain 1-methyl-2-(3-pyridyl) tetrahydropyrrole mother solution in the middle layer; alkalizing the mother solution, and adding organic solvent with high distribution coefficient for extraction; evaporating the extraction solution to remove the organic solvent to obtain first crude extract; dissolving out the 1-methyl-2-(3-pyridyl) tetrahydropyrrole from the first crude extract by low-polarity organic solvent at 20-80 degrees centigrade; removing the solvent in the substance dissolved out to obtain second crude extract; and decompressing and distilling the crude extract, and collecting distillate of 160-170 degrees centigrade under 4.0-6.5kPa to obtain 1-methyl-2-(3-pyridyl) tetrahydropyrrole pure product. The invention realizes the aim of comprehe