Abstract: The invention relates to methods of nicotine extraction from tobacco, caporal and tobacco crumb. The proposed method for extraction of nicotine from tobacco, caporal and tobacco crumb implies continuous extraction from raw material with low-boiling solvents at vapor phase followed by solvent stripper and recurrence for further reuse in the process.

Abstract: The invention relates to methods of nicotine extraction from tobacco, caporal and tobacco crumb. The proposed method for extraction of nicotine from tobacco, caporal and tobacco crumb implies continuous extraction from raw material with low-boiling solvents at vapor phase followed by solvent stripper and recurrence for further reuse in the process. The technological advantages are the opportunity to use both primary raw material and production wastes, shorter time required for extraction, cost reduction and process simplification for extraction of nicotine, reduction of concomitant substances in the target product, and no need in using acids. These advantages are achieved by the proposed extraction method with low-boiling organic solvents what results in lower consumption of chemicals, lower temperature, shorter time required for the process and additional purification of the target product and eliminates needs for high pressure to be used in technological process.