METHOD OF PRODUCTION RECONSTITUTED TOBACCO Russian patent published in 2009 - IPC A24B3/14 

FIELD: tobacco industry.

SUBSTANCE: invention refers to the technology of tobacco refuse processing. The method includes common heather blooms extraction by nonpolar liquefied gas to obtain the specified extract, mixing of the tobacco materials with liquid carbon dioxide, its extraction and blending together with periodical depressurising in the extraction mixture with pressure lower than of the moist steam of carbon dioxide at the extraction temperature. Then miscella and oil meal are separated. The oil meal is slurred in the aqueous solution of edible acid and the edible alcohol is introduced into liquor. Then liquor is formed, dried till residual humidity of 13-15%, cut and steeped in gas-liquid common heather bloom extract and separated CO₂ miscella with simultaneous pressure increase, depressurising to atmospheric pressure with simultaneous freezing of soaked carbon dioxide and its distillation is carried out to obtain in the residue the target product.

EFFECT: decrease of the duration of technological process, obtaining the reconstituted tobacco with improved organoleptical properties.