Tobacco – Cigar or cigarette making – Tobacco feeding
Patent
1976-12-21
1978-12-26
Vertiz, O. R.
Tobacco
Cigar or cigarette making
Tobacco feeding
131143, 423194, 423208, A24B 314
Patent
active
041311175
ABSTRACT:
This disclosure relates to a process for selectively removing and recovering potassium nitrate in a relatively pure state from tobacco, and especially from Burley tobacco stems. The process comprises the steps of (1) contacting tobacco plant parts with water to obtain an aqueous extract and a fibrous tobacco residue, (2) concentrating the extract, (3) cooling the extract, and (4) separating and recovering the potassium nitrate crystals formed therein. The denitrated aqueous extract is recombined with the fibrous tobacco residue as in making reconstituted tobacco and the like. The purified potassium nitrate is suitable without further purification to use as a fertilizer, thus eliminating costly disposal problems.
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Kirk-Othmer, Encyclopedia of Chemical Technology, Second Edition, vol. 16 (1969), pp. 393, 394.
Gellatly Grant
Kite George F.
Uhl Richard G.
Hutcheson Susan A.
Inskeep George E.
Langel Wayne A.
Palmer, Jr. Arthur I.
Philip Morris Incorporated
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