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Process for the extraction of nicotine from tobacco

  • US 4,153,063 A
  • Filed: 08/23/1973
  • Issued: 05/08/1979
  • Est. Priority Date: 09/02/1970
  • Status: Expired due to Term
First Claim
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1. A process for the selective aroma preserving extraction of nicotine from tobacco with normally gaseous solvents characterized in that the tobacco is extracted with the said solvent in the presence of at least 10% by weight of moisture based on the weight of the tobacco either in the liquid state at a pressure of from about 65 to 300 atmospheres or in the supercritical state at a temperature from the critical temperature of the solvent to about 100°

  • C. at a pressure of from about 70 to 1500 atmospheres.

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