B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 20/12 (2006.01) A24B 15/24 (2006.01) B01D 15/08 (2006.01) B01J 20/20 (2006.01)
Patent
CA 2711641
The present invention provides for a process for removing nitrogen containing compounds from tobacco with minimum removal of desired compounds. The process includes the steps of mixing a tobacco containing material with an aqueous solvent to form an extract; the extract is then separated from the tobacco containing material and contacted with an adsorbent material. The adsorbent material is selected from the group consisting of a mixture of bentonite and activated carbon material, .beta.-cyclodextrin, cellulose acetate and combinations thereof. The extract is then added back to a tobacco containing material that may or may not have been processed.
La présente invention concerne un procédé permettant de retirer les composés azotés du tabac, avec un taux d'élimination miminal des composés désirés. Le procédé consiste à mélanger le tabac avec un solvant aqueux pour obtenir un extrait; l'extrait est ensuite séparé du tabac et mis en contact avec une matière adsorbante. Cette matière est choisie parmi le groupe formé d'un mélange de bentonite et de carbone activé, de bêta-cyclodextrine, d'acétate de cellulose et de combinaisons de ces produits. L'extrait est ensuite remis en mélange avec le tabac, transformé ou non.
Hayes Brad L.
Mua John-Paul
Brown & Williamson Holdings Inc.
Fetherstonhaugh & Co.
LandOfFree
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