Detoxication of tobacco, cigars and cigarettes - by adding materials which generate catalysts to lower toxic material content on burning

摘要

Detoxication of tobacco, cigars and/or cigarettes takes place by adding matls. which, on burning, generate an adequate quantity of a catalyst to lower the content of toxic matls. in combustion gas and in smoke. The matls. may be converted to such a catalyst and/or are the catalysts and are activated on burning the tobacco. The matls. added form a catalyst in the flame-zone and/or through the hot combustion gases. Active catalyst formation may take place through structural changes, decompsn., phase-conversions, solid body reactions of =2 components. Catalyst is highly active. Catalyst is present at different temps. depending on position and distance from combustion zone. Catalyst is not poisoned. Detoxication extends to environment. Unstable catalysts may also be used. CO can be converted to CO2 and NO to N2. Catalyst also acts by adsorption and/or absorption, e.g., to reduce nicotine content. The catalyst-forming matls. contain main or side-gp. metals or cpds., pref. Ti, V, Cr, Mn, Fe, Co, Ni, Cu and/or Zn. In an example, addn. of 5% Pb nitrate to tobacco, lowered CO content of waste gas to 42% and NO content to 58% of quantities in untreated tobacco smoke.