| 摘要 |
<p>An improved process for producing high purity nicotine. The process involves passing a solution of less pure nicotine in a non aqueous solvent through a cation exchange resin such that the color is retained on the resin, and the nicotine passes through. The process eliminates the need for distillation to separate the nicotine from the color-causing compounds. The solvent used in the process is a fluorinated hydrocarbon that is quantitatively recovered and re-used. It is non-flammable, non-ozone depleting, and has low toxicity.</p> |
