During the cigarette rolling and processing stages, small amounts of shredded tobacco, tobacco dust, and other defective materials inevitably accumulate. Reintroducing these into the production process can compromise cigarette quality, yet simply discarding them leads to environmental pollution and resource wastage. These tobacco remnants contain valuable compounds, including nicotine, solanesol, sugars, and organic acids. By using techniques like supercritical CO2 extraction or solvent extraction, nicotine, tobacco oil, and other valuable components can be recovered. This approach not only transforms waste into valuable resources but also enhances overall economic efficiency and environmental protection.
In nicotine extraction, water plays a crucial role as an additive. By utilizing supercritical CO2 with water and ethanol as co-solvents, and optimizing the tobacco's moisture content, nicotine's solubility in supercritical CO2 improves, leading to more effective extraction. Nicotine has extensive applications in the chemical, pesticide, and pharmaceutical industries. Demand is particularly high for its use as an intermediate raw material in treating cardiovascular and skin diseases. High-purity natural nicotine, especially, is increasingly sought in the international market. Starting with tobacco leaves, the process employs supercritical CO2 extraction, acid-base pretreatment, and column chromatography to separate and purify nicotine, yielding a product with over 98% purity.
If you need such extraction equipment, you can contact us immediately for more details!