Nicotine is an alkaloid mainly found in Solanaceae plants. It is widely used in the field of medicine and chemical industry. In our country, a large amount of waste tobacco leaves are discarded every year. The natural nicotine contained in them is very valuable for extraction, so it is a pity to throw it away directly. Therefore, extracting nicotine from tobacco has attracted widespread attention in recent years. So, what equipment and methods are used to extract nicotine from tobacco?
Solvent extraction method to extract nicotine from tobacco:
Many experts have done a lot of research on the methods of extracting nicotine from tobacco, and have also summarized some methods, such as: steam distillation, ion exchange and organic solvent extraction, as well as some new nicotine extraction methods. Methods, such as microwave-assisted extraction, supercritical fluid extraction, carbonization decarboxylation, microemulsion extraction, etc.
Equipment for extracting nicotine from tobacco:
After the process method is determined and the solvent extraction method is used, the next step is to select the equipment. Corresponding to this process, it is more appropriate to use extraction equipment. Commonly used types of extraction equipment include mixing clarifiers, extraction towers and centrifugal extractors. Among them, extraction tanks and towers are relatively traditional equipment, which achieve two-phase separation under the action of gravity. Compared with these two extraction equipment, centrifugal extraction The efficiency of the machine is higher because it achieves two-phase separation under the action of high-speed centrifugal force. In addition, the centrifugal extraction machine is very energy-saving. Under the same processing capacity, its power consumption is only 10% to 30% of the traditional annular gap model.