Efficient rectification device and method for high-purity nicotine

Abstract

The invention discloses an efficient rectification device and method for high-purity nicotine, and particularly relates to the technical field of nicotine extraction. The efficient rectification device is provided with a rectification equipment body, a falling film evaporation equipment body, a connecting pump, a steam generation assembly, a condensation equipment body, a first steam pipe, a second steam pipe, a third steam pipe and a backflow pipe; heat in the steam with slightly reduced temperature heats and evaporates the raw material in a connecting hole through a falling film heating barrel, the raw material is concentrated, low-boiling-point impurities in the raw material are cleaned, the concentrated raw material enters the rectification equipment main body through the connecting pump, and the concentrated raw material is in contact with the high-temperature steam for nicotine extraction; according to the method, low-boiling-point impurities are removed while the raw material is concentrated, high-boiling-point impurities are removed while rectification is carried out, it is guaranteed that the purity in the nicotine extraction process is 99.9% or above, meanwhile, steam heat is adopted for preheating the raw materials, the heating time of the raw materials in the rectification process is shortened, and the efficiency of the method is more ideal.

Description

technical field [0001] The invention relates to the technical field of nicotine extraction, and more specifically, the invention relates to a high-purity nicotine high-efficiency rectification device and method. Background technique [0002] The extraction process of nicotine is partially carried out by rectification. In the simple rectification process, the low-boiling impurities in the raw materials may evaporate simultaneously with the nicotine, resulting in more low-boiling impurities in the final extracted nicotine, which makes the extraction purity Affected, the raw materials extracted at the same time are mostly in a normal temperature state when they are added to the rectification tower. The contact evaporation process of the high-temperature steam to the raw materials needs to ensure a certain heating time to evaporate the nicotine. Therefore, the evaporation and extraction speed of nicotine is affected. At the same time, after evaporation Some of the nicotine conta...

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Problems solved by technology

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device and method for efficient rectification of high-purity nicotine. The technical problem to be solved by the present invention is: the extraction process of nicotine is carried out by means of rectification, simply During the rectification process, the low-boiling impurities in the raw materials may evaporate with the nicotine at the same time, resulting in more low-boiling impurities in the final extracted nicotine, which affects the extraction purity. It is at normal temperature, and the contact evaporation process of high-temperature steam on raw materials needs to ensure a certain heating time to evaporate nicotine, so the evaporation and extraction speed of nicotine is affected, and at the same time, part of the nicotine contained in the evaporated waste has not been proposed, and it will be discarded directly. Cause more waste, resulting in the problem that the efficiency and purity of the nicotine extraction process are not ideal

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