A kind of purification method of nicotine and nicotine

A purification method and technology of nicotine, which is applied in the field of purification of natural products, and can solve the problems of heavy chemical odor, yellowish color and unstable properties of nicotine
CN110724126BActive Publication Date: 2021-02-09上海零诺生物科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海零诺生物科技有限公司
Publication Date
2021-02-09

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Abstract

The invention relates to a nicotine purification method and nicotine. The nicotine purification method comprises the following steps: under the condition of introducing protective gas, carrying out atmospheric distillation on nicotine to be treated at 90-100 DEG C to remove low-boiling-point impurities; after atmospheric distillation, carrying out vacuum distillation on the treated nicotine in twosteps, wherein in the first step, vacuum distillation is carried out at 110-150 DEG C for 30 min to 1 h to obtain a small amount of nicotine which is discarded, and nicotine which is not distilled isobtained; in the second step, nicotine which is not distilled is distilled again at 120-150 DEG C, and nicotine is obtained; and carrying out reduced pressure distillation on the nicotine obtained inthe second step of vacuum distillation to obtain the required nicotine. The nicotine treated by the method is high in purity, is a transparent and colorless liquid, is purer in smell, and does not contain residual chemical odor in common nicotine products; and the related operation requires less labor, the treatment amount is large, the average daily nicotine treatment amount can reach 100 L, andthe method is suitable for large-scale production and use.
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Description

technical field

[0001] The invention relates to the technical field of purification of natural products, in particular to a method for purifying nicotine and nicotine. Background technique

[0002] Nicotine, commonly known as nicotine, is an important chemical raw material in the pharmaceutical, pesticide and chemical industries. According to research, nicotine has obvious curative effects on Alzheimer's disease and depression, and has great application potential in the field of treatment of related diseases, and its demand is large , the price of high-purity nicotine at home and abroad is more than 500,000 to 1,000,000 per ton. At present, nicotine is mainly extracted from tobacco and or discarded tobacco stems and tobacco leaves.

[0003] Nicotine is easily soluble in alcohol, ether, chloroform, alkanes and other organic solvents as well as in water. At present, the industrial production and preparation of nicotine mainly uses extraction equipment to extract in lye and ac...

Claims

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