Production method for extracting essential oil from plant artemisia argyi

Abstract

The invention aims to provide artemisia argyi essential oil production process which can shorten production process procedures, lowers production cost, and is safe, environmental-friendly, relatively lower in the requirement on workers' quality and easy to process slag. The production method can realize continuous and mass production of artemisia argyi essential oil, and comprises the following steps: 1. pretreatment of the artemisia argyi; 2, pressing of artemisia crude oil; 3, standing and layering of artemisia argyi crude oil hydrate; 4, rectification of artemisia argyi essential oil, namely a hydration liquid containing the artemisisa argyi at the upper part of the stood and layered artemisia argyi crude oil hydrate is led to the rectification procedure for rectification, as a result, the artemisia argyi is obtained. The slag is treated, the slag contains organic substances, and the pressed slag is shattered so as to obtain a raw material containing more than 45 percent of organic substances.

Description

Technical field [0001] The invention relates to a method for producing essential oils of plants, in particular to a method for producing essential oils of artemisia wormwood through physical squeezing processing and high-temperature rectification separation by using plant wormwood as raw materials. [0002] Background technique [0003] At present, the main methods for domestic production of mugwort essential oil are steam distillation, organic solvent extraction, and carbon dioxide supercritical extraction. [0004] The steam distillation method has a long production process line, the distillation process is controlled on the plant mugwort, the distillation time is long, the product composition is complex, the yield is low, the generated waste residue is not easy to break, and the effective ingredients cannot be completely extracted. [0005] In the organic solvent extraction method, the organic solvents used are generally methanol and acetone. After these chemical organic solvents e...

AI Technical Summary

Problems solved by technology

[0004] Steam distillation method, the production process line is long, the distillation process is controlled on the plant mugwort, the distillation time is long, the product composition is complex, the yield is low, the waste residue produced is not easy to break, and the active ingredients in it cannot be completely extracted

[0005] Organic solvent extraction method uses organic solvents such as methanol and acetone. After extracting mugwort essential oil with these chemical organic solvents, pollution-free treatment must be carried out, which has a great impact on the environment. The price of organic solvents used is high, so the production cost is relatively high

[0006] The carbon dioxide supercritical extraction method requires the purchase of supercritical fine equipment, which requires a large one-time investment. Supercritical extraction requires good operating conditions, high safety production requirements, high requirements for the quality of workers, and high production costs.