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Method for circularly and continuously extracting eucommia gum, eucommia seed oil, eucommia extractum and eucommia resin from eucommia seeds

A cyclic continuous extraction and Eucommia seed oil technology, applied in the refining of natural resin, edible oil/fat, fat oil/fat production, etc., can solve the problems of high cost, high energy consumption and material consumption, single product, etc., to improve the efficiency of resource utilization , There is no three waste discharge, the effect of reducing energy consumption and material consumption

Inactive Publication Date: 2012-12-05
INST OF CHEM CHINESE ACAD OF SCI
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of low resource utilization efficiency, single product, high energy and material consumption, and high cost of the existing rubber extracting technology, and provide a method for efficiently and continuously extracting Eucommia ulmoides from Eucommia seeds (seeds knotted on Eucommia trees) The method of glue, eucommia seed oil, eucommia extract and eucommia resin

Method used

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  • Method for circularly and continuously extracting eucommia gum, eucommia seed oil, eucommia extractum and eucommia resin from eucommia seeds

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Embodiment 1

[0025] See figure 1 .

[0026] 1) After cleaning the eucommia seeds, dehydrate and dry them at a temperature of about 60-80°C (moisture content<10%), weigh 100g of the dried eucommia seeds, grind them to 50-80 mesh, and then use n-hexane (petroleum ether ) and Eucommia seeds in a weight ratio of 10:1, put the dried Eucommia seeds into the extraction reactor, use liquid nitrogen or dry ice to control the temperature at -10 to 0°C, add 1000ml of n-hexane (petroleum ether) , to extract, the extract is tan semi-finished Eucommia seed oil, the extract is subjected to decolorization, degumming, debromination and other oil conventional treatment processes to obtain 5.3g light yellow finished Eucommia seed oil; the extract is recovered through vacuum distillation ;

[0027] In order to improve the extraction rate, the extraction is to adopt 3 circulation extraction processes, and the time of each circulation extraction is 30 minutes;

[0028] 2) Dry the oil residue obtained after t...

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Abstract

The invention relates to a method for efficiently, circularly and continuously extracting eucommia gum, eucommia seed oil, eucommia extractum and eucommia resin from eucommia seeds. According to the separation principle of different polarities and different solubility parameters of four substances, the eucommia seed oil, eucommia extractum, eucommia resin and eucommia gum are sequentially extracted by adopting corresponding solvent, the extracts of the four substances are rectified to recover solvents, and the extracts are dried to respectively obtain products, namely the eucommia seed oil, eucommia extractum, eucommia resin and eucommia gum. The method has the characteristics that the shortcoming of resource waste because only one or two components can be extracted from the eucommia seeds in the traditional extraction process is overcome, the maximal resource utilization is realized, the whole process is circular and repeated, the extraction solvent can be circularly utilized, the energy consumption and substance consumption are greatly reduced and the discharge of three wastes does not exist basically.

Description

technical field [0001] The invention relates to a method for efficiently and continuously extracting eucommia gum, eucommia seed oil, eucommia extract and eucommia resin from eucommia ulmoides seeds (seeds borne on eucommia trees). Background technique [0002] Eucommia gum is an isomer of natural rubber with a chemical formula of trans-polyisoprene (Trans-1,4-polyisoprene referred to as TPI), which widely exists in all levels of the Eucommia tree. It is an important industrial polymer material, which can be used as a second rubber source to replace natural rubber, and has important strategic significance. China's current planting area of ​​natural rubber trees is more than 10 million mu, mainly distributed in Hainan, Yunnan, Guangdong, and Guangxi, with an annual output of about 500,000 tons of natural rubber. In 2007, my country imported 1.648 million tons of natural rubber, while the output of natural rubber was less than 500,000 tons. The domestic space for planting nat...

Claims

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Application Information

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IPC IPC(8): C08J3/00C08L7/00C11B1/10C09F1/02A61K36/46A61P3/06A23D9/02C08L21/00C08L93/00
Inventor 张继川薛兆弘严瑞芳
Owner INST OF CHEM CHINESE ACAD OF SCI
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