Method for separation preparation of high purity natural phytol

A phytol, pure natural technology, applied in chemical instruments and methods, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve problems such as thermal decomposition

Inactive Publication Date: 2012-12-05
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Molecular distillation is to separate materials by using different molecular free paths under high vacuum. The mixture is volatilized and separated at a temperature far below the boiling point of normal pressure. The separation degree is significantly improved compared with conventional distillation, and heat sensitivity can be avoided at the same time. Thermal decomposition of materials, polymerization and other issues, there is no molecular distillation separation and preparation of high-purity natural phytol reported in the country, the present invention uses secondary molecular distillation method from silkworm excrement, mulberry leaves, bamboo leaves, pine needles, ginkgo leaves, etc. Separation and preparation of high-purity natural phytol from processing by-products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Example 1: 500ml of phytol with a content of 88% was added to the KDL5 molecular distillation small test equipment of UIC GmbH in Germany, and the vacuum degree was 0.5Pa, the condensation surface temperature was 20°C, and the preheating temperature was 40°C. Under the condition of min, the evaporation temperature of primary molecular distillation is 68°C to remove light component impurities to obtain about 94% phytol 425ml. Then, under the same conditions of vacuum degree, condensation surface temperature, and wiper speed, the preheating temperature is 50°C, and the evaporation temperature is 75°C, carry out secondary molecular distillation to remove heavy component impurities, and obtain phytol with a content of more than 98%. 402ml.

example 2

[0024] Example 2: Add phytol with a content of 88% to the MD-S150 molecular distillation pilot plant. At a vacuum of 0.5 Pa, a condensation surface temperature of 20°C, and a preheating temperature of 40°C, the speed of scraping film is 280r / min. Under the condition of distillation and evaporation temperature of 68°C, light component impurities are removed to obtain about 94% phytol. Then perform secondary molecular distillation, under the same vacuum degree, condensation surface temperature, and wiper speed conditions, the preheating temperature is 50°C, and the evaporation temperature is 75°C to remove heavy component impurities and obtain phytol with a content of more than 98%. .

example 3

[0025] Example 3: Add phytol with a content of 88% to MD-S150 molecular distillation pilot equipment, at a vacuum of 0.5Pa, a condensation surface temperature of 20°C, a preheating temperature of 50°C and a scraping speed of 280r / min, the primary molecule Under the condition of distillation and evaporation temperature of .75°C, heavy component impurities are removed to obtain about 94.5% phytol. Then carry out secondary molecular distillation, under the same vacuum degree, condensation surface temperature, and wiper speed conditions, the preheating temperature is 50°C, and the evaporation temperature is 68°C to remove light component impurities and obtain chlorophyll with a content of more than 98%. alcohol.

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Abstract

The invention discloses a method for separation preparation of high purity natural phytol from silkworm faeces, mulberry leaves, bamboo leaves, pine needles, ginkgo leaves and the like, and processing byproducts thereof by using a two-step molecule distillation method and other process integration technologies. The method is characterized in that an extraction treatment is performed on silkworm faeces, mulberry leaves, bamboo leaves, pine needles, ginkgo leaves and the like, and processing byproducts thereof to obtain a phytol crude extract, the phytol crude extract is subjected to vacuum rectification to obtain a phytol rectificate with a content of 80-90%, primary molecule distillation separation is performed to remove partial impurities to obtain phytol with a content of 90-96%, and secondary molecule distillation separation is continuously performed to remove residual impurities to obtain a natural phytol product with a content of more than 98%.

Description

Technical field: [0001] The invention relates to the separation and preparation of high-purity natural phytol from silkworm excrement, mulberry leaves, bamboo leaves, pine needles, ginkgo leaves, etc. and their processing by-products by using secondary molecular distillation and other process integration technologies. Up to 98% or more. Background technique: [0002] Silkworm excrement, mulberry leaves, bamboo leaves, pine needles, ginkgo leaves, etc. and their processing by-products contain a series of natural bioactive components such as porphyrin compounds and phytol, which can be fully utilized. Natural phytol, also known as phytol or phytol, is a chlorophyll decomposition product and is an unsaturated high-carbon alcohol with a molecular formula of C 20 h 40 O. Phytol is a colorless or light yellow transparent oily liquid with a boiling point of 203-204°C (1.33kPa). It is miscible with organic solvents but insoluble in water. It is an important raw material in organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C33/03C07C29/80
CPCY02P20/10
Inventor 平丽娟毛建卫严少诚方晟彭勇
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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