Method for removing micro polynary arene in natural vitamine E

A technology for natural vitamins and aromatic hydrocarbons, applied in the direction of organic chemistry, etc., can solve problems such as difficulty in removal, and achieve the effects of simple process, no pollution to the environment, and small loss

Active Publication Date: 2006-10-11
浙江伊宝馨生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because polyaromatic hydrocarbons are very small in vitamin E, it is very difficult to remove them. At present, there is no removal method that meets industrial production and has economic application value in the same industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 100 grams of natural vitamin E, dissolve it in 300 grams of ethanol, add silica gel, under the protection of nitrogen, control the system temperature at 63 ° C, and use the external circulation method to fully mix for 2 hours. After stopping, filter, the filtrate is concentrated by vacuum distillation, and then purified by molecular distillation to obtain the product. It has been detected that polyaromatic hydrocarbons are 18ppb, of which the light part is 17ppb, the heavy part is 1ppb, and benzopyrene is less than 0.5ppb.

Embodiment 2

[0022] Take 100 grams of natural vitamin E, dissolve in 300 grams of butyl butyrate, add activated carbon, under the protection of nitrogen, control the system temperature at 61 ° C, and fully mix for 2 hours by means of external circulation. After stopping, filter, the filtrate is concentrated by vacuum distillation, and then purified by molecular distillation to obtain the product. It has been detected that polyaromatic hydrocarbons are 12ppb, of which the light part is 11.2ppb, the heavy part is 0.8ppb, and benzopyrene is less than 0.5ppb.

Embodiment 3

[0024] Take 150 grams of natural vitamin E, dissolve it in 500 grams of ethanol, add activated carbon, under the protection of nitrogen, control the temperature of the system at 62 ° C, and use the external circulation method to fully mix for 2 hours. After stopping, filter, the filtrate is concentrated by vacuum distillation, and then purified by molecular distillation to obtain the product. It has been detected that the polyaromatic hydrocarbons are 8ppb, of which the light part is 5ppb, the heavy part is 3ppb, and benzopyrene is less than 0.5ppb.

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PUM

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Abstract

The invention relates to a process for removing trace quantity of multicomponent aromatic hydrocarbons from natural vitamin E by using natural vitamin E as the solute, inert organic solvent as the solvent, charging 5-6% of removing agent at the presence of nitrogen protection, controlling the temperature to be 60 deg. C, mixing through external circulation, filtering, condensing, then refining through molecular distillation.

Description

technical field [0001] The invention relates to the field of fine chemical industry, in particular to a method for removing trace multivariate aromatic hydrocarbons in natural vitamin E. Background technique [0002] Polyaromatic hydrocarbons are produced by factors such as soil, chemical fertilizers, and pesticides during soybean planting, or oxidized by strong alkali, light, high temperature, high heat, and excessive metal ions. Its existence will cause harm to the human body, and heavy polyaromatic hydrocarbons, especially benzopyrene, are even more carcinogenic. Vitamin E is an indispensable nutrient for the human body and needs to be supplemented every day. Therefore, for the consideration of human health and safety, polyaromatic hydrocarbons must be removed. At present, European and American countries have very strict requirements on polyaromatic hydrocarbons. The total polyaromatic hydrocarbon content is less than 25ppb (one part per billio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/72
Inventor 黄茂清陆定贤
Owner 浙江伊宝馨生物科技股份有限公司
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