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Preparation method of microbial oil-based epoxide

A microbial oil and oxide technology, applied in the direction of organic chemistry, can solve the problems of limited application, high production cost, low epoxy value, etc., and achieve low production cost, high epoxy value, and low residual iodine value. Effect

Active Publication Date: 2015-02-18
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Researchers from all walks of life pay more attention to the extraction of oil-producing microorganisms and microbial oils. The application of microbial oils is limited to biodiesel. There are few reports on the application of chemical products, especially plasticizers. This is mainly due to the low epoxy value and high production cost of the prepared microbial oil-based epoxide, which greatly limits its wide application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of preparation of microbial grease base epoxide product, get 10g microbial grease (iodine value 80); Formic acid 0.5g; Catalyst concentrated sulfuric acid 0.5g; Add in the reactor, water-bath heating, be warming up to 40 ℃, then stir and drop slowly Add 6g of sodium peroxide, and react for 4 hours after the sodium peroxide is completely added; after the reaction, wash the crude product with hot distilled water at 50-60°C, and then use a dilute alkali solution with a concentration of 0.1-0.3mol / l for alkali washing , and finally wash with distilled water to make the solution neutral; the washed product is distilled and dehydrated under reduced pressure to obtain microbial oil-based epoxide.

Embodiment 2

[0028] Referring to Example 1, the differences are: 1.3 g of acetic acid, 0.2 g of concentrated sulfuric acid as a catalyst; 65° C. of reaction temperature; 15 g of peracetic acid; and 8 hours of reaction time.

Embodiment 3

[0030] Referring to Example 1, the differences are: 2 g of formic acid, the catalyst is a mixture of 0.1 g of concentrated sulfuric acid and 0.1 g of hydrochloric acid; 7 g of hydrogen peroxide; the reaction temperature is 80° C.; the reaction time is 7 hours.

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Abstract

The invention discloses a preparation method of microbial oil-based epoxide. The preparation method comprises the following steps: adding organic acid and an acidic catalyst into microbial oil, stirring, keeping the reaction temperature at 40-80 DEG C, slowly and dropwise adding peroxide, after the peroxide is added, reacting for 4-8 hours at a constant temperature, washing a crude product by using hot water with the temperature of 50-60 DEG C, performing alkali washing by using a dilute alkali solution with the concentration of 0.1-0.3mol / L, washing by using water until the solution is neutral, and dehydrating the washed product by distilling under reduced pressure to obtain a target product. The microbial oil-based epoxide can replace epoxy soybean oil, can be used as a plasticizer for plastic food and medicine packaging materials, can also be used as a biological and chemical raw material for preparing polyols, lubricants and binders and the like, and has a relatively high industrial value.

Description

Technical field: [0001] The invention relates to the field of biochemical technology, in particular to a method for preparing microbial oil-based epoxides. Background technique: [0002] In recent years, my country has become the country with the largest production and consumption of plasticizers in Asia. With the enhancement of people's awareness of environmental protection, plastic products such as medicine, food packaging, daily necessities, and toys have put forward higher hygiene requirements for plasticizers. . For a long time, plasticizers are mainly phthalate products, and phthalate plasticizers are the most widely used type of plasticizers. However, due to the potential harm of such plasticizers to human health, With the increasing awareness of environmental protection and safety, countries have successively introduced laws to restrict the use of such products; and with the intensification of the oil crisis, the price of phthalates has risen sharply. Therefore, non...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D301/12C07D301/14C07D303/42
CPCC07D301/12C07D301/14C07D303/42
Inventor 陈新德杨丹张海荣熊莲黄超陈雪芳李小妹
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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