Method for preparing epoxy fatty acid methyl ester by kitchen waste grease

A technology of epoxy fatty acid methyl ester and kitchen waste, which is applied in the direction of organic chemistry, can solve the problems of affecting the plasticizing effect of products, reducing the epoxy value of products, and complicated production processes, so as to reduce the harm to the environment and people's health , Improve flexibility, the effect of a wide range of sources

Active Publication Date: 2015-07-08
CHENGDU HENGRUN HIGH NEW SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they have following shortcoming: 1. take vegetable oil as raw material, and production cost is higher; 2. in epoxidation process, add acid catalyst and stabilizer, the epoxy value of product reduces, affects the plasticizing effect of product, and production process is complicated, Difficulty postprocessing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 kitchen waste grease prepares epoxy fatty acid methyl ester

[0044] Collect kitchen waste (animal waste from the vegetable market, including chicken, duck, fish viscera, skin, hair);

[0045] Take the kitchen waste oil and remove impurities, and then undergo molecular distillation to obtain the treated oil. The acid value of the treated oil is 1.3;

[0046] The obtained treated oil was mixed with sodium hydroxide and methanol according to the mass ratio of 100:0.25:15, then stirred, and left to stand for 35 minutes after the first reaction at 64°C for 20 minutes to obtain fatty acid methyl esters;

[0047] Take the obtained fatty acid methyl ester, stir it, raise the temperature to 45°C, mix it with hydrogen peroxide at a mass ratio of 100:35, and conduct a second reaction at 55°C for 2.5 hours to obtain the product. Through mass spectrometry detection, the product is epoxy fatty acid methyl ester with a yield of 99.3% and an ester content of 99.5%.

Embodiment 2

[0048] Example 2 Preparation of Epoxy Fatty Acid Methyl Ester from Kitchen Waste Grease

[0049] Collect kitchen waste (garbage from various slaughterhouses, including discarded internal organs, skins and fur);

[0050] Take the kitchen waste oil and remove impurities, and then undergo molecular distillation to obtain the treated oil. The acid value of the treated oil is 1.5;

[0051]The obtained treated oil was mixed with sodium hydroxide and methanol according to the mass ratio of 100:0.75:10, then stirred, and left to stand for 25 minutes after the first reaction at 60°C for 30 minutes to obtain fatty acid methyl esters;

[0052] Take the obtained fatty acid methyl ester, stir, heat up to 55°C, mix with hydrogen peroxide at a mass ratio of 100:40, and conduct a second reaction at 50°C for 3 hours to obtain the product. Through mass spectrometry detection, the product is epoxy fatty acid methyl ester with a yield of 99.5% and an ester content of 99.6%.

Embodiment 3

[0053] Example 3 Preparation of Epoxy Fatty Acid Methyl Ester from Kitchen Waste Grease

[0054] Collect kitchen waste (leftovers from various food processing factories and spoiled and spoiled meat products);

[0055] Take the kitchen waste oil and remove impurities, and then undergo molecular distillation to obtain the treated oil. The acid value of the treated oil is 1.4;

[0056] The obtained treated oil was mixed with sodium hydroxide and methanol according to a mass ratio of 100:0.5:12, stirred, and left to stand for 30 minutes after the first reaction at 62°C for 25 minutes to obtain fatty acid methyl esters;

[0057] Take the obtained fatty acid methyl ester, stir it, raise the temperature to 50°C, mix it with hydrogen peroxide at a mass ratio of 100:38, and conduct the second reaction at 52°C for 2.9 hours to obtain the product. Through mass spectrometry detection, the product is epoxy fatty acid methyl ester with a yield of 99.1% and an ester content of 99.3%.

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Abstract

The invention relates to the field of biological processing, in particular to a method for preparing epoxy fatty acid methyl ester by kitchen waste grease. According to the method, kitchen waste grease is taken as the raw material, has wide sources and low cost and is renewable, so that not only are industrial production requirements met, but also harm to the environment and human health is reduced, the environment protection requirement is met, and the kitchen waste grease is a good substitute of a petroleum product. Any acid catalyst or stabilizer is not needed to add in an epoxidation process, so that epoxy ring opening probability promoted by the acid catalyst is avoided, the epoxy value is increased, the production is simple, and the cost is low; and a product prepared with the method is biodegradable and environment-friendly, and can be widely applied to products of plastics, rubber and the like. After a plasticizer is added, the flexibility, gloss, cold resistance, thermal and optical stability of the product can be improved, using amount of the stabilizer can be reduced, the using effect is obviously better than epoxidized soybean oil, and a plastification effect similar to DOP (dioctyl phthalate) and DBP (dibutyl phthalate) is achieved.

Description

technical field [0001] The invention relates to the field of biological processing, in particular to a method for preparing epoxy fatty acid methyl ester from kitchen waste oil. Background technique [0002] In the urban process, garbage, as a product of metabolism, used to be a burden on urban development, and many cities in the world are surrounded by garbage. Nowadays, garbage is considered to be the most potential and inexhaustible "urban mineral deposit" as "misplaced resources". This is the in-depth understanding of garbage, and it is also an inevitable requirement for urban development. [0003] Domestic waste refers to various wastes discharged by residents in urban waste, and refers to solid waste generated in daily life or activities that provide services for daily life and solid waste that is regarded as domestic waste according to laws and administrative regulations. Divided into four categories: recyclable waste, kitchen waste, hazardous waste and other waste. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D303/42C07D301/12C08K5/1515
CPCC07D301/12C07D303/42C08K5/1515
Inventor 赵旭李芮岚
Owner CHENGDU HENGRUN HIGH NEW SCI & TECH
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