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Method for producing epoxy plasticizer using waste grease

A technology of epoxy plasticizer and waste oil, which is applied in the production of epoxy plasticizer and plasticizer by using waste oil, can solve the problem of affecting the plasticizing effect of the product, reducing the epoxy value of the product, complex production process, etc. It can reduce the harm to the environment and people's health, improve flexibility, and have a wide range of effects.

Inactive Publication Date: 2010-02-17
江苏向阳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, they have the following disadvantages: 1. Vegetable oil is used as raw material, and the production cost is relatively high; 2. During the epoxidation process, acid catalysts and stabilizers are added to reduce the epoxy value of the product, which affects the plasticizing effect of the product, and the production process is complicated. Difficulty postprocessing

Method used

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  • Method for producing epoxy plasticizer using waste grease
  • Method for producing epoxy plasticizer using waste grease

Examples

Experimental program
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Embodiment 1

[0027] Example 1: Warm up waste oil to 45°C and filter through a filter press to remove solid particles to obtain hot oil, add 3-6% sodium hydroxide solution to the hot oil, stir well, then extract and separate to remove fatty acid sodium and colloid, and take samples When the acid value (KOH mg / g) is analyzed and determined to be less than 1.0, carry out dehydration and deodorization by vacuum distillation, and heat to 80°C at -0.05MPa until no water is evaporated, and remove peculiar smell at the same time; then use activated clay for adsorption decolorization ( With activated clay as 1 part, 30 parts of fats and oils are fed), the activated clay is recycled and reused, and the obtained glyceride is pumped into the transesterification kettle, and the weight ratio of glyceride, methanol and sodium hydroxide is: 1:( 0.20~0.24): (0.00036~0.00044) Feed, heat and stir, and react under reflux for 2 hours; After the reaction, the crude ester is separated by distillation, the by-prod...

Embodiment 2

[0028] Embodiment 2: basic catalyst used in the transesterification process is potassium hydroxide, and other technical parameters and operating steps are the same as the embodiment, and obtain the finished product of epoxy fatty acid methyl ester.

Embodiment 3

[0029] Embodiment 3: the organic acid is replaced with acetic acid formic acid, and other technical parameters and operation steps are the same as in embodiment 1 to obtain the finished product of epoxy plasticizer.

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PUM

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Abstract

This invention relates to one kind of method to use abandoned grease to produce epoxy plasticizer, its characteristic lies in: Use the abandoned grease as raw materials, by pretreatment, the obtainedglycerin ester to ester exchange respond with the methyl alcohol under alkali catalysis, then get fatty acidmethyl ester, then again with the peroxide organic acid, which is the reaction products ofhydrogen peroxide and organic acid, to directly epoxy respond, get the raw epoxy fatty acid methyl ester, then wash off the acid by water, and obtain the epoxy fatty acid methyl ester by distillationand dehydration product. The raw material cost of this invention is low, originates broadly, conforms to the green environmental protection requirement, and the craft is simple, does not pollute environment, so it is the good substitute of petroleum product.

Description

technical field [0001] The invention relates to a production method of a plasticizer, in particular to a method for producing an epoxy plasticizer by using waste oil. It belongs to the technical field of organic chemical synthesis. Background technique [0002] Plasticizers account for about 58% of the chemical additives market, and their specific products include phthalates (DOP), aliphatic dibasic esters, phosphate epoxy compounds, trimellitates, petroleum esters, Chlorine plasticizers, polymeric plasticizers, etc. At present, the annual consumption of plasticizers is very large. With the development of the plastics and rubber industries, the market demand is on the rise. Most of the above-mentioned plasticizers contain benzene rings, which are toxic and difficult to degrade. During use or production, they will cause harm to the environment and health, and the scope of use is limited. So far, there are few non-toxic and environmentally friendly plasticizers, accounting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B13/00C11C3/10C08K5/10
CPCY02W30/74
Inventor 李祥庆
Owner 江苏向阳科技有限公司
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