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A kind of production process of epoxy fatty acid methyl ester plasticizer and the plasticizer obtained

An epoxy fatty acid methyl ester and production process technology, which is applied in the field of plasticizer preparation, can solve the problems of lack of controllability of different raw materials and uncontrollable product quality, and achieve the effect of reducing raw material costs and ensuring product quality

Active Publication Date: 2020-03-10
浙江嘉澳环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because fatty methyl esters used as raw materials are currently mostly refined from waste oil, or prepared from other raw materials with complex components, resulting in uncontrollable product quality, the existing process lacks controllability for different raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Taking the daily processing capacity of 60 tons as an example, the waste oil methyl ester of Zhejiang Dongjiang Energy Technology Co., Ltd. was used as raw material for epoxidation. After the material is dehydrated in the post-treatment tank, it is kept at 110°C and 1 kPa for 2 hours, and then pumped into the stripping tower with a feed rate of 2 tons per hour. The feed rate depends on the processing capacity and product flash. Point requirement adjustment is mainly to ensure that the liquid level of the tray is below 35 cm, control the surface area to volume ratio of the liquid, and ensure the final product result, thereby controlling the effect of stripping. The pressure of the stripper is controlled at about 1 kPa, which is also to ensure the stripping effect, and the vacuum condition can improve the light removal capacity. The temperature is controlled by the outer wall coil at 110°C-115°C (the temperature of the inner tray of the lifting tower) to ensure the moistu...

Embodiment 2

[0026] Taking the daily processing capacity of 60 tons as an example, the fatty acid methyl ester of Jiangsu Jiemei Bioenergy Recovery Co., Ltd. was used as the raw material for epoxidation. The raw materials are dehydrated in the post-treatment kettle, kept at 110°C and 1 kPa for 2 hours, and then pumped into the stripping tower with a feed rate of 3 tons per hour. The feed rate depends on the processing capacity and product The flash point requires adjustment, mainly to ensure that the liquid level of the tray is below 35 cm, to control the surface area to volume ratio of the liquid, to ensure the final product result, and to control the stripping effect. The pressure of the stripper is controlled at about 1 kPa, which is also to ensure the stripping effect, and the vacuum condition can improve the light removal capacity. The temperature is controlled by the outer wall coil at 115°C-120°C (the temperature of the inner tray of the lifting tower) to ensure the moisture content...

Embodiment 3

[0028]Taking the daily processing capacity of 60 tons as an example, the refined fatty acid methyl ester of Tangshan Jinlihai Biodiesel Co., Ltd. was used as raw material for epoxidation. The final material is dehydrated in the post-treatment kettle, kept at 110°C and 1 kPa for 2 hours, and then pumped into the stripping tower with a feed rate of 2.5 tons per hour. The feed rate depends on the processing capacity and The flash point of the product needs to be adjusted, mainly to ensure that the liquid level of the tray is below 35 cm, to control the surface area to volume ratio of the liquid, to ensure the final product result, and to control the stripping effect. The pressure of the stripper is controlled at about 1 kPa, which is also to ensure the stripping effect, and the vacuum condition can improve the light removal capacity. The temperature is controlled by the outer wall coil at 115°C-120°C (the temperature of the tray inside the tower), which ensures the moisture conte...

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Abstract

The invention discloses a production technology of an epoxidized fatty acid methyl ester plasticizer. The technology comprises an epoxidation step, a post-treatment step and a filter pressing step, and further comprises a stripping step between the post-treatment step and the filter pressing step, feedback control of the stripping control is realized through detecting the flash point of the product, the flash point of the product is 195 DEG C or more; and the stripping step is performed in a stripping tower, the temperature of the stripping tower is 110-120 DEG C, and the stripping pressure is500-1500 Pa. The invention also provides the plasticizer prepared through the production technology. Compared with old technologies, the technology in the invention guarantees the quality of the product and reduces the raw material cost by raising the flash point to 195 DEG C or above from 188-190 DEG C when using the same batch of the raw material with poor quality.

Description

technical field [0001] The invention relates to the technical field of plasticizer preparation, in particular to a production process of epoxy fatty acid methyl ester plasticizer and the obtained plasticizer. Background technique [0002] Plasticizers are generally also called plasticizers. Plasticizer is a polymer material additive widely used in industry. Adding this substance in plastic processing can make it more flexible, easy to process, and can be legally used for industrial purposes. Plasticizers are classified into aliphatic dibasic acid esters, phthalates (including phthalates and terephthalates), benzoate esters, benzoate esters, poly Alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, polyesters, etc. [0003] Epoxy plasticizers are less toxic and have been allowed to be used in food and pharmaceutical packaging materials in many countries. They are the only epoxy plasticizers approved by the US Drug Administration for food packaging material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D303/42C07D301/03C07D301/32C08K5/1515
CPCC07D301/03C07D301/32C07D303/42C08K5/1515
Inventor 沈健顾晓平
Owner 浙江嘉澳环保科技股份有限公司