Rubber seed oil-based epoxy fatty acid methyl ester and preparation method and application thereof

A technology of oil-based epoxy fatty acid methyl ester and fatty acid methyl ester, which is applied in the field of preparation of bio-based plasticizers, can solve problems such as insufficient effective utilization, achieve high-value development and utilization, simple preparation process, and environmentally friendly friendly effect

Inactive Publication Date: 2012-06-27
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to insufficient attention to the application of rubber seed oil earlier, a considerable part of

Method used

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  • Rubber seed oil-based epoxy fatty acid methyl ester and preparation method and application thereof
  • Rubber seed oil-based epoxy fatty acid methyl ester and preparation method and application thereof
  • Rubber seed oil-based epoxy fatty acid methyl ester and preparation method and application thereof

Examples

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Example Embodiment

[0027] The preparation method of the technical scheme specifically adopted by the present invention includes the following steps:

[0028] A two-step method was used to prepare the fatty acid methyl esters of rubber seed oil. Take 100g of rubber seed oil after degumming, mix it with 20-40g methanol and 0.8-1.2g catalyst, carry out the esterification reaction at a constant temperature of 60-80℃, and stop the reaction after the acid value drops below 2mg KOH / g When a solid catalyst is used, the catalyst is separated, and the excess methanol and water generated by the esterification reaction are removed by distillation under reduced pressure at 90°C. If a liquid catalyst is used, it is removed together with methanol, etc.; the resulting oil phase product is then added 10- 30g methanol and 0.8-1.2g catalyst, carry out the transesterification reaction at a constant temperature of 55-65°C for 2h, cool appropriately, and then distill under reduced pressure to 90°C, stand still for str...

Example Embodiment

[0041] Example 1

[0042] A two-step method was used to prepare the fatty acid methyl esters of rubber seed oil. Take 100g of rubber seed oil after degumming, mix it with 20-40g methanol and 0.8-1.2g cation exchange resin catalyst, and carry out esterification reaction under constant temperature of 60-80℃, until the acid value drops to 2mg KOH / g After the following, stop the reaction, separate the catalyst, and distill at 90°C under reduced pressure to remove the excess methanol and the water generated by the esterification reaction; add 10-30g methanol and 0.8-1.2g catalyst to the resulting oil phase product, and add 10-30g methanol and 0.8-1.2g catalyst at 55-65 The transesterification reaction was carried out at a constant temperature of ℃ for 2h, and after proper cooling, it was distilled to 90 ℃ under reduced pressure, left standing for stratification, the lower layer of glycerol was recovered, and the crude fatty acid methyl ester of the upper layer was taken for use.

[...

Example Embodiment

[0046] Example 2

[0047] A two-step method was used to prepare the fatty acid methyl esters of rubber seed oil. Take 100g of the rubber seed oil after degumming, mix it with 20-40g methanol and 0.8-1.2g catalyst p-toluenesulfonic acid, and carry out the esterification reaction at a constant temperature of 60-80℃ until the acid value drops to 2mg KOH / g After the following, stop the reaction and distill under reduced pressure at 90°C to remove excess methanol, p-toluenesulfonic acid and moisture generated by the esterification reaction; add 10-30g methanol and 0.8-1.2g catalyst to the resulting oil phase product, and add 10-30g methanol and 0.8-1.2g catalyst at 55- The transesterification reaction was carried out at a constant temperature of 65°C for 2h, and after proper cooling, it was distilled to 90°C under reduced pressure, left standing for stratification, and the lower layer of glycerin was recovered, and the crude fatty acid methyl ester of the upper layer was taken for ...

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Abstract

The invention relates to rubber seed oil-based epoxy fatty acid methyl ester and a preparation method and application thereof. After being degummed, rubber seed oil and methanol are subjected to pre-esterification and ester exchange reaction so that rubber seed oil-based fatty acid methyl ester rough product is obtained, the rubber seed oil-based fatty acid methyl ester rough product is subjected to crystallization and separation at low temperature so that UFAMEs (unsaturated fatty acid methyl esters) rich in polyene is obtained, products from epoxidation can be allowed to stand and delaminate, and finally the rubber seed oil-based epoxy fatty acid methyl ester is obtained after the upper oil phase is neutralized, dehydrated and adsorbed. The epoxide value is equal to or larger than 5.0%, the flash point is equal to or larger than 200 DEG C, the resistivity is equal to or larger than 1.0X109 ohmm, the tincture is smaller than or equal to 180, the acid value ranges from 0.45-0.5mgg-1, and the heating loss is smaller than or equal to 0.5. The raw materials of the rubber seed oil-based epoxy fatty acid methyl ester are easy to obtain so that the cost thereof is low. The rubber seed oil-based epoxy fatty acid methyl ester is high in performance and stable in quality and suitable for industrial production. The preparation method of the rubber seed oil-based epoxy fatty acid methyl ester is simple in process, convenient in operation, short in production cycle, low in energy consumption and low in pollution during production.

Description

technical field [0001] The invention relates to a preparation method of a bio-based plasticizer, in particular to a rubber seed oil-based high-performance epoxy fatty acid methyl ester, a preparation method thereof and an application as a plasticizer. Background technique [0002] After decades of development, my country's plasticizer industry has formed a certain scale, and is currently the country with the largest production and consumption of plasticizers in Asia. Among them, phthalate plasticizers have the largest production and consumption due to their low price, accounting for about 90% of the total consumption of plasticizers, while non-phthalate plasticizers account for less than 10% of the total output. The product grade and application cannot meet the requirements of market development, and the non-toxic and environmentally friendly renewable plasticizer products using biomass as raw materials are even rarer, and the use of environmentally friendly plasticizers in ...

Claims

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Application Information

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IPC IPC(8): C11C3/10C08K5/1515
Inventor 蒋剑春陈洁聂小安陈水根常侠李科许彬
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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