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Method for producing epoxy plasticizer dirty oil and vegetable and animal waste oil

A technology of discarded animals and plants and epoxy plasticizers, applied in the direction of fatty acid esterification, etc., can solve the problems of high price of epoxy plasticizers, poor resin compatibility, high raw material requirements, etc., and achieve low cost of use and post-processing Convenience and high catalyst activity

Inactive Publication Date: 2007-09-05
江苏悦达卡特新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most epoxy plasticizers use natural vegetable oil as the main raw material. Not only the raw material requirements are high, but also soybean oil mainly contains oleic acid glyceride and linoleic acid ester. The epoxy value is not high, and there is a small amount of residual unsaturated structure. Resin compatibility is poor, and the price of epoxy plasticizer is high, so in plastic processing, the function of its stabilizer is mainly used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Heating the recovered waste oil and waste animal and vegetable oil to 70-90°C, settling and separating the sundries, adding 97% waste oil and waste animal and vegetable oil mixture and 3% porous carrier solid acid catalyst to the reaction In the kettle, the solid acid catalyst uses CaO or SiO 2 , the reaction temperature is controlled to be greater than 95°C, gaseous methanol is introduced under normal pressure, and stirred for 1 to 4 hours to carry out esterification reaction, and gaseous methanol enters continuously from the bottom or lower part of the reactor to carry out esterification reaction with oil, and the conversion rate is 97 % or more, after the reaction finishes, separate out the solid acid catalyst. Put 70-75% of the liquid after the esterification reaction, 15-25% of methanol and 3-5% of the solid base catalyst into the reactor according to the weight percentage. The solid base catalyst adopts CaO or MgO, and the reaction temperature is controlled at 50 ...

Embodiment 2

[0013] Heating the recovered waste oil and waste animal and vegetable oil to 70-90°C, settling and separating the sundries, adding 99.8% waste oil and waste animal and vegetable oil mixture and 0.2% porous carrier solid acid catalyst to the reaction In the kettle, the solid acid catalyst uses TiO 2 or TiO 2 -SiO 2 ,, the reaction temperature is controlled to be greater than 100-110°C, gas-phase methanol is introduced under normal pressure, stirred for 2-3 hours to carry out esterification reaction, and gas-phase methanol enters continuously from the bottom or lower part of the reactor to carry out esterification reaction with oil, and its transformation The yield was 97.2%. After the reaction was finished, the solid acid catalyst was separated. Put 75-80% of the liquid 15-20% methanol and 3-5% of the solid base catalyst into the reactor after the esterification reaction by weight percentage. The solid base catalyst is ZnO or SrO, and the reaction temperature is controlled at...

Embodiment 3

[0015] Heating the recovered waste oil and waste animal and vegetable oil to 70-90°C, settling and separating the sundries, adding 99% waste oil and waste animal and vegetable oil mixture and 1% porous carrier solid acid catalyst to the reaction In the still, the solid acid catalyst is made of diatomite or kaolin, the reaction temperature is controlled to be greater than 120-130°C, gas-phase methanol is introduced under normal pressure, and the esterification reaction is carried out after stirring for 1-2.5 hours, and the gas-phase methanol is discharged from the bottom of the reaction kettle Or the lower part is continuously fed into the reactor to carry out esterification reaction with oil, and the conversion rate is 98%. After the reaction, the solid acid catalyst is separated. Put 70-75% liquid 20-25% methanol and 1-5% solid alkali catalyst into the reaction kettle after the esterification reaction according to the weight percentage. The solid alkali catalyst adopts CaO-MgO...

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Abstract

A method for producing epoxy plasticizer from refused animal and vegetable oil is carried out by adding refused oil 97-99.8wt% and porous carrier solid acid 0.2-3wt% into reactor, inducing into gas-phase methanol at 95-130degree, agitating for 1-4hrs, esterification reacting, separating out solid acid, adding liquid 70-80wt%, methanol 15-25wt% and solid alkali catalyst 1-5wt% into reactor, agitating at 50-65degree and normal pressure for 0.5-2hrs, separating out to obtain aliphatic acid methoxy-carbonyl, adding hydrogen peroxide 25-5wt%, methane acid 2.5-10wt% and sodium tripolyphosphate 0-1wt% into aliphatic acid methoxy-carbonyl 55-70wt%, agitating for 8-10hrs at 60+-5degree, reacting, separating out acid water, neutralizing, washing and dewatering to obtain the final product. It's simple, cheap and has less consumption.

Description

technical field [0001] The invention relates to a preparation method of an epoxy grease plasticizer, in particular to a method for preparing an epoxy plasticizer from waste oil and waste animal and vegetable oil. Background technique [0002] The role of the plasticizer is to reduce the melt viscosity and melting temperature of the polymer, increase the plasticity and fluidity of the polymer, and make the plastic product flexible. Phthalate esters such as DBP and DOP are currently the most widely used plasticizers. These plasticizers have good compatibility with resins, but they cannot be used in food-contact packaging materials due to their toxicity. used in . Epoxy plasticizer can not only absorb the hydrogen chloride released by polyvinyl chloride resin when it decomposes, but also can be compatible with polyvinyl chloride resin, that is, it is used as a plasticizer and a stabilizer. At present, epoxy plasticizers are mainly epoxidized soybean oil, and the production me...

Claims

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Application Information

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IPC IPC(8): C08L91/00C11C3/04C11C3/10
Inventor 张伟明
Owner 江苏悦达卡特新能源有限公司
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