Method for removing plasticizer in grease

A technology of plasticizer and oil, which is applied in the direction of oil/fat refining and fat generation, can solve problems that no one has been involved in, and achieve the effects of ensuring quality, extending shelf life, and avoiding secondary pollution

Active Publication Date: 2021-06-25
吉林省百利生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, only soybean oil, tea seed oil, rapeseed oil, corn oil, etc. are involved in the research on the removal of plasticizers in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Take 5g of evening primrose oil and put it into a 10ml test tube, take a total of 5 groups, add dibutyl phthalate (DBP) in sequence according to the gradient concentration, so that the concentration of each group reaches 1mg / kg, 5mg / kg, 10mg / kg respectively , 15mg / kg, 20mg / kg, mix well.

[0043] Each group of oils was pretreated by high-voltage pulsed electric field. The electric field strength is 15kV / cm, the number of pulses is 4, the frequency is 60Hz, the processing time is 400μs, and the pulse width is 100μs.

[0044] The pretreated oil was placed in 60 In the CO source irradiation field, the irradiation dose is 5kGy, and the treatment time is 4min. Add H-2 type activated carbon adsorbent with 1% oil weight, continue to stir to make it adsorb for 30min, the adsorption temperature is 100°C, and then centrifuge at 4500r / min for 30min to separate the adsorbent in the oil, take it out for detection and analysis, after irradiation The removal rates of plasticizers in...

Embodiment 2

[0046] Take 5g of evening primrose oil and put it into a 10ml test tube, take 5 groups in total, add di(2-ethyl)hexyl phthalate (DEHP) in sequence according to the gradient concentration, so that the concentration of each group reaches 1mg / kg, 5mg / kg, 10mg / kg, 15mg / kg, 20mg / kg, mix well.

[0047] Each group of oils was pretreated by high-voltage pulsed electric field. The electric field strength is 30kV / cm, the number of pulses is 6, the frequency is 60Hz, the processing time is 600μs, and the pulse width is 150μs.

[0048] The pretreated oil was placed in 60 In the CO source irradiation field, the irradiation dose range is 10kGy, and the treatment time is 6min.

[0049] Add H-2 type activated carbon adsorbent with 2% oil weight, continue to stir to make it adsorb for 40min, the adsorption temperature is 130°C, and then centrifuge at 4500r / min for 30min to separate the adsorbent in the oil, take it out for detection and analysis, after irradiation The removal rates of plas...

Embodiment 3

[0051] Take 20g of evening primrose oil, add dibutyl phthalate (DBP) and di(2-ethyl)hexyl phthalate (DEHP), so that the concentration of the two plasticizers reaches 5mg / kg, uniform mix.

[0052] Each group of oils was pretreated by high-voltage pulsed electric field. The electric field strength is 30kV / cm, the number of pulses is 6, the frequency is 60Hz, the processing time is 600μs, and the pulse width is 300μs.

[0053] The oil pretreated by high-voltage pulsed electric field was placed in 60 In the CO source irradiation field, the irradiation dose range is 5kGy, and the treatment time is 6min.

[0054] Put the irradiated oil in a three-necked flask, heat and stir to 100°C, add H-2 type activated carbon adsorbent with 3% oil weight, continue to stir until the set adsorption time is 50min, and then centrifuge at 4500r / min for 30min Separating the adsorbent in the oil, if the adsorbent is still suspended in the oil, then filter it, and finally get the clean oil;

[0055]...

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PUM

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Abstract

The invention provides a method for removing a plasticizer in grease, which comprises the following steps: S1) pretreating the grease through a high-voltage pulsed electric field to obtain pretreated grease; S2) performing irradiation treatment on the pretreated grease by using gamma rays to obtain grease subjected to irradiation treatment; and S3) carrying out adsorption treatment on the grease subjected to irradiation treatment by utilizing an adsorbent to obtain treated grease. Compared with the prior art, the method has the advantages that the plasticizers in the grease are subjected to structure change through high-voltage pulse electric field pretreatment and irradiation treatment, then the plasticizers subjected to structure change are removed through the adsorbent, the removal rate of the plasticizers is greatly increased, the quality of the grease is guaranteed, harmful substances in the grease can be removed through irradiation, the quality guarantee period of the grease is prolonged, furthermore, no chemical reagent is needed, so that secondary pollution can be avoided, the safety of the grease is improved, and the grease is harmless to the environment.

Description

technical field [0001] The invention belongs to the technical field of food processing, in particular to a method for removing plasticizers from oil. Background technique [0002] Plasticizers, also known as plasticizers, mostly refer to phthalate plasticizers, polar or partially polar, not easily soluble in water, easily soluble in organic solvents such as alcohols, esters, ethers, etc. Liquid or solid with high boiling point and low volatility. As a polymer material additive widely used in industry, it is used in food packaging materials, toys, medical blood bags and hoses, vinyl flooring and other materials, and can also be used as a raw material for the production of pesticide carriers, coatings, printing and dyeing, cosmetics and spices, etc. . However, since plasticizers have toxic effects on multiple systems of the body, they are prohibited from being used as food additives. If you eat foods containing plasticizers for a long time, it will cause abnormalities in the...

Claims

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Application Information

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IPC IPC(8): C11B3/00
CPCC11B3/001
Inventor 王春双潘风光关芯蕊范明莲王文昌
Owner 吉林省百利生物科技有限公司
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