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Method for removing fatty acid from ionic liquid

A technology of ionic liquid and free fatty acid, which is applied in the direction of fat production, fat oil/fat refining, etc., and can solve the problems of low deacidification efficiency and large amount of ionic liquid used

Pending Publication Date: 2021-06-25
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The selected [Mmim][DMP] has low deacidification efficiency, resulting in a large amount of ionic liquid used

Method used

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  • Method for removing fatty acid from ionic liquid
  • Method for removing fatty acid from ionic liquid
  • Method for removing fatty acid from ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0070] All ionic liquids in the examples were purchased from Shanghai Chengjie Chemical Co., Ltd.

[0071] Parallel reactors were purchased from Radleys, UK

[0072] Degummed rice bran oil and crude soybean oil are provided by Yihai (Taizhou) Grain and Oil Industry Co., Ltd.

[0073] For the determination method of acid value in oil, refer to "GB5009.229-2016 Determination of acid value in food";

[0074] For the determination method of polycyclic aromatic hydrocarbons in oil, refer to "Zheng Tiantian, Zhang Lishi, Wang Jun, et al. EU15+1PAHs pollution in edible vegetable oil and the influence of refining process on its content [J]. China Oils, 2016(12): 76-80 ”;

[0075] For the determination method of total sterols in fats and oils, refer to "GB / T 25223-2010 Determination of sterol composition and total sterols in animal and vegetable oils and fats by gas chromatography";

[0076] For the determination method of oryzanol in oils, please refer to "Li Runfeng, Chang Xuedong...

Embodiment 1

[0081] Take 3 parts of about 5g of degummed rice bran oil, add 5g of ionic liquid 1-butyl-3-methylimidazolium benzoate ([Bmim][BA]), 1-hexyl-3-methylimidazolium benzoate respectively salt ([Hmim][BA]) and 1-octyl-3-methylimidazolium benzoate ([Omim][BA]), respectively adopt 3000rpm high-speed shear mode to shear 3min, in parallel reactor Magnetically stirred at 80°C for 30 minutes, then centrifuged at 5000rpm for 3 minutes and cooled to room temperature, then separated and measured the acid value, polycyclic aromatic hydrocarbons, total sterols and oryzanol content of the upper oil phase.

[0082]

Embodiment 2

[0084]Take 4 parts of about 5g crude soybean oil, add 15g of ionic liquid 1-butyl-3-methylimidazolium benzoate ([Bmim][BA]), N-butylpyridine benzoate ([ Bpy][BA]), 1-methyl-3-butylbenzimidazole benzoate ([Bmbim][BA]), N-butyl-N-methylpyrrolidine benzoate ([PP 1,4 ][BA]), tetrabutylphosphonium benzoate ([P 4,4,4,4 ][BA]) and tetrabutylammonium benzoate ([N 4,4,4,4 ][BA]), were sheared by 10,000rpm high-speed shearing method for 3min, magnetically stirred at 180°C for 30min in a parallel reactor, centrifuged at 8,000rpm for 3min and cooled to room temperature, then separated and measured the acid value of the upper oil phase , polycyclic aromatic hydrocarbons, total sterols and oryzanol content.

[0085]

[0086]

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Abstract

The invention provides a method for reducing or removing free fatty acids and / or polycyclic aromatic hydrocarbons in grease, which comprises the step of contacting the grease with an ionic liquid or a solution thereof, wherein in the ionic liquid, the cation is selected from an imidazolium ion, a pyridinium ion, a quaternary phosphonium cation, a quaternary ammonium cation, a benzimidazolium ion, a pyrrolidinium ion, and a piperidinium ion, and the anion is a benzoate. The invention also provides application of the ionic liquid in removing or reducing the content of free fatty acid and / or polycyclic aromatic hydrocarbon in grease.

Description

technical field [0001] The present application relates to a method for removing fatty acid using an ionic liquid and the use of the ionic liquid for removing fatty acid. Background technique [0002] At present, the commonly used deacidification methods in the oil processing industry mainly include chemical alkali refining deacidification and physical deacidification. Chemical alkali refining deacidification has the advantage of high product quality, but chemical alkali refining deacidification will cause a large loss of nutrients. Physical deacidification often cannot guarantee the production of high-quality oils. The pre-treatment requirements for raw oil are relatively strict, requiring high temperature and high vacuum. At the same time, there are side reactions such as polymerization and isomerization, as well as the occurrence of trans fatty acids, chloropropane, etc. Harmful substances such as alcohol will be produced, and some functional ingredients will also be lost...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/16
CPCC11B3/006C11B3/16
Inventor 赵格格张海徐学兵姜元荣
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT