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Clean technology for enriching unsaturated fatty acid methyl ester

A fatty acid methyl ester and unsaturated technology, which is applied in the field of enriching unsaturated fatty acid methyl ester, can solve the problems of urea wastewater that cannot be treated, high energy consumption, and low product purity, so as to reduce energy consumption and production cost, and achieve high recovery efficiency , The effect of high unpacking efficiency

Active Publication Date: 2016-07-20
石家庄搏澳增塑材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to overcome the technical problems of high energy consumption, low product purity and inability to treat a large amount of urea wastewater in the separation of saturated fatty acid methyl esters by the urea inclusion method in the prior art, the present invention provides a deep eutectic solvent solution with high urea recovery efficiency. package technology

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  • Clean technology for enriching unsaturated fatty acid methyl ester

Examples

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Effect test

Embodiment 1

[0017] The iodine value is 96gI 2 300 kilograms of mixed solutions of saturated and unsaturated fatty acid methyl esters per 100 g are sent into clathrate kettle 1, and then 950 liters of methanol solution with urea content of 200 kilograms are added in clathrate kettle 1 under stirring condition, and clathrate kettle temperature is At 40°C and a pressure of 0.1 MPa, after the saturated fatty acid methyl ester and urea in the mixed solution of saturated and unsaturated fatty acid methyl ester form an inclusion complex, filter through plate and frame filter press 2 to obtain 28 kg of urea filter cake, which can be recycled; The filtrate is sent to the freezer 3, and is frozen and crystallized at a temperature of 8° C. for 24 hours; afterward, it is filtered with a plate and frame filter press 4, and the filtrate is poured into the evaporation kettle 5, and the methanol in the filtrate is removed under reduced pressure to obtain the Regenerated methanol is used next time, and th...

Embodiment 2

[0019] The iodine value is 86gI 2 300 kilograms of saturated and unsaturated fatty acid methyl ester mixed solutions per 100g are sent into clathrate kettle 1, and then 1060 liters of methanol solution with urea content of 220 kilograms are added in clathrate kettle 1 under stirring conditions, and clathrate kettle temperature is 30°C, pressure 0.1MPa, after the saturated fatty acid methyl ester and urea in the mixed solution of saturated and unsaturated fatty acid methyl ester form an inclusion compound, filter through the plate and frame filter press 2 to obtain 32 kg of urea filter cake, which can be recycled; The filtrate is sent to the freezer 3, and is frozen and crystallized at a temperature of 7° C. for 18 hours; afterward, it is filtered with a plate and frame filter press 4, and the filtrate is poured into the evaporation kettle 5, and the methanol in the filtrate is removed under reduced pressure to obtain Regenerated methanol is used next time, and the filtrate tha...

Embodiment 3

[0021] The iodine value is 103gI 2300 kilograms of mixed solutions of saturated and unsaturated fatty acid methyl esters per 100 g are sent into clathrate kettle 1, and then 920 liters of methanol solution with urea content of 180 kilograms are added in clathrate kettle 1 under stirring conditions, and the clathrate kettle temperature is 30°C and a pressure of 0.1MPa, after the saturated fatty acid methyl ester and urea in the mixed solution of saturated and unsaturated fatty acid methyl ester form an inclusion compound, filter through the plate and frame filter press 2 to obtain 25 kg of urea filter cake, which can be recycled; The filtrate is sent to the freezer 3, and is frozen and crystallized at a temperature of 6° C. for 20 hours; afterward, it is filtered with a plate and frame filter press 4, and the filtrate is poured into the evaporation kettle 5, and the methanol in the filtrate is removed under reduced pressure to obtain the Regenerated methanol is used next time, ...

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Abstract

In order to solve the technical problems that in the conventional urea adduction method, the energy consumption for separating saturate fatty acid methyl ester is high, the product purity is low, and a large amount of urea wastewater cannot be processed, the invention provides a eutectic solvent method unpacking technology, which has high urea recovery efficiency. According to the technology, the unpacking is realized by forming a eutectic solvent, the urea recovery rate is high, and almost all urea in inclusion compounds can be separated through once mixing in an unpacking kettle. The cost of choline chloride taken as the unpacking agent is low, and choline chloride is biodegradable and environment-friendly. The technology has the characteristics that the unpacking efficiency is high and urea can be radically removed. At the same time, the formed eutectic solvent has a certain effect on removing water and few metal impurities in fatty acid methyl ester; the energy consumption and production cost are prominently reduced, and fatty acid methyl ester with a high iodine value can be obtained.

Description

technical field [0001] The invention relates to a method for enriching unsaturated fatty acid methyl esters from a mixed solution of saturated and unsaturated fatty acid methyl esters by using an inclusion agent combined with a deep eutectic solvent method. Background technique [0002] Plasticizers are widely used in the processing of plastic and rubber products. Phthalates, a traditional plasticizer, are potentially carcinogenic and extremely harmful to the environment. Non-toxic plasticizer epoxy fatty acid methyl ester came into being. In PVC products, the epoxy group can also capture HCL and act as a heat stabilizer. Epoxy value is an important index to measure the effect of plasticizing and stabilizing. Therefore, when purchasing epoxy plasticizer products, users always prefer products with high epoxy value. Epoxy fatty acid methyl esters are produced from fatty acid methyl ester mixtures. The higher the iodine value, that is, the higher the content of unsaturated...

Claims

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Application Information

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IPC IPC(8): C11B7/00B01D11/02C07C69/003C07C67/60
Inventor 冯树波赵亚男冯丹华
Owner 石家庄搏澳增塑材料科技有限公司
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