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Linoleic acid and production technique thereof

A production process, the technology of linolenic acid, applied in the field of linolenic acid and its production process, can solve the problems of low linolenic acid content and inability to be used in the preparation of ink binders, and achieve high linolenic acid content, short reaction time, and equipment The effect of low operating costs

Active Publication Date: 2013-03-20
BEIJING BANKNOTE PRINTING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can obtain relatively high-purity linolenic acid products, but the content of linolenic acid in the linoleic acid obtained by this method is relatively low, generally not more than 65%, and cannot be used to prepare inks that meet the ink requirements. material

Method used

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  • Linoleic acid and production technique thereof
  • Linoleic acid and production technique thereof
  • Linoleic acid and production technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Ingredients: Add 500 kg of sesame oil and 500 kg of deionized water into the reaction kettle, stir and heat up;

[0032] Saponification: Add 320 kg of NaOH solution with a concentration of 25wt% into the reaction kettle, finish adding within 60 minutes, stir and heat, after adding, control the temperature of the material at about 98°C, and react for 4 hours;

[0033] Acidification: After the reactants reach the end of the reaction, add 360 kg of sulfuric acid with a concentration of 40wt% into the reactor, control the addition speed to complete the addition within 60 minutes, stir while adding, and control the reaction temperature of the materials at 40-95 ℃;

[0034] Water separation: After adding sulfuric acid, stir for 15 minutes, then stop stirring, let stand for 8 hours, and let off the waste acid;

[0035] Water washing: Add 600 kg of deionized water at 60°C to the reaction kettle, stir for 15 minutes and let it stand for 4 hours, then turn on the water and repea...

Embodiment 2

[0042] Ingredients: Add 500 kg of flax oil and 1000 kg of deionized water into the reaction kettle, stir and heat up;

[0043] Saponification: Add 360 kilograms of NaOH solution with a concentration of 28wt% into the reactor, finish adding within 45 minutes, stir and heat, control the temperature of the material at about 92°C, and react for 8 hours;

[0044]Acidification: After the reactants reach the end of the reaction, add 360 kg of sulfuric acid with a concentration of 50wt% into the reaction kettle, control the addition speed to complete the addition within 45 minutes, stir while adding, and control the reaction temperature of the materials at 40-95°C ;

[0045] Water separation: After adding sulfuric acid, stir for 15 minutes, then stop stirring, let stand for 10 hours, and let go of the waste acid;

[0046] Water washing: Add 630 kg of deionized water at 70°C to the reaction kettle, stir for 15 minutes and let it stand for 5 hours, then turn on the water and repeat the...

Embodiment 3

[0052] Ingredients: Add 500 kg of flax oil and 1500 kg of deionized water into the reaction kettle, stir and heat up;

[0053] Saponification: Add 400 kg of NaOH solution with a concentration of 30wt% into the reaction kettle, add it in 30 minutes, stir and heat, control the temperature of the material at about 85°C, and react for 10 hours;

[0054] Acidification: After the reactants reach the end of the reaction, add 360 kg of sulfuric acid with a concentration of 60wt% into the reactor, control the addition speed to complete the addition within 30 minutes, stir while adding, and control the reaction temperature of the materials at 40-95°C ;

[0055] Water separation: After adding sulfuric acid, stir for 15 minutes, then stop stirring, let stand for 14 hours, and let go of the waste acid;

[0056] Water washing: Add 570 kg of deionized water at 80°C to the reaction kettle, stir for 15 minutes and let it stand for 6 hours, then turn on the water and repeat the above operation...

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Abstract

The invention relates to a linoleic acid and a production technique thereof. On the basis of the total weight of the linoleic acid, the linoleic acid is prepared from the following components: 75-80% of linolenic acid, 10-15% of linoleic acid, 0-5% of oleic acid and 5-10% of saturated fatty acid. The invention also provides a production technique of the linoleic acid. The content of linolenic acid in the linoleic acid provided by the invention is greatly increased as compared with the existing linoleic acid product, and the total fatty acid content is up to higher than 75%. The ink vehicle prepared by the linoleic acid provided by the invention has higher reaction activity and viscoelasticity, and can satisfy the requirements for ink. The production technique of linoleic acid has the characteristics of wide raw material sources, simple preparation technique, no organic solvent residue and the like.

Description

technical field [0001] The invention relates to a kind of linoleic acid and its production process, in particular to a kind of linoleic acid used for ink binder and its production process. Background technique [0002] Linolenic acid is a mixture of unsaturated fatty acids and saturated fatty acids such as linolenic acid, linoleic acid and oleic acid. Among them, the chemical name of linolenic acid is Z, Z, Z-9,12,15-octadecane Dilute acid (C18:3), the chemical name of linoleic acid is Z, Z-9,12-octadecadienoic acid (C18:2), the chemical name of oleic acid is 9-octadecenoic acid (C18 :1). Linoleic acid mainly exists in a variety of vegetable oils in the form of triglycerides, such as linseed oil, perilla seed oil, walnut oil, etc. [0003] At present, the preparation of linoleic acid generally uses linseed oil and perilla seed oil as raw materials, and is prepared through steps such as saponification, acidification, water washing, urea complexation and distillation. The r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C1/00
Inventor 马云
Owner BEIJING BANKNOTE PRINTING
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