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A kind of unsaturated fatty acid salt solution and preparation method thereof

A fatty acid salt and unsaturated technology, which is applied in the direction of carboxylate preparation, carboxylate preparation, chemical instruments and methods, etc., can solve the problems of oxidation or even decomposition, slow dissolution rate, and difficulty in preparation, so as to promote catalysis Effect, simple operation, stable performance

Active Publication Date: 2020-03-10
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the content of unsaturated fatty acid salt in the product solution reaches 10% under normal temperature, the viscosity of the system begins to increase, and gel phenomenon will appear after standing for several hours; It becomes a water-in-oil state, and it is more difficult to remove water; if the temperature continues to increase, the unsaturated fatty acid radicals are easily oxidized or even decomposed at high temperature, so it can only be carried out by low temperature and decompression. This process has a long dehydration cycle and consumes energy Many, resulting in expensive products with high active ingredient content
Solid unsaturated fatty acid salt or high-concentration solution, the process of preparing the required concentration solution is affected by temperature and water hardness. During the dissolution process, as the viscosity of the system gradually increases, the dissolution rate will slow down, and it is even difficult to prepare at low temperature. Low-viscosity clear and transparent solution with a concentration of more than 5%, the prepared solution product, the appearance of gel during storage also affects the normal use of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put 400Kg of deionized water and 110Kg of potassium hydroxide in a double-layer reactor, heat it to 90°C with circulating heat transfer oil, add 300Kg of oleic acid into the reactor for saponification reaction, continue the reaction for 1 hour, and cool to 60°C, Add 25Kg of monoethanolamine and 20Kg of triethanolamine into the reactor for liquefaction. When cooling to 40°C, add 15Kg of methanol and 15Kg of ethanol, 10Kg of diethylene glycol propyl ether and 10Kg of diethylene glycol butyl ether into the reactor for reaction Obtain a transparent brown-red high-concentration potassium oleate solution, in which the mass concentration of potassium oleate is higher than 35%, the solution is clear and transparent, and there will be no stratification and gelation after long-term storage, which is convenient for long-term storage and transportation. The product dissolves quickly and is easy to use.

Embodiment 2

[0020] Put 580Kg of deionized water and 82.5Kg of potassium hydroxide in a double-layer reactor, heat it up to 100°C with circulating heat transfer oil, add 225Kg of oleic acid into the reactor for saponification reaction, continue the reaction for 1 hour, and cool to 60°C , put 10Kg monoethanolamine into the reaction kettle for liquefaction, when cooled to 40°C, add 100Kg methanol and 10Kg diethylene glycol propyl ether into the reaction kettle to react to obtain a transparent brown-red high-concentration potassium oleate solution, in which oil The mass concentration of potassium acid potassium is higher than 30%, the solution is clear and transparent, and there will be no stratification and gelation after long-term storage, which is convenient for long-term storage and transportation. When used, the liquid product dissolves quickly and is easy to use.

Embodiment 3

[0022] Put 340Kg of deionized water and 137.5Kg of potassium hydroxide in a double-layer reactor, heat it to 100°C with circulating heat transfer oil, add 375Kg of oleic acid into the reactor for saponification reaction, continue the reaction for 1 hour, and cool to 60°C , put 50Kg diethanolamine into the reaction kettle for liquefaction, when cooled to 40°C, add 10Kg isopropanol and 100Kg ethylene glycol butyl ether into the reaction kettle to react to obtain a transparent brown-red high-concentration potassium oleate solution, wherein The mass concentration of potassium oleate is higher than 30%, the solution is clear and transparent, and there will be no stratification and gelation after long-term storage, which is convenient for long-term storage and transportation. The liquid product dissolves quickly and is convenient to use.

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Abstract

The invention belongs to the technical field of fatty acid salt solution and discloses an unsaturated fatty acid salt solution and a preparation method thereof. The technical scheme includes that the unsaturated fatty acid salt solution is prepared from, by weight, 30%-50% of unsaturated fatty acid salts, 1%-5% of amine complexing agents, 1%-10% of ether coupling agents, 1%-10% of alcohol dispersing agents and the balance deionized water. The unsaturated fatty acid salt solution prepared according to the method is high in concentration, low in viscosity and available for long-term storage, and convenience in transport, storage and quick dissolution for use of the unsaturated fatty acid salts is achieved.

Description

technical field [0001] The invention belongs to the technical field of fatty acid salt solution, in particular to a high-concentration, low-viscosity and stable unsaturated fatty acid salt solution and a preparation method thereof. Background technique [0002] Potassium salt of unsaturated fatty acid, especially potassium oleate, is an important fine chemical product. In polyurethane foam, it can also be used as a catalyst for polyisohydrourate reaction; in a variety of composite molding products such as metal processing It acts as surfactant, stabilizer, emulsifier, lubricant, etc. in solutions or emulsions such as fluid, ink slurry, latex, etc.; in oilfield additives, it is one of the main components of VES clean fracturing fluid. [0003] Fatty acid salts are usually produced in the water phase by saponification. Unsaturated fatty acids are slowly added to a hot aqueous solution of sodium hydroxide or potassium hydroxide. After fully saponified, the product is cooled and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C07C51/50C07C57/12
CPCC07C51/412C07C51/50C07C57/12
Inventor 冯九菊王爱军陈得军
Owner ZHEJIANG NORMAL UNIVERSITY