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[Chemical Knowledge]：Manufacturing method and process flow of myristic acid

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Myristic acid is a common saturated fatty acid, which is widely used in the field of chemical production, mainly used in the production of surfactants, plastic plasticizers, spices and so on. The following is a paper on the manufacturing method of myristic acid for your reference.

myristic acid manufacturing method

Abstract: This article describes the myristic acid manufacturing methods, including esterification, saponification and biological fermentation and other processes. Through the comparison of different manufacturing methods, the advantages and disadvantages of various methods are analyzed, which provides a reference for selecting the appropriate process route in actual production.

keywords: myristic acid, manufacturing method, esterification, saponification, biological fermentation

Introduction

myristic acid (Myristic acid) is a saturated fatty acid containing 14 carbon atoms, with high melting point and stability, widely used in the field of chemical production. In order to better meet the market demand and improve the production efficiency and quality of myristic acid, it is of great significance to study its manufacturing method. This article will introduce several common manufacturing methods of myristic acid and make a comparative analysis.

1. esterification method

esterification method is a common myristic acid manufacturing method, mainly with myristyl alcohol as raw material, through the esterification reaction of myristic acid. The specific steps are as follows:

1. Mix myristyl alcohol with an acidic catalyst such as sulfuric acid, and heat to a certain temperature for esterification.
2. After completion of the reaction, the catalyst was washed with water, neutralized, and distilled to obtain crude myristic acid.
3. The crude product is further refined, such as crystallization, decolorization and other treatments to obtain myristic acid with high purity.

esterification method has the advantages of simple process and easy access to raw materials, but a large amount of wastewater will be produced in the production process, and the equipment corrosion is serious.

2. saponification method

saponification method is based on myristate glyceride as raw material, through saponification reaction to produce myristic acid. The specific steps are as follows:

1. Mix glyceryl myristate with an alkaline catalyst such as sodium hydroxide, heat to a certain temperature, and perform a saponification reaction.
2. After completion of the reaction, the catalyst is neutralized with an acidic substance such as hydrochloric acid, and operations such as separation and washing are carried out to obtain a myristate salt.
3. The myristic acid salt is subjected to an acidolysis reaction to obtain crude myristic acid.
4. the crude product was refined to obtain myristic acid with high purity.

saponification method has high yield and purity, but a large amount of waste lye will be produced in the production process, which needs to be properly treated.

3. Biological Fermentation

Biological fermentation is a method of producing myristic acid by microbial fermentation. The specific steps are as follows:

1. mixing carbon sources such as glucose, nitrogen sources, inorganic salts and other nutrients with microbial strains for fermentation.
2. Under suitable conditions, microorganisms convert nutrients to myristic acid.
3. Myristic acid is separated from the fermentation broth by centrifugation, extraction, etc.
4. The myristic acid was further refined to obtain a higher purity product.

biological fermentation method has the advantages of environmental protection and energy saving, but the production process is long, and the growth and metabolism of microorganisms need to be controlled, which is technically difficult.

conclusion

myristic acid has a variety of manufacturing methods, including esterification, saponification and biological fermentation. The advantages and disadvantages of different methods are different, and the appropriate process route should be selected according to the actual production needs. In the future, with the continuous progress of science and technology and the improvement of environmental awareness, environmental protection and energy-saving manufacturing methods such as biological fermentation will be more widely used.

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