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Preparation device and production process of sodium lauroyl glycinate

A technology for sodium lauroyl glycinate and a preparation device, which is applied in the preparation of carboxylic acid amides, the preparation of organic compounds, the separation/purification of carboxylic acid amides, etc., can solve the problem of increasing the production cost and time of sodium lauroyl glycinate, reducing sodium lauroyl glycinate Purity of finished products, affecting the quality of sodium lauroyl glycinate products, etc., to ensure the smooth operation of production, reduce the occurrence of side reactions, and improve the quality of finished products

Active Publication Date: 2021-09-28
江苏金桥油脂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, manufacturers generally cannot prepare sodium lauroyl glycinate products of different specifications through a complete set of production equipment, and need to process it multiple times through multiple sets of production equipment, which not only increases the production cost and time of sodium lauroyl glycinate , and the semi-finished products are also prone to pollution, oxidation and purity decline in the process of processing, storage and transshipment, which affects the quality of the finished product of sodium lauroyl glycinate
In addition, limited by the existing production equipment and technology, the side reactions during the preparation of sodium lauroylglycinate are serious, and the impurities in lauroylglycine are too much, which reduces the purity of sodium lauroylglycinate and restricts the downstream application scenarios.

Method used

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  • Preparation device and production process of sodium lauroyl glycinate
  • Preparation device and production process of sodium lauroyl glycinate
  • Preparation device and production process of sodium lauroyl glycinate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 2 Shown, embodiment 1, a kind of preparation process method of sodium lauroyl glycinate, method comprises the following steps:

[0039] S1. First put sodium glycinate and deionized water into the condensation reactor, then turn on the radial agitator in the condensation reactor to stir and dissolve. Fill with cooling liquid to control the reaction temperature at about 10°C;

[0040] S2. After stirring evenly, turn on the axial stirrer of the condensation reaction kettle to stir, add lauroyl chloride dropwise from the lauroyl chloride high position tank to the condensation reaction kettle, the molar ratio of lauroyl chloride to sodium glycinate is 1:1.05, and simultaneously from The sodium hydroxide solvent tank continuously pumps 30% sodium hydroxide into the feeding port at the bottom of the condensation reaction kettle to control the pH value of the system at 9.5-10.5; when the addition of lauroyl chloride is completed, continue to keep warm for 2.5 h...

Embodiment 2

[0046] Example 2, the preparation process and steps of this example are basically the same as Example 1, the difference is that S1, S2,

[0047] S1. First put sodium glycinate and deionized water into the condensation reactor, then turn on the radial agitator in the condensation reactor to stir and dissolve. Fill with freezing liquid to control the reaction temperature at about 5°C;

[0048] S2. After stirring evenly, turn on the axial stirrer of the condensation reaction kettle to stir, add lauroyl chloride dropwise from the lauroyl chloride high position tank to the condensation reaction kettle, the molar ratio of lauroyl chloride to sodium glycinate is 1:1.05, and simultaneously from The sodium hydroxide solvent tank continuously pumps 30% sodium hydroxide into the feeding port at the bottom of the condensation reaction kettle to control the pH value of the system at 9.5 to 10.5; when the lauroyl chloride is added dropwise, continue to keep warm for 3 hours to obtain a mixe...

Embodiment 3

[0049] Example 3, the preparation process and steps of this example are basically the same as Example 1, the difference is that S1, S2,

[0050] S1. First put sodium glycinate and deionized water into the condensation reactor, then turn on the radial agitator in the condensation reactor to stir and dissolve. Fill with freezing liquid to control the reaction temperature at about 15°C;

[0051] S2. After stirring evenly, turn on the axial stirrer of the condensation reaction kettle to stir, add lauroyl chloride dropwise from the lauroyl chloride high position tank to the condensation reaction kettle, the molar ratio of lauroyl chloride to sodium glycinate is 1:1.02, and at the same time from The sodium hydroxide solvent tank continuously pumps 30% sodium hydroxide into the feeding port at the bottom of the condensation reaction kettle to control the pH value of the system at 9.5-10.5; when the lauroyl chloride is added dropwise, continue to keep warm for 2.0 hours to obtain a mi...

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Abstract

The invention relates to the technical field of processing of amino acid surfactants, and particularly discloses a preparation device and a production process of sodium lauroyl glycinate. The device comprises a lauroyl chloride elevated tank, a condensation reaction kettle, an acidification reaction kettle, a centrifugal machine, a neutralization reaction kettle and a spray dryer. According to the sodium lauroyl glycinate production line, condensation, acidification, neutralization and spray drying processes of raw materials can be sequentially completed in one-time processing mainly through cooperation of the condensation reaction kettle, the acidification reaction kettle, the neutralization reaction kettle and the spray dryer, sodium lauroyl glycinate products of different models are produced, and the market differentiation requirements are met.

Description

technical field [0001] The invention relates to the technical field of processing amino acid surfactants, in particular to a preparation device and a production process of sodium lauroyl glycinate. Background technique [0002] Sodium lauroyl glycinate is one of the subcategories of amino acid surfactants. It has the characteristics of mildness, low toxicity, good biodegradability and good compatibility. It is widely used in shower gels, skin care products, shaving creams, and facial cleansers. It can be used in daily chemical formulations such as milk, detergent and toothpaste, and can also be used in industries such as food additives, metal processing and biomedicine. It has a wide range of applications and a large demand. [0003] Commercially available sodium lauroyl glycinate products mainly include three specifications, including 30% solid content high-salt liquid product, 30% solid content low-salt liquid product and powdery solid product. At present, manufacturers g...

Claims

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Application Information

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IPC IPC(8): C07C233/47C07C231/02C07C231/24
CPCC07C231/02C07C231/24
Inventor 刘兴稳李飞贺林陈莹葛昌源
Owner 江苏金桥油脂科技有限公司
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