Sodium sarcosinate is produced from sodium chloroacetate and methylamine. Sodium sarcosinate and oleyl chloride are prepared under base catalysis.
Preparation of sodium sarcosinate Sodium monochlorate is added to a reaction kettle, water is added to form a 12% aqueous solution, 40% sodium hydroxide aqueous solution is added under stirring, and stirred at 25~30 ℃ for 2 hours. Then add 30% methylamine aqueous solution. React at 0.18MPa,75~85 ℃ for 8h. Cold to 25 ℃, use compressed air to catch up with excessive methylamine. Preparation of sodium sarcosinate aqueous solution.
Condensation The aqueous solution of sodium sarcosinate is added to the reaction kettle, and the catalyst amount of sodium hydroxide is added and stirred evenly. The acid chloride was reacted at 60~80 ℃ for 6~8h. Products.