Monoester process of synthesizing trichlorosucrose
A technology of sucralose and monolipid, applied in the field of artificial synthesis of edible products with sweet taste, can solve problems such as increasing the production cost of other products, and achieve the effects of being convenient for wide-scale popularization and use, low production cost, and saving foreign exchange.
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[0018] 1. Esterification
[0019] 1. Add a certain amount of dimethylformamide (about 30 l) to the kettle at room temperature, stir and add 5 kg of sucrose, and stir to make it into a suspension.
[0020] 2. Add 3 to 4 liters of trimethyl orthoacetate dropwise for about 15 minutes (protected with gas) and react for 3 to 4 hours.
[0021] 3. Add a certain amount of water, react for about 1 hour, measure PH5~6, and cool down to below zero. After reacting for 1 to 1.5 hours, measure the pH value and adjust the pH to 8-9. Distill under reduced pressure to remove dimethylformamide and side reactants to make the product thick.
[0022] 2. Chlorination
[0023] 1. Use a certain period of time to increase the temperature in the kettle from room temperature to 69℃, and keep it for a certain period of time, and then take about half an hour to raise the temperature to 100℃, and keep it for a certain period of time to react, and then use about 2 hours to increase the temperature Raise it to 1...
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