Method for pre-treating chitin raw material
A chitin and pretreatment technology is applied in the field of pretreatment of chitin raw materials, which can solve the problems of low effect and difficult chemical modification of chitin, and achieve the effects of reducing consumption, increasing the chemical reactivity of chitin and simple recovery.
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Embodiment 1
[0025] A kind of pretreatment method of chitin raw material is characterized in that adopting following steps:
[0026] 1) Put the chitin raw material into the gas-explosion expansion tank, inject the gas-explosion expansion medium, the gas-explosion expansion medium adopts water vapor, fill it with water vapor with a pressure of 0.5MPa and a temperature of 150°C, and maintain it for 5 minutes;
[0027] 2) Instantly release the pressure in the gas explosion expansion tank, and spray the chitin raw material into the normal pressure container to obtain the chitin concentrate.
Embodiment 2
[0029] A kind of pretreatment method of chitin raw material is characterized in that adopting following steps:
[0030] 1) Put the chitin raw material into the gas-explosion expansion tank, inject the gas-explosion expansion medium, the gas-explosion expansion medium adopts water vapor, fill in the water vapor with a pressure of 0.4MPa and a temperature of 140°C, and maintain it for 10 minutes;
[0031] 2) Instantly release the pressure in the gas explosion expansion tank, and spray the chitin raw material into the normal pressure container to obtain the chitin concentrate.
Embodiment 3
[0033] A kind of pretreatment method of chitin raw material is characterized in that adopting following steps:
[0034] 1) Put the chitin raw material into the gas-explosion expansion tank, inject the gas-explosion expansion medium, the gas-explosion expansion medium adopts water vapor, fill it with water vapor with a pressure of 0.3MPa and a temperature of 130°C, and maintain it for 15 minutes;
[0035] 2) Instantly release the pressure in the gas explosion expansion tank, and spray the chitin raw material into the normal pressure container to obtain the chitin concentrate.
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