Principle of cellulose ether preparation process

更新時(shí)間：

2024-04-19

Preparation of alkaline cellulose (alkalization): natural cellulose forms alkaline cellulose with NaOH under certain conditions

(1) Preparation of alkaline cellulose (alkalization): natural cellulose forms alkaline cellulose with NaOH under certain conditions

(2) Etherification: Multiphase heterogeneous reaction between alkaline cellulose and etherification agent

(3) Neutralization: neutralize unreacted bases with appropriate acid

(4) Product separation: including reaction medium recovery, separation, and crude product refinement and purification.

(5) Post treatment: including surface crosslinking treatment to regulate solubility, drying, crushing, and sieving.



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