Green and recyclable cellulose solvent and preparation method thereof, and method for realizing cellulose regeneration

The invention discloses a green and recyclable cellulose solvent and a preparation method thereof, and a method for realizing cellulose regeneration. The cellulose solvent is a mixed hydrated fused salt of calcium chloride hexahydrate and anhydrous lithium chloride, the content of the calcium chloride hexahydrate is 65.0%-90.0%, and the content of the anhydrous lithium chloride is 10.0%-35.0%. The cellulose solvent is prepared from calcium chloride hexahydrate and anhydrous lithium chloride, and the method is wide in raw material source, low in cost, free of toxic and harmful substances and environmentally friendly. The solvent system can be used for dissolving natural cellulose with the molecular weight as high as 8.0 * 10 < 5 > to obtain a cellulose solution with high solubility. A cellulose solution obtained by using the solvent is solidified and regenerated by a 5.0-10.0% ethanol water solution to prepare a cellulose membrane and gel. 本发明公开了一种绿色可循环的纤维素溶剂及其制备方法，以及一种实现纤维素再生的方法。所述纤维素溶剂为六水合氯化钙和无水氯化锂的混合水合熔盐，其中