Compared with other non-derivatized cellulose solvents, inorganic molten salt hydrates are cheap and easy to prepare. In addition, they are environmentally friendly because no toxic and volatile organic compounds are required to prepare this solvent system. In the process of regenerating cellulose from an inorganic molten salt hydrate solution, only water is added and no organic solvent is required. In addition, the inorganic salt, the main component of the solvent system, can be recovered by evaporating water after cellulose regeneration, and can be recycled. Therefore, the suitability of this solvent system in cellulose processing has recently received more attention.
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