No abstract

A laboratory batch simulation of the recovery and reuse of [DBNH][OAc] in the IONCELL-F process, yielding future directions for optimising the recycling process.

No abstract

The stability of tetra-n-butylphosphonium hydroxide ([P 4444 (aq) was observed for fractionation of wheat straw, avoiding significant decomposition of the expensive phosphonium component. Herein, the possibilities for producing cellulose-rich fractions with reduced lignin contents and hemicellulose-rich extracts are discussed. A proposal is given for a full process cycle using [P 4444 ][OH] (aq) , where the phosphonium salt is used in fractionation and recovered by anion metathesis as a chloride salt. Although not demonstrated in this article, the chloride salt may be converted back to the hydroxide by means of, e.g., ion exchange.