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Biobased Chemicals

Australian firm Circa readies a safer solvent

by Michael McCoy
February 17, 2019 | A version of this story appeared in Volume 97, Issue 7
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The structure of dihydrolevoglucosenone.

The Australian firm Circa Group has opened a demonstration plant for dihydrolevoglucosenone, a cellulose-derived solvent it calls Cyrene. It built the plant in a joint venture with the Norwegian paper company Norske Skog. Circa sees Cyrene as an alternative to traditional dipolar aprotic solvents such as N-methyl-2-pyrrolidone, which has been labeled a substance of very high concern in Europe.

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