Paper
Green Chemistry
amounts of solvents used. Finally, our analysis clearly shows
the importance of using a number of different metrics to
evaluate the relative greenness and sustainability of processes
as some routes perform well when evaluated with one metric
but poorly with other criteria.
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Conflicts of interest
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There are no conflicts to declare.
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Acknowledgements
SGA thanks Prof Kevin Harding, School of Chemical
Engineering, University of the Witwatersrand, for his contin-
ued support and encouragement during the course of her 21 C. M. Alder, J. D. Hayler, R. K. Henderson, A. M. Redman,
studies and gratefully acknowledges the National Research
Foundation (NRF) for financial support.
L. Shukla, L. E. Shuster and H. F. Sneddon, Green Chem.,
2016, 18, 3879–3890.
3346 | Green Chem., 2021, 23, 3334–3347
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