desulphurize
Concise Oxford English Dictionary © 2008 Oxford University Press:
desulphurize /diːˈsʌlfərʌɪz/ (or desulphurise) (US desulfurize)
▶verb remove sulphur from.
– derivatives
desulphurization noun.
desulphurization noun.
'desulphurize' also found in these Oxford entries:

