Consumer goods
CIRTIO2
NEW PROCESS FOR TITANIUM DIOXIDE RECOVERY FROM PAPER MILL WASTE SLUDGE
THE BASQUE COUNTRY GENERATES AROUND 2,000 TONNES OF PAPER SLUDGE with high titanium dioxide (TiO2) content per year, out of the 110,000 tonnes generated globally. Although this sludge is hardly recovered, TiO2 is a relatively high-value mineral that is used as a white pigment. A process to recover TiO2 from waste, which is yet unknown, would save 80% of the energy consumed and CO2 emissions per kg of TiO2 compared to conventional processes for obtaining TiO2 through mining and intensive chemical processing.
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