2轉(zhuǎn)化為金紅石型TiO2，反應(yīng)后得到了金紅石型TiO2。金紅石型TiO2中的鈦的價態(tài)為四價，晶格氧和化學(xué)吸附氧分別占57.26%和42.74%。該方法可以同時解決2種廢棄物的處置問題。;Tungsten and vanadium was separated from Ti in waste selective catalytic reduction (SCR) catalyst by roasting with waste NaCl salts (WNCS). Results show that the leaching efficiency of tungsten and vanadium reaches 84.63% and 66.42%, respectively, under the optimal conditions (roasting temperature 900 °C; roasting time 3 h; mass ratio of WNCS to waste SCR catalysts 0.5; reaction temperature 80 °C; reaction time 60 min), and the loss rate of titanium is 1.3%. The waste NaCl salts and roasting temperature play a positive role in converting anatase TiO2 to rutile TiO2. And the rutile TiO2 is obtained. The valence of rutile TiO2 is quadrivalent, and the lattice oxygen and chemisorbed oxygen occupy 57.26% and 42.74%, respectively."/>
2;waste SCR catalyst;waste NaCl salts;recovery;tungsten;vanadium;rutile TiO2"/>