TY  - JOUR 
T1  - Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride
JO  - Brazilian Journal of Chemical Engineering
A1  - Georgieva, A. T.
A1  - Anastasov, A. I.
A1  - Nikolov, V. A.
SN  - 0104-6632
UL  - 10.1590/S0104-66322008000200013
VL  - 25 
Y1  - 2008
PB  - Brasil 
ER  -