The present invention provides: a catalyst for purification of exhaust gases
which catalyst is excellent as a denitrification catalyst which has still more
excellent ability to remove nitrogen oxides and of which the ability to oxidize
sulfur dioxide into sulfur trioxide is extremely suppressed and further as a catalyst
which is favorable for efficiently removing organohalogen compounds, such as dioxins,
from exhaust gases; a production process therefor; and a process for purification
of exhaust gases. The catalyst for purification of exhaust gases comprises titanium
oxide, molybdenum oxide, and vanadium oxide as catalytic components, wherein the
titanium oxide and the molybdenum oxide are included in the catalyst in the form
of: a binary closely mixed oxide which is beforehand prepared and includes titanium
and molybdenum; and/or a trinary closely mixed oxide which is beforehand prepared
and includes titanium, silicon, and molybdenum.
