Preparation of titanium dioxide

Claim 1

IN THE METHOD OF PREPARING TITANIUM DIOXIDE BY THE REACTION OF TITANIUM TETRACHLORIDE WITH OXYGEN IN A REACTION ZONE, THE IMPROVEMENT WHICH COMPRISES ESTABLISHING SEPARATE HEATED STREAMS OF OXYGEN AND TITANIUM TETRACHLORIDE FLOWING IN THE SAME DIRECTION AND CONCURRENTLY TO EACH OTHER, CONTACTING THE RESULTING FLOWING STREAMS IN THE REACTION ZONE WHILE MAINTAINING THE REYNOLD''S FLOW NUMBERS OF THE OXYGEN AND TITANIUM TETRACHLORIDE STREAMS AT THE POINT OF CONTACT THEREOF IN THE LAMINAR FLOW AREA AND NOT IN EXCESS OF 500 AND 1800 RESPECTIVELY, THE TEMPERATURE AT THE POINT OF CONTACT BEING SUFFICIENTLY HIGH TO CAUSE REACTION BETWEEN THE STREAMS TO THEREBY PRODUCE TITANIUM DIOXIDE AND CHLORINE.