公开(公告)号：US3914396A

公开(公告)日：1975-10-21

申请号：US31212372

申请日：1972-12-04

Applicant: MONTEDISON SPA

Inventor： BEDETTI GIANFRANCO ,  PIERI GIOVANNI ,  DUCATO ALDO ,  HELD LLEWELLYN JOHN

IPC: C01G23/07 ,  C01B13/22 ,  C09C1/00 ,  C09C1/36 ,  C01G23/04

CPC classification number: C01B13/22 ,  C01P2004/62 ,  C01P2006/10

Abstract: Method for producing pigment quality titanium dioxide of controlled particle size by reacting gaseous titanium tetrachloride with an oxygen-containing gas in a reactor having a cylindrical duct, a coaxial cylindrical reaction chamber of diameter greater than the diameter of the duct and spaced below the duct and a frusto-conical divergent duct connecting the cylindrical duct to the reaction chamber, wherein the oxygencontaining gas is introduced through the cylindrical duct and the titanium tetrachloride is introduced into the frusto-conical section of the reactor at a variably selectable location therein.

Abstract translation: 通过在具有圆柱形导管的反应器中使气态四氯化钛与含氧气体反应生产颜料质量二氧化钛的方法，所述反应器具有直径大于管道直径并在管道下方间隔开的同轴圆柱形反应室， 将圆柱形管道连接到反应室的截头圆锥形发散管道，其中含氧气体通过圆柱形管道引入，并且四氯化钛在其中的可变选择位置被引入反应器的截头圆锥形部分。