Arrangement for the entrainment of particulate materials

Details Arrangement for the entrainment of particulate materials Arrangement for the entrainment of particulate materials

1981-11-20

1984-06-19

Gantz, Delbert E.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423613, 423614, 423 76, 414288, 406 55, C01G 23047, C01G 2300

Patent

active

044552882

ABSTRACT:
In a process for the production of titanium dioxide by the vapour phase oxidation of titanium tetrachloride in which process entrained inert particulate material is passed through equipment used to reduce or prevent the deposition of solids thereon, the quantity of inert particulate material entrained may be affected by the varying back pressure normally obtaining in the equipment. The control of this quantity may be improved by reducing pressure differences (by means of conduit 39) between the inlet (40) and outlet (36) of a mechanical feeding device (29, 30) for the solids. This entails the transmission of the pressure (from the conduit 26) into the solids delivery system 25(17) and this may be alleviated, optionally, by maintaining a head of solids in the system and/or by using a system of pressurized hoppers. The invention enables the quantity of inert particulate material used to be reduced.

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