Chemistry: physical processes – Physical processes – Crystallization
Patent
1973-12-20
1976-12-28
Wolk, Morris O.
Chemistry: physical processes
Physical processes
Crystallization
23284, 23288S, 34 57A, 432 15, B01J 824, B01J 844, C01G 2104
Patent
active
039999513
ABSTRACT:
Apparatus for chlorinating metal-bearing materials, e.g., titaniferous ores, to produce metal halide, e.g., titanium tetrachloride. The apparatus comprises a cylindrical furnace having an interior portion providing a chlorination zone and a floor adjacent the lower portion of the chlorination zone. The floor contains a plurality of perforations extending the thickness of the floor, which perforations define a gas channel extending from a chlorine chamber located below the floor to a point of discharge in the chlorination zone. The perforations preferably contain gas distributor tubes having a gas bore in open gas communication with the perforations in the floor. The opening in the perforation or gas distributor tube is a single vertical opening, at least one principal linear dimension of the vertical opening, measured across the opening, being not greater than 7/32 inch. Means for introducing chlorine into the chlorine chamber and means for withdrawing reaction products from the shaft furnace are provided. Preferably the vertical opening has a cross-sectional area at the point of gas discharge of from about 0.00019 inch.sup.2 to about 0.038 inch.sup.2.
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Bowers Bobby O.
Brzozowski Stanley F.
Marcus Michael S.
PPG Industries Inc.
Stein Irwin M.
Wolk Morris O.
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