Method for the cooling of hot gaseous solids suspensions of tita

Details Method for the cooling of hot gaseous solids suspensions of tita Method for the cooling of hot gaseous solids suspensions of tita

1985-04-01

1987-01-06

Cline, William R.

Heat exchange

Regenerator

Checker brick structure

165 47, 165143, 165144, 165147, 165154, F24H 300

Patent

active

046339353

ABSTRACT:
The invention concerns a device for the cooling of hot gaseous solids suspensions, particularly for the cooling of hot gaseous TiO.sub.2 suspensions resulting from the production of titanium dioxide by vapor phase oxidation of titanium tetrachloride. The device consists of a number of coaxially connected constructional units, each of which consists of three jacketed tubes, i.e., tubes 1, 2 and 3, which are coaxially connected in such a way that tube 1 conically tapers toward tube 2 and that tube 3 is larger in diameter than tube 2. Heat transfer is twice as high in the device of the invention as in a comparable conventional cooling tube of uniform inner diameter; moreover, the demand of scrub solids needed to prevent the formation of deposits on its walls is reduced to one third of the quantity needed in a conventional cooling tube.

REFERENCES:
patent: 2914915 (1959-12-01), Sziklas et al.
patent: 3443630 (1969-05-01), Auld
patent: 3457038 (1969-07-01), Kulling et al.
patent: 3511308 (1970-05-01), Nerlinger

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