Apparatus for the production of phosphoric acid

Details Apparatus for the production of phosphoric acid Apparatus for the production of phosphoric acid

1979-10-17

1981-02-24

Scovronek, Joseph

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

422202, 422224, 422234, 422235, 422240, 423317, B01J 1902, B01F 500, F28D 702, C01B 2516

Patent

active

042527708

ABSTRACT:
The invention relates to an apparatus for the production of phosphoric acid by subjecting yellow phosphorus to combustion inside a combustion tower, the apparatus comprising a cone-shaped shell with a flat bottom of acidproof material forming the combustion tower, the cone ratio of the shell being 1:10 to 1:12. An upwardly-directed off-gas outlet is secured to the lower portion of the shell and a plurality of downwardly directed spray nozzles is arranged so as to open through the middle portion of the shell into the interior of the combustion tower. An acid-receiving cup with an overflow weir is positioned near the upper end of the shell, the acid-receiving cup surrounding the combustion tower concentrically, being gas-tightly connected to, and supporting, a self-supporting cone-shaped tower cover having a passageway passed centrally through it. The overflow weir is formed of a tubular-annular structure disposed completely horizontally inside the acid-receiving cup. The tower cover forms, with respect to the horizontal, an angle .alpha. of at least 19.degree.. A water-cooled air inlet and a tubular holding means terminating in a phosphorus spray nozzle are hooked concentrically with respect to one another in, and are passed through the passageway in the cover.

REFERENCES:
patent: 2708620 (1955-05-01), Winnicki
patent: 3057700 (1962-10-01), Gross
patent: 3272597 (1966-09-01), Beltz et al.
patent: 3526482 (1970-09-01), Beltz et al.
patent: 3810740 (1974-05-01), Berg et al.
patent: 4098582 (1978-07-01), Takeda

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