Process and apparatus for making phosphorus pentoxide with utili

Details Process and apparatus for making phosphorus pentoxide with utili Process and apparatus for making phosphorus pentoxide with utili

1984-04-16

1985-06-25

Doll, John

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

423304, C01B 2512

Patent

active

045253293

ABSTRACT:
The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy. To this end, the disclosure provides for the combustion to be effected inside a combustion chamber of which the walls are arranged so as to form a cooling system with cavities therein; for a liquid or liquid/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the liquid or liquid/steam-mixture assuming an increased temperature being preferably so circulated under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh liquid to be introduced into the cooling system; for hot P.sub.2 O.sub.5 issuing in vapor form from the combustion chamber to be condensed or worked up into desirable final product, the combustion chamber being a cylindrical vessel with a height/diameter-ratio of 2.5:1 to 5:1 and having 1 to 10 burners disposed axisymmetrically in its circular base plate.
The disclosure also relates to an apparatus for carrying out the process.

REFERENCES:
patent: 2356700 (1944-08-01), Rupp et al.
patent: 2532322 (1950-12-01), McFarlin
patent: 2644744 (1953-07-01), Hartwig et al.
patent: 3810740 (1974-05-01), Berg et al.
patent: 4105703 (1978-08-01), Motta
patent: 4219533 (1980-08-01), Hartlapp et al.
patent: 4252770 (1981-02-01), Thummler et al.
patent: 4379131 (1983-04-01), Daniel et al.
patent: 4450146 (1984-05-01), Klepeis

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