C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/384, 23/60
C01B 25/12 (2006.01) B01J 19/00 (2006.01)
Patent
CA 1210563
PROCESS AND APPARATUS FOR MAKING PHOSPHORUS PENTOXIDE WITH UTILIZATION OF REACTION HEAT ABSTRACT OF THE DISCLOSURE: The disclosure relates to a process for making phos- phorus 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 propor- tion of fresh liquid to be introduced into the cooling system; for hot P2O5 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 axisymmetri- cally in its circular base plate. The disclosure also relates to an apparatus for carry- ing out the process (Figure 1).
450208
Dorn Friedrich-Wilhelm
Kuxdorf Bernhard
Luhr Peter
Thummler Ursus
Werner Hugo
Clariant Gmbh
Fetherstonhaugh & Co.
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