发明名称 |
PROCESS FOR MAKING PHOSPHORUS PENTOXIDE WITH UTILIZATION OF THE REACTION HEAT |
摘要 |
<p>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 water or a water/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the water or water/steam-mixture assuming an increased temperature being circulated, preferably under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh desalted water to be introduced into the cooling system; for hot gaseous phosphorus pentoxide issuing from the combustion chamber to be condensed or worked up into phosphoric acid; for the steam taken from the cooling system to be passed through a steam delivery pipe disposed in the upper portion of the combustion chamber, or through a delivery conduit for product gas containing phosphorus pentoxide; for the steam to be heated therein to a temperature of 400 DEG to 600 DEG C. under constant pressure, and for the steam so superheated to be used.</p> |
申请公布号 |
IN160622(B) |
申请公布日期 |
1987.07.18 |
申请号 |
IN1984MA26819 |
申请日期 |
1984.04.17 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
KUXDORF BERNHARD;LUHR PETER;THUMMLER URSUS;WERNER HUGO;KLEMM WALTER |
分类号 |
F22B33/18;C01B25/12;C01B25/20;F22D1/02;(IPC1-7):C01B25/00 |
主分类号 |
F22B33/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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