Oxidation having pressure drop difference and oxidation reactor and its use

PURPOSE: To protect a reaction apparatus in succession to a mixing apparatus against excessive heat generated at the time of oxidation and to enable high- temp. operation by providing this reaction apparatus with a central zone having a first packing material and a peripheral zone having a second packing material. CONSTITUTION: The reaction apparatus 4 succeeding to the mixing apparatus 3 has the central zone having at least one packing material suitable for delineating the multiple spaces having passages having a size at least equal to the distance for wedging off the flame generated at the time of oxidation of charge raw material and at least one peripheral zone having at least one second packing material suitable for delineating the multiple spaces having the passages having the size smaller than the size of the passages of the central zone. The pressure drop of the second packing material is larger than the pressure drop of the first packing material. The second packing material forms a sleeve 10 enclosing the first packing material. This sleeve 10 is manufactured by at least one refractory and heat insulating material. Consequently, the reaction apparatus is protected against the excessive heat generated at the time of the oxidation and the high-temp. operation is made possible. COPYRIGHT: (C)1991,JPO