Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Responsive to liquid level
Patent
1979-02-12
1981-05-26
Garris, Bradley
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Responsive to liquid level
422190, 422191, 422194, 422200, 422215, 422226, 422231, 422229, 422235, B01J 810, B01J 812, C07C 5121, G05D 900
Patent
active
042698057
ABSTRACT:
A multi-stage reactor for the oxidation of alkyl aromatics, e.g. a mixture of p-xylene and methyl p-toluate in a liquid phase reaction mixture with oxygen-containing gases, e.g. air, under elevated pressure and at an elevated temperature in the presence of an oxidation catalyst is in the form of an elongated closed tank with a multiplicity of neighboring reaction chambers arranged successively from one end to the other end of the tank for containing the liquid reaction mixture at predetermined levels in each chamber. The reactor is provided with an oxidizing gas feed system for introducing an oxidizing gas into each chamber, feed means for introducing at least one alkyl aromatic reactant and an oxidation catalyst into at least one of the reaction chambers, a vapor-collecting conduit means in communication with each of said chambers for removing reaction gas from each of said chambers, and a discharge means for removing the oxidized product from the reactor tank. An internally disposed cooling conduit system containing a coolant for removing the heat of reaction is provided and includes a group of cooling conduits for each of the reaction chambers. These groups have horizontally disposed cooling conduits through which a cooling medium flows.
REFERENCES:
patent: 2760850 (1956-08-01), Lambert et al.
patent: 2920124 (1960-01-01), Stiles et al.
patent: 3065061 (1962-11-01), Fett
patent: 3199959 (1965-08-01), Dempsey
patent: 3271433 (1966-09-01), Bentz
patent: 3845117 (1974-10-01), Kollar
patent: 3883309 (1975-05-01), Ishizawa et al.
Schoengen Anton
Schroeder Heinrich
Dynamit Nobel Aktiengesellschaft
Garris Bradley
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