3564. ----- [STANDARD OIL CO.] Temperature Control in Chemical Reactions Employing Powdered Catalytic Material. British Patent 626,070, July 8, 1949. Chem. Abs., vol. 44, 1950, p. 2294.

Temperature in a fluidized bed of powdered catalyst in a reaction zone is controlled by introducing a 2d solid material, which is inert and in powdered form such that it is carried through the reactor by the gases under treatment. The inert material is recovered, cooled, and returned to the reactor.

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