Process for the recovery of catalysts in the epoxidation and hyd

Details Process for the recovery of catalysts in the epoxidation and hyd Process for the recovery of catalysts in the epoxidation and hyd

1975-09-30

1980-04-08

Bernstein, Hiram H.

Distillation: processes, thermolytic

Fluidized bed

252417, C10G 932

Patent

active

041971612

ABSTRACT:
Catalysts used in the epoxidation or hydroxylation of water soluble olefinic compound with hydrogenperoxide are recovered by separating the catalyst as a distillation residue, the distillation residue is introduced into an inert material which is in whirling movement, e.g., as a fluidized bed, the organic compounds contained in the distillation residue are burned with oxygen or oxygen containing gases whereupon the catalyst compound separated on the inert whirling material together with the portion of the catalyst compound which accumulates in the solids separator connected at the outlet of the reactor is dissolved in water and the solution obtained again used for epoxidation or hydroxylation.

REFERENCES:
patent: 2164826 (1939-07-01), Langwell
patent: 2649463 (1953-08-01), Skelly
patent: 2758073 (1956-08-01), Krebs
patent: 2838575 (1958-06-01), Smith
patent: 3172913 (1965-03-01), Hornig
patent: 3240718 (1966-03-01), Gatsis
patent: 3410761 (1968-11-01), Slattery
patent: 3562150 (1971-02-01), Hamilton
patent: 3920449 (1975-11-01), Onoda
patent: 3926129 (1975-12-01), Wall
patent: 3947543 (1976-03-01), Thiel
Condensed Chemical Dictionary, Hawley Van Nostrand Reinhold Co., 8th Ed. 1971, N.Y. p. 882.

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