Chemistry: electrical and wave energy – Processes and products
Patent
1982-01-07
1983-12-06
Tung, T.
Chemistry: electrical and wave energy
Processes and products
204 79, 204 82, 204 86, C25B 302
Patent
active
044191952
ABSTRACT:
According to one embodiment of the improved process of this invention, dicobalt octacarbonyl is produced in liquid medium by subjecting an aqueous solution of a tetracarbonylcobaltate salt in the presence of a solvent for dicobalt octacarbonyl to an externally applied voltage and electrical current at a magnitude and for a time sufficient to convert at least a portion of the tetracarbonylcobaltate anion to dicobalt octacarbonyl which is efficiently extracted into said solvent, thereby producing a solvent phase which can be recovered and passed to a cobalt-catalyzed olefin hydroformylation reaction zone as the source of at least a portion of the catalyst and olefin required in the olefin hydroformylation reaction to form the corresponding aldehydes. It has been surprisingly found that such a two-phase electrolysis can be performed to efficiently provide high yields of dicobalt octacarbonyl while substantially avoiding the fouling problems associated with aqueous-phase electrolysis.
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Exxon Research & Engineering Co.
Murray, Jr. Jack B.
Tung T.
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