Recovery of cobalt component from 3-pentenoic ester synthesis

Details Recovery of cobalt component from 3-pentenoic ester synthesis Recovery of cobalt component from 3-pentenoic ester synthesis

1981-03-20

1982-09-21

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

423150, 423140, 560206, 252413, C01G 5100, C07C 2986, C07C 6738

Patent

active

043506682

ABSTRACT:
In a process for producing a 3-pentenoic ester which comprises reacting butadiene, carbon monoxide and an alcohol in the presence of a solvent and a catalyst selected from cobalt carbonyl or cobalt carbonyl complex, the improvement which comprises distilling the reaction mixture to remove organic volatile components comprised of the 3-pentenoic ester and the unreacted raw materials and the solvent and contacting the distillation residue with an organic solvent to dissolve and/or disperse the residue in the solvent and contacting the resulting organic solution with an aqueous acid solution to extract any cobalt component from the organic solution with the aqueous acid solution, and separating the aqueous acid solution containing the cobalt component from the organic solution, and neutralizing the aqueous acid solution with an alkaline solution to precipitate a cobalt component is disclosed.

REFERENCES:
patent: 3673154 (1972-06-01), Trevillyan
patent: 3778466 (1973-12-01), Matsuda
patent: 3956175 (1976-05-01), Shigeyasu
patent: 4169956 (1979-10-01), Kummer
patent: 4171451 (1979-10-01), Kummer

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