Process for the recovery of high purity squaric acid

Details Process for the recovery of high purity squaric acid Process for the recovery of high purity squaric acid

1984-08-31

1985-06-18

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

568366, 568381, C25C 100

Patent

active

045239800

ABSTRACT:
A process is disclosed for the recovery of high purity squaric acid from squarate containing solids from the electrochemical cyclization of carbon monoxide, involving contacting the squaric acid containing product with a two-phase mixture of strong, nonoxidizing aqueous acid and an immiscible organic solvent, followed by separating the solid, substantially pure squaric acid from the resulting three-phase mixture.

REFERENCES:
patent: 3833489 (1974-09-01), Ercoli
patent: 4159387 (1979-06-01), Bellus

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