Oxalic Acid → HCID 178526029, compound

HRID 1016719Notes

Reaction equation

[O-2].[O-2].[O-2].[O-2].[O-2].[V+5:6].[V+5].[C:8]([OH:13])(=[O:12])[C:9]([OH:11])=[O:10].[V]>O>[C:8]([O-:13])(=[O:12])[C:9]([O-:11])=[O:10].[V+5:6].[C:8]([O-:13])(=[O:12])[C:9]([O-:11])=[O:10].[C:8]([O-:13])(=[O:12])[C:9]([O-:11])=[O:10].[C:8]([O-:13])(=[O:12])[C:9]([O-:11])=[O:10].[C:8]([O-:13])(=[O:12])[C:9]([O-:11])=[O:10].[V+5:6]

Participants

Conditions

Temperature: 85 °C

Procedure

Vanadium pentoxide (V2O5) (229 g) was added to water (500 mL), to thereby yield a mixture, and an aliquot of oxalic acid (477 g) was added to the mixture with stirring at 80-90° C. so as to dissolve the vanadium compound, to thereby yield a solution of vanadium oxalate. Another aliquot of oxalic acid (963 g) was added to water (400 mL), and the resultant mixture was heated to 50-60° C. To the mixture, a solution of chromic anhydride (CrO3) (252 g) in water (200 mL) was added under sufficient stirring so as to dissolve the components, to thereby yield a solution of chromium oxalate. The thus-yielded solutions were mixed at 50-60° C., to thereby prepare a V-Cr-containing solution. To the V-Cr-containing solution were added a solution of phosphomolybdic acid (H3(PMo12O40).20H2O) (41.1 g) dissolved in water (100 mL), and a solution of potassium acetate (CH3COOK) (4.0 g) dissolved in water (100 mL). Subsequently, a 20 wt. % aqueous silica sol (containing Na2O (0.02 wt. %)) (2,500 g) was added, to thereby form a slurry.

Workup

customto thereby yield a mixture

Sources & evidence

ORD record: ord-1d7cc88abcb546fc99ee381596a72e29
Source dataset: uspto-grants-2002_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06476269B2

Reaction notes

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