Oxygen → Methacrylic Acid

HRID 2413993Notes

Reaction equation

HRID 2413993 reaction equation
[C:1]([OH:6])(=[O:5])[CH:2]([CH3:4])[CH3:3].O=O>>[C:1]([OH:6])(=[O:5])[CH:2]([CH3:4])[CH3:3].[C:1]([OH:6])(=[O:5])[C:2]([CH3:4])=[CH2:3]

Participants

4

Reactant 2

HCID 977OxygenHCID 6590Isobutyric Acid2×

Product 2

HCID 4093Methacrylic AcidHCID 6590Isobutyric Acid

Procedure

A vaporous mixture of isobutyric acid and oxygen (as air) in a molar ratio of 1:1:5 was conducted at 340° C. over 169.9 g (130 ml) of the orange colored bead catalyst in a recirculating reactor with a loading of the pure catalyst mass of 2.364 (10-4) mole of isobutyric acid per gram of catalytic mass and per minute. Under these conditions, an isobutyric acid conversion of 70.2% and a selectivity of methacrylic acid of 76% were obtained. The space-time yield of methacrylic acid was 287 grams/liter/hour.

Sources & evidence

ORD record
ord-3020b5e6aab6496faf42a3c68a850d3a
Source dataset
uspto-grants-1988_01
Patent number
US04720575

Reaction notes

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