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Formox process

    The '''formox process''' produces formaldehyde
    Industrially formaldehyde is produced by the catalytic oxidation of methanol The most commonly used catalysts are silver metal or a mixture of an iron oxide with molybdenum and vanadium In the more commonly used iron oxide system (formox process) methanol and oxygen react at 400°C to produce formaldehyde according to the chemical equation
    CH3OH + ½ O2 → H2CO + H2O

    The silver-based catalyst is usually operated at a higher temperature about 650°C On it, two chemical reactions simultaneously produce formaldehyde: the one shown above and the dehydrogenation reaction
    CH3OH → H2CO + H2

    Further oxidation of the formaldehyde product during its production usually gives formic acid that is found in formaldehyde solution found in ppm values