stygian
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Formaldehyde
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Production
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 250°C to produce
formaldehyde according to the chemical equation
2 CH3OH + O2 → 2 H2CO + 2 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.
On a smaller scale, formalin can be produced using a whole range of other methods including conversion from ethanol instead of the normally-fed
methanol feedstock. Such methods however are of less commercial importance.
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Does anybody know what some of these many other methods they hint at might be?
[Edited on 10-6-2006 by stygian]
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jimmyboy
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here is another..
http://frogfot.com/synthesis/formaldehyde.html
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kclo4
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If you are just wanting formaldehyde, you can go down to walmart and buy performance. and either keep it in its polymerized state, or decompose it
into the gas.
Its in the auto section and its called champa-chem
[Edited on 11-6-2006 by kclo4]
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