Formox process: Difference between revisions
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The '''Formox process''' produces [[formaldehyde]]. Formox is a registered trademark owned by Johnson Matthey.<ref>{{cite web|url=http://www.formox.com|title=Formaldehyde - Johnson Matthey|website=www.formox.com}}</ref> The process was originally invented jointly by Swedish chemical company [[Perstorp Group|Perstorp]] and Reichhold Chemicals .<ref>{{Cite book|url=https://books.google.com/books?id=qoXNBQAAQBAJ&q=formox+perstorp+history&pg=PA132|title=Encyclopedic Dictionary of Named Processes in Chemical Technology|last=Comyns|first=Alan E.|date=2014-02-21|publisher=CRC Press|isbn=9781466567771|language=en}}</ref> |
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The Formox® process produces formaldehyde. |
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Industrially, formaldehyde is produced by catalytic oxidation of methanol. The most commonly used catalysts are silver metal or a mixture of an iron oxide with molybdenum and/or vanadium. In the more commonly used Formox |
Industrially, formaldehyde is produced by [[Catalysis|catalytic]] [[oxidation]] of [[methanol]]. The most commonly used catalysts are [[silver]] metal or a mixture of an [[iron oxide]] with [[molybdenum]] and/or [[vanadium]]. In the recently more commonly used Formox process using iron oxide and molybdenum and/or vanadium, methanol and [[oxygen]] react at 300-400°C to produce formaldehyde according to the chemical equation: |
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[[methanol|CH<sub>3</sub>OH]] + ½ [[oxygen|O<sub>2</sub>]] → H<sub>2</sub>CO + [[water (molecule)|H<sub>2</sub>O]]. |
:[[methanol|CH<sub>3</sub>OH]] + ½ [[oxygen|O<sub>2</sub>]] → H<sub>2</sub>CO + [[water (molecule)|H<sub>2</sub>O]]. |
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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: |
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: |
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[[methanol|CH<sub>3</sub>OH]] → H<sub>2</sub>CO + [[hydrogen|H<sub>2</sub>]] |
:[[methanol|CH<sub>3</sub>OH]] → H<sub>2</sub>CO + [[hydrogen|H<sub>2</sub>]] |
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Further oxidation of the formaldehyde product during its production usually gives formic acid that is found in formaldehyde solution, found in |
Further oxidation of the formaldehyde product during its production usually gives [[formic acid]] that is found in formaldehyde solution, found in [[parts per million]] values. |
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==References== |
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Formox® is a worldwide registered trademark owned by Perstorp Specialty Chemicals AB, Sweden - Home page at www.perstorp.com. |
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{{Reflist}} |
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Latest revision as of 10:10, 2 October 2020
The Formox process produces formaldehyde. Formox is a registered trademark owned by Johnson Matthey.[1] The process was originally invented jointly by Swedish chemical company Perstorp and Reichhold Chemicals .[2]
Industrially, formaldehyde is produced by catalytic oxidation of methanol. The most commonly used catalysts are silver metal or a mixture of an iron oxide with molybdenum and/or vanadium. In the recently more commonly used Formox process using iron oxide and molybdenum and/or vanadium, methanol and oxygen react at 300-400°C to produce formaldehyde according to the chemical equation:
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:
Further oxidation of the formaldehyde product during its production usually gives formic acid that is found in formaldehyde solution, found in parts per million values.
References
[edit]- ^ "Formaldehyde - Johnson Matthey". www.formox.com.
- ^ Comyns, Alan E. (2014-02-21). Encyclopedic Dictionary of Named Processes in Chemical Technology. CRC Press. ISBN 9781466567771.