Formaldehyde is a
central building block in the synthesis of many
compounds. It exhibits most of the chemical properties
of other aldehydes but is more reactive. An aqueous
solution of formaldehyde can be useful as a disinfectant
as it kills most bacteria and fungi (including
their spores). It is also used as a preservative
in vaccinations. Formaldehyde solutions are applied
topically in medicine to dry the skin, such as
in the treatment of warts. Many aquarists use
formaldehyde as a treatment for the parasite ichthyophthirius.
In some of the agrochemicals manufaturing also
we can get the dilute aqueous solution of Formaldehyde.
As per industrial practice, the aqueous stream
is treated with alkali to degrade formaldehyde
& then the aqueous stream is fed to the effluent
treatment plant. Thus valuable formaldehyde is
lost.
Geist has developed a Novel Extraction technology
to recover Formaldehyde from the aq. stream. Formaldehyde
is reacted with water immiscible alcohol to get
the hemiformal, which gets extracted in the organic
phase. Hemi formal is then decomposed to get formaldehyde
& alcohol. The process will give saleable
quality of Formaldehyde which can generate revenue.
Applications:
Generation of Dilute streams of Formaldehyde
Benefits:
|
