Learn About Formaldehyde Concentration Technology

There are two kinds of dilute formaldehyde concentration and recovery technologies commonly used, which are vacuum flash distillation separation and pressure distillation concentration. The former will again produce about 8% dilute formaldehyde in the process of concentration. The latter recycled get 36-46% formaldehyde solution, but in the process of pressure distillation, with the increase of pressure, formaldehyde disproportionation reaction to generate formate, this will not only cause loss of formaldehyde, more important is the serious corrosion of equipment, formic acid this problem using rank higher special steel can be used to solve, but investment will be too high, is not the economy.
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Formaldehyde Concentration Technology

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