Dewatering process

Details Dewatering process Dewatering process

2008-03-04

2008-03-04

Manoharan, Virginia (Department: 1764)

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

C203S057000, C203S060000, C203S061000, C203S099000, C203SDIG019, C203SDIG021, C568S492000, C568S493000

Reexamination Certificate

active

07338579

ABSTRACT:
A formaldehyde-containing product is separated from a formalin solution containing formaldehyde, water, and methanol by distilling in the presence of a water entraining compound, especially methyl propionate or methyl methacrylate. The product contains substantially less water than in the solution and may be used, for example, in a further process which requires a source of formaldehyde containing a relatively low level of water, for example, the catalyzed reaction of methy propionate with formaldehyde and methanol to produce methyl methacrylate.

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