Process for the manufacture of paraformaldehyde

Details Process for the manufacture of paraformaldehyde Process for the manufacture of paraformaldehyde

1995-07-10

1997-11-11

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aldehyde or derivative thereof as reactant

528232, 528452, 528503, 568457, 568458, 568449, 526 65, 526 66, C08G 1202, C08G 1256

Patent

active

056865546

ABSTRACT:
The process comprises providing a formaldehyde solution at a concentration of 80-89%; heating the solution to a temperature of 80.degree.-100.degree. C.; pouring the heated solution over heated zones on a metal belt conveyor travelling from the heated zones to other, chilled zones. The formaldehyde solution is preferably previously mixed with a catalyst.

REFERENCES:
patent: 3772392 (1973-11-01), Paseologo et al.
patent: 4550213 (1985-10-01), Thigpen et al.

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