Manufacture of formaldehyde

Details Manufacture of formaldehyde Manufacture of formaldehyde

1974-05-10

1976-11-30

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260643D, 202158, 261114R, 23263, 203 49, C07C 4516

Patent

active

039949770

ABSTRACT:
Manufacture of formaldehyde by oxidative dehydrogenation of methanol in the presence of a silver catalyst, wherein methanol and water are evaporated in the presence of air in a plate column containing a number of double plates each consisting of a sieve plate and a lower plate having the form of a shallow bowl and inclined at a specific angle to the horizontal, the resulting vaporous mixture then being reacted. The formaldehyde which may be produced by the process of the invention is a disinfectant, tanning agent, reducing agent and a valuable starting material for the manufacture of synthetic resins, adhesives and plastics.

REFERENCES:
patent: 2772081 (1956-11-01), Hibshman et al.
patent: 2819049 (1958-01-01), Manning, Jr. et al.
patent: 2853281 (1958-09-01), Hibshman et al.
patent: 2960322 (1960-11-01), Eld
Carlson, et al., Distillation, vol. IV, Interscience Publishers, pp. 469-476 (1965).
F.I.A.T. Report 999, Apr. 2, 1947.
Walker, Formaldehyde, 3rd Edition, pp. 8-24 (1967).

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