Process for the electrooxidation of methanol to formaldehyde and

Details Process for the electrooxidation of methanol to formaldehyde and Process for the electrooxidation of methanol to formaldehyde and

1992-03-03

1993-06-29

Niebling, John

Chemistry: electrical and wave energy

Processes and products

204 72, 204 59R, C05B 302

Patent

active

052231020

ABSTRACT:
Formaldehyde and/or methylal are made by the electrooxidation of methanol in an apparatus which is divided into the anode compartment and the cathode compartment by a cationic membrane made of a fluoropolymer and having pendant fluorosulfonyl or sulfonic acid groups, which is coated on one side with platinum applied by the impregnation-reduction method, said coating serving as the anode. The cathode may be a metal layer on the opposite side of the membrane or a separate metal cathode. When the separate metal cathode is employed, the cathode compartment contains a liquid electrolyte, which is a concentrated inorganic acid, preferably phosphoric acid. Within specifically identified temperature ranges, the yield of formaldehyde and of methylal can be optimized by controlling the mole fraction or partial pressure of methanol feed.

REFERENCES:
patent: 3321527 (1967-05-01), Punderson et al.
patent: 4347109 (1982-08-01), Meshbesher
patent: 4457809 (1984-07-01), Meshbesher
patent: 4732655 (1988-03-01), Morduchewitz et al.
patent: 4959152 (1990-09-01), Fedkiw, Jr.
patent: 4962235 (1990-10-01), Morishita et al.
Electrocatalytic Synthesis of Methyl Formate from Methanol on a Platinum-Bonded Solid Polymer Electrolyte Membrane, Otsuka et al., Feb. 3, 1986, 1986 Elsevier Science Publishers BV pp. 401-404.
Solid Polymer Electrolyte Water Electrolysis, Takenaka et al pp. 397-403.

Affiliated with

Also associated with

Rating

Process for the electrooxidation of methanol to formaldehyde and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the electrooxidation of methanol to formaldehyde and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the electrooxidation of methanol to formaldehyde and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1752686