Process for preparing glycolic acid and its polymers

Details Process for preparing glycolic acid and its polymers Process for preparing glycolic acid and its polymers

1975-07-29

1977-10-04

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5906

Patent

active

040524523

ABSTRACT:
A process is disclosed for preparing glycolic acid and its polymers starting from formaldehyde, wherein the formaldehyde is reacted with carbon monoxide in concentrated H.sub.2 SO.sub.4 as reaction medium, in the presence of a catalyst based on a compound of Cu (I) or of Ag, and at a temperature ranging from 0.degree. to 90.degree. C and at a pressure between 0.1 and 30 atmospheres.

REFERENCES:
patent: 2152852 (1939-04-01), Loder
patent: 2443482 (1948-06-01), Shattuck
patent: 3754028 (1973-08-01), Lapporte et al.

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