370. CHURCH, H. [Formaldehyde From Carbon Monoxide and Hydrogen.] French Patent 519,649, 1919. Chem. Zentralb., 1921, IV, p. 653.

Patent Abstracts

CH₂O is obtained by passing a mixture of molecular amounts of dry HCl, CO, and H₂ at 200º-300º over a mixture of Cu chloride with Cu, Fe, or Ni. Formic chloride is formed as the intermediate product, which is then decomposed by the H₂ to the CH₂O and HCL. The reaction takes place at relatively low velocity at 200º and <300º quantitatively.

CHURO, L. N. See abs. 265.

CIAMPI, C. See abs. 3990.