Process to avoid the formation of waste water during hexamine production (US Patent 5187274)

Patent number: 5187274 Granted: 1993-02-16 Filed: 1991-07-19 Inventors: Heinrich Hermann (Cologne, DE); Gunther Pelster (Sankt-Augustin, DE); Klaus Degener (Cologne, DE) Assignees: Josef Meissner GmbH & Co. (Cologne, DE)

Abstract

In a process to avoid the formation of waste water in the production of hexamine from ammonia and the stream of gas containing formaldehyde resulting from the catalytic oxidation of methanol on metallic oxide catalysts, or by oxidative dehydrogenation to formaldehyde,