Production of melamine with LEWA diaphragm pumps
Melamine is obtained by the trimerization of urea. The urea is converted into melamine, ammonia and carbon dioxide (offgas) either in a catalytic low pressure process or in a non-catalytic high pressure process.
LEWA can reliably operate pumps for melamine processes in many applications with high temperatures and simultaneous high pressure using PTFE diaphragm pumps, e.g., at 155°C and about 230 bar.
Thus urea as an industrial raw material can be conveyed as a melt with the appropriate pump heads.
