1. Liquid Phase Process Description
The liquid phase process uses a 37% formaldehyde solution and ammonium. The hexamine solution is then dewatered by evaporator and enters the centrifugation and drying device in order to obtain hexamine. This is an advanced, easy process. Because of the use of evaporation for dehydration, the crystal culture period is long and the urotropine particles are larger.
2. Flow chart
3. Production Process
①The formaldehyde solution and ammonia gas react in the reactor, generating hexamine.
②Condense hexamine product to 60-65% concentration.
③Evaporation, condensation, centrifuge and drying of 65% hexamine.
1. Gas Phase Process Description
Gas phase processes save steam during the production process. Under vacuum conditions, use the formaldehyde’s potential heat and the heat generated from the reaction to evaporate the water in the hexamine solution. Gas phase processes for hexamine feature a short route, less side reactions and a high purity. Recycling operations with left over ammonia gas and methanol also remove environmental pollution and decrease consumption.
2. Flow Chart
3. Production Process
①The formaldehyde and ammonia gas react in the reactor, generating hexamine.
②Dewater the hexamine solution to get solid hexamine.
③Drying the solid hexamine.
Contact Person: Miss. Jessic
Tel: +86 13928889251
Fax: 86-020-22307821
