Gas Phase Hexamine Plant

Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
Gas Phase Hexamine Plant
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Description of Gas Phase Process

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.

Flow chart
Main Equipment
  • Ammonia reactor
  • Ammonia Absorption Tower
  • Off-gas Washing Tower
  • Mother liquid seal trough
  • Vacuum pump
  • Spiral conveyor
  • Air heater
  • Crystallization head tank
  • Pneumatic drier
  • Off-gas absorption tower
  • Hot SW tank
  • Off-gas boiler
  • Cyclone separator
  • Desalted water
Production Process
  • The formaldehyde and ammonia gas react in the reactor, generating hexamine.
  • Dewater the hexamine solution to get solid hexamine.
  • Drying the solid hexamine.

Annotation: For more information and details on the production process, please do not hesitate to contact us.

Product Specifications
Item Superior First Grade Acceptable
Purity % ≥ 99.3 99 98
Moisture % ≤ 0.5 1
Ashes % ≤ 0.03 0.05 0.08
Aqueous solution appearance Acceptable -
Heavy Metal as Pb2+ % ≤ 0.001 -
Chloride as Cl- % ≤ 0.015 -
Sulphate as SO42- % ≤ 0.02 -
Ammonium as NH4+ % ≤ 0.001 -
Feedstock Consumption Quota
Particular Index Remark
formaldehyde (37%) 3.5t Equivalent methanol 1.575t
ammonium (100%) 530kg Free of oil and water
Circulating Cooling water 150t Water temperature≤31℃ P≥0.4MPa
Steam 3.0-4.0t P≥0.6MPa
Electricity 150kW·h 380/220V 50Hz
Demineralized Water 1~2t

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