Helipont provide our clients with liquid phase processes for the production of hexamine.

Liquid Phase Hexamine Plant

Description of Liquid Phase Process

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.

Flow chart
Main Equipment
  • Film-type evaporator
  • Air-flow dryer
  • Mother liquid filtration equipment
  • Waste water
  • Ammonia stripper
  • Reactor
  • Film Evaporator
  • Vapor-liquid separator
  • Concentrate tank
  • Evaporation pot
  • Crystallization receiver
  • Centrifuge
  • Spiral conveyor
  • Desalted water
Production Process
  • The formaldehyde solution and ammonia gas react in the reactor, generating hexamine.
  • Condense hexamine product to 60-65% concentration.
  • Evaporation, condensation, centrifuge and drying of 65% hexamine.
Annotation
  • The process requires the use of a set of mother liquid filtration equipment because the liquid formaldehyde and condensation batch operations are used, often producing impurities and side reactions that affect product purity.
  • For more information 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 unit Index Remark
Formaldehyde (37%) t 3.5～3.6
Ammonium (100%) kg 530～550
Circulating Cooling water t 250～300 Water temperature≤25℃P≥0.4MPa
Steam t 7.0～8.0 P≥0.4MPa
Electricity kW·h 180 380/220V 50Hz
Demineralized Water t 1～2 As per standard of D.W.

Projects Were Work on

Learn Another Process of Hexamine Plant
Company Brief

Helipont is a solutions provider, implementing engineering, procurement, and construction (EPC) projects involving formaldehyde and formaldehyde derivative production operations. We focus innovative efforts on two areas: chemical equipment and chemical trade. Our silver catalyst formaldehyde production process and related equipment has been successfully implemented by some of the world’s premier chemical processors, helping them minimize operating costs and handle by-products safely and effectively.

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