We concentrate on graphite equipment-based process engineering and chemical environmental protection process engineering that is advantageous to energy conservation and emission reduction with other equipment. We combine and customize our process solution by using our expertise in material, equipment and process.

    Purification of HCl

    • Customize plant capacity according to customer’s technical requirements
      HCl gas is produced by distillation of hydrochloric acid solutione
      Stripping columns with intensive fluid contact
      Production of highly pure, dry HCl gas with low inert gas and moisture contents
      Gas pressure and temperature in accordance with customer’s requirements
      Minimized consumption of steam and cooling water by optimal design
      No risk of explosion


      sulfur method to produce refined chloroacetic acid with byproduct hydrochloric acid

    Evaporation and crystallization

    • If the solubility of the salt changes only a little at fluctuating temperatures the evaporation crystallization preferably find applications
      In this process a solution is crystallized by evaporating the solvent through the supply of heat.
      The special design of the evaporation chamber makes is possible to operate the evaporation crystallizer as classifying crystallizer.
      In this case the crystals are separated by classification according to size in a sedimentation zone. The coarse portion may be discharged through an extra outlet while the fine portion remains in suspension.
      Our References
      Evaporation and crystallization MgSO4 pilot-plant
      0.3t/h water evaporation

    Mechanical vapor recompression

    • If the cost of electric power are lower than the cost for the production of steam, it is advisable to operate the vapor compression by means of electric power
      Live steam is only needed for starting-up of the plant
      Besides single-stage radial compressors also multi-stage machines and axial compressors may find application
      Electricity consumption of below 40Kwh per ton water evaporation
      Low operation cost and high condensate quality
      Mechanical vapor recompression may also be applied in multi-stage evaporation plants and evaporation crystallization plants.
      -evaporation of brine solutions in chlor-alkaline industry
      -concentration of brine solutions in salt industry
      -evaporation of aqueous solutions in chemical industry
      -recycling of special metals
      -concentration of waste water in environmental aspect
      -evaporation of milk, whey, sugar solutions etc. in food and beverages industry
      -concentration of solutions in petrochemical industry
      Our References
      Process flow diagram of MVR
      Titanium solution concentration with MVR to significantly reduce operating cost
      Capacity: 6.6t/h water evaporation

    Crystallization and recycling of NaCl/KCl in aluminum salt industry

    • Multi-stage evaporation process can be used
      Customize process solutions according to customer’s technical requirements
      Lab test can be conducted before scaling up to the industrial phase
      The lowest energy consumption achieved
      Maximize the heat recovery in the system
      Long service life
      Our References
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