Concentration of H2SO4

• Can design high concentration from 70 % to 96%
  And low concentration from 25 % to 68 %
  Natural or forced circulation
  Two or three-stage concentration system at different pressure levels significantly reduce steam consumption
  Our References
  

  Waste sulfuric acid regeneration in TiO2 industry
  Sichuan, China
  5 t/h treated volume, H2SO4: 24%-69%

  

  Waste sulfuric acid concentration in TiO2 industry
  Anhui, China
  15t/h water evaporation, H2SO4: 20%～25% - 55%

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.

   

  Applications
  -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

Concentration of dilute sulfuric acid in metallurgical, titanium dioxide, sulfuric acid and pesticide industries

• Two-stage and three-section evaporation 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
  Recycle of FeSO4.H2O
  Long service life
  

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