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.
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 consumptionOur 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 industryOur 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 lifeOur References