Selection logic, retrofit economics and mother-liquor yield — articles from three lines: technology deep-dives on evaporator and crystallizer selection, application solutions for specific wastewaters and process duties, and anonymized project case studies. New articles are published continuously.
Technology ArticlesApplication SolutionsProject Case Studies
Battery-grade LiOH.H2O production explained: MVR concentration vs multi-effect evaporation, 2205/titanium materials, DTB crystallization control, and the 50-80% OPEX reduction behind modern lithium refining.
How to treat and recycle mother liquor from MVR, multi-effect and low-temperature evaporators: formation mechanism, why generic dryers fail, scraped-surface vacuum crystallization to dry
Representative configuration of an MVR forced circulation evaporation and crystallization system treating 100 t/d high-sodium-salt wastewater from rare earth separation circuits at a plant
Lyocell economics depend on recovering more than 99% of NMMO: low-temperature falling-film multi-effect or MVR concentration, ion-exchange purification and hydrate crystallization close the solvent
Complete calculation chain for evaporation energy: energy balance, steam economy (0.8-0.9 single effect to 2.2-2.7 triple effect), MVR electricity at 15-22 kWh/m3, the three-term
Representative configuration of the evaporator system for a 70,000 tpy L-threonine plant in Northeast China: fermentation broth concentration and evaporative crystallization, with a comparable
How MVR forced-circulation evaporative crystallizers concentrate and crystallize lithium chloride from brine, spodumene leach liquor and battery-recycling streams on 30-60 kWh per ton of
Three-tier MVR maintenance: keep feed hardness at 500-1,000 mg/L to extend cleaning cycles, watch compressor temp rise/current/vibration daily, hold 1.5-3.0 m/s circulation, and shut
Representative configuration of a 1,000 t/d blended fruit and vegetable juice line in Xinjiang processing tomato, carrot, apple and cherry plum, with a triple-effect
Rare earth mining and smelting wastewater ZLD: two-stage ammonium chloride crystallization with MVR at ~37 kW·h per ton benchmark, heavy metal and organic control,
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