Calcium/Strontium/Barium Sulfates TRIZ Cases
- Battery-Recycled Sodium Sulfate for Calcium Sulfate Recovery
Calcium chloride effluent is reacted with battery-derived sodium sulfate to precipitate calcium sulfate and turn disposal waste into useful products.
- Rotary Scraper Plate Structure for Low-Leakage Slurry Discharge
Overlapping plate openings and elastic sealing reduce slurry leakage while discharging heavy gravel and metal from gypsum tanks.
- Salt Cavity Brine Recycling in Sodium Carbonate and Calcium Sulfate Production
Using sodium chloride effluent as salt-cavity extraction liquid recovers brine for sodium carbonate and calcium sulfate production while cutting discharge.
- Sodium Chloride Effluent Recycling for Soda Ash and Gypsum Production
Concentrated sodium chloride recovered from calcium sulfate effluent is reused in soda ash production to cut waste discharge and raw material loss.
- NaCl Liquor Recycling for Calcium Sulfate Precipitation
Recycled NaCl liquor dissolves sodium sulfate before gypsum precipitation, cutting waste discharge, water use, and raw material loss.
- Vacuum Calcining of Gypsum for Low-Energy Hemihydrate Production
Vacuum calcining removes water of crystallization from gypsum dihydrate at 60–125°C, reducing energy use and thermal damage.