Study on Solubility of Industrial Solid Waste Phosphogypsum in Sulfuric Acid
The dissolution of phosphogypsum in sulfuric acid solution was investigated using industrial waste phosphogypsum as raw material.The effects of acid concentration,temperature and dissolution time on the dissolution amount of phosphogypsum were discussed and compared with the whisker yield by single factor experiment.The optimal dissolution conditions were obtained by orthogonal method:dissolution time 20 min,acid concentration 10%and temperature 90℃.