Samantray, J.; Anand, A.; Dash, B.; Ghosh, M.K.; Behera, A.K.
(ACS Omega, 5(25), 2020: 14990-14998)
To recover potassium from feldspar, a biowaste, i.e., eggshell, was used. The chief composition of eggshells is calcite. As it is a rich source of Ca, hence it is used with HCl to produce calcium chloride. Feldspar is an ...