The Reaction of Dolomite with $NH_4Cl$

Calcium and magnesium were widely distributed over the world and the use have been increased gradually. Under these circumstances, the reaction of dolomite with was carried out to develop a new process for the extraction of calcium and magnesium and to find the fundamental data for the reaction mechanisms from the reaction products. The overall reaction mechanism was as follows : . And the optimum condition for the reaction of dolomite with was as follows; reaction temp. : , reaction time : 30 min, weight ration() : 8.0, gas flow rate : , particle size(av.) : . Under the above condition, dissolved magnesium and calcium was 85.48%, 99.63% reapectively.