PREPARING METHOD OF CALCIUM SOLUTION FROM LIMESTONE

摘要

The present invention relates to a method for manufacturing a calcium solution from limestone and, more specifically, to a method for manufacturing a calcium solution from limestone which is characterized by stirring and mixing then filtering limestone and a strong acid. The method for manufacturing a calcium solution from limestone is characterized by stirring and mixing then filtering limestone and 2-10 M of nitric acid, wherein the limestone of mixing ratio of 50-500 g/L is mixed for the total volume of the nitric acid, and the limestone is dissolved in dissolution rate of 98-99%.