A type zeolite

Patent Pending PROBLEM TO BE SOLVED: To provide a manufacturing method of A type zeolite which adjusts the components of the raw material in order to synthesize A type zeolite using only the industrial by-product such as blast furnace slag and the like, and heats and agitates the same in an alkaline aqueous sloution using a jar mill type reactor to manufacture A type zeolite, and to provide a removal and recovery method of magnesium and calcium from the steel industry by-product which recovers the material generated at the time of adjustment and effects the perfect recycling of the industrial by-product.