首页>
外国专利>
METHOD FOR MANUFACTURING RECYCLED AGGREGATE AND CALCIUM NITRATE FERTILIZERS USING WASTED CONCRETE CAPABLE OF USING CALCIUM NITRATE, THE BYPRODUCT OF THE MANUFACTURING PROCESS, AS FERTILIZERS
METHOD FOR MANUFACTURING RECYCLED AGGREGATE AND CALCIUM NITRATE FERTILIZERS USING WASTED CONCRETE CAPABLE OF USING CALCIUM NITRATE, THE BYPRODUCT OF THE MANUFACTURING PROCESS, AS FERTILIZERS
PURPOSE: A method for manufacturing recycled aggregate and calcium nitrate fertilizer using wasted concrete is provided to improve the quality of the recycled aggregate by reacting pulverized wasted concrete and nitric acid.;CONSTITUTION: Impurities are eliminated from wasted concrete, and the wasted concrete is pulverized. The pulverized product undergoes a wet processing process and a dry processing process. Sludge is eliminated from the pulverized product. A nitric acid aqueous solution is added to the sludge eliminated product. The product is separated into recycled aggregate and a calcium nitrate aqueous solution to obtain recycled aggregate without a lime component. The calcium nitrate aqueous solution is heat-dried at temperature between 130 and 150 degrees Celsius, and calcium nitrate fertilizers are produced.;COPYRIGHT KIPO 2011
展开▼
