METHOD FOR PRODUCING ORGANIC CALCIUM HYDROXIDE AND ORGANIC NANO CALCIUM CARBONATE USING SHELLS

摘要

The present invention relates to a method for producing organic calcium hydroxide and organic nano calcium carbonate using shells, which are usually disposed. The method includes the steps of: washing the shells; sintering the washed shells at 1,200°C for 30-60 minutes after increasing the temperature up to 1,200°C at a speed of 10°C per minute; cooling the shells after the temperature of a sintering furnace is cooled down to be 400-600°C after the sintering step and then taking out of the sintered shells; quenching 100 g of the sintered shells with 300-600 g of water and agitating the sintered shells at a rational speed of 200-400 per minute for 30 minutes; filtrating the shells to separate the shells into powder slurry and a filtrate after agitation; obtaining organic calcium hydroxide by injecting carbon dioxide into the filtrate and maintaining the reaction temperature of the inside of a reactor to be 400-600°C and maintaining the rotational speed per minute to be 100-300; and obtaining dried organic calcium carbonate powder by drying the organic nano calcium carbonate at 100±10°C.;COPYRIGHT KIPO 2015