Manufacturing method of calcium phosphate using carbide sludge

摘要

The present invention relates to a method for producing high purity calcium phosphate by recycling carbide sludge, which is a byproduct produced during the production of acetylene gas, comprising a first step of preparing calcium hydroxide by defoaming and decarburizing the carbide sludge generated as a by-A second step in which water is added to the calcium hydroxide to obtain a lime oil, and phosphoric acid is added dropwise to synthesize the reaction mixture; and dewatering the reaction product followed by heat treatment at a temperature of 800 to 1300C. And a process for producing calcium phosphate.