Production Method of Slag Powder Having Super Small Grain

摘要

PURPOSE: A method for manufacturing ultra fine slag powder is provided to cost-effectively increase the fineness of the slag powder through a simplified process. CONSTITUTION: A method for manufacturing ultra fine slag powder includes the following: Iron manufacturing/steel manufacturing slag is pulverized using a ball mill or a roller mill to obtain slag. The particle size distribution of the slag is between 100 and 150um. Strong acid or strong base are mixed with the pulverized slag. The mixed slag is stirred at room temperature. When the pH of the stirred slag is between 6 and 7 the stirred slag is dried at temperature between 110 and 120 degrees Celsius without/with a filtering process.