MANUFACTURING METHOD OF FERTILIZER USING FERRONICKEL SLAG

摘要

PURPOSE: A method for manufacturing a fertilizer using ferronickel slag is provided to supplement phosphoric acid components and increase the content of soluble silica acid by mixing the ferronickel slag and phosphate rock. CONSTITUTION: A method for manufacturing a fertilizer using ferronickel slag includes the following: The ferronickel slag based on SiO_2, and MgO is prepared. The weight ration of the MgO/SiO_2 is between 0.55 and 0.65. The ferronickel slag is pulverized into powder. Phosphate rock powder is mixed with the ferronickel slag powder to obtain a mixture. The mixture is heated to be molten. The molten material is cooled. The cooled material is dried and pulverized. Propolis, sericite, and a meta-sodium silicate aqueous solution are mixed with the pulverized material. An extrusion process and a microwave irradiating process are followed.