| 摘要 |
Provided is a method for preparing nanometer titanium dioxide. The method comprises the following steps: (1) dissolving ilmenite powder using hydrochloric acid to obtain a raw ore solution; (2) eliminating the iron element in the raw ore solution to obtain a final solution containing titanium ions; (3) heating the final solution for hydrolysis to obtain a hydrolysis product containing titanium dioxide; and (4) calcining the obtained hydrolysis product to obtain nanometer titanium dioxide. The method has the advantages that raw materials can be easily obtained, the energy consumption is low, both rutile type titanium dioxide and anatase type titanium dioxide can be produced, and the product has high purity, small particle diameter, small particle diameter distribution range and good dispersibility. |
