Method for extracting titanium dioxide from titanium-containing blast furnace slag

• Main Authors: PENG QINGSONG, LUO PEIQIANG, LUO HONGYING, WANG PAN
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

The invention discloses a method for extracting titanium dioxide from titanium-containing blast furnace slag, the method comprises the following steps: A, drying the titanium-containing blast furnace slag, and grinding into powder to obtain blast furnace slag powder; b, firstly adding sulfuric acid into the blast furnace slag powder, uniformly stirring, then adding hydrogen peroxide, standing and soaking to obtain a soaked mixture; c, carrying out solid-liquid separation on the soaked mixture, and washing a solid phase with hydrogen peroxide to obtain a hydrogen peroxide complexing solution; and D, decomposing the hydrogen peroxide complexing solution to obtain titanium dioxide. The method is low in economic cost and short in process, the obtained product is high in purity, high-value utilization of the titanium-containing blast furnace slag is achieved, an existing titanium extraction process is improved and optimized, and economic benefits and social benefits are well developed. 本发明公开了一种从含钛高炉渣中提取二氧化钛的方法，包括以