Fe3O4 was prepared by using chemical precipitation in dealing with chromium residue simultaneously.
利用化学共沉淀法，在处理铬渣的同时，制备四氧化三铁。
In this paper, preparation processes of amorphous silica using Henan Zr-containing silica residue as raw materials with chemical precipitation and direct neutralization methods were researched.
本论文以河南锆硅渣为原料，研究了分别采用化学沉淀法和直接中和法制备白炭黑的技术和工艺。
In this paper, preparation processes of amorphous silica using Henan Zr-containing silica residue as raw materials with chemical precipitation and direct neutralization methods were researched.
本论文以河南锆硅渣为原料，研究了分别采用化学沉淀法和直接中和法制备白炭黑的技术和工艺。
应用推荐