Method for improving ore phase structure of sintering ore

• Main Authors: NIU YUEWEI, ZHANG SHUHUI, LIU XIAOJIE, LI YINGTAO, MA JIANJUN, ZHU HONGFANG, QIE YANA, LI FUMIN, WEI XIUFANG, WANG JIANFANG, SUN YANQIN, WANG XIAOGUANG, WANG YANJIANG, LI XIAOHAI, FAN CHANGHONG, LYU WANFENG, XU ZIQIAN, ZHAO WENSHU
• Format: Patent
• Language: Chinese; English
• Published: 25.02.2020
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for improving the ore phase structure of sintering ore. An additive is added in a sintering mixture. The additive is composed of the following substances including, bymass, 10-20 parts of H3BO3, 67-85 parts of CaCl2, 5-10 parts of NaCl and 1-3 parts of KMnO4. By means of the method, intensive study and repeated testing are conducted for improving the quality of the sintering ore, and the additive is designed. A water solution of the additive is added into the sintering mixture, Fe3O4 can be promoted to be cemented to calcium ferrite and dicalcium silicate to form an interwoven corrosion structure in the sintering process, porphyritic textures in the sintering ore are reduced, stability of the ore phase of the sintering ore is improved, formation of the dicalcium silicate is reduced, generation of the needle-like calcium ferrite is obviously promoted, uniformity of the ore phase of the sintering ore is improved, the microstructure of the sintering ore is effectively improved, a