关键词: 钒钛磁铁矿　, 攀西地区　, 联合工艺　, 预选抛尾　, 智能化与绿色化

Abstract: The development and utilization of vanadium-titanium magnetite resources in the Panzhihua-Xichang (Panxi) region face challenges in processing lowgrade,complexly intergrown ores.Based on a systematic review of existing technological innovations,this paper extracts the adaptation patterns between mineral occurrence characteristics and processing technologies, integrates technical contents from multiple aspects including separation optimization,equipment development,reagent creation, and associated element recovery,and establishes a wholeprocess technical analysis framework.The results show that in the iron separation stage,technologies such as highpressure grinding roll preconcentration (with tailings discarding rate increased by approximately 40% and energy consumption reduced by about 35%),stage grinding and separation,and magnetic separation flotation combined purification achieve iron concentrate quality improvement and energy consumption reduction.In the titanium separation stage,the combined process of gravity separationmagnetic separationflotation,together with novel collectors and intel ligent equipment,increases the recovery of -0.038 mm fine ilmenite from about 20% to about 35%,with titanium concentrate grade exceeding 46%.Associated elements are synergistically recovered through a flotationmetallurgy combined process:vanadi um is recovered during the smelting of iron concentrate,while chromium,cobalt and nickel are enriched from iron separation tailings.The sodium roastingdirect reduction coupling process provides a new approach for the recovery of vanadium,iron and titanium.This paper systematically summarizes the existing wholeprocess development technologies,clarifies the adaptation log ic among equipment,reagents and processes,as well as the matching patterns between mineral occurrence and processing tech nologies,providing a reference for future technological optimization.Future development should focus on intellectualization and greenization to promote efficient and clean resource utilization,thereby ensuring national strategic resource security.

Key words: vanadiumtitanium magnetite,Panxi region,combined process,preconcentration tailings discarding,intellectu alization and greenization