本文關(guān)鍵詞： 高鉻型釩鈦磁鐵礦 綜合利用 高爐冶煉 非高爐冶煉 氣基豎爐直接還原 熔分　出處：《鋼鐵研究學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：高鉻型釩鈦磁鐵礦是一種典型的多金屬共伴生礦產(chǎn)資源,具有極高的綜合利用價(jià)值。目前主要的冶煉流程為高爐—轉(zhuǎn)爐。該工藝處理量大、生產(chǎn)規(guī)模大、技術(shù)成熟,但有價(jià)組元利用率低、資源浪費(fèi)嚴(yán)重、環(huán)境負(fù)荷高。并且轉(zhuǎn)底爐、回轉(zhuǎn)窯等非高爐流程亦具有能耗高、鈦渣品位低活性差等一系列缺點(diǎn)�；跉饣Q爐直接還原的優(yōu)越性,研發(fā)了高鉻型釩鈦礦氧化造塊—?dú)饣Q爐直接還原—熔分新工藝。高鉻型釩鈦礦適宜氧化焙燒條件為1 300℃下焙燒20min;在1 100℃、V(H2)/V(CO)=5/2條件下還原35min,還原率達(dá)95%;最佳熔分條件為配碳比1.2,熔分溫度1 650℃、熔分時(shí)間45min、CaF2配量2%(質(zhì)量分?jǐn)?shù)),堿度1.1。該種工藝下鐵、釩、鉻、鈦收得率分別約為99%、98%、95%和95%,實(shí)現(xiàn)了有價(jià)組元的高效分離,是高鉻型釩鈦礦高效低碳綜合利用的首選技術(shù)之一,為攀枝花釩鈦礦的綜合利用提供了參考。
[Abstract]:High chromium type vanadium titanomagnetite is a typical polymetallic associated mineral resource with high comprehensive utilization value. At present, the main smelting process is blast furnace converter. However, the utilization ratio of valuable components is low, the waste of resources is serious, and the environmental load is high. Moreover, the non-blast furnace processes such as rotary furnace and rotary kiln also have a series of shortcomings, such as high energy consumption, low activity of titanium slag, etc. Based on the superiority of direct reduction of gas base shaft furnace, A new process of oxidation block making of high chromium vanadium titanium-gas base shaft furnace was developed. The suitable conditions for oxidation roasting of high chromium type vanadium titanite are 1 300 鈩，

本文編號：1494215