發(fā)布時間：2018-08-28 05:51

【摘要】：攀西地區(qū)是我國釩鈦磁鐵礦重要的成礦帶,是我國主要的鐵礦石基地之一,礦石儲量占我國鐵礦石總儲量的百分之十五左右。攀西地區(qū)礦床中的礦石主要含有鐵、釩、鈦外,同時還伴生有豐富的稀有分散元素,如鈧(Sc)、鎵(Ga)、鈷(Co)、鎳(Ni)、鍺(Ge)、鈮(Nb)以及鉑族元素(PGE)等。本文主要研究的是攀西地區(qū)的七個礦床:攀枝花、紅格、白馬、新街、黑古田、安寧以及太和,主要研究釩鈦磁鐵礦中稀有分散元素的分布以及富集規(guī)律。本論文以《攀枝花市釩鈦磁鐵礦中伴生稀散和貴金屬資源潛力評價及開發(fā)利用關(guān)鍵技術(shù)研究》項目(攀國土合子[2015]70號)為依托,主要研究攀西地區(qū)釩鈦磁鐵礦可綜合利用的伴生元素,其中包括鈧(Sc)、鎵(Ga)、釩(V)、鉻(Cr)、鈷(Co)、鎳(Ni)以及鉑族元素(PGE)。鍺(Ge)、銦(In)、鎘(Cd)由于含量很低,不具有綜合利用價值。鈮(Nb)、鉭(Ta)礦體主要賦存于堿性巖中,與釩鈦磁鐵礦體空間上分離,釩鈦磁鐵礦礦體中鈮、鉭含量普遍很低,在鐵礦開發(fā)利用中不具有綜合利用價值。鈧主要富集在輝石巖中,在鐵礦石中的含量普遍很低,選礦過程中主要進(jìn)入了尾礦中;鎵與鈧相反,主要富集在磁鐵礦中,鐵礦石中的含量顯著高于各類巖石,在選礦過程中主要進(jìn)入了鐵精礦中;釩、鈷與鐵呈較明顯的正相關(guān)關(guān)系,主要富集在鐵礦石中,鐵鈦氧化物中的含量遠(yuǎn)高于巖石,在選礦過程中主要進(jìn)入了鐵精礦中;鉻、鎳主要富集在巖體底部偏超基性的巖(礦)石中,與鐵、鈦的關(guān)系不明顯,各礦區(qū)含量變化很大,鐵鈦氧化物中的含量一般大于巖石。鎳主要富集在巖體底部硫化物中。鈧最富集的礦區(qū)為新街礦區(qū),其次是紅格礦區(qū),富集的巖石類型為輝石巖;鎵最富集的礦區(qū)為攀枝花礦區(qū),富集的巖石類型為富含磁鐵礦的輝長巖,鐵含量越高,越富集鎵;釩最富集的礦區(qū)為白馬礦區(qū),其次為攀枝花礦區(qū),主要富集在鐵礦石中;鉻最富集的礦區(qū)為新街和紅格礦區(qū);鈷最富集的礦區(qū)為紅格礦區(qū)和攀枝花礦區(qū),主要富集在鐵礦石中;鎳最富集的礦區(qū)為紅格礦區(qū),其次是白馬礦區(qū)和新街礦區(qū)。在紅格礦區(qū)已發(fā)現(xiàn)多個獨立鎳礦體,新街礦區(qū)鎳主要賦存于巖體底部;鉑族元素最富集的礦區(qū)為新街和紅格礦區(qū)。在新街礦區(qū)已圈出獨立鉑礦體。安寧礦區(qū)除釩略高,有一定的綜合利用價值外,其他元素含量很低,綜合利用價值不大。黑谷田礦區(qū)研究程度很低,從現(xiàn)有的資料來看,除橄欖輝石巖中鈧、鉻和鎳含量較高外,鐵礦石中伴生元素的含量都不高,綜合利用價值不大。本次較系統(tǒng)的研究了攀西地區(qū)釩鈦磁鐵礦中伴生的稀有分散元素以及有色金屬元素的富集規(guī)律,根據(jù)收集的大量資料和本次分析測試結(jié)果,開展了綜合分析研究,初步查明了紅格、攀枝花、白馬、新街、黑古田等礦區(qū)稀有分散元素分布的基本特征;明確了哪些礦區(qū)、哪類巖石和礦石中有何種稀有分散元素,哪些礦區(qū)稀有分散元素最富集、最具有綜合利用價值;優(yōu)選出了最具有開發(fā)價值的元素種類和潛力最大的礦區(qū)。
[Abstract]:Panxi area is an important metallogenic belt of V-Ti magnetite and one of the main iron ore bases in China. The ore reserves account for about 15% of the total iron ore reserves in China. Ge, Nb, PGE and so on. This paper mainly studies seven deposits in Panxi area: Panzhihua, Hongge, Baima, Xinjie, Heigutian, Anning and Taihe. It mainly studies the distribution and enrichment of rare dispersed elements in vanadium-titanium magnetite. Relying on the key technology research project of resource potential evaluation and development and utilization (Panzhizi [2015] 70), the associated elements of vanadium-titanomagnetite in Panxi area, including scandium (Sc), gallium (Ga), vanadium (V), chromium (Cr), cobalt (Co), nickel (Ni) and platinum group elements (PGE), germanium (Ge), indium (In), cadmium (Cd), are mainly studied, which are not available because of their low content. Nb and Ta ore bodies are mainly hosted in alkaline rocks and separated from V-Ti magnetite bodies in space. The contents of Nb and Ta in V-Ti magnetite ore bodies are generally very low, and have no comprehensive utilization value in iron ore development and utilization. Ga and Sc in tailings, contrary, mainly concentrated in magnetite, iron ore content is significantly higher than all types of rocks, mainly into iron concentrate in the process of mineral processing; Vanadium, cobalt and iron have a more obvious positive correlation, mainly concentrated in iron ore, iron and titanium oxide content is much higher than rock, mainly into the mineral processing process. In the iron concentrate, chromium and nickel are mainly concentrated in ultrabasic rocks (ores) at the bottom of the rock mass, but their relationship with iron and titanium is not obvious. The content of iron and titanium oxides varies greatly in each mining area. Nickel is mainly concentrated in sulfides at the bottom of the rock mass. Pyroxene is the most abundant type of gallium; Panzhihua ore district is the most abundant type of gallium; gabbro rich in magnetite is the most abundant type of rock, the higher the iron content, the more abundant gallium; Baima ore district is the most abundant vanadium, followed by Panzhihua ore district, mainly concentrated in iron ore; Xinjie and Hongge ore district is the most abundant chromium; and cobalt ore is the most abundant. Hongge ore district and Panzhihua ore district are mainly enriched in iron ore, Hongge ore district is the most nickel-rich mining area, followed by Baima mine district and Xinjie mine district. Independent platinum ore bodies have been circled. The content of other elements in Anning mining area is very low except for vanadium which is slightly high and has certain comprehensive utilization value. The research degree in Heigutian mining area is very low. The enrichment regularity of rare dispersed elements and non-ferrous metals associated with vanadium-titanium magnetite in Panxi area has been studied systematically in this paper. Based on a large amount of data collected and the results of this analysis and test, a comprehensive analysis has been carried out. The rare dispersed elements in Hongge, Panzhihua, Baima, Xinjie, Heigutian and other mining areas have been preliminarily identified. The basic characteristics of element distribution, which mining areas, which types of rocks and ores have what kind of rare dispersed elements, which mining areas have the most enriched rare dispersed elements and the most comprehensive utilization value, have been identified.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P618.31

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