【摘要】：我國擁有豐富的鈦礦產(chǎn)資源,儲量居世界之首,占世界的45%,但貧礦多、富礦少,平均品位偏低。鈦鐵礦的選礦技術(shù)在幾十年間不斷進(jìn)步,目前鈦鐵礦的選別多用重-磁-浮聯(lián)合流程,浮選法是其中的重要工藝。針對我國礦產(chǎn)資源貧、細(xì)、雜的特點(diǎn),采用浮選工藝回收微細(xì)粒鈦鐵礦顯得日益重要。目前,鈦鐵礦的浮選捕收劑主要為脂肪酸和螯合物類有機(jī)藥劑。其中脂肪酸類捕收劑應(yīng)用廣泛且用量較大,一般為1000-4000g/t,因此,鈦鐵礦浮選精礦中常常吸附有大量捕收劑。我國攀枝花西部地區(qū)鈦儲量占全國的90.6%,在我國鈦資源開發(fā)中具有重要的戰(zhàn)略地位。攀枝花鈦選廠所用浮選捕收劑M2用量較大,達(dá)3600-4000g/t。M2在礦物顆粒表面吸附牢固導(dǎo)致鈦精礦中殘留了大量藥劑,在后續(xù)鈦精礦的高溫干燥過程中,殘留藥劑的燃燒及揮發(fā)造成生產(chǎn)過程及周邊環(huán)境的惡化。鑒于此,在非高溫條件下,對鈦精礦浮選精礦進(jìn)行脫藥研究具有重要意義。本論文針對攀枝花欽選廠鈦精礦浮選精礦,在分析精礦性質(zhì)、藥劑性質(zhì)等的基礎(chǔ)上,采用紅外光譜、Zeta電位、紫外分光光度和X射線衍射等分析方法,對鈦精礦脫藥的工藝和理論進(jìn)行了研究。利用紫外分光光度法對M2中主要成分油酸鈉制定了分析方法,對鈦鐵礦浮選精礦進(jìn)行了脫藥條件及脫藥工藝試驗(yàn)研究,對比分析了一次集中脫藥和兩段脫藥兩種工藝方案。一次集中脫藥工藝采用兩種藥劑組合,即氫氧化鈉(2000g/t)和硫酸鋁(4000g/t)(或硫酸鐵 4000g/t),TY-1(2000g/t)和硫酸鋁(5000g/t)時,鈦精礦脫藥率為40.23%-44.29%;采用兩段脫藥工藝時,第一段采用氫氧化鈉(2000g/t)和硫酸鐵(2000g/t)組合脫藥,第二段采用適量TY-1(2000g/t)和硫酸鋁(3000g/t)組合脫藥,鈦精礦的脫藥率為69.45%-71.24%。此外,對鈦精礦的脫藥機(jī)理進(jìn)行了探索研究,初步得到了 M2與鈦鐵礦的作用機(jī)理和欽精礦的脫藥機(jī)理。本研究對攀枝花選鈦廠的鈦精礦脫藥具有一定的指導(dǎo)作用,同時,對大量以脂肪酸類為捕收劑的氧化礦精礦的脫藥具有一定指導(dǎo)意義和參考價(jià)值。
[Abstract]:China has abundant titanium mineral resources and occupies the first place in the world, accounting for 45% of the world, but there are more poor ores, less rich minerals and lower average grade. The processing technology of ilmenite has been improving continuously in recent decades. At present, the separation of ilmenite is mainly used by the combined process of gravity, magnetism and flotation, among which flotation is an important process. In view of the characteristics of poor, fine and miscellaneous mineral resources in China, it is increasingly important to recover fine ilmenite by flotation process. At present, the flotation collector of ilmenite is mainly fatty acid and chelate organic reagent. The fatty acid collector is widely used and used widely, which is generally 1000-4000g / t. Therefore, a large amount of collector is often adsorbed in the flotation concentrate of ilmenite. The reserves of titanium in western Panzhihua occupy 90.6% of the total in China and play an important strategic role in the development of titanium resources in China. The amount of flotation collector M2 used in Panzhihua Titanium Concentrator is large, and the adsorption of 3600-4000g/t.M2 on the surface of mineral particles leads to the residue of a large number of reagents in the titanium concentrate, and in the drying process of the subsequent titanium concentrate at high temperature, Combustion and volatilization of residual chemicals cause deterioration of production process and surrounding environment. In view of this, it is of great significance to study the removal of titanium concentrate flotation concentrate under non-high temperature conditions. In this paper, the flotation concentrate of Panzhihua Qinshunchang Titanium concentrate was analyzed by infrared spectroscopy, Zeta potential, ultraviolet spectrophotometry and X-ray diffraction, on the basis of analyzing the properties of concentrate and reagent, etc. The technology and theory of detoxification of titanium concentrate were studied. The analytical method of sodium oleate, the main component of M2, was established by ultraviolet spectrophotometry. The condition and process of removal of ilmenite flotation concentrate were studied, and the two technological schemes of centralized and two-stage removal of ilmenite were compared and analyzed. When two kinds of medicament combination are used in the one time centralized detoxification process, that is, sodium hydroxide (2000g/t) and aluminum sulfate (4000g/t) (or ferric 4000g/t), TY-1 (2000g/t) and aluminum sulfate (5000g/t). The removal rate of titanium concentrate is 40.23- 44.29; In the two-stage detoxification process, sodium hydroxide (2000g/t) and ferric sulfate (2000g/t) were used in the first stage and appropriate amount of TY-1 (2000g/t) and aluminum sulfate (3000g/t) were used in the second stage. The removal rate of titanium concentrate is 69.45-71.24. In addition, the mechanism of removal of titanium concentrate was studied, the mechanism of action between M2 and ilmenite and the mechanism of removal of titanium concentrate were preliminarily obtained. This study has a certain guiding role for the removal of titanium concentrate from Panzhihua Titanium Concentrator, and also has certain guiding significance and reference value for a large number of oxidized ore concentrates with fatty acids as collector.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD951;TD923

【相似文獻(xiàn)】

相關(guān)期刊論文 前3條

1 陳升鈞;包裝觀念還需進(jìn)一步改變[J];w蕓，

本文編號：2394713