本文選題：黑鎢礦 + GY浮選法��； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：我國(guó)鎢資源的開(kāi)發(fā)和利用以黑鎢礦為主,目前,我國(guó)鎢精礦主要由黑鎢礦提供。由于長(zhǎng)期超負(fù)荷開(kāi)采,品位高、易于用重選回收的粗粒黑鎢礦資源日漸枯竭,浮選法處理細(xì)粒級(jí)黑鎢礦已成為回收該類礦石最主要的方法。黑鎢細(xì)泥伴生組分復(fù)雜,浮選礦漿中大量的金屬離子是影響黑鎢礦浮選的重要因素。論文旨在通過(guò)對(duì)金屬離子在黑鎢礦單礦物浮選中的作用機(jī)理研究,為實(shí)際礦石的浮選提供指導(dǎo)。論文采用GY浮選鎢礦工藝,采用鹽酸、氫氧化鈉調(diào)節(jié)礦漿pH值,硝酸鉛為活化劑,水玻璃為抑制劑,捕收劑為GYB和TA-3按體積分?jǐn)?shù)為5:1配比的組合捕收劑,進(jìn)行單礦物浮選試驗(yàn),在此基礎(chǔ)上,研究Cu~(2+),Fe~(3+),Zn~(2+)中任意一種或兩種金屬離子對(duì)黑鎢礦浮選行為的影響,并通過(guò)吸附量測(cè)定、溶液化學(xué)計(jì)算、動(dòng)電位測(cè)試、紅外光譜掃描的方法深入探討金屬離子對(duì)黑鎢礦浮選的作用機(jī)理。當(dāng)?shù)V漿 pH=6.8 時(shí),Cu~(2+),Fe~(3+),Zn~(2+)在礦漿中的主要以 Cu~(2+)、Cu(OH)_2(s)、Fe(OH)_3(s)以及Zn~(2+)的形式吸附在礦物表面,促使藥劑吸附量改變、表面電位正移以及紅外光譜的特征峰偏移。礦漿中添加單一金屬離子濃度在0～1× 10~(-3)mol/L范圍內(nèi)時(shí),當(dāng)Cu~(2+)濃度在0～6×10~(-5)mol/L范圍內(nèi)時(shí),Cu~(2+)能夠活化黑鎢礦的浮選,且隨著Cu~(2+)濃度的提高,其對(duì)黑鎢礦浮選的活化能力先增強(qiáng)后減弱;當(dāng)添加的Cu~(2+)超過(guò)該濃度時(shí),Cu(OH)_2(s)吸附在黑鎢礦表面干擾了 Pb~(2+)對(duì)黑鎢礦的活化作用,Cu~(2+)開(kāi)始對(duì)黑鎢礦的浮選有抑制作用;Fe(OH)_3(s)吸附在黑鎢礦表面干擾了 Pb~(2+)對(duì)黑鎢礦的活化作用,Fe~(3+)在整個(gè)濃度范圍內(nèi)都對(duì)黑鎢礦的浮選都有較強(qiáng)的抑制作用;Zn~(2+)對(duì)黑鎢礦的浮選沒(méi)有明顯的影響。礦漿中添加兩種金屬離子濃度在0～1 × 10~(-3)mol/L范圍內(nèi)時(shí),同時(shí)添加Cu~(2+)+Zn~(2+)和Fe~(3+)+Zn~(2+)與分別單獨(dú)添加Cu~(2+),Fe~(3+)時(shí)相比,黑鎢礦的浮選行為基本一致,Zn~(2+)不會(huì)干擾Cu~(2+),Fe~(3+)對(duì)黑鎢礦浮選行為的影響。Cu~(2+)+Fe~(3+)比Cu~(2+)+Zn~(2+)和Fe~(3+)+Zn~(2+)對(duì)黑鎢礦浮選的抑制作用更強(qiáng),且Cu~(2+)+Fe~(3+)在濃度低于6× 10~(-5)mol/L時(shí),Fe(OH)_3(s)吸附在礦物表面抑制了 Cu~(2+)對(duì)浮選黑鎢礦的活化作用,當(dāng)Cu~(2+)+Fe~(3+)在濃度超過(guò)6× 10~(-5)mol/L時(shí),Cu(OH)_2(s)和Fe(OH)_3(s)在黑鎢礦表面形成競(jìng)爭(zhēng)吸附,進(jìn)一步惡化了黑鎢礦的浮選環(huán)境。
[Abstract]:The development and utilization of tungsten resources in China is mainly wolframite. At present, tungsten concentrate in China is mainly supplied by wolframite. Due to long-term overload mining, high grade and easy to be recovered by gravity separation, coarse wolframite resources are exhausted day by day. Flotation treatment of fine wolframite has become the most important method to recover this kind of ore. The associated components of wolframite slime are complex, and a large number of metal ions in flotation slurry are important factors affecting the flotation of wolframite. The purpose of this paper is to provide guidance for the flotation of wolframite by studying the action mechanism of metal ions in the flotation of wolframite single minerals. In this paper, GY flotation process was used to adjust pH value of slurry by hydrochloric acid and sodium hydroxide, lead nitrate as activator, sodium silicate as inhibitor, collector as combined collector with GYB and TA-3 at 5:1 by volume fraction, and the flotation test of single mineral was carried out. On this basis, the effects of any one or two metal ions in Cu~(2 on the flotation behavior of wolframite were studied, and the adsorption capacity, solution chemistry calculation and potentiodynamic measurement were used to study the effect of any one or two metal ions on the flotation behavior of wolframite. The mechanism of metal ions acting on wolframite flotation is discussed by infrared scanning. When the pulp is pH=6.8, the mineral surface is mainly adsorbed on the mineral surface in the form of Cu~(2 and Zn~(2). The surface potential is shifted positively and the characteristic peak of infrared spectrum is shifted. The flotation of wolframite can be activated when the concentration of single metal ion is 0 ~ 1 脳 10~(-3)mol/L and the concentration of Cu~(2 is in the range of 0 ~ 6 脳 10~(-5)mol/L. The activation ability of wolframite floatation first increases and then weakens with the increase of Cu~(2 concentration. When the addition of Cu~(2 is above this concentration, the adsorption of Cu~(2 on the surface of wolframite interferes with the activation of wolframite. The activation of wolframite is inhibited by the addition of Cu~(2) and the adsorption on the surface of wolframite interferes with the adsorption of Pb~(2 on the surface of wolframite. In the whole concentration range, there is a strong inhibitory effect on the flotation of wolframite. There is no obvious effect on the flotation of wolframite. When the concentration of two kinds of metal ions is in the range of 0 ~ 1 脳 10~(-3)mol/L, the addition of Cu~(2) Zn~(2) and Fe~(3) Zn~(2) in the slurry is compared with the addition of Cu~(2 ~ (+) ~ (2 +) ~ (3), respectively, when the concentration of two metal ions is in the range of 0 ~ 1 脳 10~(-3)mol/L. The flotation behavior of wolframite is almost the same as that of Cu~(2) Zn~(2) and Fe~(3) Zn~(2). The effect of the flotation behavior of wolframite on the flotation behavior of wolframite is stronger than that of Cu~(2) Zn~(2) and Fe~(3) Zn~(2). The activation of wolframite was inhibited by the adsorption of Cu~(2 on the mineral surface when the concentration of Cu~(2) Fe~(3 was lower than 6 脳 10~(-5)mol/L. When the concentration of Cu~(2) Fe~(3 was higher than 6 脳 10~(-5)mol/L, the activation of wolframite was inhibited. When the concentration of Cu~(2) Fe~(3 was above 6 脳 10~(-5)mol/L, it formed competitive adsorption on the surface of wolframite. The flotation environment of wolframite is further deteriorated.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TD923;TD954

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳冬冬;肖駿;鄧春虎;陳代雄;董艷紅;;磁-重-浮聯(lián)合工藝分選某黑白鎢礦的試驗(yàn)研究[J];中國(guó)鎢業(yè);2015年03期

2 張洪川;高輝;王建國(guó);盧杰;;全球鎢資源供需格局分析及對(duì)策建議[J];中國(guó)礦業(yè);2015年S1期

3 王明燕;賈木欣;肖儀武;孫傳堯;李艷峰;金建文;;中國(guó)鎢礦資源現(xiàn)狀及可持續(xù)發(fā)展對(duì)策[J];有色金屬工程;2014年02期

4 鐘傳剛;高玉德;邱顯揚(yáng);馮其明;;金屬離子對(duì)苯甲羥肟酸浮選黑鎢礦的影響[J];中國(guó)鎢業(yè);2013年02期

5 高玉德;邱顯揚(yáng);鐘傳剛;馮其明;;羥肟酸類捕收劑性質(zhì)及浮選鎢礦物特性[J];中國(guó)鎢業(yè);2012年02期

6 羅仙平;路永森;張建超;錢有軍;沈遠(yuǎn)海;梁長(zhǎng)利;;黑鎢礦選礦工藝進(jìn)展[J];金屬礦山;2011年12期

7 張春明;;中國(guó)鎢礦資源節(jié)約與綜合利用的思考[J];中國(guó)鎢業(yè);2011年02期

8 宋振國(guó);孫傳堯;王中明;程新朝;茹青;;中國(guó)鎢礦選礦工藝現(xiàn)狀及展望[J];礦冶;2011年01期

9 魯軍;;黑鎢細(xì)泥選礦工藝研究現(xiàn)狀及展望[J];現(xiàn)代礦業(yè);2011年02期

10 王星;;鎢礦選礦工藝研究進(jìn)展評(píng)述[J];工程設(shè)計(jì)與研究;2010年02期

相關(guān)碩士學(xué)位論文 前3條

1 齊美超;黑鎢礦表面特性與可浮性關(guān)系的研究[D];江西理工大學(xué);2014年

2 鐘傳剛;黑鎢礦浮選體系中金屬離子的作用機(jī)理研究[D];中南大學(xué);2013年

3 楊應(yīng)林;黑白鎢共生礦混合浮選藥劑及其作用機(jī)理研究[D];中南大學(xué);2012年

，

本文編號(hào)：1791889