预处理对废弃CRT荧光粉中稀土提取的影响

doi:10.3969/j.issn.0438-1157.2014.04.036

化工学报 ›› 2014, Vol. 65 ›› Issue (4): 1416-1423.DOI: 10.3969/j.issn.0438-1157.2014.04.036

预处理对废弃CRT荧光粉中稀土提取的影响

王莲贞, 申星梅, 李辽沙

安徽工业大学教育部冶金减排与资源综合利用重点实验室, 安徽马鞍山 243002

收稿日期:2013-08-07 修回日期:2013-09-24 出版日期:2014-04-05 发布日期:2013-10-21
通讯作者: 申星梅
作者简介:王莲贞（1989—），女，硕士研究生。
基金资助:
安徽省自然科学基金项目（1208085QB30）；安徽省高等学校省级自然科学研究项目（KJ2012A041）。

Effect of pretreatment on extraction rate of rare earth from waste CRT phosphors

WANG Lianzhen, SHEN Xingmei, LI Liaosha

Key Laboratory of Metallurgical Emission Reduction & Resources Recycling of Ministry of Education, Anhui University of Technology, Ma'anshan 243002, Anhui, China

Received:2013-08-07 Revised:2013-09-24 Online:2014-04-05 Published:2013-10-21
Supported by:
supported by the Natural Science Foundation of Anhui Province (1208085QB30) and the University Science Research Project of Anhui Province (KJ2012A041).

摘要/Abstract

摘要： 采用稀盐酸预处理工艺，对预处理前后废弃CRT荧光粉中稀土的提取效果进行了比较研究。结果表明，预处理工艺的最佳条件为：盐酸浓度为0.8 mol·L^-1，反应温度为65℃，反应时间为2 h。与未预处理样品相比，预处理样品酸解后得到的浸出液中稀土的浸出率由21.18%提高到60.17%，而杂质的浸出率由45.21%减少到10.43%。经沉淀、煅烧后所得稀土产物为Y₂O₃和Eu₂O₃，总含量为98.20%。其中，Y₂O₃含量为90.25%。稀土产物主要为立方晶型的Y₂O₃，由片状晶体密集堆积而成，片晶之间紧密结合，形成密实的方体结构。稀酸预处理工艺不仅能显著提高废弃CRT荧光粉中稀土提取的效率，实现稀土资源的高效、可持续利用，而且可以减少化学试剂的消耗，为废弃电子产品的综合利用提供研究基础与技术支撑。

关键词: 废弃CRT荧光粉, 预处理, 稀土, 浸取, 优化, 回收

Abstract: A comparison study for extraction of rare earths from waste Cathode Ray Tube (CRT) phosphors was carried out before and after dilute acid pretreatment process. The results show that the optimum conditions for the pretreatment process are as follows: hydrochloric acid concentration 0.8 mol·L^-1, reaction temperature 65℃, and leaching time 2 h. Compared with the untreated sample, extraction rate of rare earths for pretreated sample increases from 21.18% to 60.17%, whereas for impurities the rate decreases from 45.21% to 10.43%. The rare earth products obtained after precipitation and sintering are mainly Y₂O₃ and Eu₂O₃, total content of rare earth oxides 98.20% among them Y₂O₃ 90.25%, which are of cubic crystal, and close integration of lamella crystals to form a compact structure. The dilute acid pretreatment process can not only improve the efficiency of rare earth extraction and achieve sustainable and efficient utilization of rare earth resources, but also reduce the consumption of reagent and provide research foundation and technical support for comprehensive utilization of waste electronic products.

Key words: waste CRT phosphors, pretreatment, rare earth, leaching, optimization, recovery

中图分类号:

TQ09

王莲贞, 申星梅, 李辽沙. 预处理对废弃CRT荧光粉中稀土提取的影响[J]. 化工学报, 2014, 65(4): 1416-1423.

WANG Lianzhen, SHEN Xingmei, LI Liaosha. Effect of pretreatment on extraction rate of rare earth from waste CRT phosphors[J]. CIESC Journal, 2014, 65(4): 1416-1423.

参考文献

[1] Zhang Jing(张静). The feasibility study on the leaching characteristics and resource utilization of waste CRT glass shell[D]. Nanjing:Nanjing Forestry University, 2009
[2] Liu Hong(刘虹), Ruan Haifeng(阮海峰), Wang Yonggang(王永刚), et al. Analysis and countermeasures of pollution situation in China’s lighting industry[J]. Macroeconomics (宏观经济研究), 2006(1) : 21-24
[3] Wang Tao(王涛). Recycle and treatment of fluorescent lamp[J]. China Environmental Protection Industry(中国环保产业), 2005(3) : 26-28
[4] Touru Takahashi, et al. Separation and recovery of rare earth elements from phosphor sludge in processing plant of waste fluorescent lamp by pneumatic classification and sulfuric acidic leaching[J]. Shigen-to-Sozai.Jpn., 2001, 117: 579-585
[5] Herman R Heytmeijer. Recovery of yttrium and europium from contaminated solutions[P]: US, 4432948. 1984-02-21
[6] Hirajima T, Sasaki K, Bissombolo A, et al. Feasibility of an efficient recovery of rare earth-activated phosphors from waste fluorescent lamps through dense-medium centrifugation [J]. Separation and Purification Technology, 2005, 44(3): 197-204
[7] Touru Takahashi, Aketomi Takano, Takayuki Saiton, Nobuhiro Nagano, Shinji Hirai, Kazuyoshi Shimakage. Synthesis of red phosphor (Y₂O₃: Eu³⁺) from waste phosphor sludge by co- precipitation process [J]. Journal of the Mining and Materials Processing Institute of Japan, 2002, 118: 413-418
[8] Akira Otsuki. Solid-solid separation of fluorescent powders by liquid-liquid extraction using aqueous and organic phases[J]. Resources Processing, 2006, 53:121-133
[9] Ryosuke Shimizu, Kayo Sawada, Youichi Enokida, Ichiro Yamamoto. Supercritical fluid extraction of rare earth elements from luminescent material in waste fluorescent lamps [J]. The Journal of Supercritical Fluids, 2005, 33(3):235-241
[10] Fan Yang, Fukiko Kubota, Yuzo Baba, et al. Selective extraction and recovery of rare earth metals from phosphor powders in waste fluorescent lamps using an ionic liquid system[J]. Journal of Hazardous Materials, 2013, 254:79-88
[11] Long Min(龙敏), Yu Dengmin(余登敏), Zhao Yueping(赵跃萍). Spectrophotometric determination of rare earth cerium in steel[J]. Metallurgical Standardization & Quality(冶金标准化与质量), 2007, 45(6): 17-18
[12] Li Hongmei(李洪枚). Recovery of rare earths from phosphor sludge by acid leaching[J]. Chinese Journal of Rare Metals(稀有金属), 2010, 34(6): 900
[13] Shao Yanhai(邵延海), Feng Qiming(冯其明), Ou Leming(欧乐明), Zhang Guofan(张国范), Lu Yiping(卢毅屏). Comprehensive recovery of vanadium and molybdenum from ammonia leaching residue of spent catalyst[J]. Chinese Journal of Rare Metals(稀有金属), 2009, 33(4): 606
[14] Feng Xingliang(冯兴亮), Huang Xiaowei(黄小卫), et al. Metallurgical processing of celestite-associated rare earth ore[J]. Journal of the Chinese Society of Rare Earths(中国稀土学报), 2012, 30(1): 117
[15] Huang Lihuang(黄礼煌). Extraction Technology for Rare Earth(稀土提取技术)[M]. Beijing: Metallurgical Industry Press, 2006: 241-258
[16] Zhang Chang(张嫦). Research on processing technology of the ion of heavy metal in industrial wastewater[J]. Environmental Pollution and Control(环境污染与防治), 2003, 25(6): 348-350
[17] Liu Shufen(刘淑芬). Synthesis and adsorption properties of novel polimine-type chelating resins[J]. Journal of Shangqiu Normal University(商丘师范学院学报), 2004, 20(5): 101-104
[18] Zou Zhihong(邹志红), Yan Wei(严伟), et al. Synthesis of sodium N,N-bis(2-benzimidazolylmethylene) dithiocarbamate [J]. Advances in Fine Petrochemicals(精细石油化工进展), 2001, 2(12): 4-6
[19] Ge Jijiang(葛际江), Zhang Guicai(张贵才), Song Zhaozheng(宋昭峥), et al. Mechanism of dithiocarbamates removing oil from waste water of oil field[J]. Acta Petrolei Sinica(石油学报), 2002, 18(5): 1-8
[20] O'Connell D W, Birkinshaw C, O'Dwyer T F. A chelating cellulose adsorbent for the removal of Cu(Ⅱ) from aqueous solutions[J]. Journal of Applied Ploymer Science, 2005:7
[21] Li Hongmei(李洪枚). Recovery of rare earths from phosphor sludge by acid leaching[J]. Chinese Journal of Rare Metals(稀有金属), 2010, 34(6): 902
[22] Qiu Tingsheng(邱廷省), Fang Xihui(方夕辉), Luo Xianping(罗仙平), et al. Intensification effect by magnetic field on rare earth deposition with oxalic acid[J]. Chinese Journal of Rare Metals(稀有金属), 2004, 28(4): 811-814

预处理对废弃CRT荧光粉中稀土提取的影响

Effect of pretreatment on extraction rate of rare earth from waste CRT phosphors

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