Recovery of red (Y2O3:Eu3+), Blue(Sr,Ca,Ba)10(PO4)6 Cl2:Eu2+ and green(LaPO4:Tb3+,Ce3+) rare earth phosphors from waste phosphor sludge by liquid/liquid extraction

机译：通过液/液萃取从废荧光粉污泥中回收红色（Y2O3：Eu3 +），蓝色（Sr，Ca，Ba）10（PO4）6 Cl2：Eu2 +和绿色（LaPO4：Tb3 +，Ce3 +）稀土荧光粉

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A new method for recovery of red (Y2O3:Eu3+), blue (Sr,Ca,Ba)10(PO4)6Cl2:Eu2+ and green (LaPO4:Tb3+,Ce3+) rare earth phosphors from waste phosphor sludge by liquid/liquid extraction is proposed in this paper. At first, the recommended pretreatment process is effective to remove the adhesive binder such as Al2O3 and the other impurities from the spent florescent powder complex, which including treatment by nitric acid solution of pH 2 for 1-5 minutes, by sodium hydroxide solution of pH 12.5 for 12minutes and rinsing by 99.5% ethanol and distilled water. The subsequent separation for dried florescent powder was carried out in the heptane/ DMF (N, N-Dimethylformamide) system in presence of DAA (laurylamine) surfactant. Through two steps extraction process with different DAA concentration. Satisfactory separation results have been achieved; the grade and recovery of recovered red, blue and green product reach 86.0% and 80.3%, 74.8% and 95.6%, 81.2% and 79.5%, respectively. This invention provides a new possibility for the recycling of valuable rare earth phosphor from spent fluorescent lamps in the future.

机译：通过液/液萃取从废荧光粉污泥中回收红色（Y2O3：Eu3 +），蓝色（Sr，Ca，Ba）10（PO4）6Cl2：Eu2 +和绿色（LaPO4：Tb3 +，Ce3 +）稀土荧光粉的新方法是本文提出。首先，推荐的预处理方法可以有效地从用过的荧光粉废料中去除粘附剂，例如Al2O3和其他杂质，包括用pH 2的硝酸溶液处理1-5分钟，用pH值的氢氧化钠溶液处理。 12.5分钟，用99.5％的乙醇和蒸馏水冲洗。干燥的荧光粉的后续分离在庚烷/ DMF（N，N-二甲基甲酰胺）系统中，在DAA（月桂胺）表面活性剂存在下进行。通过两步提取过程可以得到不同浓度的DAA。分离效果令人满意；回收的红色，蓝色和绿色产品的品位和回收率分别达到86.0％和80.3％，74.8％和95.6％，81.2％和79.5％。本发明为将来从废荧光灯中回收有价值的稀土磷光体提供了新的可能性。

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《The 2nd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2008)(第二届生物信息与生物医学工程国际会议）论文集》|2008年|4674-4679|共6页
会议地点 Shanghai(CN)
作者
Mei,Guangjun; Xie, Kefeng;
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School of resource and environmental engineering Wuhan University of technology Wuhan China;

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Rare earth phosphor; Separation; Recovery; Liquid/liquid extraction;

机译：稀土磷光体；分离；复苏;液/液萃取;

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专利

1. Separation of Red （Y2O3： Eu3＋）, Blue （Sr, Ca, Ba）10（PO4）6Cl2： Eu2＋ and Green （LAPO4： Tb3＋, Ce3＋） Rare Earth Phosphors by Liquid/Liquid Extraction [J] . MEI Guangjun, RAO Peng, MITSUAKI Matsuda, 武汉理工大学学报：材料科学英文版 . 2009,第003期

机译：液/液萃取分离红色（Y2O3：Eu3 ＋），蓝色（Sr，Ca，Ba）10（PO4）6Cl2：Eu2 ＋和绿色（LAPO4：Tb3 ＋，Ce3 ＋）
2. Separation of Red （Y2O3：Eu3＋）, Blue （BaMgAl10O17：Eu2＋） and Green （CeMgAl10O17-Tb3） Rare Earth Phosphors by Liquid/Liquid Extraction [J] . MEI Guangjun, RAO Peng, Mitsuaki Matsuda, 武汉理工大学学报：材料科学英文版 . 2009,第004期

机译：液/液萃取分离红色（Y2O3：Eu3 ＋），蓝色（BaMgAl10O17：Eu2 ＋）和绿色（CeMgAl10O17-Tb3）稀土荧光粉
3. Recovery of rare earths from the green lamp phosphor LaPO4:Ce3+, Tb3+ (LAP) by dissolution in concentrated methanesulphonic acid [J] . Gijsemans Lukas, Forte Federica, Onghena Bieke, RSC Advances . 2018,第46期

机译：通过浓缩甲烷磺酸溶解来回收来自绿灯磷光体LAPO4：Ce3 +，TB3 +（圈）的稀土
4. Recovery of red (Y{sub}2O{sub}3:Eu{sup}(3+)), Blue (Sr,Ca,Ba){sub}10(PO{sub}4){sub}6 Cl{sub}2:Eu{sup}(2+) and green (LaPO{sub}4:Tb{sup}(3+),Ce{sup}(3+)) rare earth phosphors from waste phosphor sludge by liquid/liquid extraction [C] . Mei Guangjun, Xie Kefeng International Conference on Bioinformatics and Biomedical Engineering . 2008

机译：恢复红色（y {sub} 2o {sub} 3：eu {sup}（3+）），蓝色（sr，ca，ba）{sub} 10（po {sub} 4）{sub} 6 cl {sub 2：欧盟{sup}（2+）和绿色（Lapo {sub} 4：tb {sup}（3 +），ce {sup}（3+））通过液/液萃取来自废磷光体污泥的稀土磷光体
5. Blue-green tunable color of Ce3+/Tb3+ coactivated NaBa3La3Si6O20 phosphor via energy transfer [O] . Zhen Jia, Mingjun Xia -1

机译：Ce3 + / Tb3 +共活化的NaBa3La3Si6O20荧光粉的蓝绿色可调谐色
6. Recovery of rare earths from the green lamp phosphor LaPO4:Ce3+,Tb3+ (LAP) by dissolution in concentrated methanesulphonic acid [O] . Lukas Gijsemans, Federica Forte, Bieke Onghena, 2018

机译：通过浓缩甲烷磺酸溶解来回收来自绿灯磷光体LAPO4：Ce3 +，TB3 +（圈）的稀土

Recovery of red (Y2O3:Eu3+), Blue(Sr,Ca,Ba)10(PO4)6 Cl2:Eu2+ and green(LaPO4:Tb3+,Ce3+) rare earth phosphors from waste phosphor sludge by liquid/liquid extraction

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