Szczegóły publikacji
Opis bibliograficzny
Recovery of indium from LCD displays / Andrea Miškufová, Patrícia Krištofová, Ewa RUDNIK // World of Metallurgy, Erzmetall : Internationale Fachzeitschrift für Metallurgie ; ISSN 1613-2394. — Tytuł poprz.: Erzmetall. — 2018 — vol. 71 no. 1, s. 31–36. — Bibliogr. s. 35–36
Autorzy (3)
- Miškufová Andrea
- Krištofová Patrícia
- AGHRudnik Ewa
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 114011 |
|---|---|
| Data dodania do BaDAP | 2018-06-04 |
| Rok publikacji | 2018 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | World of Metallurgy, Erzmetall : Internationale Fachzeitschrift für Metallurgie |
Abstract
LCD displays are the most widespread imaging technology at present. Their recycling becomes important due to containing rare indium. For experimental study displays after the manual dismantling of ten monitors (two monitors with LED backlighting) were used. After removal of polarizing foils, the granularity of the sample (<0.71 mm) was adjusted by milling in the vibration mill and sieving. Subsequently, the hydrometallurgical treatment was realized by application of acid non-oxidative, oxidative leaching and solvent extraction (SX). Optimal leaching conditions were: 1 M H2SO4 (400 ml), 100 g of sample, 80 °C, 2 hours, 850 rpm with 10 ml H2O2 (30 %).The most suitable conditions for SX were set up: 10 % D2EHPA + kerosene, A: O = 5:1 and for stripping process: 4 M HC1 at the ratio O: A = 5:1. By use of SX a relatively high efficiencies were achieved (92 % for LCD-LED and 84 % for LCD), but the stripping process was less efficient for leachates without H2O2 (45 % and 50 %). Practically, stripping did not succeed in obtaining of In from both leaching liquors (LCD and LCD-LED) containing H2O2.The experiment confirmed the possibility of mutual processing LCD and LCD-LED displays, however in this case As should be monitored. © 2018 GDMB Gesellschaft fur Bergbau, Metallurgie, Rohstoff- und Umwelttechnik e.V. All rights reserved.