Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Indium Recovery from End-of-Life E-Waste: Important Details Related to Spectroanalytical Determination and Recycling Viability

Full text
Author(s):
Jeyne Pricylla Castro [1] ; José Augusto Garcia [2] ; Ricardo G. Souza [3] ; Edenir R. Pereira Filho [4]
Total Authors: 4
Affiliation:
[1] SG Soluções Científica - Brasil
[2] SG Soluções Científica - Brasil
[3] Universidade Estadual Paulista (Unesp). Instituto de Ciência e Tecnologia - Brasil
[4] Universidade Federal de São Carlos (UFSCar). Departamento de Química. Grupo de Análise Instrumental Aplicada - Brasil
Total Affiliations: 4
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 35, n. 6 2024-02-26.
Abstract

Recycling has experienced great interest over the past five years, primarily driven by its strategic economic significance and the growing scarcity of natural resources. One element that has garnered attention is indium (In), especially due to its presence in flat panel displays (FPDs), particularly in devices utilizing liquid crystal display (LCD). The goal of this research was to establish a method for extracting In from LCD. The study faced challenges related to In determination using inductively coupled plasma optical emission spectroscopy (ICP OES), and furthermore, it proposed an optimized extraction method through design of experiments (DoE), focusing on extraction time and percentage of solid variables. Diverse sample types encompassing smartphones, monitors, and television screens were processed. Leaching was conducted utilizing a magnetic plate at 80 °C, employing a 1 mol L-1 H2SO4 solution along with 25% m v-1 of the sample. This proposed method achieved a near-complete extraction rate (100%) for In. Moreover, in-depth interviews were conducted with several stakeholders in urban mining and various sectors within Brazil. The insights gleaned from these interviews showed the absence of a consolidated market for recycling LCDs with a specific emphasis on In recovery. (AU)

FAPESP's process: 20/05424-7 - Indium element recovery from technological waste: information prospection and economic viability
Grantee:Jeyne Pricylla Castro Castilho
Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
FAPESP's process: 21/10173-6 - Indium element recovery from technological waste: information prospection and economic viability
Grantee:Jeyne Pricylla Castro Castilho
Support Opportunities: Scholarships in Brazil - Innovative Research in Small Business - PIPE