Este archivo ha sido creado el 24-07-2024 Nieves Iglesias-González
 

GENERAL INFORMATION
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1. Dataset title:
	Experimental dataset of a high productivity bioprocess for obtaining metallic copper from printed circuit boards


2. Authorship:
	  
	Name:Iglesias-González, Nieves;  
	Institution: Universidad de Sevilla
	Email:mnieves@us.es
	ORCID: 0000-0003-0708-8167
	Name: Dorado, Antonio D.
	Institution:Universitat Politècnica de Catalunya
	Email:toni.dorado@upc.edu
	ORCID:0000-0003-0238-5867
	Name: Ramírez, Pablo; 
	Institution:Universidad de Sevilla
	Email:pramirez@us.es
	ORCID: 0000-0002-5869-2199
	Name: Mazuelos, Alfonso 
	Institution:Universidad de Sevilla
	Email:mazuelos@us.es
	ORCID: 0000-0002-9480-9702

DESCRIPTION
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1. Dataset language: English

2. Abstract: 
Here, experimental data for the different stages of a bioprocess for obtaining copper from printed circuit boards are compiled. 
Chemical analysis data to determine the chemical composition of samples and residues.
Conditions and results of batch and continuous leaching, solvent extraction, biooxidation and electrowinning tests are included.

3. Keywords: PCB, ferric leaching, solvent extraction, Electrowinning, bio-oxidation

4. Date of data collection:10-01-2022

5. Publication Date: 25-07-2024

6. Grant information:
	Grant Agency: Ministerio de Ciencia e Innovación (MICIN). España
	Grant Number: PID2020-117520RA-I00


ACCESS INFORMATION
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1. Creative Commons License of the dataset: CC-BY

2. Dataset DOI: https://doi.org/10.12795/11441/161670

3. Related publication:
Nieves Iglesias-González, Antonio D. Dorado, Pablo Ramírez, Alfonso Mazuelos. A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs) Minerals Engineering 205 (2024) 108459
https://doi.org/10.1016/j.mineng.2023.108459
https://hdl.handle.net/11441/150255




METHODOLOGICAL INFORMATION
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1. Description of the methods used to collect and generate the data:
Nieves Iglesias-González, Antonio D. Dorado, Pablo Ramírez, Alfonso Mazuelos. A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs) Minerals Engineering 205 (2024) 108459
https://doi.org/10.1016/j.mineng.2023.108459
https://hdl.handle.net/11441/150255

2. Data processing methods:
The methodology used to obtain the experimental data stage by stage is described below.
Composition:
Sample: crushed end-of-life mobile phones without casing and battery
Size particle:  2 to 7 mm 
Subsampling: by a rotatory cone sample divider (Laborette 27, Fritsch) 
Digestion: aqua regia
Analysis: atomic absorption spectrophotometry (AAS, PinAAcle 500, Perkin Elmer) 
Batch Leaching (Batch): 
1L-stirred tank reactor with a four-blade impeller at 800 rpm  (IKA RW20). temperature constant at 60 ◦C (DIGITERM S-150). Solid/Liquid ratio 1 %, 
37 g/L biogenic Fe(+3) leaching solution at pH 1.0
Time 24 h 
Samples analyses: copper (AAS PinAAcle 500, Perkin Elmer)) and Fe(II) (automatic titration with K2Cr2O7).
Continuous Leaching (CSTR):
Feed: biogenic ferric solution by a peristaltic pump, solid by a vibratory feeder (LABORETTE 24, Fritsch).
Bio-oxidation:
Flooded packed bed bioreactor inoculated with Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans, 31°C.
Liquid flow rate 100 mL/h 
Air flow rate 750 mL/min
Working volume 0.55 L
Solvent extraction (SX):
15 % (v/v) LIX 973NS-LV in kerosene (OP). 
Extraction isotherm determined at 20 ◦C. 
Extraction: solution from bioreactor (AP) 6.8 g/L Cu, 38.8 g/L Fe (+3), pH = 1.1 
2 min in a 250 mL-separation funnel
Stripping isotherm determined at 20°C, 5 mL loaded OP and 2.5 mL of 200 g/L H2SO4  (AP)
Stripping test: Loaded OP and 10 g/L of Cu and 200 g/L of H2SO4 (AP).
Cu and Fe analyzed by AAS in AP before and after extraction and stripping.
Electrowinning (EW):
15 g/L Cu and 155 g/L H2SO4 
Electrowinning unit: cuboidal Teflon tank of 200 mL 
Electrodes: polished 316 L stainless steel 2 cm × 4.1 cm, interelectrode space 2.5 cm
DC source FAC-622 Promax. 
Current density of 350 A/m2, average electrical potential 2 V. 
Cu(2+) analysis by AAS. deposited Cu analyzed by SEM 
H2SO4 determined by acid-base titration 1 M NaOH-standardized 



FILE OVERVIEW 
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1. File list:

	File name: Data.xlsx
	Description:    A Microsoft Excel file with 6 sheets called: Composition, Batch, CSTR, Bio-oxidation, SX and EW.