Lead recovery from scrap cathode ray tube funnel glass by hydrothermal sulphidisation

2015 ◽  
Vol 33 (10) ◽  
pp. 930-936 ◽  
Author(s):  
Wenyi Yuan ◽  
Wen Meng ◽  
Jinhui Li ◽  
Chenglong Zhang ◽  
Qingbin Song ◽  
...  
Keyword(s):  
Lead Recovery ◽  
Cathode Ray Tube

scholarly journals Chemical–Electrochemical Process Concept for Lead Recovery from Waste Cathode Ray Tube Glass

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1546
Author(s):  
Árpád Imre-Lucaci ◽  
Melinda Fogarasi ◽  
Florica Imre-Lucaci ◽  
Szabolcs Fogarasi
Keyword(s):  
Flow Rate ◽  
Current Density ◽  
Complete Recovery ◽  
Electrochemical Process ◽  
Operating Conditions ◽  
General Effect ◽  
Optimal Operating ◽  
Recirculation Flow ◽  
Lead Recovery ◽  
Cathode Ray Tube

This paper presents a novel approach for the recovery of lead from waste cathode-ray tube (CRT) glass by applying a combined chemical-electrochemical process which allows the simultaneous recovery of Pb from waste CRT glass and electrochemical regeneration of the leaching agent. The optimal operating conditions were identified based on the influence of leaching agent concentration, recirculation flow rate and current density on the main technical performance indicators. The experimental results demonstrate that the process is the most efficient at 0.6 M acetic acid concentration, flow rate of 45 mL/min and current density of 4 mA/cm2. The mass balance data corresponding to the recycling of 10 kg/h waste CRT glass in the identified optimal operating conditions was used for the environmental assessment of the process. The General Effect Indices (GEIs), obtained through the Biwer Heinzle method for the input and output streams of the process, indicate that the developed recovery process not only achieve a complete recovery of lead but it is eco-friendly as well.

Lead recovery from cathode ray tube funnel glass with mechanical activation

2012 ◽  
Vol 63 (1) ◽  
pp. 2-10 ◽  
Author(s):  
Wenyi Yuan ◽  
Jinhui Li ◽  
Qiwu Zhang ◽  
Fumio Saito ◽  
Bo Yang
Keyword(s):  
Mechanical Activation ◽  
Lead Recovery ◽  
Cathode Ray Tube

scholarly journals Lead Recovery from Solid Residues of Copper Industry Using Triethylenetetramine Solution

Minerals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 546
Author(s):  
Mateusz Ciszewski ◽  
Andrzej Chmielarz ◽  
Zbigniew Szołomicki ◽  
Michał Drzazga ◽  
Katarzyna Leszczyńska-Sejda
Keyword(s):  
Lead Extraction ◽  
Pressure Leaching ◽  
Base Metals ◽  
Lead Carbonate ◽  
Pure Lead ◽  
Industrial Processing ◽  
High Temperature And Pressure ◽  
Lead Recovery ◽  
Temperature And Pressure ◽  
Increasing Temperature

Industrial processing of mineral ores and concentrates generates large amounts of solid residues, which can be landfilled or further processed to recover selected elements depending on its economical profitability. Pressure leaching is a technology enabling high recovery of base metals like copper and zinc, transferring others like lead and iron to the solid residue. High temperature and pressure of such leaching leads to formation of sparingly soluble lead jarosite (plumbojarosite). The load of lead landfilled as solid residues resulting from such operation is so big that its recovery is perspective and crucial for waste-limiting technologies. This paper is devoted to lead extraction from pressure leaching residues using triethylenetetramine solution and then its precipitation as a commercial lead carbonate. The highest obtained recovery of lead was 91.3%. Additionally, presented technology allows to manage and recycle amine solution and reuse solid products. Produced pure lead carbonate can be directly added to smelting, not increasing temperature within the furnace.

Magnetic Experiments with a Cathode Ray Tube

1967 ◽  
Vol 5 (4) ◽  
pp. 153-155
Author(s):  
J. G. Shepherd
Keyword(s):  
Cathode Ray Tube

Visibility on Cathode-Ray Tube Screens: Screen Brightness

1948 ◽  
Vol 25 (2) ◽  
pp. 455-466 ◽  
Author(s):  
S. B. Williams ◽  
N. R. Bartlett ◽  
E. King
Keyword(s):  
Cathode Ray Tube
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