Kumar, Vinod and Lee, Jae-chun and Jeong, Jinki and Jha, Manis K and Kim, Byung-Su and Singh, Ratnakar (2013) Novel physical separation process for eco-friendly recycling of rare and valuable metals from end-of-life DVD-PCBs. Separation and Purification Technology, 111 (IF-2.921). pp. 145-154.
|PDF - Published Version |
Restricted to NML users only. Others may use ->
Present paper reports a simple and eco-friendly physical separation process for the recycling of metallic values from PCBs.The separation of material is based on distribution of metallic and non-metallic constituents in different size fractions depending on their liberation size due to their malleable or ductile nature. The studies showed the enrichment of metals in coarser particles (1000 + 150 lm) and non- metals in the fine particles 150 lm following pneumatic separation and froth flotation process.A grade of 88% with 75%recovery was achieved by froth flotation,but lower grade of 75% with 65% recovery were obtained by pneumatic separation with 1500 lm powder.Overall grade of metals was achieved up to 88% by controlling the feed and air flow rates during pneumatic separation.Using this beneficiation technique, the concentration of rare metals in the different fractions varying from 1.88%to 4.18%was enriched up to 9%.
|Uncontrolled Keywords:||DVD, PCBs, Pneumatic separation,Froth flotation and metal recovery|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||INVALID USER|
|Deposited On:||23 Apr 2013 11:50|
|Last Modified:||23 Apr 2013 12:22|
Repository Staff Only: item control page