Metal Recovery from Circuit Board Scrap Christian Hagelüken Umicore Precious Metals Refining IAER 2004 Summit Phoenix/Scottdale May 13, 2004 WEEE: Sexy? Well, it all depends on your taste Electronic scrap is a complex mix of many different substances: Cu, Ag, Au, Pd, … (valuable?)
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Umicore Precious Metals Refining
IAER 2004 Summit
May 13, 2004
Other precious metals contained: Ag, Pd, (Pt)
Creating value and ecological benefit in a modern intergrated metals refinery
Purified off gas
Purified waste water
Hg, Cd, ...
, In, ...
, Au, Pt, Pd,
Output: much more than precious metals
InputMetals refining is a complex metallurgical “disintegration” and separation process
a complex, problematic feed is systematically worked on and turned into recycled, useful products
Smelting & Refining
Separated components & fractionsThere is more room for optimisation by considering the entire WEEE recycling chain
Preprocessing losses for PM can be between 10-35%
Investigate for optimisation
Smelting & refining
Preprocessing costs (incl. landfill)
E.g. low grade material: paying a gate fee to a smelter can still be a better deal than total costs and value losses by extensive preprocessingOptimising the trade-off between preprocessing & smelting/refining
Eco-efficiency of total chain:How „deep“ for pre-processing ?How „early“ to feed into a smelter/refiner ?
Let‘s analyse your material streams and mutually determine the best economical and ecological way
Impact on local & global environment (air, water, soil, people, ...)
& company policy
impact on total recycling chainFocus on eco-efficiency - finding the right balance between ecological and economical performance
Recycling cost is not a determinant factor by itself!
Industrial & consumerrecyclable products
Aggregate for concrete
250,000 tpyExample: the Umicore smelter & refinery at Hoboken/Antwerp (Belgium)
Since 1997: extensive refurbishment, new smelter, PM plant & electrowinning; EHS related investments > 50 M€
Cu + PM
Fe (+PM)In some cases „less can be more“(depending on type of material)
Examples for ....
... „less“ is benefitial:
small devices - mobile phones, handheld computers, digital cameras, ...
... „more“ makes sense:
white goods, TV-sets, monitors, PC‘s, ...
Total costs for recycling chain
Components, casing etc.
PM = Precious metals (Au, Ag, Pd)