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-| Recyclate compounds"

Eddy current

J Recyclate compounds

-| Recyclate compounds"

Eddy current

-| Recyclate compounds" -| Recyclate compounds"

Steel recyclate

Cu recyclate

Pb recyclate

Thermal processing

Energy recycla

Figure 9.4 Scheme depicting a portion of a Matlab/Simulink dynamic Recycling Model (© MARAS): (1) disassembled groups from CRTs; (2) physical separation/sorting; (3) structural system parameter/addition of streams; (4) conversion; (5) metallurgy/energy/landfill.

Main materials on PWBs

Main materials on PWBs

■ Copper recyclate

□ Aluminium recyclate

□ Stainless steel ■ Polypropelene

■ Copper recyclate

Metal recycling % vs. shredding intensity

Main destinations after strong shredding

□ To steel recycling

□ To copper recycling

I To energy recovery □ To aluminium recycling

Metal recycling % vs. shredding intensity

Element on PWB

Shredding intensity to smelting Strong shredding Little shredding

Figure 9.5 Metal recycling rates predicted by the recycling model for different metals for the recycling of disassembled printed wiring boards (PWBs) either fed to a copper smelter or shredded with varying intensity and subsequently sorted.

A typical copper recyclate defined as copper "minerals"

A typical copper recyclate defined as copper "minerals"

□ Al □ Ceramics □ Cu □ Epoxy □ IC's □ Polypropylene oPVC □ Solder □ Stainless □ Others
Copper recyclate compounds - post shredder and unsorted

□ai

■ BaO

□c2h3ci

°C3H6

■ CaO

□ Cu

■ Epoxy ■ Fe

□ FeO

□ PbO

□ Sb2O3

□ SiO2

□ SrO

□W

□ Others

Figure 9.6 Copper recyclate material quality, compound concentrations, and outputs from a copper smelter (all in wt%) for the simulation model partially depicted in Figure 9.4. (a) A typical copper recyclate defined as copper minerals; (b) copper recyclate compounds, post shredder and unsorted; (c) typical copper from furnace (composition in terms of elements); (d) typical benign slag from copper furnace (metal composition); (e) small amount of a typical benign flue dust from copper furnace. Note that all of these analyses fit to one another.

Typical copper from furnace (composition in terms of elements)

Typical copper from furnace (composition in terms of elements)

□ As nCo nCu nFe nPb ^Others (d) Typical benign slag from copper furnace (metal composition)

□Al2O3 inBaO mCaO dCu20 aFeO+SiO2 ciPbO t:Sb2O3 □Sr2O3 dW02 mZnO mothers

(e) Small amount of a typical benign flue dust from copper furnace

(e) Small amount of a typical benign flue dust from copper furnace

□As compounds

□ Benign Cl compounds □ Bi compounds

□ Cu compounds nFe compounds

Table 9.3 Typical results of theoretical optimization case studies for different objective functions for the recycling of CRT televisions, showing the versatility of the recycling model and its capability. This illustrates that there is no one answer.

Results (fractions) for calculations that maximize:

Case studies Current Recycling rate Metal recycling Recycling and

Table 9.3 Typical results of theoretical optimization case studies for different objective functions for the recycling of CRT televisions, showing the versatility of the recycling model and its capability. This illustrates that there is no one answer.

Results (fractions) for calculations that maximize:

Case studies Current Recycling rate Metal recycling Recycling and

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