2. Reclaim (reclamation) get back (recover)
Nov 29 / Act B27
Reclaiming the Metal
LEARNING TARGET: I can determine which metal is most effective in reclaiming copper from copper chloride solution. I can use evidence to inform a decision on which is the most VIABLE metal to use.
CH Q
Which metal is best at reclaiming copper from the used copper chloride solution?
VOCAB:
Reclaim (reclamation)
get back (recover)

3. 6CuCl2 + 6H2O + 6x  3H2 + 4xCl3 + 6Cu + 2x(OH)3
best reaction today (minus the best metal x): don't feel overwhelmed, just read left to right taking each piece one at a time, focus on important ones
reactants
products
6CuCl2 + 6H2O + 6x  3H2 + 4xCl3 + 6Cu + 2x(OH)3
hazardous
waste
water
metal to do
reclaiming
hydrogen
gas
(bubbles)
reclaimed
copper

4. PROCEDURE AND DATA
MATERIALS:
PROCEDURE: Read on pg. B and summarize
DATA: WS Reclaiming Copper From Waste
WS 24.2 Update

6. some copper present

7. complete reaction for today: Aluminum added for best reaction
reactants
products
6CuCl2 + 6H2O + 6Al  3H2 + 4AlCl3 + 6Cu + 2Al(OH)3
hazardous
waste
water
Al to do
reclaiming
hydrogen
gas
(bubbles)
reclaimed
copper

8. COST NOV 2016 metal prices: http://www.kitcometals.com/
Considering the trade-offs: What factors do you think should be considered in selecting a metal to use to reclaim copper?
COST NOV 2016 metal prices:
COST NOV 2018 metal prices:
Fe (iron) = $0.07 / lb
Al = $0.80 / lb
Zn (zinc) = $1.26 / lb
Cu = $2.62 / lb
Fe (iron) = $0.03 / lb
Al = $0.88 / lb
Zn (zinc) = $1.20 / lb
Cu = $2.83 / lb

10. POST DISCUSSION
Considering the trade-offs: What factors do you think should be considered in selecting a metal to use to reclaim copper?
most effective metal (but not expensive) to get more valuable metal reclaimed
how much copper reclaimed
how much waste metals allowed to go into environment
long-term environmental impact

12. ANALYSIS
- Discuss and answer none
ANS CHALLENGE Q
Which metal is best at reclaiming copper from the used copper chloride solution? A:
aluminum
HOMEWORK
Conservation of mass WS
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