Help Solve 90-10 Bronze Problem: Melting, Solidification, Separation

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SUMMARY

The discussion focuses on the separation of copper from a 90-10 bronze alloy, which consists of 900g copper and 100g tin. The objective is to extract at least 100g of copper with less than 2% tin content. The proposed method involves melting the bronze, allowing for partial solidification, and employing separation techniques to achieve the desired purity of copper. The assumption is made that the liquidus and solidus lines are straight, simplifying the phase diagram analysis.

PREREQUISITES
  • Understanding of phase diagrams, specifically for bronze alloys.
  • Knowledge of melting and solidification processes in metallurgy.
  • Familiarity with separation techniques used in metal refining.
  • Basic concepts of alloy composition and purity standards.
NEXT STEPS
  • Research the phase diagram of copper-tin alloys to understand melting points.
  • Learn about the process of fractional crystallization for metal separation.
  • Study the techniques for refining metals to achieve desired purity levels.
  • Explore the effects of temperature control during the melting and solidification processes.
USEFUL FOR

This discussion is beneficial for metallurgists, materials scientists, and engineers involved in metal processing and alloy refinement, particularly those working with bronze and copper alloys.

dcfan
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Hello,

I have difficulties solving a simple problem and would need some help to solve it. Thx very much in advance for your help, very appreciated ! :)
Here is the problem:

A kilogram of a 90-10 bronze contains 900g copper (100g Sn). Suggest a procedure for obtaining from this bronze at least 100 g copper that will have an analysis of <2 percent tin. Use melting, partial solidification, and separation steps. (Assumes that the liquidus and solidus are straight lines.)

Bronze:

[PLAIN]http://img259.imageshack.us/img259/9738/562cusn.jpg
 
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No ideas someone??
 

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