Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

  • To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN
  • Use Add New Topic to ask a New Question/Discussion about Hydrometallurgy.
  • OR Select a Topic that Interests you.
  • Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
    Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
  • Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.

Tin & Lead Recovery & Electrowinning (1 reply)

S
Seeker
5 years ago
Seeker 5 years ago

What is the best chemical way to recover tin and lead separately from the solution containing chlorides of lead and tin?

How to recover lead and tin separately from the solution containing chlorides of lead and tin through electrodeposition?

Thanks!

T
Todd H
4 years ago
Todd H 4 years ago
Like

You may be able to change the chloride concentration and cause the lead to precipitate first.  Or -

Lead contamination is especially bad for gold alloys, small amounts of lead gives alloys that easily breaks when worked. But a simple way exist to eliminate the lead before the gold is precipitated.

When lead chloride is mixed with sulfate ions a solid precipitate of insoluble lead sulfate is formed. This is easily filtered off from solutions containing values.

Any sulfate ion works but commonly a couple of drops of sulfuric acid is added to the aqua regia before the solution is filtered to remove silver chloride before precipitating the gold.

A side effect from denoxing with sulfamic acid is that sulfuric acid is formed and lead sulfate is precipitated automatically.

Regards

 

Todd Harvey - Global Resource Engineering http://www.global-resource-eng.com


Please join and login to participate and leave a comment.