Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning

Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning 2017-04-21T02:33:06+00:00
  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Pyrometallurgy and Electrometallurgy.
  • 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.

Ashing of gold activated carbon and its recovery (3 replies and 1 comment)

Roselyn Yeboah
7 months ago
Roselyn Yeboah 7 months ago

Please can someone help me with ways to ash gold activated carbon followed by smelting! . I tried ashing 300g using a pot on a gas cooker but we couldn't get the carbon to burn so we tried smelting the granule with borax and salt peter as flux. The smelting pot we used is the compressor of the refrigerator but what we got does not look like gold nor silver.

7 months ago
David 7 months ago

Use the Social Share Bar on the Left. Tell everyone you can about It's FREE & GOOD.

Jorge Ganoza
7 months ago
Jorge Ganoza 7 months ago

It is necessary to roast the active carbon to approximately 750 oC for about three hours. Subsequently can be used the ashes in the regular fire assay. As you can see the first stage is to produce a calcine.The materials  and the process used to perform a regular fire assay are well known. 

6 months ago
MoudMagas 6 months ago

About that ashing processing what will be effect sand particles on furnace if it is covered by refractory brick. is someone can advice about using regeneration kiln for fine carbon ashing.

Lesley Kupahurasa
6 months ago

For the ashing of carbon you may use Fluidized Bed Incinerators (FBI).

Please join and login to participate and leave a comment.

BUY Laboratory & Small Plant Process Equipment

We have all the laboratory and plant equipment you need to test or build/operate your plant.

ENTER our Mining Equipment' Store

We Sell EQUIPMENT for all types of Mineral Treatment PROCESSES and Laboratory Testing needs

Have a Mineral Processing QUESTION?

Come in, ask your question

911Metallurgist Community Forums

Talk to other metallurgists and be helped.


We can IMPROVE ALL PLANTS / Mineral Processing Engineering & LABORATORY Ore Testing

911Metallurgy Engineering

Contact us for process engineering, metallurgical investigations, plant optimization, plant troubleshooting, needs. WE “FIX” METALLURGY.