Ashing of gold activated carbon and its recovery - Pyrometallurgy: Roasting, Smelting, Refining & Calcining + Electrowinning - Metallurgist & Mineral Processing Engineer

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN
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.

← Back to Pyrometallurgy: Roasting, Smelting, Refining & Calcining + Electrowinning...

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

7 years 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.

David

7 years ago

David 7 years ago

While you wait, review https://www.911metallurgist.com/electrowinning-smelting/extraction-of-au-from-ash-fine-carbons/

Use the Social Share Bar on the Left. Tell everyone you can about https://www.911metallurgist.com/metallurgy/ It's FREE & GOOD.

Roselyn Yeboah

6 years ago

Thanks

Jorge

7 years ago

Jorge 7 years ago

1 like by Lesley Kupahurasa

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.

MoudMagas

7 years ago

MoudMagas 7 years 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

7 years ago

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

Roselyn Yeboah

6 years ago

Thanks very much

Please join and login to participate and leave a comment.