Laboratory Testing & General Mineral Processing Engineering

Laboratory Testing & General Mineral Processing Engineering 2017-03-23T09:50:31+00:00
  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Mineral Processing or Laboratory Work.
  • 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.

Replacement substance to Mercury (4 replies)

Basel A-Shaban
10 months ago
Basel A-Shaban 10 months ago

Greetings:

I would appreciate your help in identifying a processing and a purifying replacement substance to Mercury in gold mining. I am interested in presenting a less pollutant substance to Mercury that can be obtained in commercial quantities for gold mining in Sudan. Your help is appreciated.

David
10 months ago
David 10 months ago

Hello Basel and welcome.

Is this for a new or existing, already operating plan?  Can you tell me more about your situation? Are you looking just for a new chemical or a chemical-free method?

 

Basel A-Shaban
10 months ago
Basel A-Shaban 10 months ago

Thank you David. These are existing government and semi-government mines that have been in operation for few years now. We are looking to introduce a chemical replacement substance to replace Mercury as an agent used in the process of purifying gold. The new substance needs to be commercially available in large quantities that can be exported to Port Sudan, Sudan.

David
10 months ago
David 10 months ago

Well, I personally do know know of such chemical.  Modern fine gold recovery methods use as a test to determine recovery https://www.911metallurgist.com/blog/gravity-recoverable-gold-grg-test and as a machine https://www.911metallurgist.com/blog/gold-recovery-with-centrifugal-gravity-concentrator

You may want to watch this 'no mercury' gold recovery video https://www.911metallurgist.com/blog/mercury-free-gravity-borax-method-gbm and promote that all you see here in Sudan.

Until somebody else more knowledgeable comes in, this is all I have for you Basel.

 

MinEx Associates
10 months ago
MinEx Associates 10 months ago
1 like by David

There is no substitute as such - if borax was a real option, everyone would be using it.  If for final recovery and cleaning, mercury is fine.  It can be controlled.  The issues with mercury are with uncontrolled artisanal use and 'scattering' in 'land dredging' to achieve better recovery. 

Please join and login to participate and leave a comment.