Hello All, eco-goldex registered an account on this forum two years back, but was too busy to come here joining the discussion. recently quite a few of eco-goldex clients contacted us about some suggestions/comments of how to use eco-goldex E agent in e-scraps recycling/gold ore processing. i would like to use this forum to answer any question that our users might encounter in their application/test of our product.
we are the inventor/producer and supplier of eco-goldex series and equipment, our answers/suggestion are based on our own research and test results. we consider our answers are official and correct, at the same time,we acknowledged that there are still a lot of potentials yet to be explored of our product application.
answers on some representative comments/questions that were asked by clients:
Q: eco-goldex E/O series need UV light to make it work.
A: No, both eco-goldex E/O agent don't need any UV to make them work. as long as you follow our instructions:
- 5% agent concentration in stripping solution;
- stripping solution temperature maintains around 35-40oC;
- maintain good dynamic in the stripping solution(make sure all materials in the stripping solution are equally exposed to stripping solution to avoid partial stripping);
then you should see very good stripping result.
Q: one of our clients sent us a comment about eco-goldex of its leaching features as cited here" The reason why the alternative leaches are not used commercially is, apart from the price of the active cyanide component being raised by the cost of the additives, the additives will dissolve many other metals which cyanide alone will not dissolve.
These metals will adsorb onto carbon but are not desorbed by a cyanide strip, so after a few cycles your carbon is clogged with metals which not only prevent gold loading onto the carbon but also prevent the loaded gold from being effectively stripped.
Basically you get only one strip from the carbon then you have to dump it, depending on the contaminants being loaded.
Always remember that these leaches are being sold to make money for the promotors, your interests are well down the line.
I would, in your case, investigate the possibility of accessing either ferro or ferricyanide availability.
Always keep in mind that all of the other leach formulations are going to be either or both of the above with added metal solubilising agents to keep the mystery going"
A: both eco-goldex O agent and cyanide can dissolve metals(Au,Ag,Cu,...) in ores. any Active carbon (AC) used in precious metal adsorption has limited cycle period due to the decrease of its adsorption effectiveness. these downgrade of adsorption effectiveness is not because of the metals adsorbed on AC surface, but due to clays/lime scales (used for pH adjust). this is the reason that AC after elution must be reactivated using acid to wash any base metals/lime scales that might be still exist in AC.
the comment"
the additives will dissolve many other metals which cyanide alone will not dissolve" is derived either the person who post the thread has no practical experience in cyanidation in gold ore leaching or use his/her imagination to mis-interpretation and accordingly misleading the readers.
Eco-Goldex O series agent can be used for loaded AC elution purpose, we don't need to use cyanide in any steps. users who need help may contact us in how to do elution.