Mining

Diazem Corporation has developed a powerful adsorption resin ideally suited for the recovery of precious metals from mine tailings. The resin's unique selectivity and robustness allow it to be used in basic cyanide leaching processes as well as acidic aqua regia leacheates.

One of the advantages of the Diazem resin is its selectivity. In a cyanide mine tailing process, the Diazem resin was able to selectively remove large concentrations of copper, leaving a rich silver and gold liquor. The reaction kinetics of the resin is almost instantaneous with resin capacity being governed somewhat by the surface area of the substrate. Recorded copper capture rates have been as high as 320 kilograms of copper per ton of resin.

Click here for data on the purification of mine tailings using Diazem technology.

Diazem mining resin provides:

Cost effective mining process to capture precious metals from mine tailings
Efficient separation of copper from gold, silver or copper solutions
Efficient removal of other precious metals from mine tailings
Ability to reduce levels of CN needed in the process
Ability to scavenge NaCN from mining solutions

Diazem resins offer a wide operating range:

pH capture range between 2.5 and 10
No preconditioning required
Regeneratable
Tailored capacity

Proven Success

Diazem technology was recently used to remove copper and zinc contaminants from the gold mining process for a major Mexican mining firm, a breakthrough that proved to be instrumental in the company's ability to obtain financing to begin mining.

Diazem's Chelation Technology was used to remove radioactive radium from the water residue of a mining process for a Fortune 500 company. The radium level was successfully reduced from 15 pico curries to less than 1 pico currie, well below the acceptable limit of 5 pico curries.

Contact Diazem for more information.