The 2014 PEA was based on heap leaching
for copper recovery, followed by gold and silver recovery by cyaniding of the copper leach residues.
Summary: The leaching
kinetics of calcined magnesite in aqueous lactic acid solutions was investigated in a batch reactor by using parameters such as temperature, acid concentration, particle size, solid/liquid ratio, and stirring speed.
Perth, Australia, Feb 15, 2012 - (ABN Newswire) - Further leaching
efficiency has been achieved for Resource Mining Corporation's (ASX:RMI) new green-tech nickel recovery process as latest test work continues to optimize the leaching
has obtained a patent for a process of making titanium dioxide particles, comprised of forming a slurry comprising particles and a phosphate-containing agent, the particles comprising titanium dioxide and alumina; milling the slurry to form a homogeneous dispersion comprised of milled particles; leaching
the alumina off of the milled particles to form leached particles in a leached dispersion; treating the leached dispersion under conditions to react the leached alumina with the phosphate-containing agent to form aluminum phosphate and to coat the leached particles with the aluminum phosphate and form a slurry of coated particles.
A laboratory leaching
test was performed on treated cubes to determine the influence of copper retentions and addition of up to 1 percent ammonia on the retention and leaching
of copper in the treated cubes.
Townsend performed an EPA test known as the toxicity characteristic leaching
procedure (TCLP) on a variety of electronic items including computer CPUs S(central processing units), televisions, videocassette recorders, printers, cellular phones, remote controls, computer mice and keyboards, and smoke alarms.
report tests simulating a year's worth of CCA leaching
Headed by Akram Alfantazi, a specialist in hydrometallurgical technologies, the lab work will concentrate on developing new advances in hydrometallurgy, pressure leaching
processes and other extraction processes for clients like Inco, Falconbridge and Noranda.
Wastes discharged from EDAP/TETS also exhibit low leaching
characteristics when subjected to a water leaching
test," added Streblow.
Preliminary recovery results are currently indicated to be between 70%-89% for the four deposits following 60 days of leaching
In this study, the leaching
conditions of Sivrihisar (Adatepe) limonite type lateritic ore in acidic medium were investigated.
For copper amine-treated blocks, the greatest leaching
resistance was found for copper monoethanolamine and copper polyimine treatments, which retained more than 80 percent copper when leached in water and more than 50 percent when leached with a citrate buffer.