AmPrep MRS-60B Unit -- High-Capacity Recovery System
 

The MRS-60B is an easy-to-use, high-efficiency, high-capacity recovery system; it is the result of Amprep's over 30 years experience in building electrowinning systems using leading edge technology.

It is capable of capturing up to 3 pounds per hour of high-purity gold and equivalent amounts of other precious metals. The MRS-60B features sixty (60) premium-grade stainless steel plates that have sixty square feet each of cathode and anode are. The plates are arranged in a compact ribbon-flow design, and are compatible with cyanide, thiocyanate, and thiosulfate leaches.

PROCESS
High-grade mining concentrates (fine ground or flotation) or milled electronic scrap are introduced in the reaction vessel, along with a leaching solution, and agitated. The precious metal dissolves into the leaching solution. The mixer is then turned off and the solids allowed to settle out. The now pregnant solution is filtered and pumped into the pregnant holding tank, pumped through the MRS unit and returned back to the pregnant holding tank. This part of the process continues until the metal concentration drops below 10 ppm. The precious metal is collected on the stainless steel plates contained in the MRS unit. When the plates are loaded with metal, they are removed and then scraped. Depending upon the material being leached and the type of leachant used, the stripped (barren) solution may possibly be returned to the reaction vessel and reused.