Silver Bull Resources (TSX:SVB,NYSEMKT:SVBL) announced preliminary results for its completed metallurgical test program on the silver and zinc mineralization at the Sierra Mojada project in Coahuila, Mexico.
As quoted in the press release:
- Silver recoveries from the Centenario Zone of up to 89% with an average recovery of 83% silver across a variety of silver grade ranges.
- The highest silver recoveries were achieved at a 75 micron grind using a cyanide strength of 5 grams per liter over a 24 hour time period.
- Roasting of the red zinc ore achieved up to 98.9% removal of zinc from the ore via fuming – producing an almost pure zinc oxide concentrate (approximately 80% zinc concentrate) at a 1,300 degrees Celsius roasting temperature.