CyPlus commissions Cold Caro’s Acid Systems at Two of Jaguar Mining Inc.’s Sites in Brazil

09-Sep-2009 - Brazil

CyPlus® has succeeded in commissioning two Cold Caro’s Acid systems for Concord, New Hampshire, USA-based Jaguar Mining Inc. at their Turmalina and Paciencia gold-mining operations in Brazil. The systems treat cyanide-containing effluent. Cold Caro’s Acid is a powerful oxidant that is produced in situ by adding hydrogen peroxide to concentrated sulfuric acid. It is used in gold extraction to convert cyanide into cyanate. “The CyPlus system is a proven process that achieves a yield of more than 80 percent of Cold Caro’s Acid,” says Stephen GOS, manager of Technology Solutions at CyPlus GmbH in Hanau-Wolfgang. The advantage of the CyPlus® system is that the heat from the reaction can be controlled and kept at low levels, thus ensuring safe operation.

“We require low cyanide discharge levels for our operations and it is essential to perform this economically. With the CyPlus® Cold Caro’s Acid systems, we expect to reduce reagent consumption by more than 30%, achieving the same low cyanide levels of 10 ppm or better. The results from the commissioning phase indicate that we made the right choice,” says Mauro Salim, project manager for both of the Jaguar Mining operations.

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