Business
Manica metallurgical results
Manica metallurgical results.
About this update from Pan African Resources Plc
[{"type":"text","content":"\n Pan African Resources PLC\n02 October 2006\n\n\n\n Pan African Resources PLC\n ('Pan African' or 'the Company')\n\n Manica Project, Mozambique\n\nUpdate on metallurgical test results forming part of pre-feasibility study\n\n\n\nPan African Resources PLC (AIM: PAF), the African based gold exploration\ncompany, announces the results of the metallurgical work completed on the Fair\nBride prospect within the Manica Project, where the company is completing a\npre-feasibility study on an opencast mine.\n\n\n\nHighlights\n\n\n\n• Overall gold recoveries from the upper oxide zone is 90% through normal\n cyanidation\n\n• Overall gold recovery from the lower sulphide zone is 86% through a\n combination of flotation, BIOX(R) and normal cyanidation\n\n• Further optimisation test work is currently underway\n\n\n\nScope of work\n\n\n\nThe mineralised envelope at Fair Bride can be divided into an upper oxide zone\n(weathered) and a lower sulphide zone (unweathered), both of which are being\ninvestigated to be mined from surface. Traditionally gold recovery in oxide\nzones is more easily achievable than in sulphide zones where the gold is often\nlocked up within sulphide minerals. However, in recent years, efficient and\neffective gold extraction has been achieved from sulphide zones through\nadditional extraction processes. With this in mind the company engaged the BIOX\n(R) division of Gold Fields Limited ('Gold Fields') to carry out metallurgical\ntest work as part of the pre-feasibility study.\n\n\n\nWork completed\n\n\n\nOxide zone - A 10kg representative oxide sample was submitted to SGS Lakefield\nin South Africa. The sample reported a recovery of 90.12% as a result of normal\ncyanidation.\n\n\n\nSulphide zone - A 500kg composite sulphide core sample was submitted to SGS\nLakefield in South Africa for laboratory flotation test work and a 10.17kg\nconcentrate was produced therefrom for BIOX(R) test work. These tests resulted\nin gold dissolution recoveries with some tests as high as 93% and an overall\nrecovery of 86% through a combination of flotation, BIOX(R) and normal\ncyanidation.\n\n\n\nWork currently underway\n\n\n\nPan African together with the BIOX(R) division of Gold Fields are currently\nfinalising a conceptual metallurgical flow diagram, preliminary equipment lists\nand order-of-magnitude cost estimates for the treatm...