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Professional Qualifications:
 The South African Government Miner's Training College
 Practical Metalliferous Mining (Honours)
 Learner Official Training Centre Kloof Gold Mine
 Witwatersrand College for Advanced Technical Education
 Diploma in Mining Engineering.
 University of South Africa
 Accounting 01B
 Mine Manager's Diploma
 General Management Development Programme
Association Membership:
 The Association of Mine Managers of Zimbabwe
 Ordinary member
 The Zimbabwe Institute of Management
 Ordinary Member

November 1979 - November 1980
Impala Platinum Ltd., Bafokeng South Mine, Rustenberg
Capacity: Shift Boss
February 1981 - April 1988
Riverlea Mine (Pvt) Ltd, KweKwe, Zimbabwe
Capacity Shareholder / Operator
 Employed a labour force of 220 and a staff complement of 3.Initiated
operating improvements by;
 Automation of the underground and surface ore handling facilities.
 The deepening of 2 shafts, instituting an ore pass system.
 Purchasing, installing and commissioning air loaders and underground
locomotives.
 Purchasing, erecting and commissioning a surface conveyor and crusher
system.
 Purchasing, erecting and commissioning of two ball mills along with the
extension of the original flotation plant, doubling the throughput of the mines.
 The negotiating, coordinating, erecting and commissioning of the first
Bacteria Leaching plant, in conjunction with an American supply house.
 Opened Dalling Mine, which included shaft sinking, lateral development, and
the purchase and commissioning of a differential float plant, due to high
antimony.
 Purchased the Globe and Phoenix Mine and initiated the dump retreatment
operation and the open cast mining operations over the Globe reef.
The mines were sold in 1988.
May 1988 – 2012
Minex 1988 (Pvt) Ltd., Harare, Zimbabwe
Capacity: Chairman. and MD
Minex was formed in 1988, to supply the mining industry in Africa
with mining expertise, quality capital equipment at realistic prices and
product back-up. Minex, undertook the following projects:
 Consulting to Dalling Mines for a hand-over / take-over of the mining
operations.
 Feasibility, and planning of the Baomahun Gold Project in Sierra Leone.
Included supply installation and commissioning of a 50 000 tpm heap leach
project, and establishment of surface and underground exploration and
mining operations.
 Mining Consultant to Cluff Resources on the Mobale and Twangisa mines in
the Democratic Republic of Congo.
 The establishment of the Box cut and trial mining for the Farim Phosphate
mine in Guinea Bissau.
January 1992 - To 2006
Sesi Zimbabwe (Pvt) Ltd., Harare, Zimbabwe
Capacity: Chairman and Managing Director
 Focused on the drilling of water boreholes, completing in excess of
1000 boreholes throughout Zimbabwe.
 Diversified into exploration drilling, reverse circulation and RAB
drilling.
 The operations moved to Kenya completing 125 boreholes.
 The moveable assets were sold to a Kenyan company.
January 1996 – November 1997
Gwizo Mine, Kwekwe, Zimbabwe
Capacity: Owner / Operator
Gwizo mine was purchased for the reef potential, the project was a 'green
fields', and included the purchasing and erecting of a crushing section,
milling section, and gold extraction circuit, establishment of underground
mining operations. The mine was successful and was sold to Africa
Resources in November 1997.
June 1997 – March 2001
San Martin Mining Company, Kisumu, Kenya
Capacity: Owner/Operator
Purchased a fifty per cent share in the San Martin Mining area, a 1400
Km2 concession area encompassing 39 old gold mines NE of Lake
Victoria.
Ramba Mine was brought into modest-scale production, but the historic
low gold price and investor disinterest resulted in suspension.
June 2001 - Dec 2012
Mineral Sands Limited Lilongwe Malawi
Capacity: Majority Shareholder / Operator
 Started up a pilot mineral sands dredging and floating processing plant at
Chipoka on the shores of Lake Malawi, requiring a low and high intensity
magnetic separation, electro-static separation and gravity concentration of
rutile, Zircon and Garnet.
 Commissioned and operated the Eland Coal Mine, a 10 000 tpm mining and
washing operation north of the town of Karonga in Northern Malawi.
Both operations were sold to Larsen Oil and Gas.
March 2013 - Dec 2014
Chejiri Gold Mine Sanyati, Zimbabwe
Capacity: Shareholder / Operator
Started a 2000 tpm milling and gold extraction plant in a remote area of
Zimbabwe, in conjunction with local land owners, and community
involvement. Production levels reached well beyond expectations, but was
forced to close due to political interference.
Floating Plant at Chipoka, Malawi
Electro Static Separators
Chipoka, Malawi.
Coal Washing Plant Karonga, Malawi
Dynamics of Magnetic Separation
Benefits of Dry Magnetic Separation
 No medium interference.
 As close to magnetic source as possible.
 Variable speed and feed control allow for finer cut
details.
 No drying required
 Better separation controls
 Gravity concentration using spirals.
 Gravity concentration using tables.
 Flotation.
 Electro-static separation
Addition Downstream Process Options

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Denysson Presentation

  • 1. Professional Qualifications:  The South African Government Miner's Training College  Practical Metalliferous Mining (Honours)  Learner Official Training Centre Kloof Gold Mine  Witwatersrand College for Advanced Technical Education  Diploma in Mining Engineering.  University of South Africa  Accounting 01B  Mine Manager's Diploma  General Management Development Programme
  • 2. Association Membership:  The Association of Mine Managers of Zimbabwe  Ordinary member  The Zimbabwe Institute of Management  Ordinary Member
  • 3.  November 1979 - November 1980 Impala Platinum Ltd., Bafokeng South Mine, Rustenberg Capacity: Shift Boss February 1981 - April 1988 Riverlea Mine (Pvt) Ltd, KweKwe, Zimbabwe Capacity Shareholder / Operator  Employed a labour force of 220 and a staff complement of 3.Initiated operating improvements by;  Automation of the underground and surface ore handling facilities.  The deepening of 2 shafts, instituting an ore pass system.  Purchasing, installing and commissioning air loaders and underground locomotives.
  • 4.  Purchasing, erecting and commissioning a surface conveyor and crusher system.  Purchasing, erecting and commissioning of two ball mills along with the extension of the original flotation plant, doubling the throughput of the mines.  The negotiating, coordinating, erecting and commissioning of the first Bacteria Leaching plant, in conjunction with an American supply house.  Opened Dalling Mine, which included shaft sinking, lateral development, and the purchase and commissioning of a differential float plant, due to high antimony.  Purchased the Globe and Phoenix Mine and initiated the dump retreatment operation and the open cast mining operations over the Globe reef. The mines were sold in 1988.
  • 5. May 1988 – 2012 Minex 1988 (Pvt) Ltd., Harare, Zimbabwe Capacity: Chairman. and MD Minex was formed in 1988, to supply the mining industry in Africa with mining expertise, quality capital equipment at realistic prices and product back-up. Minex, undertook the following projects:  Consulting to Dalling Mines for a hand-over / take-over of the mining operations.  Feasibility, and planning of the Baomahun Gold Project in Sierra Leone. Included supply installation and commissioning of a 50 000 tpm heap leach project, and establishment of surface and underground exploration and mining operations.  Mining Consultant to Cluff Resources on the Mobale and Twangisa mines in the Democratic Republic of Congo.  The establishment of the Box cut and trial mining for the Farim Phosphate mine in Guinea Bissau.
  • 6. January 1992 - To 2006 Sesi Zimbabwe (Pvt) Ltd., Harare, Zimbabwe Capacity: Chairman and Managing Director  Focused on the drilling of water boreholes, completing in excess of 1000 boreholes throughout Zimbabwe.  Diversified into exploration drilling, reverse circulation and RAB drilling.  The operations moved to Kenya completing 125 boreholes.  The moveable assets were sold to a Kenyan company.
  • 7. January 1996 – November 1997 Gwizo Mine, Kwekwe, Zimbabwe Capacity: Owner / Operator Gwizo mine was purchased for the reef potential, the project was a 'green fields', and included the purchasing and erecting of a crushing section, milling section, and gold extraction circuit, establishment of underground mining operations. The mine was successful and was sold to Africa Resources in November 1997. June 1997 – March 2001 San Martin Mining Company, Kisumu, Kenya Capacity: Owner/Operator Purchased a fifty per cent share in the San Martin Mining area, a 1400 Km2 concession area encompassing 39 old gold mines NE of Lake Victoria. Ramba Mine was brought into modest-scale production, but the historic low gold price and investor disinterest resulted in suspension.
  • 8. June 2001 - Dec 2012 Mineral Sands Limited Lilongwe Malawi Capacity: Majority Shareholder / Operator  Started up a pilot mineral sands dredging and floating processing plant at Chipoka on the shores of Lake Malawi, requiring a low and high intensity magnetic separation, electro-static separation and gravity concentration of rutile, Zircon and Garnet.  Commissioned and operated the Eland Coal Mine, a 10 000 tpm mining and washing operation north of the town of Karonga in Northern Malawi. Both operations were sold to Larsen Oil and Gas. March 2013 - Dec 2014 Chejiri Gold Mine Sanyati, Zimbabwe Capacity: Shareholder / Operator Started a 2000 tpm milling and gold extraction plant in a remote area of Zimbabwe, in conjunction with local land owners, and community involvement. Production levels reached well beyond expectations, but was forced to close due to political interference.
  • 9. Floating Plant at Chipoka, Malawi Electro Static Separators Chipoka, Malawi. Coal Washing Plant Karonga, Malawi
  • 10. Dynamics of Magnetic Separation
  • 11. Benefits of Dry Magnetic Separation  No medium interference.  As close to magnetic source as possible.  Variable speed and feed control allow for finer cut details.  No drying required  Better separation controls
  • 12.  Gravity concentration using spirals.  Gravity concentration using tables.  Flotation.  Electro-static separation Addition Downstream Process Options