Gold vat leaching in Tanzania

 

 Vat leaching gold processing method is the recently technology that practised in developing nations. In Tanzania vat leaching method welcomed in 2000s and put into practise firstly in Geita district by mineral processing engineer Mr Chacha who resigned from Geita gold mine for tailing gold vat leaching in partnership with miner investor Mr Barack, currently the owner of Busolwa gold mine. Several small scale miners trapped in the free fall wealth at the early time when tailing where plenty of and sold at the dump price.

 As the time goes tails became scarcity and price goes up, also because of usual business of miners of using only experienced mineral processing technicians caused the situation to turn the business into free fall negative generating cash flow for most case.

In early of 2017 gold rush erupted in Rhori, Bahi district of Dodoma region were small scale miners rushed to try their good luck. New gold vat leaching plant constructed around mines area and a lot of gold tailing generated. The average of gold grade in the tailing is 2.3g/ton but the metallurgy of the ore body is very complex and difficult for vat leaching because of been associate with zinc, silver and copper sulphide.

Several vat leaching investor tried to dump their capital but most of them they come out with negative cash flow and blamed their local knowledge metallurgy technicians for the negative outcome.
Problems facing gold vat leaching investment

Pawa Misese a prominent graduate geologist experienced in gold small to medium scale miners he visited Nhori mines several times but because of negative result of vat leaching he commented that Nhori gold is very fine and associated with Zn-Ag-Cu-gold bearing ore body and most of them left in tailing by gold washing plant of sluice box but usual business of small scale miner of using just local knowledgeable expert is killing them. The ore body need analysis for grain size, metallurgy, and gold grade but for them they just do laboratory grade analysis for gold only and jump to leaching.
Problems and solution of vat leaching investment

To understand this method of vat leaching gold miner must considers three factors in doing analysis that first understand the gold grade in the tailing, know the metallurgy of ore body and know the gold grain size and respectively desirable milling size for maximum liberation of gold and the result must be tested by laboratory experiment to know the rate of recovery before throwing money into project.

What Machimbo explorer will do to solve the problem?
For the position of Machimbo explorer preparing vat leaching education project to address the problem and the way how to solve it for maximum supper profit vat leaching investment.