Gold Kacha

This is a centrifugal concentrator that takes milled and screened ore and separation medium is water. Rotating cone (polyurethane lined) receiving prescreened feed material. Water is applied to the feed onto the screen. The lighter material is washed down as tailing and the concentrate remains in the riffles of the cone for the washing down process to go into a hopper, where it is collected for further upgrade. Estimated recoveries of between 70 and 75%.

Gold Kacha - Technology Assessment

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Categories Sub-categories Assessment questions Assessment
Properties of the ore Type of deposits Is the technology suitable for hard rock deposits? Yes
Is the technology suitable for alluvial gold deposits? Yes
Is the technology suitable for eluvial gold deposits? Yes
Type of ore Is the technology suitable for free milling ores? Yes
Is the technology suitable for oxide ores? None
Is the technology suitable for sulphide ores? None
Is the technology suitable for carbonaceous ores? None
Is the technology suitable for refractory ores? None
Is the technology suitable for sand rock bearing ore? None
Is the technology suitable for ore with clay material? None
Is the technology suitable for ore bearing nuggets? None
Is the technology suitable for ore in desert areas? None
Is the technology suitable for ore in wet conditions? None
Is the technology suitable for ore in coarse gravels? None
Is the technology suitable for ore in fine gravels? None
Grade/gold content Is the technology suitable for high grade ores? None
Is the technology suitable for low grade ores? None
Grain size of the gold) Is the technology suitable for fine grained gold? Yes
Is the technology suitable for course grained gold? Yes
Is the technology suitable for mixed fine and course material? None
Is the technology suitable for very/ultra fine grained gold? None
Feed volume (batch volume) Is the technology suitable for large quantity of feed material? No
Is the technology suitable for small quantity of feed material? Yes
Operationals requirements Cost of equipment Are the costs of procuring the technology affordable to artisanal miners? Yes
Are the costs of procuring the technology affordable to small-scale miners? None
Are the costs of operating the technology affordable to artisanal miners? None
Are the costs of operating the technology affordable to small-scale miners? None
Are the costs of maintanance and replacement affordable to small-scale miners? None
Are the costs of maintanance and replacement affordable to artisanal miners? None
Utilities and inputs required Does the technology require water? Yes
Is the amount of water required suitable to processing by individual miners? None
Does the technology require electricity or power source? Yes
Is the amount of electricity required suitable to processing by individual miners? None
Does the technology requre diesel? No
Is the amount of diesel required suitable to processing by individual miners? None
Does the technology require reagents during processing? Yes
Is the amount of reagents suitable for processing by individual miners? None
Does the technology require any other infrastructure? None
Type of organisation Does the technology allow operation by individual miners? Yes
Does the technology allow operation by group of miners? Yes
Does the technology allow operation by organisations? No
Does the technology allow operation by processing plants? No
Does the technology work only with a continous system? No
Does the technology work with batch and continous systems? No
Does the technology work only with a batch system? Yes
Processing flowsheet and performance of the techology Processing flow Does the technology work as a standalone? No
Does the technology work as part of a process system? Yes
Gold recovery Does the technology offer high recovery rates compared to the amalgamation process? Yes
What are the typical gold recoveries for this technology? 70-75%
Does the technology produce gold directly? Yes
Does the technology produce gold directly but in a different form to be converted to gold? None
Does the technology require other processes to recover the gold? Yes
Are there potential gold losses during processing with this technology? None
Processing time Does the technology offer less processing time compared to the amalgation process? None
Tailings Can the technology re-process tailings? Yes
Recovery of other minerals Can the technology recover other minerals in addition to gold? Yes
Visual tracking and monitoring Does the technology allow visual tracking and/or monitoring? No
Local considerations Availability of the equipment Does the technology make use of equipment that is locally available? None
Availability of the inputs Does the technology require inputs that can be locally sourced? None
Scalability of the technology Can the technology be scaled up or down to suit the spectrum of ASGM activities? No
Adaptability of the technology Can the technology be used in remote areas? Yes
Ease of use/learning (skills requirement) Is the technology easy to use or learn? Yes
Does the technology require knowledge /skills on metallurgy to use? No
Capacity to maintain Is the technology easy to maintain? No
Health, safety and environment Risks Health and safety hazards Does the recovery of gold using this technology pose any health and safety hazards? No
Environmental risks Does the recovery of gold using this technology pose any environmental risks? No

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1 comment has been posted about this technology

    ItaiM - July 17, 2023, 6:43 p.m. moderator
    Hi everyone, I wanted to ask if anyone can tell us what countries they've seen this technology being used in? Just reply below. Thanks

    Reply