Gold Mining

Kibali, one of the largest gold mines of its kind in Africa, is situated in the DRC, adjacent to the town of Doko and 210km from Arua on the Ugandan border.

The consolidated lease is made up of 10 mining concessions. The metallurgical plant comprises a twin-circuit sulphide and oxide plant with conventional carbon-in-leach (CIL), including gravity recovery as well as a float and ultra-fine grind circuit.

Gravity Mining Corporation operates the mine which comprises both open pit and underground operations.

Gold has many unique qualities – it is exceptionally malleable and ductile, conductive and does not corrode or tarnish. Gold also combines well with other metals to form an alloy. Its versatility makes it ideal for use in many industrial applications, and increasingly, its application as a nanomaterial is being used to create new solutions for a number of health and environmental challenges.

Gold Refining - Gold Floatation Process

The flotation method is the most widely used ore dressing method in the production of gold. It has high flotation efficiency and can handle fine-grain-dipped ore.

For ore with complex composition, the flotation method can get good separation results. Flotation method is often used to treat gold ore containing sulfide minerals with high floatability.

The sulfide ore mainly includes sulfide-depleted gold ore (mostly quartz vein type or hydrothermal alteration type), poly sulfide gold ore and polymetallic. auriferous sulfide ore, the flotation process can maximize the enrichment of gold into the sulfide mineral, and lower the beneficiation cost.

Diamond

Diamond mines can take several different forms, depending on the location and the geology of where the mine is located. The type of mining employed can have a significant impact on the economic viability of the mine, and can ultimately determine if a diamond deposit can be developed or not. Mining, however, must take into account more than just economic considerations.

The most common form of diamond mining takes place in what is known as an open pit, which is generally the most cost-effective alternative for large kimberlite deposits. In open-pit mining, a large carrot-shaped hole is dug in the ground, starting from its widest point at the surface and getting gradually narrower at depth.

This type of digging exposes the entire extent of the diamond-bearing kimberlite so that no ore is missed during processing. The digging is done in such a way that the outside walls of the pit form roadways that allow hauling machinery to travel down to depth safely.

Tin

Tin is extracted by roasting the mineral cassiterite with carbon in a furnace to approximately 2500 degrees Fahrenheit. The next step involves leaching with acid or water solutions to remove impurities.

Electrostatic or magnetic separation helps to remove any heavy metal impurities. Compared to the processes used in the past, today’s advanced technology allows the industry to produce ten times more tin.

From toothpaste to window glass to wiring, tin remains an important material in our world. Past and present uses demonstrate the importance of the tin mining process.

Copper Cathodes

The cathode is the basic product of copper production. It is produced in a marketable form at Gravity Mining Corporation for use in high-quality applications.

Copper cathodes with specific maximum impurity levels are also registered and traded on the London Metal Exchange and the Comex. High-quality copper is distinguished by low impurity levels, as even the smallest amounts of selenium, bismuth or antimony in the ppm range can strongly influence conductivity.

The Gravity Mining Corporation copper cathode brands NA-ESN, HK, OLEN and PIRDOP are registered on the LME and have a very high level of purity and constant quality, regardless of the input materials. These cathodes form the basis for our high-quality copper products.