Global gold prices rise significantly

Africa 每 world＊s largest regional gold producer

Gold processing plants in Africa

Case 1: South Africa 800 tpd low-grade rock gold processing plant

The main equipment is as follows:

1. Two-stage crushing

2. Grinding

3. Classification

4. Flotation

    Collector: The collector helps gold minerals attach to bubbles for flotation separation.
  • Frother: The frother promotes foam formation and maintains stability, ensuring mineral particles attach to bubbles.
  • Modifier: Used to suppress associated sulfide minerals like pyrite and galena, selectively floating out gold.
  • Regulator: Adjusts pH and other chemical conditions to optimize flotation results.

Note: Generally, collectors should be added before frothers to preferentially attach to the desired minerals.

5. Concentration and filtration

Case 2: Nigeria 50 tph alluvial and placer gold processing plant

1. Wet crushing and washing

2. Beneficiation

3. Gold extraction

    The rotary screen is ideal for processing alluvial gold, placer gold, and river mud gold. It efficiently and quickly washes the ore, making it suitable for large-scale processing, easy to operate, and low cost.
  • The jig, as a gravity separation device, effectively separates gold from other gangue minerals due to the high density of gold (19.3 g/cm3), recovering most useful minerals with a high recovery rate.
  • The shaking table is more efficient than other fine-grained gravity separation devices. It can separate different sizes of coarse sand (2每0.5 mm), fine sand (0.5每0.074 mm), and slime (每0.074 mm). It processes a large amount of gold ore at once, resulting in high-grade gold concentrates.

Case 3: Tanzania 10 tph rock gold processing plant

Compared to flotation plants, this plant is more cost-effective and provides quicker returns, making it popular among African gold miners.

    1 Two-stage crushing: Large gold ore is first crushed using a jaw crusher for primary crushing, then further crushed by Crusher.
  1. 2 Grinding: The crushed ore enters a ball mill and is ground into a fine powder to completely release the free gold.
  2. 3 Gold extraction: The ground ore is processed on a shaking table for gravity recovery, resulting in high-grade gold concentrates. Crusher

    Gold cyanide process: The gold ore is contacted with a cyanide solution, separating solids from the clear liquid; gold is recovered from the zinc solution using precipitation.
  • Carbon pulp gold extraction process (CIP/CIL): This method uses activated carbon to recover gold. Activated coconut shell carbon is added to the cyanide slurry to adsorb dissolved gold, which is then extracted.
  • Resin pulp gold extraction process: Gold can also be extracted from the slurry using ion-exchange resin. In this process, gold adsorbs onto solid spherical polystyrene resin beads. Crusher is a well-known manufacturer of resin-in-pulp gold extraction, recognized by Forbes as one of the best multinational companies.

FTM Machinerys manufacturing capabilities

How our manufacturing process benefits your gold processing plant:

    Enhanced gold recovery rates
  • Minimized operational downtime
  • Increased productivity
  • High standards of quality and safety
  • Continuous innovation and improvement

FAQs

1. What is a gold processing plant?

2. What should be considered when setting up a gold processing plant?

    Location: The plant should be as close to the mining area as possible, ensuring easy access to transportation, energy, water, and labor to reduce costs.
  • Environmental regulations: Follow local mining laws and properly handle the discharge of toxic substances like cyanide.
  • Technology: Choose the right gold extraction process based on the type of ore, such as gravity separation, flotation, or heap leaching.
  • Funding: Ensure enough startup and operating capital, and consider financing options.

3. Top 10 largest gold mines by production in 2023

Mine Location Muruntau Mine Uzbekistan Carlin Mine USA Olimpiada Mine Russia Cortez Mine USA Grasberg Block Cave Mine Indonesia Boddington Mine Australia Lihir Mine Papua New Guinea Pueblo Viejo Mine Dominican Republic Kibali Mine Democratic Republic of the Congo Loulo-Gounkoto Mine Mali

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