वास्तव में क्या चल रहा है
Oxidised copper minerals dissolve in sulfuric acid. That means the metal can be leached, extracted and plated into finished cathode at the mine site, and leave the country as a 99.99% product rather than as a concentrate. It is the same metal as the Chilean route and a completely different journey.
- सामग्री
- Copper
- प्रकार
- Oxide and mixed copper ore of the Central African Copperbelt
- यह कहाँ से शुरू होती है
- Democratic Republic of the Congo — Kolwezi and the Lualaba copper-cobalt belt
चरण दर चरण, और सीमा दर सीमा
Democratic Republic of the Congo · Kolwezi, Lualaba द्वारा धारित Operators with Gécamines as state partner (खनिक)
A richer orebody than most
Open-pit and underground mining of sediment-hosted ore that runs several times the grade of a typical porphyry.
यहाँ क्यों: The Central African Copperbelt is one of the richest copper provinces on Earth, and it carries cobalt with it.
Democratic Republic of the Congo · Hydrometallurgical plant on site द्वारा धारित Operators (रासायनिक)
Leaching with acid
Crushed ore is leached in sulfuric acid. Copper and cobalt dissolve together into a pregnant leach solution.
शेष का क्या हुआ: Acid is trucked in or made on site. In a landlocked country, the reagent supply chain is as hard as the metal one.
यहाँ क्यों: No smelter needed, so no reason to ship the ore anywhere.
Democratic Republic of the Congo · Same plant द्वारा धारित Operators (शोधनकर्ता)
Solvent extraction and electrowinning
An organic solvent picks the copper selectively out of the solution and releases it into a clean electrolyte; current then plates it onto cathode blanks. Cobalt is precipitated separately as a hydroxide.
यहाँ क्यों: This is the whole point of the route. The finished metal is made at the mine, in the country that owns the orebody.
South Africa · To Durban, Dar es Salaam or Beira द्वारा धारित Hauliers and traders (व्यापारी)
Two thousand kilometres by road
Cathode is bundled and trucked across one or two borders to a port. Delays at the border are measured in days.
यहाँ क्यों: Being landlocked is the permanent tax on this journey — and it is why the cobalt beside it travels the same road.
China · Wherever it is bought द्वारा धारित Fabricators (निर्माता)
Straight into the wire market
Cathode from Kolwezi is the same product as cathode from Guixi and trades on the same terms. Nobody downstream can tell which route it took.
यहाँ क्यों: Once it is cathode, copper is copper.
यह एक कार्यसाधित उदाहरण है। यह एक घोषित आरंभिक मात्रा को प्रकाशित सामान्य उपज और पुनःप्राप्ति दरों के माध्यम से अनुसरण करता है, इसलिए अनुपात जाँचे जा सकते हैं; यह किसी विशिष्ट शिपमेंट का अभिलेख नहीं है। मार्ग संबंधी तथ्य — कौन-से देश, कौन-सी प्रक्रियाएँ, और क्यों सामग्री को कहीं और संभाला नहीं जा सकता — सार्वजनिक रिपोर्टिंग से संकलित हैं।