1778 Columbia found that sand platinum mines and started mining. In 1817, the Ural Perm sand platinum mine was discovered and utilized in Russia. South Africa began mining primary platinum ore in 1908. From the late 19th century to the 1950s, the United States, Australia, Japan, Finland, New Zealand, and a large number of developing countries (such as China, Myanmar, Brazil, Chile, Ethiopia, Sierra Leone, Congo, Kim , Zambia) discovered platinum. Mines, but from reserves to production, Russia, South Africa and Canada have always been the world's ears.
In the early days, sand mining was the main source, mainly in Colombia and Russia. By the late 19th century, large primary minerals were discovered in Canada. In the 1920s South Africa discovered the Bush Verd deposit, which made the original platinum begin to replace the sand mine. Then the former Soviet Union discovered the Norilsk Platinum Mine in the 1960s, and the United States discovered the Stillwater Platinum Mine, which completely replaced the original platinum mine.
China is one of the countries where platinum group metals are scarce. Before the 1950s, there were only a few small sand-platinum mines. In 1959, Jinchuan was found to contain platinum- copper- nickel ore. In 1966, the nickel-electrolytic workshop was put into operation, and the production and utilization of platinum group metals took a turn for the better. In the 1970s, some small ore bodies were discovered, and low-grade platinum-poor ore was used. Some platinum group metals were also recovered from the smelting process of polymetallic ore and porphyry copper ore. Geological and geochemical research, but there has not been a major breakthrough in prospecting and exploration; on the contrary, with the development of the economy, the contradiction between supply and demand of platinum group metals is becoming increasingly acute, and imports are insufficient to make up for.
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