The global distribution of laterite nickel ore
At present, the world's proven nickel reserves of about 1.6 tons, the sulfide ore accounted for about 30%, accounting for about 70% of laterite nickel ore. Nickel sulfide and laterite nickel and produced in an ultrabasic rock belt, but not in the same deposit in vertical symbiosis, which is not like copper deposit, below the enrichment zone of the secondary usually have the primary copper sulfide ore. The resource of nickel sulfide ore quality is good, technology is mature, now about 60% of nickel from nickel sulfide ore, because of the long-term exploitation of nickel sulfide ore, in the recent 20 years the nickel sulfide ore resource exploration on new no major breakthrough, to maintain reserves fell sharply. Such as 1200000 tons annual amount of nickel, is the equivalent of 2 years after picking a Canadian V Izzy Bay nickel deposits (ore deposit, nearly twenty years the only discovered the world's fifth largest nickel sulfide), 5 years after mining in Jinchuan nickel mine (the world's third largest nickel sulfide). Therefore, at present, the global nickel sulfide ore resource has the resources crisis, and several nickel sulfide ore mines traditional (Sudbury, Canada, Russia Nuolieersike Can Borda of Australia, Jinchuan, South Africa China in waltensburg etc.) mining depth is increasing, the mining difficulty. Therefore, the global nickel industry will focus on resource development aimed at rich laterite nickel ore resources.
Laterite nickel ore resources for the deposit surface weathering rock mass weathering - Leaching of nickel sulfide ore deposit formation, the laterite distribution in the equatorial line north and South 30 degrees in tropical countries, mainly distributed in the tropical Pacific and subtropical area, mainly has: America Cuba, Brazil; southeast of Indonesia, Philippines; Oceania Australia, New Caledonia, Papua new guinea.
Nickel ore reserves in 70% concentrated in Gansu, secondly distributing in 7 provinces of Xinjiang, Yunnan, Jilin, Sichuan, Shaanxi and Qinghai and Hubei, the total reserves accounted for 27% of the total reserves of nickel resources. Ore types in China mainly copper sulfide ore and nickel laterite. China's nickel laterite mainly imported from Philippines. Since 1970 Japan and Philippines started cooperation, set up a joint venture mineral company mining high grade nickel nickel containing more than 2%, Nippon Steel and Sumitomo transported back to the company for smelting, resulting in Philippines high grade nickel ores by Japanese enterprise monopoly, and nickel content import in China only in the low grade nickel ore 0.9%~1.1%.
China's neighboring countries are nickel ore reserves of 11250000 tons, only distributed in a few countries, including Russia (6600000 tons), Indonesia (3200000 tons), Philippines (410000 tons), Burma (920000 tons) and Vietnam (120000 tons), but a larger proportion of the total world reserves, accounting for about 23%. The laterite nickel ore are mainly distributed in Indonesia, Philippines and Burma. The main Indonesia nickel resources, basic ultrabasic rock weathering crust of laterite nickel ore, distribution in the islands of the eastern, ore belt can track from Sulawesi to Hjalmar Hera, Obi, and Georg islands, and the bird's head Peninsula Irian Jaya the Tana Mela region, because of Indonesia ultrabasic rock belt of weathering crust widely distribution, so the laterite nickel cobalt ore has good ore prospects. Philippines also with laterite nickel based, mainly distributed in the Luigi Nono island. Burma also has a lateritic nickel silicate, the India Burma mountains ultrabasic rock belt control, distributed in the western margin of the central basin. Russian nickel resource distribution in the Siberia platform in northwestern margin of Norilsk copper nickel sulfide mining area. Vietnamese ore as Cu Ni sulfide type, distributed in the northwest, is known to have Benford's deposit La Province, hosted in the Heishui River rift Tabb ophiolite belt, has proven reserves of 120000 tons.