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一、稀贵金属简介。稀贵金属是指金、银、铂、钯、铑、铱、锇、钌8种金属。因其在地壳中含量甚少,故而谓之稀贵金属。世界上金产量最多的国家是南非,1983年以来年产量约703吨。其次是苏联,产量为345.21吨。第三位是加拿大,年产量约66吨,美国居第四位,约60吨。我国金产量目前已跃居前10位。银产量最高的国家为墨西哥,1983年起年产量超过2683吨。其次是美国,年产量约1570吨;秘鲁为1418吨;加拿大
First, the rare metal profile. The rare metal is gold, silver, platinum, palladium, rhodium, iridium, osmium, ruthenium 8 kinds of metal. Because of its low content in the crust, it is called the precious metal. The largest gold producer in the world is South Africa, with an annual output of about 703 tons since 1983. Followed by the Soviet Union, the output was 345.21 tons. The third is Canada, annual output of about 66 tons, the United States ranks fourth, about 60 tons. China’s gold output has now jumped to the top 10. The country with the highest silver output is Mexico, with annual production of more than 2,683 tons in 1983. Followed by the United States, with an annual output of about 1,570 tons; Peru at 1,418 tons; and Canada