论文部分内容阅读
一、钨的地质资源 世界钨资源比较丰富。据美国地质调查局2002年初公布资料,世界钨储量为190万吨,储量基础为310万吨。按2001年钨精矿产量测算,世界钨储量和储量基础的静态保证年限分别为30年和50年左右。2001年世界钨储量和储量基础如下表所示。 我国钨资源十分丰富。美国地质调查局公布2001年中国钨储量(按含钨量计,以下均同)为77万吨,储量基础为110万吨,分别占世界总储量的38.5%和35.5%,居世界第一位。 根据国土资源部新近套改储量数据看,同期我国保有钨储量为80万吨,基础储量为170万吨。我国钨资源分布于21个省区,其中湖南占34.0%,江西占
First, the geological resources of tungsten The tungsten resources in the world is rich. According to the data released by the United States Geological Survey in early 2002, the world’s tungsten reserves were 1.9 million tons and its reserves was 3.1 million tons. According to the calculation of the output of tungsten concentrates in 2001, the static guarantee periods of the world’s tungsten reserves and reserves are 30 years and 50 years respectively. The world tungsten reserves and reserves in 2001 are shown in the following table. China’s tungsten resources are very rich. The United States Geological Survey announced that China’s tungsten reserves in 2001 (based on the tungsten content, the same below) were 770,000 tons and the reserve base was 1.1 million tons, accounting for 38.5% and 35.5% of the world’s total respectively, ranking the first in the world . According to the data recently set by the Ministry of Land and Resources, the reserves of tungsten in our country are 800,000 tons and the basic reserves are 1.7 million tons. China’s tungsten resources are distributed in 21 provinces and autonomous regions, of which Hunan accounts for 34.0% and Jiangxi accounts for