| 铁尾矿利用经济分析模型与应用 |
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| 引用本文： | 陈甲斌,贾文龙,范继涛.铁尾矿利用经济分析模型与应用[J].资源科学,2009,31(1):152-156. |
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| 作者姓名： | 陈甲斌 贾文龙 范继涛 |
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| 作者单位： | 中国国土资源经济研究院,北京,101149 |
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| 基金项目： | 国土资源部2007年地质大调查项目：“铁铜等重要矿产尾矿资源调查评价研究”（编号：1212010733712） |
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| 摘 要： | 在技术及选矿工艺等因素的制约下，我国历史上铁矿资源回收率偏低，进而导致了大量铁尾矿的产生。目前，铁尾矿资源回收利用技术及设备问题已基本解决，而且铁精矿价格日益高涨，促使国内铁尾矿资源开发利用的外部条件日益成熟。尤其是在国内外铁矿石价格高企的今天，使得铁尾矿资源开发利用更加具有经济价值和可行性。在借鉴矿床经济品位计算原理的基础上，通过适当的类推及数学极限处理而导出了铁尾矿资源回收再选的经济分析模型。在广泛收集铁矿山相关经营参数及预计未来铁精矿价格走势的基础上，通过计算认为我国铁尾矿资源回收再选的临界品位定在7%是比较经济合理的，并提出了免除铁尾矿资源回收再选的税金及其基建投资贷款利息减半的政策优惠设想。
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| 关 键 词： | 铁矿 尾矿 临界品位 价格 中国 |
| 修稿时间： | 9/8/2008 12:00:00 AM |
Economic Analysis Model and Application to Iron Gangue Utilization |
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| CHEN Jiabin,JIA Wenlong and FAN Jitao.Economic Analysis Model and Application to Iron Gangue Utilization[J].Resources Science,2009,31(1):152-156. |
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| Authors: | CHEN Jiabin JIA Wenlong and FAN Jitao |
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| Abstract: | Due to the limitations of mineral processing technology and techniques of mill operation, along with other factors, most mining enterprises have operated under a low returns-ratio of iron ore resources for a long time, and especially before the late 1970s. Thus, a great deal of iron gangue exists in China. Due to scientific and technological progress, the technology and equipment problems which stymied the recycling and reuse of iron gangue have mostly been solved. With the price of extracted iron ore rising strongly, the circumstances have been created for promoting the exploitation and utilization of iron gangue ore resources. When the price of iron ore is high, there is more economic value and feasibility to the exploitation and utilization of iron gangue. This paper outlines a model to evaluate the economic value of iron gangue exploitation and utilization, based on the theory used to calculate the economic grade of deposits, and processed by appropriate analogy and quantitative methods. We collected operating parameters of mining enterprises, and used these to forecast the future trends of extracted iron ore. On this basis, we show that 7% is the critical grade of iron-gangue ore for recycling and reuse. When the grade is higher than 7%, it has the necessary economic value for exploitation, and when the grade is lower than 7%, the iron-gangue ore is not worth exploiting. When the grade of iron-gangue ore is lower than 7%, and exploitation is forced, a huge amount of waste is created. Finally, this paper makes two policy recommendations. One is that when enterprises plan to exploit iron-gangue ore of grade higher than 7%, the government should provide tax incentives. Also, banks should give 50% lower or even 0% interest rates on loans to investors that will use the funds for basic construction related to the exploitation of iron-gangue ore. |
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| Keywords: | Iron ore Gangue Critical grade Price |
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