对《固体矿产资源/储量分类》国家标准的修改建议

Suggestions for the Amendments to National Standards of "Solid Mineral Resource/Reserve Classification"

《固体矿产资源/储量分类》国家标准在储量/资源量按经济意义的分类方面存在的问题主要是分类定义不清晰,界定指标与方法不明确。鉴于难以设置区分边际经济和次边际经济两类储量/资源量的指标,建议合并为边际经济资源量,分类总数减少为3大类,13小类。经济储量的具体指标是:内部收益率大于、至少等于行业基准内部收益率,净现值大于、至少等于0,且通过兼顾经济效益和资源回收效益的多目标决策,综合效益达最大。建议边界品位和工业品位指标应主要用方案法确定;限于界定内蕴经济资源量时,才可采用价格法确定品位指标。

The paper analyses the problems involved in 'Solid Mineral Resources/Reserve Classification',and then it is suggested that marginal economic and submarginal economic reserve/resources should be merged into marginal economic resources,because it is difficult to set up the target to distinguish them;the total classification should decrease to three major classes and thirteen subclasses.The paper goes on to look at the specific targets of economic reserve: internal rate of return is great than,at least,or equals to the standard of the industrial internal rate of return;while net present value is greater than,at least,or equals to zero;through multiple target decisions that giving consideration to both economic benefits and benefits of resource recovery,overall efficiency indicator is up to the maximization,It is also suggested that the target of cutoff grade and production-grade should be mainly determined by making scheme;using price method to determine the grade target only limiting to the definition of connotative economic resources.