从地球化学角度看“核用硼矿”

The ‘Nuclear Boron Ore' Viewed from the Angle of Geochemistry

国内核用硼需求日益增大,面对严峻形势,部分企业提出西藏阿里地区发现"核用硼矿"。针对"核用硼矿"的提出及其意义,本文依据已取得的丰富的硼同位素地球化学研究成果,从地球科学角度入手解析我国硼矿同位素特征,通过将硼同位素地球化学参数换算为核用硼的硼-10丰度指标,进而对全球主要硼矿硼-10丰度特征进行分析。在世界硼-10资源总体认识的基础上,我们发现"核用硼矿"概念的错误根源,即其借用同位素地球化学指标的相对丰度概念对硼矿中硼-10的绝对丰度状况进行评价。本文认为,面对日益增大的核用硼需求,研发高效低耗环保的硼同位素分离工艺才是解决问题的关键,而非寻找异常富集10B的"核用硼矿"床。

Under the severe condition of increasing domestic demand for nuclear boron,some enterprises claimed that a“nuclear boron ore”was found in Ali,west Tibet.In view of the proposal and significance of this claim,the present paper gives a review of the characteristics of abundance-10B in major boron ore deposits in the world.Based on a comparative analysis of boron isotopes of the boron ore deposits in China,the authors converted the boron isotopic geochemical parameter into abundance index of 10B in nuclear boron.On the basis of the general view of the worldwide 10B resources,the authors hold that“nuclear boron ore”is a wrong concept,because the absolute abundance of 10B is evaluated by the relative abundance of boron isotopic geochemical parameter.It is therefore proposed that the key to the needs of nuclear boron lies in developing 10B isotope separation techniques with high efficiency,low consumption and environmental protection.