A Life Cycle Assessment of Silica Sand: Comparing the Beneficiation Processes
A Life Cycle Assessment of Silica Sand: Comparing the Beneficiation Processes
复制标题
硅砂的生命周期评估：选矿工艺比较
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Grbeš
中科院分区：
文献类型：
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作者：
A. Grbeš
硅砂或石英砂是一种具有广泛应用的矿物资源;玻璃工业，建筑和铸造是其最常见的例子。克罗地亚共和国拥有4000万吨硅砂储量，并有着长期的露天开采和加工传统。2006年至2011年期间，克罗地亚的原硅砂平均年产量为15万吨。本文介绍了三种不同类型的浮选技术：电选、浮选和重选的摇篮到大门的生命周期评价结果。本研究的目的是确定和量化硅砂生产的环境影响，了解不同加工方法的影响范围，以及确定主要因素和进一步工艺设计开发的重点。
Silica sand or quartz sand is a mineral resource with a wide variety of application; glass industry, construction and foundry are the most common examples thereof. The Republic of Croatia has reserves of 40 million tons of silica sand and a long tradition of surface mining and processing. The average annual production of raw silica sand in Croatia in the period from 2006 to 2011 amounted to 150 thousand tons. This paper presents cradle to gate LCA results of three different types of beneficiation techniques: electrostatic separation; flotation; gravity concentration. The aim of this research is to identify and quantify the environmental impacts of the silica sand production, to learn the range of the impacts for different processing methods, as well as to identify the major contributors and focus for further process design development.