Phosphate ore beneficiation via detennination of phosphorus-to-silica ratios by Laser Induced Breakdown Spectroscopy

被引：24

作者：

Asimellis, George ^{[1
]}

Giannoudakos, Aggelos

Kompitsas, Michael

机构：

[1] Aristotle Univ Thessaloniki, Fac Phys, Thessaloniki 54124, Greece

[2] Natl Tech Univ Athens, Sch Chem Engn, Athens 15780, Greece

[3] Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2006年 / 61卷 / 12期

关键词：

laser-induced breakdown spectroscopy; phosphorus detection; phosphate mine beneficiation;

D O I：

10.1016/j.sab.2006.10.011

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

We report development and application of an in-situ applicable method to determine phosphate ore rock quality based on Laser-Induced Breakdown Spectroscopy (LIBS). This is an economically viable method for real-time evaluation of ore phosphate rocks in order to separate high-silica pebbles prior to deep beneficiation. This is achieved by monitoring relative emission line intensities from key probe elements via single laser ablation shots: the ratio of the phosphorous to silica line intensities (P/Si ratio) provides a simple and reliable indicator of ore rock quality. This is a unique LIBS application where no other current analytical spectroscopic method (ICP or XRF) can be applied. Method development is discussed, and results with actual ore samples are presented. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1253 / 1259

页数：7

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