Overview
FrançaisABSTRACT
The boron is a non metallic semiconductor element which mainly coming from evaporite deposits. Also present in brines associated with volcanic activity, this element exists in enormous quantities compared with production and demand. The usage of boron and its compounds are nonetheless numerous, notably in fiber glasses, textile fibers, borosilicate glasses, flame retardants, enamels, as well as in the metallurgy, agricultural, medical, nuclear and aerospace sector. Indeed, there are only few possible substitutes available for boron and its compounds. the treatment of the crude ore is essentially chemical, notably through solvation and the clean products are sodium tetraborate and boric acid.
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Read the articleAUTHORS
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Pierre BLAZY: Honorary Professor - Former Director of the Ecole Nationale Supérieure de Géologie de Nancy (ENSG)
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El-Aïd JDID: Doctor of Science - Research engineer at the Environment and Mineralurgy Laboratory (LEM) - UMR 7569, Nancy University, CNRS (ENSG-INPL)
INTRODUCTION
Boron is largely derived from extensive evaporite deposits. It is also present in brines associated with volcanic activity, which have been enriched by solar evaporation in closed natural basins. The world's boron reserves are enormous in relation to production and demand.
Boron and its compounds are used in a wide range of applications, including glass fibers for insulation, textile fibers, borosilicate glass, soaps and detergents, flame retardants, ceramic enamels and glazes, metallurgy, agriculture, medicine, nuclear power, aerospace...
Raw ore processing is essentially chemical, and the purified products are sodium tetraborate and boric acid.
Prices are influenced by competition between two major producing countries, the United States and Turkey.
There are only a small number of possible substitutes for boron and its compounds. Recycling is non-existent due to essentially dispersive uses and the moderate prices of borates and boric acid.
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Boron
Bibliography
Websites
Industrial Minerals http://www.indmin.com
World Metals and Minerals Review. British geological Survey http://www.bgs.ac.uk
United States Geological Survey http://www.usgs.gov
...Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Fiber manufacturers
Owens Corning (Toledo, Ohio) http://www.owenscorning.com
PPG Fiber Glass (Pittsburgh, Pensylvania) http://www.ppg.com
Johns Manville Corp (Denver,...
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