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REE Geochemistry of Moderate-and High-Sulfur Coals from North Shanxi,China
Contents of the rare-earth elements(REE) in two coal seams from North Shanxi Province,China,were determined using the instrumental neutron activation method.Based on the REE distribution tpatterns,and correlation analysis and cluster analysis,the main conclusions were drawn as follows.The REE conten...
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Published in: | Acta geochimica 2003, Vol.22 (2), p.123-132 |
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description | Contents of the rare-earth elements(REE) in two coal seams from North Shanxi Province,China,were determined using the instrumental neutron activation method.Based on the REE distribution tpatterns,and correlation analysis and cluster analysis,the main conclusions were drawn as follows.The REE contents are controlled mainly by the coal-forming environments,but might be affected by acidic solution Jeaching after peat sedimentation.The REE distribution patterns should be nearly the same in the sublayers of the same coal seam,and the occurrence of abnormal patterns might indicate the geological effect during post-sedimentation.The REE in coals are present mainly in the inorganic phase,and might be derived mainly from terrigenous detrital minerals.Some harmful elements,such as V,P,Mo,Cr,Cu,Mo,Th and Cd,might have cleaning potential during processing and dressing by washing because they are associated with REE. |
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distribution tpatterns,and correlation analysis and cluster analysis,the main conclusions were drawn as follows.The REE contents are controlled mainly by the coal-forming environments,but might be affected by acidic solution Jeaching after peat sedimentation.The REE distribution patterns should be nearly the same in the sublayers of the same coal seam,and the occurrence of abnormal patterns might indicate the geological effect during post-sedimentation.The REE in coals are present mainly in the inorganic phase,and might be derived mainly from terrigenous detrital minerals.Some harmful elements,such as V,P,Mo,Cr,Cu,Mo,Th and Cd,might have cleaning potential during processing and dressing by washing because they are associated with REE.</description><subject>Chromium</subject><subject>Cleaning</subject><subject>Cluster analysis</subject><subject>Coal</subject><subject>Copper</subject><subject>Correlation analysis</subject><subject>Distribution</subject><subject>Distribution 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subjects | Chromium Cleaning Cluster analysis Coal Copper Correlation analysis Distribution Distribution patterns Geochemistry Leaching Molybdenum Neutron activation analysis Peat Rare earth elements Sedimentation Sulfur Sulphur Trace elements 中子活化法 形成环境 稀土元素地球化学 高硫煤 |
title | REE Geochemistry of Moderate-and High-Sulfur Coals from North Shanxi,China |
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