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 patterns, and correlation ...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 patterns, 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 leaching 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.展开更多
SHANXI Province, China’s key energy and heavy chemical industry base, boasts rich coal resources. Apart from fulfilling domestic supply requirements, and exporting to European and Asian countries, under the guidance ...SHANXI Province, China’s key energy and heavy chemical industry base, boasts rich coal resources. Apart from fulfilling domestic supply requirements, and exporting to European and Asian countries, under the guidance of the provincial Party Committee and provincial government, Shanxi also attaches importance to highly processed coal products.Bestowed generously with nature’s bounty, Lucheng City, in southeastern Shanxi, has over展开更多
According to the present situation of ecological reconstruction of coal mines（ERCM）in Shanxi,and considering the technical requirements of Guidelines for Mine Ecological Environment Protection and Recovery Managemen...According to the present situation of ecological reconstruction of coal mines（ERCM）in Shanxi,and considering the technical requirements of Guidelines for Mine Ecological Environment Protection and Recovery Management Programming,new issues faced by ERCM have been systematically analyzed,including the investigation of ecological destruction status,classification of damaged ecological environment,ecological reconstruction（ER）sustainability,driving force for ER,and so on.On this basis,suggestions for ERCM and advices for the ERCM programming are proposed.展开更多
文摘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 patterns, 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 leaching 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.
文摘SHANXI Province, China’s key energy and heavy chemical industry base, boasts rich coal resources. Apart from fulfilling domestic supply requirements, and exporting to European and Asian countries, under the guidance of the provincial Party Committee and provincial government, Shanxi also attaches importance to highly processed coal products.Bestowed generously with nature’s bounty, Lucheng City, in southeastern Shanxi, has over
文摘According to the present situation of ecological reconstruction of coal mines（ERCM）in Shanxi,and considering the technical requirements of Guidelines for Mine Ecological Environment Protection and Recovery Management Programming,new issues faced by ERCM have been systematically analyzed,including the investigation of ecological destruction status,classification of damaged ecological environment,ecological reconstruction（ER）sustainability,driving force for ER,and so on.On this basis,suggestions for ERCM and advices for the ERCM programming are proposed.
