The mineralogical features of the oxidation-reduction of graphite deposit in pingdu, Shandong province were studied by field search, polarization microscope, X-ray diffraction (XRD) and SEM. The results show that, the...The mineralogical features of the oxidation-reduction of graphite deposit in pingdu, Shandong province were studied by field search, polarization microscope, X-ray diffraction (XRD) and SEM. The results show that, the major rocks of the reduction graphite zone are graphite-quartz anorthosite, gabbro. The major rocks of the oxidation graphite zone are marble with graphite, biotite granite, monzogranite. The main minerals of the reduction zone are plagioclase, pyroxene, quartz, pyrite. The graphite is aphanitic graphite appearing as dense massive, layered, spherical aggregates. The main minerals of the oxidation zone are calcite, quartz, K-feldspar, biotite, amphibole, chlorite. The graphite is flake graphite uniformly dispersed in the loose, and strongly erosion rocks. A large number of rocks in the area have been suffered chloritization, regional metamorphism, indicating that the formation of the graphite deposit should be related with gabbro melting. The carbon source in the lower part was taken into the mine, and then experienced regional metamorphism.展开更多
The template carbonization method was utilized for the production of mesoporous carbons using attapulgite as a template and sucrose as carbon precursor. Sucrose was polymerized and carbonized in the tubes of natural a...The template carbonization method was utilized for the production of mesoporous carbons using attapulgite as a template and sucrose as carbon precursor. Sucrose was polymerized and carbonized in the tubes of natural attapulgite using a sulfuric acid catalyst. The structure of the template and carbons were investigated by powder X-ray diffraction, transmission electron microscopy, and Nitrogen adsorption analysis techniques. At the micrometer level, the carbon material templated with the natural attapulgite had the similar morphology. Nitrogen adsorption analysis showed that the obtained porous carbons possess a wide pore size distribution and a large pore volume, especially in the range of mesopores.展开更多
文摘The mineralogical features of the oxidation-reduction of graphite deposit in pingdu, Shandong province were studied by field search, polarization microscope, X-ray diffraction (XRD) and SEM. The results show that, the major rocks of the reduction graphite zone are graphite-quartz anorthosite, gabbro. The major rocks of the oxidation graphite zone are marble with graphite, biotite granite, monzogranite. The main minerals of the reduction zone are plagioclase, pyroxene, quartz, pyrite. The graphite is aphanitic graphite appearing as dense massive, layered, spherical aggregates. The main minerals of the oxidation zone are calcite, quartz, K-feldspar, biotite, amphibole, chlorite. The graphite is flake graphite uniformly dispersed in the loose, and strongly erosion rocks. A large number of rocks in the area have been suffered chloritization, regional metamorphism, indicating that the formation of the graphite deposit should be related with gabbro melting. The carbon source in the lower part was taken into the mine, and then experienced regional metamorphism.
文摘The template carbonization method was utilized for the production of mesoporous carbons using attapulgite as a template and sucrose as carbon precursor. Sucrose was polymerized and carbonized in the tubes of natural attapulgite using a sulfuric acid catalyst. The structure of the template and carbons were investigated by powder X-ray diffraction, transmission electron microscopy, and Nitrogen adsorption analysis techniques. At the micrometer level, the carbon material templated with the natural attapulgite had the similar morphology. Nitrogen adsorption analysis showed that the obtained porous carbons possess a wide pore size distribution and a large pore volume, especially in the range of mesopores.
