Project(51274243) supported by the National Natural Science Foundation of China
Pyrochlore-type tungsten oxide (PTO), WO3·0.5H2O, is an emerging material with very wide potential applications. The influences of iron valences and the additive amount of ferrous ion on tungsten crystallization rati...
Project(51274243)supported by the National Natural Science Foundation of China;Project(2015CX001)supported by the Innovation-driven Plan of Central South University,China
The reaction behaviors of silicate species in (NH4)2WO4-(NH4)2CO3-NH3-H2O system are crucial to developing a greenmanufacture technique for ammonium paratungstate. In order to efficiently remove silicon from the s...
financially supported by the National Natural Science Foundation of China (No. 51274243);the Project of Innovation-Driven Plan in Central South University, China (No. 2015CX001)
Pyrochlore-type WO3 powder was synthesized via hydrothermal method using aqueous sodium tungstate solution and oxalic acid as raw materials. The as-prepared powder was made into a soliquoid, from which films were made...
Project(51274243) supported by the National Natural Science Foundation of China
The effects of temperature, ammonia concentration and ammonium carbonate concentration on the dissolving behavior of ammonium paratungstate were studied in(NH4)2CO3-NH3?H2O-H2O system. The results show that rising ...
Project(51274243)supported by the National Natural Science Foundation of China;Project(2015CX001)supported by the Innovation-driven Plan in Central South University,China
Oxidizing roasting of molybdenite with lime can significantly reduce SO2pollution compared with the traditional roastingwithout lime.However,the calcine is subsequently leached by sulfuric acid,resulting in serious eq...
Project(51274243)supported by the National Natural Science Foundation of China
Pure compounds and kaolin were employed to investigate the reaction behavior of ferric oxide in thetrinarysystem Fe2O3?SiO2?Al2O3 during reductive sintering process. The thermodynamic analyses and reductive sintering ...
Project(51274243)supported by the National Natural Science Foundation of China
It is necessary to clarify the influence of thermal history on the conversion of aluminate species in sodium aluminate solution in order to optimize Bayer alumina production. The interconversion of various solution sp...