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58.37%,与预测值较接近(见表4).这证明了利用田口试验方法对煅烧参数进行优化设计是有效的,在实际煅烧中产物活性具有较好的重现性. 表3 煅烧试验安排及结果 Table 3 Arrangements and results of calcination experiments 方差分析可以计算出各因子对活性的贡献率[15],从而判断各因子对产物水化活性的影响大小.由表4... during calcination of magnesite[J]. Journal of Chinese Ceramics Society, 1989, 17(1): 64-69. [4] 崔 鑫, 邓 敏. 煅烧制度对MgO活性的影响[J].南京工业大学学报(自然科学版), 2008, 30(4): 52-55. CUI Xin, DENG Min. Effects......
Microstructure,magnetic properties of hexagonal barium ferrite powder based on calcination temperature and holding timeSi-Yun Shen1,Hui Zheng1,Peng Zheng1,Qiong Wu2,Jiang-Xia Deng1,Zhi-Hua...="ChDivSummary">In this paper,single-phase and fine-grain hexagonal barium ferrite powder was prepared based on the optimal calcination condition.The influence of calcination conditions including temperature......
Suspension calcination and alkali leaching of low-grade high-sulfur bauxite:Desulfurization, mineralogical evolution and desilicationHong-fei Wu1,2,Jun-qi Li1,2,Chao-yi Chen1,2,Fei-long Xia1,2,Zhen... 要:To enable the utilization of low-grade and high-sulfur bauxite, the suspension calcination was used to remove the sulfur and the activate silica minerals......
Influence of calcination temperature on selective catalytic reduction of NOx with NH3 over CeO2-ZrO2-WO3 catalyst李军燕1,宋忠贤1,宁平1,张秋林1,刘昕1,李昊1,黄真真21. Faculty of Environmental Science and Engineering... for the selective catalytic reduction(SCR) of NO with NH3 were prepared by hydrothermal method. The influence of calcination temperature on the catalytic activity, microstructure, surface acidity and redox......
Influence of calcination temperature on selective catalytic reduction of NOx with NH3 over CeO2-ZrO2-WO3 catalyst李军燕1,宋忠贤1,宁平1,张秋林1,刘昕1,李昊1,黄真真21. Faculty of Environmental Science and Engineering... for the selective catalytic reduction(SCR) of NO with NH3 were prepared by hydrothermal method. The influence of calcination temperature on the catalytic activity, microstructure, surface acidity and redox......
Kinetic of Dissolved Phosphorus from Calcination Products of Mixed Rare Earth Minerals边雪,吴文远,杨眉,孙树臣,涂赣峰摘 要:The products of mixed rare earth minerals containing monazite and bastnaesite calcined by CaO-NaCl-CaCl2 contained calcium phosphate and phosphorite. In this paper, HCl-H3cit solution was used to wash the calcination products, and the kinetic......
Influence of Calcination on the Physical Characteristics and Nitrogen Removal Performance of Clinoptilolites林海,JIN Xin,董颖博,HUO Hanxin,LIU QuanliSchool of Civil and Environmental Engineering... of natural clinoptilolites were investigated. The experimental results show that the optimal modified conditions include a calcination temperature at 400 ℃, a roasting time of 0.5 h, and furnace......
Effects of precoating and calcination on microstructure of 3D silica fiber reinforced silicon nitride based composites QI Gong-jin(齐共金), ZHANG Chang-rui(张长瑞), HU Hai-feng(胡海峰) State Key.... The effects of precoating and high temperature calcination on the microstructures of the composites were investigated by scanning electron microscopy. For the composite without a precoating, the fracture......
Influence of acid leaching and calcination on iron removal of coal kaolinPei-wang Zhu,Wei-qiang Zeng,Xiu-lin Xu,Le-ming Cheng,Xiao Jiang,Zheng-lun ShiState Key Laboratory of Clean Energy Utilization,Zhejiang University摘 要:Calcination and acid leaching of coal kaolin were studied to determine an effective and economical preparation method of calcined......
, and the arsenite removal efficiency was also analyzed. The results show that the best calcination condition is that the pre-heat temperature is 180 ℃, pre-heat time is 20 min, calcination temperature is 350 ℃ and calcination time is 120 min. Calcination temperature is the main factor impacting arsenic removal. The higher calcination temperature leads to the more hematite generated in the granular adsorbent......
