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residue, a corresponding technology to prepare mangano-manganic oxide was adopted as follows: low temperature sulfating roasting tungsten residue, leaching, removal of impurities in leachate, precipitation of manganese and oxidation of manganese hydroxide. The product was analyzed by SEM and XRD. The results of roasting and leaching show that the recovery of Mn is 88.9% after roasting with 150% excess......
Effect of reduction roasting by using bio-char derived from empty fruit bunch on the magnetic properties of Malaysian iron oreNurul A.Yunus1,Mohd H.Ani1,Hamzah M.Salleh1,Rusila Z.A.Rashid1,Tomohiro... of the weak magnetic properties of Malaysian iron ore. In this study, bio-char derived from oil palm empty fruit bunch(EFB) was utilized as an energy source for reduction roasting. Mixtures of Malaysian......
表面脱碳层对H13钢热疲劳性能的影响石楠楠1,吴晓春1,周青春1(1.上海市上海大学材料科学与工程学院)摘 要:主要研究了在自约束条件下,表面脱碳层对H13钢热疲劳性能的影响.结果显示,含脱碳层试样表面开裂严重,表层硬度急剧下降,热疲劳损伤因子大大高于半脱碳和无脱碳的试样.说明脱碳造成材料表层含碳量减少,强度降低,使热疲劳时产生的交变热应力超过材料的屈服强度,引起往复塑性变形,逐渐造成损伤累积,从而导致钢的热疲劳强度下降.关键词:H13钢; 表面脱碳; 热疲劳; 热作模具钢......
为90.05%,回收率91.26%的直接还原铁产品.关键词:内配煤用量;难选铁矿石;压块;焙烧Effect of coal dosage on direct reduction roasting of refractory iron ore briquettesWEI Yuxia, SUN Tichang, KOU Jue, YU Wen, CAO Yunye(Key Laboratory... reduction roasting of refractory iron ore briquettes were investigated. Raw ore crashed to less than 4 mm was mixed with certain dosage of binder C and reductant coal for briquetting. A series of tests......
为90.05%,回收率91.26%的直接还原铁产品.关键词:内配煤用量;难选铁矿石;压块;焙烧Effect of coal dosage on direct reduction roasting of refractory iron ore briquettesWEI Yuxia, SUN Tichang, KOU Jue, YU Wen, CAO Yunye(Key Laboratory... reduction roasting of refractory iron ore briquettes were investigated. Raw ore crashed to less than 4 mm was mixed with certain dosage of binder C and reductant coal for briquetting. A series of tests......
Tin recovery from a low-grade tin middling with high Si content and low Fe content by reduction–sulfurization roasting with anthracite coalJing-cheng Wang1,2,3,Lei Li1,2,3,Yong Yu1,2,31. State Key...="ChDivSummary">A new method for separating and recovering tin from a low-grade tin middling with high Si content and low Fe content by roasting with anthracite coal was researched by studying......
220 g/L的溶出条件下,矿石中氧化铝的相对溶出率可达到93.7%. 关键词:高硫铝土矿;焙烧预处理;脱硫;溶出性能 中图分类号:TF 803.21 文献标识码:A Roasting pretreatment of high-sulfur bauxite and digestion performance of roasted ore... bauxite was pretreated in muffle furnace, rotary tube furnace and fluidized bed. The effects of roasting temperature and roasting time on the desulfurization performance and digestion rate were studied......
Kinetics of recovering germanium from lignite ash with chlorinating roasting methodsZHU Guocai WANG Jingyan CHENG Zhuo ZHAO Yuna Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 102201,China摘 要:<正>A process of recovering Ge by chlorinating masting was put forward.GeCl4 was separated and recovered from lignite ash because......
Effect of Roasting Conditions of Rich Cerium Rare Earth Carbonate on Crystallite Morphology and Polishing Ability of Ceria-Based Rare Earth Oxide吴文远,李学舜,陈杰,杨国胜,涂赣峰摘 要:roasting temperature increasing. With increasing roasting temperature, L111 would rise straightly upward, and L200 would rise straightly......
Preparation of pre-reduced pellet using pyrite cinder containingnonferrous metals with high temperature chloridizing-reduction roasting technology-Effect of CaCl2 additiveCHEN Dong(陈栋)1, ZHU De-qing... chloridizing-reduction roasting process was investigated, aiming at acquiring high strength blast furnace burden with high iron grade and low nonferrous metals content.The effects of CaCl2 dosage......