附碳（CA）澳矿流态化预还原的热力学性质

对附碳澳矿流态化预还原过程进行了实验，通过回归分析，找出影响还原度的主要因素．阐述了附着碳加速还原和有效防止粘结的原因．估算了流态化预还原过程实际气相成份与平衡气相成份，为确定流态化预还原工艺流程和工艺多数提供了依据．     

Dephosphorisation of high phosphorus oolitic hematite by carbon composite pre-reduction and fast melting separation

High phosphorus oolitic hematite deposit is a kind of refractory iron ore resource of huge amount. At present, it is difficult to be utilised by traditional physical and chemical technology efficiently and economically. A novel process for utilisation of the high phosphorus oolitic hematite based on carbon composite pre-reduction and fast melting separation has been put forward in the paper. High grade pig iron nugget of low phosphorus could be obtained in the present research. The influence of experimental conditions, such as pre-reduction temperature, C/O (molar ratio) and basicity, on the dephosphorisation behaviours was studied in detail. The thermodynamic basis and reduction and melting separation process were also analysed. The phosphorus content in the iron nugget decreased with the increasing of basicity and increased with the increasing of C/O. The optimum parameters were pre-reduction temperature of 1200°C for 30?min, C/O of 0.95 and basicity of 1.7. After melting separation of molten iron and slag at 1400°C for 10?min, the iron nugget containing 0.02?wt-% [P] would be obtained. The dephosphorisation degree and iron yield in the form of iron nugget were 97.5% and 96.9% respectively. The iron nugget may be directly used as the raw materials of steelmaking from the view point of its high grade.     

经附碳处理的赤铁精矿粉在熔融还原、流态化预还原过程中的附碳（CA）效应

本文通过对经附碳处理的赤铁精矿粉在预还原时附碳（ＣＡ）效应的研究，提出了附碳的温度效应、催化效应及物理效应．分析了压力对各种效应的影响，并探讨了这些效应的机理．     

“析碳─流化─铁浴”熔融还原（ZKS法）中物料、热量平衡及能量分析

本文通过附碳矿粉流态化预还原和铁浴终还原二步熔融还原（ＺＫＳ法）的物料平衡、热量平衡计算以及能量分析，论证了该二步法炼铁工艺的可行性，为该法的工业化提供了理论依据．     

流态化预还原矿粉的粘结与预防

采用正交设计法进行了流化床还原试验。极差分析表明还原温度是影响矿粉粘结的最主要因素。在同样还原条件下对不同的添加物和矿粉附碳防粘作用进行了研究。试验表明矿粉附碳和矿粉中添加煤粉防粘效果明显。     

微机在流态化预还原流程中的应用

本文详细介绍了微机系统在流态化预还原流程中的应用。经现场试验运行证明,该系统能对试验参数进行连续的、快速的、准确的采集和综合分析处理,保证了试验的准确性和完备性。     

熔融还原流态化预还原附碳铁精矿粉的热力学研究

对铁精矿流态化预还原过程进行了试验。通过线性回归分析发现,附着碳含量对还原度的影响最为显著,温度次之,压力和线速具有同等的影响,阐述了附着碳加速还原和有效防止粘结的原因。估算了流态化预还原过程实际气相成份及平衡气相成份,这为确定流态化预还原工艺流程和操作参数提供了重要依据。     

Reduction of Norwegian and Indian ilmenite with carbon monoxide and hydrogen gas blends

Synthesis gas, produced from natural gas, can be used to minimise coal consumption and carbon dioxide emissions during the processing of ilmenite. Two different ilmenite ores have been reduced with carbon monoxide and hydrogen mixtures to investigate the effects of temperature and gas composition on the final product. Thermogravimetric analysis was used to observe the reaction progress. Experimental work revealed that between 900 and 1000?°C the hydrogen content in the gas has an equally significant effect as the temperature. Statistical analysis determined that the source of the ore did not have a significant effect on the reaction rate. Armalcolite is one of the main products of pre-reduction in addition to metallic iron and rutile from these ilmenite concentrates. There is also some indication that titanium dioxide is reduced. Optical microscope images revealed that increasing amounts of hydrogen resulted in smaller more uniformly distributed metallic iron particles.     

低压甲醇催化剂的预还原-钝化-再还原的研究

介绍了低压合成甲醇催化剂(CuO-ZnO-Al_2O_3)预还原-钝化-再还原工艺的研究过程。预还原催化剂物化性能、使用寿命、催化活性和未经预还原的催化剂相同。生产上采用该工艺综合经济效益可达3％～10％。     

经附碳处理的澳矿粉在熔融还原流态化预还原过程中的动力学特征

本文通过对附碳澳矿粉预还原实验的研究，建立了还原反应的宏观速率方程，分析了反应的动力学机理．根据实验结果的回归分析，说明了影响还原度的主要因素及其影响程度的大小，并对附碳３．０％的预还原产物建立了温度效应公式和动力学模型．