中国发展非高炉炼铁的现状及展望

非高炉炼铁是钢铁工业发展的前沿技术之一。目前,直接还原已成为世界钢铁工业不可缺少的组成部分。熔融还原虽实现工业化生产的环境优越性得以公认,但其低能耗、低成本等优点还有待于实践证实。发展直接还原铁生产弥补废钢的短缺是中国钢铁工业、装备制造业发展的急需。以国内技术为基础,利用国内铁矿资源,以煤制气竖炉为主导工艺是中国发展直接还原铁生产的主要方向。加强对国外熔融还原技术发展的跟踪,强化国内熔融还原技术的开发力度,尤其是消化COREX技术以及实现其装备的国产化是中国熔融还原发展的重要方向。     

90年代的非高炉炼铁（待续）

论述了导致非高炉炼铁技术发展的原因，简介了９０年代蓬勃兴起的，各种有发展前途的直接还原技术和熔融还原技术，本部分主要介绍Ａｒｅｘ，Ｉｒｏｎ Ｃａｒｂｉｄｅ，Ｆａｓｔｍｅｔ等直接还原技术及其优缺点。     

90年代的非高炉炼铁（续完）

继介绍直接还原技术后，本部分主要综述ＣＯＲＥＸ ＤＩＯＳ、ＨＩｓｍｅｌｔ及ＣＣＦ等有发展前途的熔融还原炼铁技术及比较了彼此的优缺点。     

新日铁炼铁专利现状及对国内钢厂的启示

根据《Ｗｏｒｌｄ Ｐａｔｅｎｔｓ Ｉｎｄｅｘ》,系统地查阅了新日铁公司１９８７～１９９６年的炼铁专利,分析了烧线、高炉炼铁和非高炉炼铁技术开发的现状,为国内企业进行科学研究、技术开发与创新、知识产权保护和专利发展战略提供参考和借鉴。     

熔融还原炼铁新工艺

<正> 由于世界上炼焦煤日益枯竭,炼焦过程环境污染严重,且各国又面临大批焦炉老化,因此,许多冶金工作者纷纷寻找不用焦碳,甚至铁矿粉也不经烧结工序的更能节约能源和投资的炼铁新工艺。于是近30年,先后出现了直接还原生产固态海绵铁和熔融还原炼铁等工艺。但直接还原海绵铁受到天然气、天然富矿资源以及生产成本高的限制,所以,目前每年世界产海绵铁     

Auslron炼铁新技术

Auslron技术是一种采用低成本气煤作燃料和还原剂，使用粉矿、块矿或粗粒矿生产铁水，并从还原炉回收能源的熔融还原工艺。介绍了该工艺的发展概况，操作原理和中间试验结果，总结了该工艺的优点。     

COREX炼铁新工艺浅析

简述了Gorex炼铁技术的10年发展史，重点论述分析了Corex工艺对铁矿石、煤炭等原料的要求，竖炉还原过程的料柱透气性和还原速率，熔化气化炉冶炼中煤炭高温气化、高温煤气处理、固定床技术和粉尘返吹技术，同时分析了能源消耗和对环境的影响，并与传统高炉炼铁流程作了比较分析。     

浅谈Corex炼铁法的环境效益

简述了Ｃｏｒｅｘ熔融还原的工艺的生产流程和特点，对Ｃｏｒｅｘ炼铁法和高炉炼铁工艺在环境污染方面进行了比较，Ｃｏｒｅｘ工艺显示了巨大的环保优越性，并依实例对其环境效益作了分析和探讨。     

我国发展非高炉炼铁技术前景光明

大力开发和发展非高炉炼铁技术以代替高炉炼铁是近20年世界钢铁技术发展的主要方向和前沿技术之一,各国钢铁业界纷纷开发出各类直接还原铁技术和熔融还原技术,我国在这类技术的开发和应用中也取得了很多成果。最近从中国金属学会2008年非高炉炼铁年会中发表的论文和专家的发言中,大致勾勒出中国在非高炉炼铁技术的开发和应用方面的发展轮廊。     

熔融还原炼铁的专利技术现状

文章介绍了近20年来在中国申请的熔融还原炼铁专利的状况,对目前有效的熔融还原炼铁专利进行了技术分析,指出了国外专利申请人在熔融还原炼铁专利技术方面的发展重点和保护策略,并对国内申请人如何成功地进行专利申请和研发提出了建议:（1）"预还原+终还原"的二步法熔融还原炼铁中的预还原和终还原之间是相互影响的,因此更应当以整个工艺作为出发点,对预还原步骤和终还原步骤进行协调性的改进;（2）国内专利申请人应汲取国外申请人的成功经验,以某一技术作为基础,有明确的研发方向,形成鲜明的专利保护的辐射圈;（3）通过合作研发共同申请专利,过渡到自主开发的经验仍然可供国内专利申请人借鉴。     

A STUDY ON THE BEHAVIOUR OF GALLIUM IN THE IRONMAKING PROCESS

Gallium is a valuable rare metal which is mainly being used in the production of GaAs. The demand for gallium is increasing but production is limited since gallium is extracted only as a by-product of bauxite processing. On the other hand coal, ironmaking coke and iron ore gangue contain traces of gallium. However little is known about the behaviour of gallium in ironmaking. The aim of the study is to clarify the distribution of gallium between hot metal, slag and top gas by means of laboratory experiments. It was found that Ga2O3 is not stable in blast furnace slags and that gallium is retained in hot metal. Vacuum distillation experiments with hot metal showed that gallium is not transferred to the gas phase. Data on the input and output of gallium at two industrial blast furnaces, as well as chemical analyses of the gallium content of several cokes are presented, too.     

INFLUENCE OF MnO ON REDUCTION OF TiO_2 IN BLAST FURNACE TYPE SLAG

A study was carried out on the formation of Ti(C,N) during smelting vanadium-bearingtitanomagnetite in blast furnace and the influence of MnO content on reduction of TiO_2 inthe slag containing high titania. The reduction of TiO_2 is restricted by MnOpredominantly atthe slag-metal interface and no more at the slag-coke one. The formation of Ti(C,N) is remarkablyrestricted by MnO in the slag when the MnO content is about 4% and the basicityfrom 0.6 to 1.2 in the slag. MnO may also retards the reduction of SiO_2 and accelerates thedesulphidation under certain condition.     

高炉型含钛炉渣中MnO对TiO_2还原的影响SCIEI

研究了高炉冶炼钒钛磁铁矿时Ti(C,N)的生成规律以及高钛渣中MnO对TiO_2的影响。结果表明,高钛渣中MnO对抑制TiO_2还原在渣-焦处作用不大,而主要在渣-铁处,渣中含MnO4％左右,碱度0.6—1.2能显著抑制Ti(C,N)的生成,(MnO)在一定条件下还能显著抑制(SiO_2)的还原,加速脱硫反应。     

A STYDT ON THE BEHAVIOUR OF GALLIUM IN THE IRONMAKING PROCESS

Gallium is a valuabie rare metal which is mainly being used in the production of GaAs,The demand for gallium is increasing but production is limited since gallium is ex-tracted only as a by-product of bauxite processing.On the other hand cool,ironmaking coke and iron ore gangue contain traces of gallium.However little is kmown about the behaviour of gallium in ironmaking.The aim of the study is to clarify the distribution of gallium between hot metal,slag and top gas by means of laboratory experiments.It was found that Ga2O3 is not stable in blast furnace slags and that gallium is retained in hot metal.Vacuum distillation experiments with hot metal showed that gallium is not transferred to thw gas phase.Data on the input and output of gallium ot two industrial blast furnaces,as well as chemical analyese of the gallium content of several cokes are presented,too.     

试论我国解放后炼铁技术路线

本文简要回顾建国以来我国炼铁技术路线的演变过程，并展望２１世纪的前景。     

环境保护对炼铁技术发展的影响

钢铁工业消耗大量能源和原材料并产生工业废料，大部分废料来自炼铁。因此，为了维持钢铁工业不断发展，新的工艺必须考虑这个地球村各处的环境法规。本文针对中国的情况，并考虑其未来的需求，评述了高炉法、电弧炉中的ＨＢＩ／ＤＲＩ法以及回转炉底／熔炼还原法等三种冶炼钢铁工艺的特点。     

高炉铁水短流程工艺在铸件生产中的应用

简要阐述了高炉铁水短流程工艺在铸铁件生产中的优势,从高炉铁水的供应、运输、熔炼及其与铸造熔炼设备的匹配详细分析了短流程铸造需注意的问题.目前来说,期望通过短流程工艺获得良好的经济效益和环境效益,铸造企业还面临着不少问题,其中铁水成本、运输以及合理的熔炼工艺是最为关键的因素.     

钒钛磁铁矿熔融还原渣系中钒还原的热力学规律

在对钒钛磁铁矿熔融还原动力学研究基础上,研究了熔融还原渣系中钒还原的热力学研究表明,在CaO-SiO_2-Al_2O_3-MgO-V_2O_5渣系中钒还原达到动态平衡的时间为6h,渣系CaO/SiO_2对平衡时间影响不大,温度提高,平衡时间缩短渣与铁浴比为1/2,CaO/SiO_2为0.8,温度为1773K时,钒还原最大平衡分配比为32.4,最大回收率为96.1%。     

钒钛磁铁矿熔融还原速度研究

用铁浴法对钒钛磁铁矿在高温熔态下还原动力学进行了研究。结果表明:钒钛磁铁矿熔融还原速度有三个高峰期,而普通海南矿则只有一个高峰期,在相同条件下,钒钛磁铁矿熔融还原速度低于海南矿的还原速度;铁浴量增加,还原速度明显增高,提出了钒钛磁铁矿在有铁浴和无铁浴条件下熔融还原反应速度方程。     

Thermodynamic modeling of lead blast furnace

A thermodynamic model was developed to predict the distribution behavior of Cu, Fe, S, O, Pb, Zn,As, and the heat balance in a lead blast furnace. The modeling results are validated by the plant data of a lead smelter in Kazakhstan. The model can be used to predict any set of controllable process parameters such as feed composition, smelting temperature, degree of oxygen enrichment and volume of oxygen-enriched air. The effects of the blast air, industrial oxygen, and coke charge on the distribution of Cu, Fe, S, O, Ph, Zn, As, the heat balance, and the lead loss in slag, were presented and discussed.