The results show that the reduction temperature and time have remarkable effect on the metallization rate of reduced iron powder. 研究结果表明,还原温度和还原时间对还原铁粉的金属化率具有显著影响。
Technique and Estimation of Using Reducing Gas from Iron Ore-coal Briquette to Produce Direct Reduced Iron 铁矿煤球团内生还原气生产直接还原铁工艺及估算
Several utilization ways of coke-oven gas, such as its usage as fuel, material in the production of chemical product, hydrogen generation and the direct reduced iron, were summarized. 对剩余焦炉煤气作燃气、生产化工产品、生产纯氢及生产直接还原铁等利用途径进行了综述。
Characteristic of direct reduced iron and its present status in service in electric arc steelmaking Changcheng Company had been summarized, its effect has been analyzed further. 概述了直接还原铁的特性及在我厂电弧炉炼钢中的使用情况,并将其效果作了进一步分析。
The process and production mechanism of reduced iron powder from mill scale and iron ore was described. Finally, it was compared the characters of different grades of reduced iron powder. 系统地介绍了由铁鳞制取还原铁粉的工艺过程,原理,及各种牌号还原铁粉的性能对比。
Determination of metallic iron in direct reduced iron by potassium dichromate titration after decomposition of sample by ferric chloride 三氯化铁分解重铬酸钾滴定法测定直接还原铁中金属铁
Estimation of Using Reducing Gas from Garbage to Produce Direct Reduced Iron 垃圾制燃气生产直接还原铁工艺估算
Low-dose NaFeEDTA reduced iron deficiency but not anaemia. 低剂量的乙二胺四乙酸铁钠可以减轻缺铁但是对贫血无效。
The reduction of solid ferric oxide is a necessary step for producing reduced iron powder. 固态条件下氧化铁的还原是制备还原铁粉的必要步骤。
Reduced iron powders for powder metallurgy GB/T4136-1994粉末冶金用还原铁粉
The effects of type and dosage of reducing agent, flux type and dosage, baking temperature, baking time factors on the direct reduced iron products were investigated. 研究了还原剂种类与用量、助熔剂种类与用量、焙烧温度、焙烧时间等因素对还原铁产品的影响。
Acid-insoluble substances in reduced iron powder from iron concentrates 铁精矿还原铁粉中酸不溶物的研究
Experimental Study on Carbon Reduction Process in Preparation of Reduced Iron Powder Using Iron Ore 铁矿石制备还原铁粉的碳还原过程的实验研究
Methods 20 health child-bearing-age women were randomly divided into two groups. With ferrous sulfate as control, the utilization of reduced iron was measured using dual stable isotopes. 方法以20名健康育龄妇女为研究对象,随机分为两组,以硫酸亚铁为对照,采用目前最准确的双标稳定性同位素技术,研究还原铁粉的吸收和利用。
Based on reduced iron powder, this brake-block forms a composite of heterogeneous structure which contains certain quantity of frictional and lubricational elements. 该刹车片是以还原铁粉为基础,参与一定数量的摩擦、润滑组元的多相结构复合材料。
Its main materials are reduced iron powder with grain size of 40-80 mesh and purity over 97%, and commercial hydrochloric acid with HCl 27-34% and containing no such impurities as Hg, Pb, Cr and Cu. 此法所用原料为粒度在40~80目,纯度在97%以上的还原铁粉和含量在27~34%且不含Hg、Pb、Cr、Cu等杂质的工业盐酸。
The production process and semiproduct specifications in the corporation have been established based on the analysis of reduced iron powder production technique development in the world. 在分析研究国内外还原铁粉生产技术发展的基础上确定了本公司的生产工艺环节和半成品技术指标。
Present Status of Development and Prospect of Production of Reduced Iron Powder Using Ultra-pure Iron Concentrate Powder in China 超纯铁精矿粉生产还原铁粉在我国的发展现状及前景
A new way for comprehensive utilization of copperas was put forward. Reduced iron powder was obtained by converting copperas to ferrous carbonate with ( NH_4)_2CO_3, followed by reduction roasting with anthracite as reducer and CaCO_3 as additive. 提出了一种新的绿矾综合利用的途径,即绿矾经碳酸盐转化,然后采用无烟煤作还原剂,CaCO3为添加剂,进行高温还原焙烧制取还原铁粉。
Study on the Medium Characteristics of Waste Reduced Iron Powder in the Heavy-medium Separation of Andalusite 还原铁废粉作红柱石重介质分选的介质特性研究
It was described to prepare and apply an agent for heavy metals containing wastewater treatment with pyrite and reduced iron powder in this paper. 描述了用黄铁矿和还原铁粉为原料制备重金属废水净化剂的方法,以及该净化剂处理重金属废水的应用方法。
Advance in Direct Reduced Iron Production with High Quality Iron Concentrates 优质铁精矿生产直接还原铁的进展
The direct reduced iron is a high-quality material after coldly bonding, and the utilizable value of high-purity iron powder is higher. 直接还原铁粉经冷固结成型后即为电炉炼钢的优质原料,而高纯铁粉的利用价值更高。
Direct reduced iron ( DRI) is considered to be a kind of high quailty steelmaking raw materials because of its high iron content, low impurities and stable'composition. 直接还原铁含铁量高、化学成分稳定、杂质含量低,是一种优质炼钢原料。
Production of direct reduced iron and high-purity iron powder from low-grade iron ore 用低品位铁矿石生产直接还原铁和高纯铁粉的研究
A experimental study on using direct reduced iron ( DRI) to produce desulphurization 用海绵铁制备脱硫剂的试验研究
The contents of magnesium and calcium in the deep reduction iron powders used washery coal as reduction reagent were low comparatively and contents of silicon and aluminum met demand of direct reduced iron. 以洗精煤为还原剂的深度还原铁粉中钙、镁的含量相对较低,硅和铝含量符合直接还原铁产品的要求。
With the increase of quantity of the reduced iron powder, the density of sintered alloy increases and then decreases and the intensity and strength decreases slightly. 随着还原Fe粉添加量的增加,烧结合金的密度先增加后降低,硬度和强度略有降低。