铁

Jarosite process was selected for iron removal due to the characteristics of the solution originated from the reduction leaching of manganese nodules by pyrite in chloride system.

摘 要：针对酸性氯化物中黄铁矿还原浸出锰结核的溶液成分特点，选择黄钠铁矾法进行了沉淀分离铁的研究。

DSC-TGA thermal analysis and XRD characterization results demonstrate that Fe is precipitated as Fe3O4 during alkaline decomposition of jarosite. The contents of Fe, In and Zn in decomposition residue are 38.81%, 0.23% and 12.89%, respectively. After selective leaching of In and Zn with dilute HCl solution, the iron concentrates obtained from magnetic separation can be used as raw material for iron smelting.

DSC-TGA热分析和X射线衍射分析结果表明：在NaOH分解过程中，铁矾渣中的铁主要以Fe3O4形式沉淀入渣；分解渣中Fe、In和Zn的含量分别为38.81%、0.23%和12.89%；经稀盐酸选择性浸出铟和锌后，进一步磁选富集可作为炼铁原料。

By introducing intersublattice coupling coefficient q into three-dimensional Kittle antiferroelectric model and with the aid of phenomenological theory and induced phase transition experiments, the piezoelectric and electromechanical coupling anisotropy of PZT-based materials can be explained qualitatively and quantitatively.

在三维空间的Kittle反铁电模型中引入反铁电原胞中子晶格耦合系数q，藉助于宏观唯象论和诱导相变实验，能够定性和定量地解释PZT基材料的压电和机电耦合各向异性。

The effects of lactoferrin and lactoferricin on Lactobacillus acidophilus growth were studied in this paper.

本实验主要针对乳铁蛋白和乳铁素对嗜酸乳杆菌的生长影响进行研究。

Hop off the jump or transition, turn 90 degrees, and land on the rail square with the rail directly under the center of your boot sole.

上杆的时候，确保雪板和铁杆成90度角，并且和铁杆接触的部位应该落在板底的中心位置。

Certain foods, such as orange and lime juice, boost iron absorption but tea and coffee reduce absorption.

桔子汁和酸橙汁可促进铁元素的吸收，而茶和咖啡则会抑制铁吸收。

Comparing these deviation values and the colligate error controllable limit of the ferrography technical and analysis the amount of deviation, the method of fractional precipitation is feasible in actual operation .

通过比较这些偏差值与铁谱技术的综合误差控制限度，并分析误差原因，来判定铁谱技术中磨粒分步沉积方法在实际操作中的可行性。

Through researching for CF producing characteristics of ten kinds of iron ore sintering by means of small sintering test method and microstructure analyzing method, main factors of influencing producing CF were found. Under the conditions of basic capacity being 2.0 and other conditions being identity, limonite and hematite with loose microstructure as well as high ...

为此 ，采用微型烧结试验法和矿物组成及显微结构分析法研究了 10种铁矿石烧结的铁酸钙生成特性，找出了影响铁酸钙生成的主要因素，即在碱度为 2 。0及其它条件相同的情况下，结构松散的褐铁矿、赤铁矿及较高含量的 Al2 O3和 Si O2 均有利于 SFCA的生成。

The results show that the chief mineral is diaspore (size of 5-20nm) and the iron minerals are hematite and limonite mainly, whose sizes are 0.5-3.0mm.

研究结果表明：2个样品中的铝矿物为晶体杜度细小的一水硬铝石（粒度为5~20nm）；铁矿物主要为赤铁矿和褐铁矿，铁矿物嵌布粒度相对较粗（粒度为0.5~3.0mm）。

Two blood protein polymorphic loci were detected in transferring and posttremsferr from thirteen red steppes and eighteen hybrid of limousin and red steppe by polyacrylamide gel electrophoresis.

方法］采用聚丙烯酰胺凝胶电泳法检测了13头草原红牛和18头利×草杂交牛的转铁蛋白和后转铁蛋白2个血液蛋白多态性位点。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐