Iron Ores and Iron Oxide Materials最新文献

Genesis, Uses and Environment Implications of Iron Oxides and Ores 氧化铁及其矿石的成因、用途及环境意义

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.75776

D. Egirani, Mohd Talib Latif, Nanfe. R. Poyi, Napoleon Wessey, S. Acharjee

{"title":"Genesis, Uses and Environment Implications of Iron Oxides and Ores","authors":"D. Egirani, Mohd Talib Latif, Nanfe. R. Poyi, Napoleon Wessey, S. Acharjee","doi":"10.5772/INTECHOPEN.75776","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.75776","url":null,"abstract":"Iron oxides are chemical complexes which occur naturally, comprising iron and oxygen. Here, together, 16 types of iron oxides and oxyhydroxides have been identified. These two components of oxides are widely spread naturally. They are vital to humans and useful in most geological and biological activities. In addition, they are useful as pigments and catalyst in industries and hemoglobin in blood circulation. The interplay and conversion of these components from one form to another are essentially controlled by bacterial species. These contain 70 and 72% iron, respectively. Furthermore, iron ores are classified in terms of occurrence. Banded iron formation (BIF) comprises 15% iron, com prising minerals of iron that are bedded besides silica. Beneficiation processes of iron ore generate dust in the atmosphere, acid mine drainage in the ecosystem and metallic iron for steelmaking. Beneficiation process requires dissolution of minerals surrounding the ore and the release of metals and cement matrix into water courses. These generates acid leading to acid mine drainage. Therefore, there is a need for impact assessment of the environment in the planned beneficiation cycle. Sustainable beneficiation must be done to reduce impact on the natural, social or economic environment.","PeriodicalId":14641,"journal":{"name":"Iron Ores and Iron Oxide Materials","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82199474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Investigation of Removing Direct Blue 15 Dye from Wastewater Using Magnetic Luffa sponge NPs 磁性丝瓜海绵NPs去除废水中直接蓝15染料的研究

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.73216

H. Nadaroğlu, S. Çiçek, Hicran Onem, Azize AlayliGungor

引用次数: 1

Calcination and Pelletizing of Siderite Ore 菱铁矿的煅烧和造球

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.72808

Mehmet Çelikdemir, M. Sarıkaya, T. Depci, RamazanAydogmus, A. Yucel

{"title":"Calcination and Pelletizing of Siderite Ore","authors":"Mehmet Çelikdemir, M. Sarıkaya, T. Depci, RamazanAydogmus, A. Yucel","doi":"10.5772/INTECHOPEN.72808","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.72808","url":null,"abstract":"In the present study, calcination properties of Hekimhan-Deveci siderite (FeCO 3 ) ore and the effect of calcination process before the pelletization on strength of pellet were inves tigated and evaluated. Two different calcination processes were followed. One of them is the traditional calcination process and the other one is microwave assisted calcination process which is a new process for siderite ore. The characterization of the calcined and uncalcined siderite ore was done using X-ray diffraction, X-ray fluorescence spectrom etry and thermogravimetric analysis. The physical and mechanical properties of pellets which were obtained using the raw siderite and the calcined siderite were compared with each other. As a result of experimental studies, it was found that the calcination process decreased the milling time, causing the significant energy saving and the most suitable calcination process for siderite ore was found as 15 min at 700°C temperature. It was the first time that the calcination process of the siderite ore was achieved by microwave by adding 30 wt% sucrose as a thermal auxiliary. The microwave conditions were deter - mined as 900 W at 3 min. In 3 min, the temperature of the siderite ore increased up to 1100°C and 32.14% weight loss for the sample was achieved. different bentonite ratios (8, 9, 10, 11, 12%) to the raw siderite and the calcined siderite which were milled for 90 and 60 min, respectively. The raw pellets were heated at a temperature of 1300°C which is the recrystallization temperature of hematite. Recrystallization was confirmed by SEM images and the process was confirmed to be successful. The product pellets were tested for compressive strength. The highest level of pellet strength was determined from the material obtained by grinding calcined siderite for 90 min. This pellet, which has a maximum strength value of 268 kgf, has an average durability of 28% higher than the pellet of the raw siderite.","PeriodicalId":14641,"journal":{"name":"Iron Ores and Iron Oxide Materials","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82783871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Chinese Iron Ore Deposits and Ore Production 中国铁矿石储量和产量

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.76729

Guangrong Li

引用次数: 10

The Extented Discrete Element Method (XDEM): An Advanced Approach to Model Blast Furnace 扩展离散元法(XDEM):高炉建模的一种先进方法

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.75436

B. Peters, Baniasadi Maryam, M. Baniasadi

引用次数: 8

Iron Ore Pelletizing Process: An Overview 铁矿石制球工艺综述

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.73164

S. Moraes, J. Lima, T. R. Ribeiro

引用次数: 23

Photoelectrochemistry of Hematite 赤铁矿的光电化学

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.73228

Y. Maeda

引用次数: 0

Preclinical Aspects on Magnetic Iron Oxide Nanoparticles and Their Interventions as Anticancer Agents: Enucleation, Apoptosis and Other Mechanism 磁性氧化铁纳米颗粒及其作为抗癌药物的临床前研究:去核、细胞凋亡和其他机制

Iron Ores and Iron Oxide Materials Pub Date : 2018-07-11 DOI: 10.5772/INTECHOPEN.74176

Elena-Alina Moacă, Elena Dorina Coricovac, Codruta MarinelaSoica, I. Pinzaru, C. Păcurariu, C. Dehelean

{"title":"Preclinical Aspects on Magnetic Iron Oxide Nanoparticles and Their Interventions as Anticancer Agents: Enucleation, Apoptosis and Other Mechanism","authors":"Elena-Alina Moacă, Elena Dorina Coricovac, Codruta MarinelaSoica, I. Pinzaru, C. Păcurariu, C. Dehelean","doi":"10.5772/INTECHOPEN.74176","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.74176","url":null,"abstract":"The broad area of magnetic iron oxide nanoparticle (M-IONP) applications and their exclusive physico-chemical characteristics (superparamagnetic properties per se , solu-bility and stability in aqueous solutions, and high bioavailability in vivo ) make these nanoparticles suitable candidates for biomedical uses. The most employed magnetic iron oxides in the biomedical field are magnetite and maghemite. Cancer represents a complex pathology that implies multiple mechanisms and signaling pathways, this complexity being responsible for the increased resistance to therapy and the lack of an effective curative treatment. A potential useful alternative was considered to be the use of magnetic iron nanoparticles. The M-IONPs proved to be effective as contrast agents in magnetic resonance imaging, as drug delivery carriers for different therapeutic agents, in magnetic cell separation assays, and are suitable to be engineered in terms of size, targeted delivery and substance release. Moreover, their in vivo administration was considered safe, and recent studies indicated their efficiency as anticancer agents. This chap - ter aims to furnish an overview regarding the physico-chemical properties of M-IONPs (mainly magnetite, maghemite and hematite), the synthesis methods and their in vitro biological impact on healthy and cancer cell lines, by describing their potential mecha- nism of action—enucleation, apoptosis or other mechanisms.","PeriodicalId":14641,"journal":{"name":"Iron Ores and Iron Oxide Materials","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81742138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Bandgap-Engineered Iron Oxides for Solar Energy Harvesting 用于太阳能收集的带隙工程氧化铁

Iron Ores and Iron Oxide Materials Pub Date : 2018-01-26 DOI: 10.5772/INTECHOPEN.73227

M. Seki

引用次数: 6

Mn-Zn Ferrite as Recycled Material Resource Based on Iron Oxide Suitable to Functional Green Devices 基于氧化铁的锰锌铁氧体可回收材料适于功能性绿色器件

Iron Ores and Iron Oxide Materials Pub Date : 2017-12-20 DOI: 10.5772/INTECHOPEN.72418

R. Baca

{"title":"Mn-Zn Ferrite as Recycled Material Resource Based on Iron Oxide Suitable to Functional Green Devices","authors":"R. Baca","doi":"10.5772/INTECHOPEN.72418","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.72418","url":null,"abstract":"Today manufacturing stages in electronic device industry of wide-scale production can be restricted due to the high costs resulting from energy consumption, the use of organic solvents, production of hazardous intermediates, and formation of waste products leading to environmental pollution and several biological risks which damage society’s ability to sustain the planet for future generations. As recycled material resource based on iron oxide, the Mn-Zn ferrite is an interesting candidate. In the last decades, this material has been manufactured by using ceramic process technologies to design magnetic devices as components useful in switching mode electronic systems. However, these processing technologies have generated negative environmental impact as emission of toxic gases and higher use of energy resources. The Mn-Zn ferrites employed in consumer electronics deteriorate the earth when its final placement as waste in landfills occurs. Then, attitudes in resource recovery should allow the recycling of the materials from electronic waste to converting those to new products; therefore, uncommon physical properties from shredding processes are available when bulk ferrites are converted to foil ferrites. This chapter provides a comprehensive study on recyclability of the Mn-Zn ferrites, exploring both structure and conduction properties in foil ferrites to use their nonlinear behavior in functional green devices.","PeriodicalId":14641,"journal":{"name":"Iron Ores and Iron Oxide Materials","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81389656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1