Materials Proceedings最新文献

筛选
英文 中文
Carbon Quantum Dot-Based UV-Protective Coatings 碳量子点基防紫外线涂层
Materials Proceedings Pub Date : 2022-06-23 DOI: 10.3390/materproc2022008106
Mariana R. F. Silva, M. Alves, M. H. Fernandes, P. Vilarinho, P. Ferreira
{"title":"Carbon Quantum Dot-Based UV-Protective Coatings","authors":"Mariana R. F. Silva, M. Alves, M. H. Fernandes, P. Vilarinho, P. Ferreira","doi":"10.3390/materproc2022008106","DOIUrl":"https://doi.org/10.3390/materproc2022008106","url":null,"abstract":"","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83970962","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
Assessment of Clayey Raw Materials from the Argillic Alteration Zones from Sappes Area, Thrace, Northern Greece in Ceramic Production 希腊北部色雷斯萨普斯地区泥质蚀变带粘土原料在陶瓷生产中的评价
Materials Proceedings Pub Date : 2022-02-15 DOI: 10.3390/materproc2021005114
E. Koutsopoulou, I. Marantos, V. Xanthopoulou, N. Xirokostas, I. Iliopoulos
{"title":"Assessment of Clayey Raw Materials from the Argillic Alteration Zones from Sappes Area, Thrace, Northern Greece in Ceramic Production","authors":"E. Koutsopoulou, I. Marantos, V. Xanthopoulou, N. Xirokostas, I. Iliopoulos","doi":"10.3390/materproc2021005114","DOIUrl":"https://doi.org/10.3390/materproc2021005114","url":null,"abstract":"Samples were collected from the argillic alteration zones in Sappes area, Thrace, Northern Greece and were examined for their mineralogical composition. Results showed that the sericite zone is the most widespread type of alteration in the studied area, followed by the transitional sericite–kaolinite zone and finally the pyrophyllite-rich zone. After determination of the spatial distribution of the different argillic alteration zones, selected samples were examined for their technological ceramic properties in order to evaluate their use in ceramic production. Preliminary results showed that after beneficiation processes, the clayey raw material from the alteration zones could be used in the ceramic industry.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87127370","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
A Comparative Study of Acid-Activated Aluminium and Ferruginous Smectite in Oxalic Acid of Various Concentrations 不同浓度草酸中酸活化铝和含铁蒙脱石的比较研究
Materials Proceedings Pub Date : 2022-02-14 DOI: 10.3390/materproc2021005113
Danai Tsakiri, I. Douni, M. Taxiarchou
{"title":"A Comparative Study of Acid-Activated Aluminium and Ferruginous Smectite in Oxalic Acid of Various Concentrations","authors":"Danai Tsakiri, I. Douni, M. Taxiarchou","doi":"10.3390/materproc2021005113","DOIUrl":"https://doi.org/10.3390/materproc2021005113","url":null,"abstract":"Acid activation is a chemical modification of minerals and mainly smectites, in order to enhance their surface properties and reinforce their adsorption capacity for specific ions. Acid-activated clays and, more specifically, inorganic acid-activated calcium montmorillonites are mainly used in the bleaching process of vegetable oils, which are holding third place in the world food consumption after cereals and rice, in order to remove chlorophyll and other undesirable substances from the oils. This study proposes the use of oxalic acid for the acid activation of smectites, in order to modify their surface characteristics and create high-quality bleaching earths. In particular, aluminium and ferruginous smectites are treated with oxalic acid concentrations of 0.5, 0.7 and 1 M, and the structural modifications in the materials after treatment are observed through FTIR analysis, combined with the determination of the main structural metals’ extraction from the smectites. The results showed that ferruginous smectite is more susceptible to oxalic acid activation. The final product has developed vacant spaces in its structure to absorb other ions or molecules, although it retains the structure of smectite. Oxalic acid concentration of 0.5 M is sufficient for achieving this result. The materials produced through the oxalic acid activation are also compared with inorganic acid-activated smectites originating from the same deposits.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86728548","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
A Critical Review on Evaluation of the Marine Resources Mining versus the Land-Based Ones for REE 海洋资源开采与陆地资源开采稀土资源评价综述
Materials Proceedings Pub Date : 2022-02-10 DOI: 10.3390/materproc2021005112
K. Papavasileiou
{"title":"A Critical Review on Evaluation of the Marine Resources Mining versus the Land-Based Ones for REE","authors":"K. Papavasileiou","doi":"10.3390/materproc2021005112","DOIUrl":"https://doi.org/10.3390/materproc2021005112","url":null,"abstract":"It is now scientifically proven that specific categories of submarine raw materials, especially deep seas such as Mn and Fe oxides, polymetallic nodules, polymetallic sulfides (SMS) and some deep-sea sediment categories, can have significant potential for some critical metals for future use. One characteristic of these deposits is that although they often have lower Rare Earth Elements (REE) contents than the well-known land deposits, their sizes are very extensive, much higher than the land-based deposits. Therefore, the future use of these submarine formations as a source of REEs can be an important alternative to the exponentially growing demand for these strategic metals. These formations have significant potential to be a source of REEs in the markets when they are extracted as byproducts of the most critical metals such as copper, nickel, cobalt and manganese, from Mn nodules. To prove how realistic, the extraction of REE from those deposits is in market terms, we studied the economotechnical dimension and the potential or REEs compared to those of the well-known on-land REE deposits. Two studies are presented concerning the existing exploration pre-feasibility cases for REEs originated from two existing licences granted by the International Seabed Authority (ISA) in the Clarion Clipperton Zone (CCZ). The examination of these two cases has clearly shown that compared to the corresponding deposits of REE inland, the total basket prices of these submarine deposits are higher due to the higher contents of heavy REE such as Nd, Pr and Dy and Sm, Eu, Gd, Tb and Y in these marine deposits. Considering that the prices in the international markets for most of the REE oxides between 2019 and 2021 were very high, they gave these deposits even greater economic value. The significant advantage of the mining and metallurgical treatment of these manganese nodules and cobalt-rich manganese crusts is also related to the fact that REEs are not part of the crystal lattice of the minerals that host them, in contrast to what happens with land-based deposits. This makes their metallurgical processing more manageable and cheaper. This fact makes mining and metallurgical treatment economically favourable. On the other hand, the very low Th and U concentrations in these deep-sea deposits do not pose environmental risks in many well-known land-based REE deposits.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75831457","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
Recovery of Tungsten from Downstream Mineral Processing Fractions by Deep Eutectic Solvents 用深共晶溶剂从下游选矿馏分中回收钨
Materials Proceedings Pub Date : 2022-02-10 DOI: 10.3390/materproc2021005096
L. Yurramendi, J. Nieto, A. Siriwardana
{"title":"Recovery of Tungsten from Downstream Mineral Processing Fractions by Deep Eutectic Solvents","authors":"L. Yurramendi, J. Nieto, A. Siriwardana","doi":"10.3390/materproc2021005096","DOIUrl":"https://doi.org/10.3390/materproc2021005096","url":null,"abstract":"Tungsten is a scarce and valuable metal with a wide range of applications. Currently, the recovery of tungsten from scheelite concentrates involves the use of strong acids, alkalis, and/or high temperatures (roasting). Deep Eutectic Solvents (DES) are proposed as an environmentally friendly alternative for the leaching process aiming to extract the tungsten contained. In this work, high grade scheelite concentrate (W 57%) was the material used for the investigation. After an exhaustive DES screening, choline chloride-oxalic acid (ChCl/OA)-based DES showed the best leaching performance. An optimization of the leaching variables (temperature, time, liquid/solid ratio, ChCl/OA ratio) was carried out. A W extraction yield as high as 95% was achieved at certain operating conditions.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75991917","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
Relating Industrial Symbiosis and Sustainable Development Goals 工业共生与可持续发展目标的关系
Materials Proceedings Pub Date : 2022-02-08 DOI: 10.3390/materproc2021005111
Juan Henriques, João Azevedo, M. Estrela, Rui Dias
{"title":"Relating Industrial Symbiosis and Sustainable Development Goals","authors":"Juan Henriques, João Azevedo, M. Estrela, Rui Dias","doi":"10.3390/materproc2021005111","DOIUrl":"https://doi.org/10.3390/materproc2021005111","url":null,"abstract":"Circular Economy (CE) has grown prominence over the last two decades as a concept that presents solutions to some of the world’s most transversal sustainable development challenges and consequently its various business models such as Industrial Symbiosis (IS) have been identified as important tools for Sustainable Development (SD). Several authors have created a solid base to understand how CE contributes to SDGs achievement, nevertheless, there is a limited number of contributions in understanding how IS will contribute to achieving the SDGs. This paper aims to advance in the understanding of IS implementation within the scope of the achievement of SDGs, with a special focus on identifying which is the relevance of the IS to achieve the SDGs and which are the critical areas of contribution. To accomplish this objective, a research methodology integrated with a literature review and matching exercise was performed. The results of this study suggest that the extended IS implementation might collaborate with the achievement of 8 SDGs and 22 targets.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86962555","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
ERA-MIN: A Decade since the Inception of the EU Led Effort to Support the International Raw Materials Research Community ERA-MIN:自欧盟领导的支持国际原材料研究共同体的努力开始以来的十年
Materials Proceedings Pub Date : 2022-01-28 DOI: 10.3390/materproc2021005110
Julio Marchamalo, J. Sotelo, Dina Carrilho
{"title":"ERA-MIN: A Decade since the Inception of the EU Led Effort to Support the International Raw Materials Research Community","authors":"Julio Marchamalo, J. Sotelo, Dina Carrilho","doi":"10.3390/materproc2021005110","DOIUrl":"https://doi.org/10.3390/materproc2021005110","url":null,"abstract":"ERA-NET Cofund on Raw Materials (ERA-MIN) is a global, innovative and flexible pan-European network of research funding organisations, supported by EU Horizon 2020, that counts now with its third edition. ERA-MIN3 (2020–2025) builds on the experience of the FP7 ERA-NET ERA-MIN (2011–2015) and the still running H2020 ERA-MIN 2 (2016–2022). ERA-MIN aims to support the European Innovation Partnership on Raw Materials (EIP RM), the EU Raw Materials Initiative, the Circular Economy Action Plan and further develop the raw materials (RM) sector in Europe through funding of transnational research and innovation (R&I) activities. This is achieved through calls designed and developed specifically for the non-fuel, non-food raw materials sector.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81055523","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
The Nickel Production Methods from Laterites and the Greek Ferronickel Production among Them 红土制镍方法及其中希腊镍铁的生产
Materials Proceedings Pub Date : 2022-01-24 DOI: 10.3390/materproc2021005104
Emmanouil N. Zevgolis, Konstantinos Daskalakis
{"title":"The Nickel Production Methods from Laterites and the Greek Ferronickel Production among Them","authors":"Emmanouil N. Zevgolis, Konstantinos Daskalakis","doi":"10.3390/materproc2021005104","DOIUrl":"https://doi.org/10.3390/materproc2021005104","url":null,"abstract":"Primary world nickel production in 2020 was 2430.7 kt Ni; 69% (1677.7 kt) of them came from oxidized nickel ores (laterites) and 31% from sulfides. Production-wise, 87.7% of the 1677.7 kt came from pyrometallurgical and 12.3% from hydrometallurgical processes. For a long time, Fe-Ni had a 20–40% Ni analysis, but in 2006 a new Fe-Ni quality came into the scene. This is the nickel pig iron (NPI) with 2.5–5.5% Ni that comes from laterite smelting in the blast furnace (B/F). Eventually, the advantages of the R/K-E/F process led to its dispersion in China and Indonesia and resulted in an NPI production with 3–12% Ni. The NPI production in these two countries climbed from zero in 2000, to 1060 kt Ni in 2020 and also stainless-steel production from 5.5% to 67.2%, respectively, of the world’s SS production. The integration of Ni industry with SS production, the economy of scale, the low labor cost, the high Ni content of Indonesian laterite, and the loose environmental laws, reduced significantly the NPI production cost. The addition of SS and/or electric energy production units for cost reduction has been adapted from other Fe-Ni producers, as well. Hellenic Minerals in Cyprus after two years of successful industrial tests is in the commissioning state of a Heap Leaching-Solvent Extraction-Crystallizer (HL-SX-CR) unit for NiSO4.6H2O production. The high demand for Ni and NiSO4.6H2O in the last few years has changed the prospects of Ni laterite hydrometallurgical processing. Regarding the R/K-E/F process used in Greek Fe-Ni, it is characterized by its worldwide acceptance and reliability (more than 77% of world Fe-Ni production comes from this process). Other advantages are the use of all types of laterites and fuels, it has a high metallurgical recovery, and the plant has its own port. However, it is a high energy-consuming process, and it does not recover Co. The Greek laterite, in particular, has the lowest Ni% among global Fe-Ni producers and because of this, electric energy (MWh/t Ni) and wages (wages/t Ni) per ton of Ni are high, making Larco’s viability difficult. The only way to overcome the issue with specific electricity consumption is to enrich the local ores by blending them with imported high grade Ni ores. Other negatives were the excessive electric energy price it had to pay to a dominant energy supplier and the very frequent changes of its administration.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83156292","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: 5
Development of Complex Concentrated Alloys (CCAs) Utilizing Scrap to Preserve Critical Raw Materials 利用废料保存关键原料的复合浓缩合金(CCAs)的开发
Materials Proceedings Pub Date : 2022-01-20 DOI: 10.3390/materproc2021005109
Spyridon Chaskis, M. Bouzouni, E. Gavalas, Vasilis Loukadakis, S. Papaefthymiou
{"title":"Development of Complex Concentrated Alloys (CCAs) Utilizing Scrap to Preserve Critical Raw Materials","authors":"Spyridon Chaskis, M. Bouzouni, E. Gavalas, Vasilis Loukadakis, S. Papaefthymiou","doi":"10.3390/materproc2021005109","DOIUrl":"https://doi.org/10.3390/materproc2021005109","url":null,"abstract":"The research and development of high-entropy alloys (HEAs) and complex-concentrated alloys (CCAs) are growing rapidly, focusing on the enhanced properties of these alloys. However, so far, their manufacturing has not exceeded the laboratory scale. To meet this challenge, a combination of the processing characteristics and methods along with their sustainable production must be ensured. Moving towards a circular economy, this includes the utilization of low-cost, widely available scrap for the manufacturing of CCAs. Changing the raw materials, can ensure a cost-efficient production and paves the way to surpass major limitations in the industrial manufacturing of CCAs. Examples of a novel lightweight CCA design approach will be presented in this work.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"20 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80503380","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
Formation, Characterization and SEM Microanalysis of Yeelimite 叶铝石的形成、表征及SEM微观分析
Materials Proceedings Pub Date : 2022-01-18 DOI: 10.3390/materproc2021005106
M. D. Kamitsou, Elias Kostakopoulos, D. Kanellopoulou, V. Hallet, Petrica Petrica, A. Christogerou, G. Angelopoulos
{"title":"Formation, Characterization and SEM Microanalysis of Yeelimite","authors":"M. D. Kamitsou, Elias Kostakopoulos, D. Kanellopoulou, V. Hallet, Petrica Petrica, A. Christogerou, G. Angelopoulos","doi":"10.3390/materproc2021005106","DOIUrl":"https://doi.org/10.3390/materproc2021005106","url":null,"abstract":"Yeelimite is one of the main components of SulfoBelite (SB) and Calcium SulfoAluminate cements which are promising low carbon alternatives to Portland ones. In this study, stoichiometric yeelimite, obtained at different temperatures, was characterized by XRD, Q-XRD and SEM-EDS. Additionally, mortars of the synthetic yeelimite, with and without standard sand, were studied in terms of the development of strength over time. The main result is that high yeelimite content samples were prepared by mixing stoichiometric quantities of analytical-grade raw materials at 1330 °C for 3 h soaking time, followed by rapid cooling. Moreover, an increase in the formed yeelimite results in increased strength values that meet the requirements to be classified at CEM 32.5.","PeriodicalId":18729,"journal":{"name":"Materials Proceedings","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74237579","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信