Resources Processing最新文献_第6页

ACORGA M5640によるアンモニウム塩水溶液からのニッケル（II）およびコバルト（III）の分離に関する一考察关于ACORGA M5640从铵盐水溶液中分离镍(II)和钴(III)的考察

Resources Processing Pub Date : 2016-01-01 DOI: 10.4144/RPSJ.63.24

裕幸斎藤, 晃慶林, 祐麻鈴木, 正和新苗

引用次数: 1

Manufacturing Process of Layered Double Hydroxide Using Iron and Steel Slag as a Raw Material 以钢渣为原料制备层状双氢氧化物的工艺

Resources Processing Pub Date : 2016-01-01 DOI: 10.4144/RPSJ.63.111

N. Murayama, Kai Moriyma, J. Shibata, Etsuro Udagawa

{"title":"Manufacturing Process of Layered Double Hydroxide Using Iron and Steel Slag as a Raw Material","authors":"N. Murayama, Kai Moriyma, J. Shibata, Etsuro Udagawa","doi":"10.4144/RPSJ.63.111","DOIUrl":"https://doi.org/10.4144/RPSJ.63.111","url":null,"abstract":"Syntheses of layered double hydroxides (LDHs) were carried out using acid leachates of various iron and steel slag as a raw material. The behaviors of precipitation and dissolution for various metal components in the leachates were investigated, by considering the material balance in the LDH production process from iron and steel slag. Removal tests of Cr(VI), B, As(III) and Se(IV) in dilute aqueous solution were conducted with the resulting LDHs. Metal components in the slag are mainly Ca, Mg, Al and Si. The slag leachates contain about 25% of Si component which may not exist in the hydroxide layer of resulting LDHs. The slag leachate with low Si concentration suitable for LDH synthesis can be obtained by controlling the acid leaching condition of slag successfully. According to the material balance in the LDH production process, it is found that only the Ca precipitation shows 15% or less and those of other metals such as Mg, Al and Fe are almost 100%. The LDHs synthesized from the slag leachate with low Si concentration have excellent removal ability for toxic anionic species and the ability is almost the same as that prepared from reagent. By considering the material balance of LDH production process, it is clarified that the decrease in Si concentration in the slag leachate contributes to the improvement of removal ability of the obtained LDHs.","PeriodicalId":20971,"journal":{"name":"Resources Processing","volume":"76 1","pages":"111-119"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90967980","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

Technological Factors of Environmental Industry Promotion of Eco-town Projects 生态小镇项目环境产业促进的技术因素

Resources Processing Pub Date : 2016-01-01 DOI: 10.4144/RPSJ.63.120

Meiji Sato, O. Miki

引用次数: 0

Characteristics of Arsenic-methylation and Arsenic-removal by Bordetella petrii Strain KC42 彼得氏杆菌KC42菌株的砷甲基化及砷去除特性

Resources Processing Pub Date : 2016-01-01 DOI: 10.4144/RPSJ.63.18

M. Miyatake, S. Hayashi

引用次数: 1

酸化マグネシウムによるヒ素（V）汚染土壌の不溶化に土壌特性が与える影響砷(V)氧化镁污染土壤特性对不溶化的影响

Resources Processing Pub Date : 2015-01-01 DOI: 10.4144/RPSJ.62.89

祐麻鈴木, 哲哉中村, 史也中原, 正和新苗, 英喜中田, 啓史藤井, 行雄田坂

引用次数: 1

Effect of Grinding on Sulfuric Acid Leaching Efficiency of Nickel and Aluminum from Alkaline Leaching Residue of Spent Hydrodesulphurization Catalysts 磨矿对废加氢脱硫催化剂碱浸渣中镍和铝硫酸浸出效率的影响

Resources Processing Pub Date : 2015-01-01 DOI: 10.4144/RPSJ.62.51

K. Manabe, Tasuma Suzuki, Masakazu Niinae, J. Shibata

{"title":"Effect of Grinding on Sulfuric Acid Leaching Efficiency of Nickel and Aluminum from Alkaline Leaching Residue of Spent Hydrodesulphurization Catalysts","authors":"K. Manabe, Tasuma Suzuki, Masakazu Niinae, J. Shibata","doi":"10.4144/RPSJ.62.51","DOIUrl":"https://doi.org/10.4144/RPSJ.62.51","url":null,"abstract":"Spent Hydrodesulphurization (HDS) catalysts contain rare metals such as molybdenum, vanadium, nickel and cobalt on an alumina carrier. In most cases, spent catalysts are treated with hydrometallurgical leaching processes such as caustic leaching and acid leaching with roasting as a pre-treatment step. In the alkaline leaching processes such as sodium carbonate roasting followed by water leaching, most of the molybdenum and vanadium are selectively leached and most of nickel is left in the residue after the alkaline leaching of spent HDS catalysts. Therefore, it is important to recover nickel from the residue. The main form of nickel in the residue is spinel, therefore, it is difficult to extract nickel from the residue using mineral acids. In the present study, the effect of grinding conditions on the leaching efficiency of nickel from the residue after sodium carbonate roasting followed by water leaching of spent HDS catalysts with sulfuric acid was investigated. The grinding speed, grinding time and the amount of residue in grinding significantly affected the leaching efficiency of nickel and aluminum. In particular, the extraction of aluminum was low in the low amount of the residue fed in grinding, because the particles were aggregated again. However, the extraction of nickel was not affected by the reaggrega- tion of particles. Therefore, the possibility of preferential leaching of nickel from aluminum was suggested.","PeriodicalId":20971,"journal":{"name":"Resources Processing","volume":"2003 1","pages":"51-55"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87046292","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

濃硫酸を用いた廃蛍光体中の希土類元素（La, Ce, Tb）の可溶化使用浓硫酸的废荧光体中稀土元素(La, Ce, Tb)的可溶化

Resources Processing Pub Date : 2015-01-01 DOI: 10.4144/RPSJ.62.77

和也小山, 幹也田中

引用次数: 0

2-エチルヘキシルホスホン酸-モノ-2-エチルヘキシルを内包したポリビニルアルコール/アルギン酸架橋ゲルマイクロカプセルによるCo(II)抽出平衡内含2-乙基己基膦酸-物-2-乙基己基的聚乙烯醇/海藻酸交联胶微胶囊的Co(II)提取平衡

Resources Processing Pub Date : 2015-01-01 DOI: 10.4144/RPSJ.62.56

俊一小松, 史朗清山, 孝行武井, 昌弘吉田, 塩盛弘一郎

引用次数: 3

Automatic Sorting of Small Electronic Device Scraps to Facilitate Tantalum Recycling 小型电子设备废料自动分拣，方便钽回收

Resources Processing Pub Date : 2015-01-01 DOI: 10.4144/RPSJ.62.10

S. Koyanaka, Kenichiroh Kobayashi, T. Oki

引用次数: 2

Electrokinetic Remediation of Soils Contaminated by Cationic Metals: —Influence of Pulse Voltage on Soil Acidification and Remediation Efficiencies@@@―パルス波形電圧が土壌酸性化および浄化効率に及ぼす影響― Electrokinetic Remediation of Soils Contaminated by Cationic Metals:——Influence of Pulse Voltage on Soil Acidification and RemediationEfficiencies@@@—脉冲波形电压对土壤酸化和净化效率的影响—

Resources Processing Pub Date : 2015-01-01 DOI: 10.4144/RPSJ.62.63

Tasuma Suzuki, K. Kawai, Yukari Nishibayashi, Yukinori Oyama, Masakazu Niinae

{"title":"Electrokinetic Remediation of Soils Contaminated by Cationic Metals: —Influence of Pulse Voltage on Soil Acidification and Remediation Efficiencies@@@―パルス波形電圧が土壌酸性化および浄化効率に及ぼす影響―","authors":"Tasuma Suzuki, K. Kawai, Yukari Nishibayashi, Yukinori Oyama, Masakazu Niinae","doi":"10.4144/RPSJ.62.63","DOIUrl":"https://doi.org/10.4144/RPSJ.62.63","url":null,"abstract":"The objective of this study was to investigate the influence of pulse voltage on acidification and remediation efficiencies of soils contaminated by lead, cadmium, and magnesium. To achieve this objective, a series of bench-scale electrokinetic experiments was performed under the conditions in which the soil pH was gradually decreased from the cathode side. The electrokinetic experimental results demonstrated that the majority of soil pHs were below 4.0 after 36 hours energization and correspondingly, all cationic metals investigated in this study were migrated toward the cathode. Regarding the influence of pulse voltage, the electrokinetic experiments in which a pulse voltage (3 hours ON, 3 hours OFF) was applied demonstrated that applying the pulse voltage did not provide neither positive nor negative influences on the soil acidification and electricity consumption for removing three metals. It was also demonstrated that applying a pulse voltage (2 seconds ON, 2 seconds OFF) negatively affected the remediation performance with respect to the electricity consumption when compared to the case in which constant voltage was applied.","PeriodicalId":20971,"journal":{"name":"Resources Processing","volume":"38 1","pages":"63-68"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74202548","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