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11,407 Newest Publications about the topic extraction

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Sustainable hydrophobic terpene-based eutectic solvents for the extraction and separation of metals

03-Jul-2018 | Nicolas Schaeffer; Mónia Martins; Catarina Seiça Neves; Simão P. Pinho; Joao A. P. Coutinho, Chemical Communication, 2018

Sustainable hydrophobic eutectic solvents, composed of low-priced and biodegradable terpenes and fatty acids, were used for the extraction and separation of Cu(II) from other transition metals in mildly acidic solutions. Multiple parameters were evaluated for metal extraction and the hydrophobic ...

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Towards a general acid-based method for the determination of gold in ore samples by inductively-coupled plasma-mass spectrometry (ICP-MS), together with an investigation of solvent extraction of gold for analytical determination by microwave-induced plasma-atomic emission spectrometry (MIP-AES)

03-Jul-2018 | Wryan Helmeczi; William Erick Helmeczi; Laura Agnes Baker; Yong Wang; I D Brindle, Journal of Analytical Atomic Spectrometry, 2018

In this paper, we explore a variety of aqueous digestion techniques for the determination of gold, in a wide variety of mineral matrices. These include feldspar, basalt, pyrites, and other gold-containing minerals. The acid-based digestion methods compete effectively with fire assay to deliver ...

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Repurposing bacterial extracellular matrix for selective and differential abstraction of rare earth elements

03-Jul-2018 | Pei Kun R. Tay; Avinash Manjula-Basavanna; Neel S. Joshi, Green Chemistry, 2018

The rare earth elements (REEs) play critical roles in modern consumer electronics and clean technologies, but unpredictable supply and environmentally unsustainable extraction practices have spurred efforts to develop green methods of recovering the metals from waste streams. In this regard, we ...

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Energies, Vol. 11, Pages 1702: Feature Extraction and Comprehension of Partial Discharge Characteristics in Transformer Oil from Rated AC Frequency to Very Low Frequency

01-Jul-2018 | Zhou, Zhongliu ; Zhou, Yuanxiang ; Huang, Xin ; Zhang, Yunxiao ; Wang, Mingyuan ; Guo, Shaowei, Energies, 2018

Energies, Vol. 11, Pages 1702: Feature Extraction and Comprehension of Partial Discharge Characteristics in Transformer Oil from Rated AC Frequency to Very Low Frequency Energies doi: 10.3390/en11071702 Authors: Zhongliu Zhou Yuanxiang Zhou Xin Huang Yunxiao Zhang Mingyuan ...

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Energies, Vol. 11, Pages 1696: Efficient Oxidative Desulfurization Processes Using Polyoxomolybdate Based Catalysts

01-Jul-2018 | Granadeiro, Carlos M.; Ferreira, Pedro M. C.; Julião, Diana ; Ribeiro, Luís A.; Valença, Rita ; Ribeiro, Jorge C ..., Energies, 2018

Energies, Vol. 11, Pages 1696: Efficient Oxidative Desulfurization Processes Using Polyoxomolybdate Based Catalysts Energies doi: 10.3390/en11071696 Authors: Carlos M. Granadeiro Pedro M. C. Ferreira Diana Julião Luís A. Ribeiro Rita Valença Jorge C. Ribeiro Isabel S. ...

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Energies, Vol. 11, Pages 1722: Numerical Analysis of Heat and Gas Transfer Characteristics during Heat Injection Processes Based on a Thermo-Hydro-Mechanical Model

01-Jul-2018 | Xue, Yi ; Dang, Faning ; Cao, Zhengzheng ; Du, Feng ; Liu, Fei ; Ren, Jie ; Gao, Feng, Energies, 2018

Energies, Vol. 11, Pages 1722: Numerical Analysis of Heat and Gas Transfer Characteristics during Heat Injection Processes Based on a Thermo-Hydro-Mechanical Model Energies doi: 10.3390/en11071722 Authors: Yi Xue Faning Dang Zhengzheng Cao Feng Du Fei Liu Jie Ren Feng ...

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Sensors, Vol. 18, Pages 2097: A Semi-Supervised Approach to Bearing Fault Diagnosis under Variable Conditions towards Imbalanced Unlabeled Data

29-Jun-2018 | Chen, Xinan ; Wang, Zhipeng ; Zhang, Zhe ; Jia, Limin ; Qin, Yong, Sensors, 2018

Sensors, Vol. 18, Pages 2097: A Semi-Supervised Approach to Bearing Fault Diagnosis under Variable Conditions towards Imbalanced Unlabeled Data Sensors doi: 10.3390/s18072097 Authors: Xinan Chen Zhipeng Wang Zhe Zhang Limin Jia Yong Qin Fault diagnosis of rolling element ...

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Toward a sustainable materials system

29-Jun-2018 | Elsa A. Olivetti; Jonathan M. Cullen, Science , 2018

Global annual resource use reached nearly 90 billion metric tons in 2017 and may more than double by 2050. This growth is coupled with a shift of materials extraction from Europe and North America to Asia. In 2017, 60% of all materials were extracted in Asia, and extraction is expected to rise ...

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Molecules, Vol. 23, Pages 1573: Simultaneous Determination and Pharmacokinetics of Peimine and Peiminine in Beagle Dog Plasma by UPLC-MS/MS after the Oral Administration of Fritillariae ussuriensis Maxim and Fritillariae thunbergii Miq Powder

28-Jun-2018 | Wang, Zhibin ; Cao, Feng ; Chen, Yajun ; Tang, Zhenqiu ; Wang, Zhenyue, Molecules, 2018

Molecules, Vol. 23, Pages 1573: Simultaneous Determination and Pharmacokinetics of Peimine and Peiminine in Beagle Dog Plasma by UPLC-MS/MS after the Oral Administration of Fritillariae ussuriensis Maxim and Fritillariae thunbergii Miq Powder Molecules doi: ...

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Molecules, Vol. 23, Pages 1568: Simultaneous Quantification of Three Curcuminoids and Three Volatile Components of Curcuma longa Using Pressurized Liquid Extraction and High-Performance Liquid Chromatography

28-Jun-2018 | Chao, In-Cheng ; Wang, Chun-Ming ; Li, Shao-Ping ; Lin, Li-Gen ; Ye, Wen-Cai ; Zhang, Qing-Wen, Molecules, 2018

Molecules, Vol. 23, Pages 1568: Simultaneous Quantification of Three Curcuminoids and Three Volatile Components of Curcuma longa Using Pressurized Liquid Extraction and High-Performance Liquid Chromatography Molecules doi: 10.3390/molecules23071568 Authors: In-Cheng Chao Chun-Ming ...

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