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学者姓名：林诚
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Abstract ：
难处理金精矿的生物氧化浸出过程是一种新型、低污染、清洁的生产工艺。该生物氧化过程是在气液固三相生物搅拌釜反应器中进行的。在气液固三相生物搅拌釜反应器中,离底悬浮状态具有较低剪应力、较低能耗和较高相间传质系数的特点,是保证生物反应持续高效进行的一个优化条件。为了优化设置搅拌桨离底高度以实现生物氧化浸出反应过程的节能和高效,本文提出了一种通用的计算离底悬浮转速的公式,并采用实验数据进行验证。结果表明:针对精金矿体系气液固三相离底悬浮转速的计算误差低于20%,所提出的公式和研究方法能够快速地确定工程设计的优化参数,以实现节能和减少生物浸出的污染。
Keyword ：
搅拌桨离底高度 搅拌桨离底高度 搅拌釜 搅拌釜 离底悬浮 离底悬浮 难处理金精矿 难处理金精矿 预测模型 预测模型
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| GB/T 7714 | 郑成辉 , 白悦 , 严佐毅 et al. 金精矿生物氧化反应器的离底悬浮及设计优化 [J]. | 中国有色金属学报 , 2019 , 29 (04) : 864-877 . |
| MLA | 郑成辉 et al. "金精矿生物氧化反应器的离底悬浮及设计优化" . | 中国有色金属学报 29 . 04 (2019) : 864-877 . |
| APA | 郑成辉 , 白悦 , 严佐毅 , 陈伟立 , 李晓伟 , 林诚 . 金精矿生物氧化反应器的离底悬浮及设计优化 . | 中国有色金属学报 , 2019 , 29 (04) , 864-877 . |
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Bio-oxidation technology for leaching sulfide mineral of refractory gold concentrate is cleaner than conventional methods. Although liquid agitation can maintain cells and particles in suspension, thereby improving the mass transfer efficiency of oxygen, carbon dioxide, and nutrients, it also generates shear stress, which can reduce bio-oxidation reaction efficiency by destroying shear sensitive cells. In this study, a multiphase Eulerian model with the standard k-epsilon equation and auxiliary models were evaluated based on previously conducted experiments investigating two and three phase flows of gas-liquid, solid-liquid and gas-liquid-solid. The predicted shear stress on bacteria, gas holdup, bubble diameter and turbulence energy dissipation rate were then calculated by these models to reveal the key factors influencing bio-leaching efficiency and to analyze the primary region in which cell death occurs. The results showed that shear stress on bacteria in the impeller region is higher than in other regions. Based on the results of the study, an optimal operation condition was applied to bio-oxidation technology investigations. Comparing with classic roasting technology, bio-oxidation technology completely eliminates toxic gas emissions, reduces 4.3tons of wastewater per ton of refractory gold concentrate and reduces the leaching toxicity of total arsenic in the solid waste from 0.57 mg/L to 0.36 mg/L. It is demonstrated that bio-oxidation technology is cleaner and more eco-friendly than classic roasting technology. This work provides guidance for further study and designation of the stirred bioreactor scaleup in both biochemical and environmental engineering applications. (C) 2018 Elsevier Ltd. All rights reserved.
Keyword ：
Cleaner technology Cleaner technology Reducing waste Reducing waste Shear stress Shear stress Simulation model Simulation model Stirred bioreactor Stirred bioreactor Three phases flow Three phases flow
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| GB/T 7714 | Zheng, Chenghui , Huang, Yijuan , Guo, Jiashun et al. Investigation of cleaner sulfide mineral oxidation technology: Simulation and evaluation of stirred bioreactors for gold-bioleaching process [J]. | JOURNAL OF CLEANER PRODUCTION , 2018 , 192 : 364-375 . |
| MLA | Zheng, Chenghui et al. "Investigation of cleaner sulfide mineral oxidation technology: Simulation and evaluation of stirred bioreactors for gold-bioleaching process" . | JOURNAL OF CLEANER PRODUCTION 192 (2018) : 364-375 . |
| APA | Zheng, Chenghui , Huang, Yijuan , Guo, Jiashun , Cai, Ruyu , Zheng, Huidong , Lin, Cheng et al. Investigation of cleaner sulfide mineral oxidation technology: Simulation and evaluation of stirred bioreactors for gold-bioleaching process . | JOURNAL OF CLEANER PRODUCTION , 2018 , 192 , 364-375 . |
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A unique Rh/TiO2 solid acid catalyst modified with H2SO4 was synthesized and evaluated in the esterification reaction of propylene glycol methyl ether and decomposition of methyl orange (MO) in aqueous phase under halogen lamp irradiation. For this purpose, rhodium (Rh) nanoparticles were loaded on SO42-/TiO2 via the photo-deposition method. It was found that SO42-/Rh-TiO2 exhibited stronger catalytic activity than SO42-/TiO2. The new catalysts were characterized by X-ray powder diffraction (XRD), Brunauer-Emmett-Teller (BET), Transmission electron microscopy (TEM) and high-resolution (HRTEM), X-ray photoelectron spectroscopy (XPS) and Fourier Transform infrared spectroscopy (FTIR). Results from XRD and BET show that SO42-/Rh-TiO2 has higher specific surface area and smaller pore size than SO42-/TiO2. The distribution of loaded Rh was found to be uniform with a particle size of 2-4 nm. Data from XPS reveal that Rh primarily exists as Rh-0 and Rh3+ in Rh-TiO2 and SO42-/Rh-TiO2. These valence forms of Rh likely contribute to the enhanced catalytic activity. Furthermore, FT-IR spectra of the catalysts show an abundance of surface hydroxyl groups, which help the formation of hydroxyl radicals and the enhancement of surface acid density. The results show that more acid sites are formed on the sulfated Rh-TiO2, and these acidic sites are largely responsible for improving the catalytic performance. This superior SO42-/Rh-TiO2 catalyst has potential applications in reactions requiring efficient acid catalysts, including esterification reactions and waste water treatment. (C) 2016 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
Keyword ：
Esterification reaction Esterification reaction Methyl orange Methyl orange Photo-deposition Photo-deposition Rhodium Rhodium SO42-/TiO2 SO42-/TiO2
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| GB/T 7714 | Niu, Yu , Li, Fuying , Yang, Kai et al. Preparation and characterization of sulfated TiO2 with rhodium modification used in esterification reaction and decomposition of methyl orange [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2016 , 24 (6) : 767-774 . |
| MLA | Niu, Yu et al. "Preparation and characterization of sulfated TiO2 with rhodium modification used in esterification reaction and decomposition of methyl orange" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 24 . 6 (2016) : 767-774 . |
| APA | Niu, Yu , Li, Fuying , Yang, Kai , Qiu, Ting , Wang, Renzhang , Lin, Cheng . Preparation and characterization of sulfated TiO2 with rhodium modification used in esterification reaction and decomposition of methyl orange . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2016 , 24 (6) , 767-774 . |
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A new stable cobalt-organic framework, namely [Co-2(oba)(2)(H(2)Me(4)bPz)](n) (1) (H(2)oba = 4.4'-oxydibenzoic acid, H(2)Me(4)bpz = 3.3',5,5'-tetramethyl-4,4'-bipyrazole), has been synthesized by combining the mixed H(2)oba and H(2)Me(4)bpz with Co(CH3COO)(2)center dot 4H(2)O under solvothermal conditions, which was characterized by infrared spectroscopy, single-crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analyses. Single-crystal X-ray diffraction analysis reveals that 1 features a three-dimensional framework, which is built from interesting tetrahedral cages. The thermal stability of the complex has also been investigated. (C) 2016 Elsevier B.V. All rights reserved.
Keyword ：
Cobalt Cobalt Crystal structure Crystal structure Mixed ligand Mixed ligand MOFs MOFs Thermal stability Thermal stability
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| GB/T 7714 | Lin, Xiao-Ying , Zheng, Qin-Qin , Liu, Xin-Zhong et al. Synthesis and thermal stability study of a cobalt-organic framework with tetrahedral cages [J]. | INORGANIC CHEMISTRY COMMUNICATIONS , 2016 , 67 : 51-54 . |
| MLA | Lin, Xiao-Ying et al. "Synthesis and thermal stability study of a cobalt-organic framework with tetrahedral cages" . | INORGANIC CHEMISTRY COMMUNICATIONS 67 (2016) : 51-54 . |
| APA | Lin, Xiao-Ying , Zheng, Qin-Qin , Liu, Xin-Zhong , Jiang, Xiao-Yu , Lin, Cheng . Synthesis and thermal stability study of a cobalt-organic framework with tetrahedral cages . | INORGANIC CHEMISTRY COMMUNICATIONS , 2016 , 67 , 51-54 . |
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TiO2 has been widely used as a key catalyst in photocatalytic reactions; it also shows good catalytic activity for esterification reactions. Different sulfated M-TiO2 nanoparticles (M = Ag, Au, Rh, and Pt) were prepared by photodeposition and ultrasonic methods. The results show that the noble metal nanoparticles, which were loaded onto a TiO2 surface, slightly affected the crystal phase and particle size of TiO2. Among all the catalysts, SO42-/Au-TiO2 exhibited the best catalytic activity in the esterification reaction for the synthesis of citric acid n-butyl acetate and in the decomposition of methyl orange, as confirmed by a high conversion rate of up to 98.2% and 100% degradation rate, respectively. This can be attributed to an increase in the Lewis acidity of the catalyst and increased separation efficiency of electron-hole pairs. This superior catalyst has great potential applications in esterification reactions and wastewater treatments.
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| GB/T 7714 | Niu, Yu , Huang, Pan , Li, Fuying et al. Noble Metal Decoration and Presulfation on TiO2: Increased Photocatalytic Activity and Efficient Esterification of n-Butanol with Citric Acid [J]. | INTERNATIONAL JOURNAL OF PHOTOENERGY , 2016 , 2016 . |
| MLA | Niu, Yu et al. "Noble Metal Decoration and Presulfation on TiO2: Increased Photocatalytic Activity and Efficient Esterification of n-Butanol with Citric Acid" . | INTERNATIONAL JOURNAL OF PHOTOENERGY 2016 (2016) . |
| APA | Niu, Yu , Huang, Pan , Li, Fuying , Yang, Kai , Yang, Jinbei , Wang, Renzhang et al. Noble Metal Decoration and Presulfation on TiO2: Increased Photocatalytic Activity and Efficient Esterification of n-Butanol with Citric Acid . | INTERNATIONAL JOURNAL OF PHOTOENERGY , 2016 , 2016 . |
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Solvothermal reaction of Pb(NO3)(2)center dot 6H(2)O with rigid linear ligand terephthalic acid (H(2)pta) in N,N-dimethylformamide (DMF) produced a new three-dimensional (3D) lead(II) coordination polymer [Pb-2(pta)(1.5)(mu(4)-OH)(DMF)](n) 1, and its structure was characterized by single-crystal X-ray diffraction analyses. In polymer 1, the mu 4-OH bridges the nearby lead(II) ions into an infinite one-dimensional (1D) chain, and then the organic ligand pta(2-) joins the neighbored chains into a 3D structure by two similar connection modes in different configurations. The solid-state photoluminescent studies revealed that 1 exhibits a strong greenish emission mainly originating from ligand-to-metal charge transfer between the delocalized pi bonds of the aromatic carboxylate ligand pta(2-) and the p orbitals of the Pb2+ centers.
Keyword ：
crystal structure crystal structure lead(II) coordination polymer lead(II) coordination polymer photoluminescence property photoluminescence property solvothermal synthesis solvothermal synthesis terephthalic acid terephthalic acid
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| GB/T 7714 | Lin Xiao-Ying , Yang Pan , Chen Jun et al. Solvothermal Synthesis, Crystal Structure and Photoluminescence Property of a 3D Lead(II) Coordination Polymer Based on Terephthalic Acid [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2016 , 35 (1) : 61-68 . |
| MLA | Lin Xiao-Ying et al. "Solvothermal Synthesis, Crystal Structure and Photoluminescence Property of a 3D Lead(II) Coordination Polymer Based on Terephthalic Acid" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 35 . 1 (2016) : 61-68 . |
| APA | Lin Xiao-Ying , Yang Pan , Chen Jun , Liu Ming-Hua , Lin Cheng . Solvothermal Synthesis, Crystal Structure and Photoluminescence Property of a 3D Lead(II) Coordination Polymer Based on Terephthalic Acid . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2016 , 35 (1) , 61-68 . |
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以桃壳活性炭为载体，四乙烯五胺（TEPA）为改性剂，进行直接改性、HNO3氧化后改性，考察改性后活性炭的孔隙特征及其对CO2的吸附性能。实验表明：改性后，活性炭的比表面积和孔容减小，孔径增大。直接改性后，活性炭对CO2的吸附性能没有明显增加，HNO3＋TEPA复合改性后，对CO2的吸附性能显著提高，303 K时，对CO2的吸附量从改性前的0．39 mmol／g提高到0．73 mmol／g。TE-PA的投药量影响复合改性效果，最佳投药量为20％。
Keyword ：
CO2 吸附 CO2 吸附 四乙烯五胺 四乙烯五胺 桃壳活性炭 桃壳活性炭
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| GB/T 7714 | 林小英 , 刘志鹏 , 余巧莺 et al. 桃壳活性炭氨基改性及其对C O2的吸附性能 [J]. | 福建工程学院学报 , 2016 , 14 (1) : 28-31 . |
| MLA | 林小英 et al. "桃壳活性炭氨基改性及其对C O2的吸附性能" . | 福建工程学院学报 14 . 1 (2016) : 28-31 . |
| APA | 林小英 , 刘志鹏 , 余巧莺 , 江梅 , 张惠云 , 林诚 . 桃壳活性炭氨基改性及其对C O2的吸附性能 . | 福建工程学院学报 , 2016 , 14 (1) , 28-31 . |
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Solvothermal reaction of Pb(NO3)2.6H2O with rigid linear ligand terephthalic acid (H2pta) in N,N-dimethylformamide (DMF) produced a new three-dimensional (3D) lead(II) coordination polymer [Pb2(pta)1.5(μ4-OH)(DMF)]n 1, and its structure was characterized by single-crystal X-ray diffraction analyses. In polymer 1, the μ4-OH bridges the nearby lead(II) ions into an infinite one-dimensional (1D) chain, and then the organic ligand pta2-joins the neighbored chains into a 3D structure by two similar connection modes in different configurations. The solid-state photoluminescent studies revealed that 1 exhibits a strong greenish emission mainly originating from ligand-to-metal charge transfer between the delocalized π bonds of the aromatic carboxylate ligand pta2-and the p orbitals of the Pb2+centers.
Keyword ：
Crystal structure; Lead(II) coordination polymer; Photoluminescence property; Solvothermal synthesis; Terephthalic acid Crystal structure; Lead(II) coordination polymer; Photoluminescence property; Solvothermal synthesis; Terephthalic acid
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| GB/T 7714 | Lin, X.-Y. , Yang, P. , Chen, J. et al. Solvothermal synthesis, crystal structure and photoluminescence property of a 3D Lead(II) coordination polymer based on terephthalic acid [J]. | Jiegou Huaxue , 2016 , 35 (1) : 61-68 . |
| MLA | Lin, X.-Y. et al. "Solvothermal synthesis, crystal structure and photoluminescence property of a 3D Lead(II) coordination polymer based on terephthalic acid" . | Jiegou Huaxue 35 . 1 (2016) : 61-68 . |
| APA | Lin, X.-Y. , Yang, P. , Chen, J. , Liu, M.-H. , Lin, C. . Solvothermal synthesis, crystal structure and photoluminescence property of a 3D Lead(II) coordination polymer based on terephthalic acid . | Jiegou Huaxue , 2016 , 35 (1) , 61-68 . |
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Porous cocoanut activated carbon was modified using tree chemical methods: tetraethylenepentamine (TEPA) modified directly (AC), firstly oxidized by HNO3solution (10%) for 4 h at 353 K then TEPA modified (HNO3+TEPA) and firstly alkalified by KOH solution (5 mol/L) for 4 h at 353 K then TEPA modified (KOH+TEPA). The results show that KOH reduction on AC improved the effect of the modification, HNO3oxidation on AC has no significant effect on modification. The CO2adsorption capacity of OH-TEPA-AC measured using a thermogravimetric analyzer (TGA) in simulated flue gas conditions (10vol% CO2, 90vol% N2) was about 1.182 mmol/g at 303 K, the dynamic adsorption capacity was between 1.192-1.215 and 0.970-1.152 mmol/g with or without the presence of water during ten cycles of adsorption/desorption. Dynamics analysis shows that the average isosteric heat of adsorption was about -52 kJ/mol, so OH-TEPA-AC was likely to be satisfactory in practical applications of capturing CO2. ©, 2015, Journal of Functional Materials. All right reserved.
Keyword ：
Activated carbon Activated carbon Adsorption Adsorption Carbon dioxide Carbon dioxide Flue gases Flue gases Nitric acid Nitric acid
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| GB/T 7714 | Lin, Xiaoying , Zhang, Huiyun , Liu, Yamin et al. Study of the multiple modification of cocoanut activated carbon and its adsorption properties of CO2in simulated flue gas [J]. | Journal of Functional Materials , 2015 , 46 (17) : 17017-17021 . |
| MLA | Lin, Xiaoying et al. "Study of the multiple modification of cocoanut activated carbon and its adsorption properties of CO2in simulated flue gas" . | Journal of Functional Materials 46 . 17 (2015) : 17017-17021 . |
| APA | Lin, Xiaoying , Zhang, Huiyun , Liu, Yamin , Jiang, Mei , Liu, Minghua , Bai, Shengjie et al. Study of the multiple modification of cocoanut activated carbon and its adsorption properties of CO2in simulated flue gas . | Journal of Functional Materials , 2015 , 46 (17) , 17017-17021 . |
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以椰壳活性炭为载体，进行HNO3＋TEPA复合改性和KOH＋TEPA复合改性，并考察活性炭复合改性前后对模拟烟气中CO2的吸附性能，结果表明，KOH＋TEPA复合改性后吸附性能提高，HNO3＋TEPA复合改性后吸附性能降低。KOH＋TEPA复合改性后的活性炭（OH‐TEPA‐AC）在303K条件下，对模拟烟气（10％（体积分数）CO2，90％（体积分数）N2）中CO2的静态吸附量从改性前的06．70mmol／g提高到1．182mmol／g。在303K条件下，活性炭OH‐TEPA‐AC对模拟烟气中CO2的动态吸附量稳定在09．70～1．152mmol／g间，对引入水分的烟气中CO2的吸附量稳定在11．92～12．15mmol／g间，表现出良好的循环吸附性能及对水分的稳定性。动力学分析表明，OH‐TEPA‐AC对模拟烟气中CO2的平均吸附热值为－520．kJ／mol，保证了工业实际应用的经济性。
Keyword ：
CO2吸附 CO2吸附 HNO3+TEPA HNO3+TEPA KOH+TEPA KOH+TEPA 复合改性 复合改性 椰壳活性炭 椰壳活性炭
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| GB/T 7714 | 林小英 , 张惠云 , 刘亚敏 et al. 椰壳活性炭复合改性及其对模拟烟气中 CO2的吸附性能 [J]. | 功能材料 , 2015 , (17) : 17017-17021 . |
| MLA | 林小英 et al. "椰壳活性炭复合改性及其对模拟烟气中 CO2的吸附性能" . | 功能材料 17 (2015) : 17017-17021 . |
| APA | 林小英 , 张惠云 , 刘亚敏 , 江梅 , 刘明华 , 白生杰 et al. 椰壳活性炭复合改性及其对模拟烟气中 CO2的吸附性能 . | 功能材料 , 2015 , (17) , 17017-17021 . |
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