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学者姓名：刘羽
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Abstract ：
采用机械研磨法制备地开石-醋酸铯插层复合物,利用TG-DTA,FTIR,XRD和FESEM表征并分析该插层复合物的形成过程。XRD结果显示地开石的层间距d(002)由0.72nm增至1.42nm,表明醋酸铯已成功进入地开石层间;FTIR谱显示新增3603cm~(-1)峰表明醋酸根离子与地开石内表面羟基形成氢键,新增3548cm~(-1)峰表明有部分水进入地开石层间;TG-DTA结果分析表明,插层复合物在110℃以下可以稳定存在,脱羟基温度降低180℃;FESEM研究表明:地开石骨架清晰,插层后形貌未发生大的变化。结合理论计算,推断水与醋酸铯分子一起进入地开石层间,与地开石内表面羟基相结合,并建...
Keyword ：
地开石 地开石 插层复合物 插层复合物 插层机理 插层机理 醋酸铯 醋酸铯
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| GB/T 7714 | 钟祥华 , 刘羽 , 刘文元 et al. 地开石-醋酸铯插层复合物的制备及机理 [J]. | 材料工程 , 2018 , 46 (07) : 76-82 . |
| MLA | 钟祥华 et al. "地开石-醋酸铯插层复合物的制备及机理" . | 材料工程 46 . 07 (2018) : 76-82 . |
| APA | 钟祥华 , 刘羽 , 刘文元 , 许涛 . 地开石-醋酸铯插层复合物的制备及机理 . | 材料工程 , 2018 , 46 (07) , 76-82 . |
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Potassium acetate (KAc) has been successfully intercalated into dickite through immersion method. Prepared complexes were characterized by XRD, FTIR, TG-DTA, XPS and SEM-EDS analyses. The effectiveness of intercalation and influencing factors were also analyzed. The results confirmed that KAc and H2O were successfully inserted into the interlayer of dickite. The results showed that intercalated rate of dickite by KAc were related to aging time, pH value, reaction temperature, and concentration of KAc solution. From the view of energy and environmental protection, reaction time for 24 h was enough to gain a satisfactory intercalation result. While a good intercalated complex can be obtained on the weak alkaline condition of pH value. A higher concentration of KAc solution was beneficial to intercalate and the reaction temperature below 100 degrees C was proved to be favorable for intercalation. (c) 2017 Published by Elsevier B.V.
Keyword ：
Dickite Dickite Influencing factors Influencing factors Intercalation Intercalation Potassium acetate Potassium acetate
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| GB/T 7714 | Zhong, Xiang-Hua , Liu, Yu , Xu, Tao et al. Influencing factors of intercalation of potassium acetate into dickite using immersion method [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2018 , 742 : 996-1001 . |
| MLA | Zhong, Xiang-Hua et al. "Influencing factors of intercalation of potassium acetate into dickite using immersion method" . | JOURNAL OF ALLOYS AND COMPOUNDS 742 (2018) : 996-1001 . |
| APA | Zhong, Xiang-Hua , Liu, Yu , Xu, Tao , Liu, Wen-Yuan . Influencing factors of intercalation of potassium acetate into dickite using immersion method . | JOURNAL OF ALLOYS AND COMPOUNDS , 2018 , 742 , 996-1001 . |
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Abstract ：
采用机械研磨法制备地开石-醋酸铯插层复合物,利用TG-DTA,FTIR,XRD和FESEM表征并分析该插层复合物的形成过程.XRD结果显示地开石的层间距d(002)由0.72nm增至1.42nm,表明醋酸铯已成功进入地开石层间;FTIR谱显示新增3603cm-1峰表明醋酸根离子与地开石内表面羟基形成氢键,新增3548cm-1峰表明有部分水进入地开石层间;TG-DTA结果分析表明,插层复合物在110℃以下可以稳定存在,脱羟基温度降低180℃;FESEM研究表明:地开石骨架清晰,插层后形貌未发生大的变化.结合理论计算,推断水与醋酸铯分子一起进入地开石层间,与地开石内表面羟基相结合,并建立醋酸铯插层地开石的机理模型.
Keyword ：
地开石 地开石 插层复合物 插层复合物 插层机理 插层机理 醋酸铯 醋酸铯
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| GB/T 7714 | 钟祥华 , 刘羽 , 刘文元 et al. 地开石-醋酸铯插层复合物的制备及机理 [J]. | 材料工程 , 2018 , 46 (7) : 76-82 . |
| MLA | 钟祥华 et al. "地开石-醋酸铯插层复合物的制备及机理" . | 材料工程 46 . 7 (2018) : 76-82 . |
| APA | 钟祥华 , 刘羽 , 刘文元 , 许涛 . 地开石-醋酸铯插层复合物的制备及机理 . | 材料工程 , 2018 , 46 (7) , 76-82 . |
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应用EPMA和LA-ICP-MS微区分析技术,首次揭示了紫金矿田中铜铁硫化物的主、微量元素分布特征。研究表明紫金山铜金矿浅部蓝辉铜矿石的铜矿物具有富Se的特征,其中铜蓝中的Se最高可达1.57%,并出现Se的成分环带特征。LA-ICP-MS的微量元素分析表明蓝辉铜矿和久辉铜矿中含较高的Au(>1×10-6)和Ag,是金、银的重要载体,同时含较高含量的Bi、Sn、As和Se,与次生富集成因存在着显著的区别。紫金山铜金矿和龙江亭铜矿的斑铜矿是重要的Ag和Bi载体,不同阶段的斑铜矿的微量元素有差异,高硫化阶段的斑铜矿Bi含量较高,而中低硫化阶段的斑铜矿Ag和Sn含量较高。黄铜矿含少量的Ag,但出现了...
Keyword ：
LA-ICP-MS分析 LA-ICP-MS分析 微量元素 微量元素 紫金山矿田 紫金山矿田 铜铁硫化物 铜铁硫化物
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| GB/T 7714 | 刘文元 , 陈毓川 , 刘羽 . 紫金山矿田Cu-Fe-S矿物的EPMA和LA-ICP-MS微区元素分析及地质意义 [J]. | 地学前缘 , 2017 , 24 (05) : 39-53 . |
| MLA | 刘文元 et al. "紫金山矿田Cu-Fe-S矿物的EPMA和LA-ICP-MS微区元素分析及地质意义" . | 地学前缘 24 . 05 (2017) : 39-53 . |
| APA | 刘文元 , 陈毓川 , 刘羽 . 紫金山矿田Cu-Fe-S矿物的EPMA和LA-ICP-MS微区元素分析及地质意义 . | 地学前缘 , 2017 , 24 (05) , 39-53 . |
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Vesuvius is a high-risk volcano and the 1631 Plinian eruption is a reference event for the next episode of explosive unrest. A complete stratigraphic and petrographic description of 1631 pyroclastics is given in this study. During the 1631 eruption a phonolite was firstly erupted followed by a tephritic phonolite and finally a phonolitic tephrite, indicating a layered magma chamber. We suggest that phonolitic basanite is a good candidate to be the primitive parental-melt of the 1631 eruption. Composition of apatite from the 1631 pyroclastics is different from those of CO2-rich melts indicating negligible CO2 content during magma evolution. Cross checking calculations, using PETROGRAPH and PELE software, accounts for multi-stage evolution up to phonolite starting from a phonolitic basanite melt similar to the Vesuvius medieval lavas. The model implies crystal settling of clinopyroxene and olivine at 6 kbar and 1220 degrees C, clinopyroxene plus leucite at a pressure ranging from 2.5 to 0.5 kbar and temperature ranging from 1140 to 940 degrees C. Inside the phonolitic magma chamber K-feldspar and leucite would coexist at a temperature ranging from from 940 to 840 degrees C and at a pressure ranging from 2.5 to 0.5 kbar. Thus crystal fractionation is certainly a necessary and probably a sufficient condition to evolve the melt from phono tephritic to phonolitic in the 1631 magma chamber. We speculate that phonolitic tephrite magma refilling from deeper levels destabilised the chamber and triggered the eruption, as testified by the seismic precursor phenomena before 1631 unrest.
Keyword ：
1631 magma chamber 1631 magma chamber 1631 magma composition 1631 magma composition 1631 Vesuvius eruption 1631 Vesuvius eruption apatite chemistry apatite chemistry eruptive triggering eruptive triggering Vesuvius parental melt Vesuvius parental melt
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| GB/T 7714 | Stoppa, Francesco , Principe, Claudia , Schiazza, Mariangela et al. Magma evolution inside the 1631 Vesuvius magma chamber and eruption triggering [J]. | OPEN GEOSCIENCES , 2017 , 9 (1) : 24-52 . |
| MLA | Stoppa, Francesco et al. "Magma evolution inside the 1631 Vesuvius magma chamber and eruption triggering" . | OPEN GEOSCIENCES 9 . 1 (2017) : 24-52 . |
| APA | Stoppa, Francesco , Principe, Claudia , Schiazza, Mariangela , Liu, Yu , Giosa, Paola , Crocetti, Sergio . Magma evolution inside the 1631 Vesuvius magma chamber and eruption triggering . | OPEN GEOSCIENCES , 2017 , 9 (1) , 24-52 . |
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The thermal decomposition and de-hydroxylation process of dickite-potassium acetate (KAc) intercalated complex was studied using thermogravimetric (TG), differential thermal analysis (DTA), XRD and FTIR. The stability of intercalated complex was affected by heat treatment directly. The TG-DTA results showed that four changes had occurred at 64.5, 118, 301 and 406 A degrees C, which can be attributed to (a) the loss of adsorbed water, (b) loss of the water linked to acetate ion in the layer of dickite, (c) decomposition of KAc, and (d) loss of water through de-hydroxylation, respectively. The XRD and FTIR results showed that when the heating temperature exceeded 400 A degrees C, inner surface hydroxyls and inner hydroxyls lost gradually, generating amorphous meta-dickite. Further researches demonstrated that phase transition temperature of meta-dickite and mullite changed a lot through the intercalated KAc.
Keyword ：
Dickite Dickite FTIR FTIR Potassium acetate Potassium acetate TG-DTA TG-DTA Thermal transformation Thermal transformation
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| GB/T 7714 | Zhong, Xiang-hua , Liu, Yu , Xu, Tao et al. Studies on the thermal behavior and decomposition mechanism of dickite-potassium acetate complexes [J]. | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY , 2017 , 129 (2) : 1095-1102 . |
| MLA | Zhong, Xiang-hua et al. "Studies on the thermal behavior and decomposition mechanism of dickite-potassium acetate complexes" . | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 129 . 2 (2017) : 1095-1102 . |
| APA | Zhong, Xiang-hua , Liu, Yu , Xu, Tao , Liu, Wen-yuan . Studies on the thermal behavior and decomposition mechanism of dickite-potassium acetate complexes . | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY , 2017 , 129 (2) , 1095-1102 . |
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This paper would first present the distribution of minor and trace elements in the Cu-Fe-S minerals in the deposits of Zijinshan orefield by using EPMA and LA-ICP-MS micro-analysis. The results show copper minerals from the upper Zijinshan open-pit have the distinct high Se contents, of which covellite develops the good shape of selenium zoning with the highest Se of 1.57%. LA-ICP-MS micro-analysis showed that the digenite and djurleite contain significant concentration of Au (>1×10-6) and Ag, and are the major gold-carrier, in which also have different trace element signatures with significant concentration of Bi, Se, and Sn compared to the secondary digenite. Bornite is the major carriers of silver and bismuth in Zijinshan orefield, and contanins alternative concentration of Bi and Ag in different mineralized stage. Bornite contains higher Bi and less Ag and Sn in the high sulfidation stage when compared to the low-middle sulfidation stage. Chalcopyrite contains less Ag but highest In contents (~30×10-6), is the major indium-carrier. Besides, ore minerals in Zijinshan orefield all contain significant concentration of Se, Te, Ge and As, which implies that the mineralization in Zijinshan district was intimately related to the volcanism. The occurrence of anomalous zone of W, Sn, Mo, Bi and In in Zijinshan orefield is a potential geochemical indicator of transition between porphyry and high sulfidation mineralization, which indicates a porphyry mineralization in the depth of Zijinshan. © 2017, Editorial Office of Earth Science Frontiers. All right reserved.
Keyword ：
Carrier concentration Carrier concentration Copper compounds Copper compounds Inductively coupled plasma mass spectrometry Inductively coupled plasma mass spectrometry Iron compounds Iron compounds Mass spectrometers Mass spectrometers Mineralogy Mineralogy Ore analysis Ore analysis Ores Ores Selenium Selenium Silver Silver Sulfide minerals Sulfide minerals Tin Tin Trace analysis Trace analysis Trace elements Trace elements
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| GB/T 7714 | Liu, Wenyuan , Chen, Yuchuan , Liu, Yu . EPMA and LA-ICP-MS micro-analysis of Cu-Fe-S minerals in Zijinshan orefield: implications for ore genesis [J]. | Earth Science Frontiers , 2017 , 24 (5) : 39-53 . |
| MLA | Liu, Wenyuan et al. "EPMA and LA-ICP-MS micro-analysis of Cu-Fe-S minerals in Zijinshan orefield: implications for ore genesis" . | Earth Science Frontiers 24 . 5 (2017) : 39-53 . |
| APA | Liu, Wenyuan , Chen, Yuchuan , Liu, Yu . EPMA and LA-ICP-MS micro-analysis of Cu-Fe-S minerals in Zijinshan orefield: implications for ore genesis . | Earth Science Frontiers , 2017 , 24 (5) , 39-53 . |
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地开石在陶瓷、涂料、化妆品及填料的工业应用中有着广泛潜力.在本研究中,挑选紫金山Au-Cu矿床中三种典型的地开石(透明、半透明和不透明)和一种矿区分布广泛的淋滤型地开石,通过电子探针(EPMA),X射线粉末衍射(XRD)、傅立叶红外光谱(FT-IR)和场发射扫描电子显微镜(FESEM)表征矿物学特征.EPMA成分对比分析表明,地开石纯度均较高,Al2O3和SiO2质量分数低,FeO质量分数低,白度很高,可以有效地应用到造纸工业中.XRD和FT-IR结果表明,不透明地开石结晶较好,有序度较高,随着透明度的增加,透明地开石的有序度降低,结晶较差.FESEM分析表明,不透明的地开石晶粒发育较好,片层之间堆积紧密,晶粒横向最大尺寸为5 μm,随着透明度的增加,晶粒横向尺寸减小,透明地开石的晶粒为0.2～1 μm;淋滤型地开石可见假六方状片层相互堆积,但由于酸性淋滤作用,片层上有很多小空洞,且片层的边缘溶解,堆积松散,这种淋滤地开石的间层有利于其他高分子材料插入,可用于制备地开石-高分子复合材料.此外,对紫金山Au-Cu矿床地开石的矿物学特征的研究,弄清了地开石之间的形成关系,以及与矿区的成矿关系.
Keyword ：
地开石 地开石 矿物学特征 矿物学特征 紫金山Cu-Au矿床 紫金山Cu-Au矿床
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| GB/T 7714 | 钟祥华 , 刘羽 , 许涛 et al. 福建紫金山Cu-Au矿床中地开石的矿物学特征 [J]. | 矿物学报 , 2017 , 37 (1) : 7-15 . |
| MLA | 钟祥华 et al. "福建紫金山Cu-Au矿床中地开石的矿物学特征" . | 矿物学报 37 . 1 (2017) : 7-15 . |
| APA | 钟祥华 , 刘羽 , 许涛 , 刘文元 . 福建紫金山Cu-Au矿床中地开石的矿物学特征 . | 矿物学报 , 2017 , 37 (1) , 7-15 . |
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本发明公开了一种利用醋酸钾插层剥片制备超薄地开石的方法。本发明以地开石为原料，通过醋酸钾溶液插层剥片的方法制备超薄地开石。本发明首次采用醋酸钾插层剥片的方法制备超薄地开石，工艺流程简单高效，且经济实用、绿色环保，地开石原料来源丰富、资源利用率高，具有良好的工业前景和社会效益。
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| GB/T 7714 | 钟祥华 , 刘羽 , 刘文元 et al. 一种利用醋酸钾插层剥片制备超薄地开石的方法 : CN201610212311.3[P]. | 2016/4/7 . |
| MLA | 钟祥华 et al. "一种利用醋酸钾插层剥片制备超薄地开石的方法" : CN201610212311.3. | 2016/4/7 . |
| APA | 钟祥华 , 刘羽 , 刘文元 , 许涛 . 一种利用醋酸钾插层剥片制备超薄地开石的方法 : CN201610212311.3. | 2016/4/7 . |
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The Zijinshan orefield is a Cu-Au-Mo-Ag porphyry-epithermal mineralization system of Cretaceous age in southeastern China, comprising the Zijinshan high-sulfidation (HS) Au-Cu deposit, Luoboling porphyry Cu-Mo deposits, Yueyang low-sulfidation Au-Ag-Cu deposit, and Wuziqilong and Longjiangting intermediatesulfidation (IS) Cu deposit. A number of Sn-(W)-sulfides occur in the Zijinshan orefield, including kiddcreekite, hemusite, colusite, vinciennite, stannoidite, mawsonite and kesterite. The occurrence represents the first report of hemusite, colusite and vinciennite in China. The relative abundance and diversity of Sn-(W)-sulfide-bearing assemblages make the Zijinshan orefield possibly unique in the world, and carries implications for the evolution of the mineralizing environment Detailed electron probe studies of the Sn-minerals reveal that kiddcreekite, hemusite, mawsonite, stannoidite and kesterite have compositions close to ideal formulae. In contrast, colusite displays grain-scale zoning expressed by W, Sn and As. Vinciennite displays compositional variation depending on mineralization style: an average composition of Cu10.74Fe3.88Sn(As-0.85,Sb-0.08)S-15.4 in the Zijinshan HS deposit Cu10.71Fe3.9SnAs0.85S15.34 in the Wuziqilong Cu deposit and Cu10.76Fe3.7Sn1.02 (As-0.5,Sb-0.45)S-15.54 with higher Sb contents (3.32%) in the adjacent Longjiangting Cu deposit In the Zijinshan HS Au-Cu deposit, the main Cu-mineral assemblage varies from bornite-rich to digenite- to covellite-rich with increasing depth. Correspondingly, tin mineralogy varies from kesterite at upper levels to stannoidite-dominant at mid-to-upper levels of the copper orebody, to vinciennite- and mawsonite-dominant at depth, implying an increase in sulfidation and oxidation state downwards. Moreover, kiddcreekite is always partially replaced by wolframite and (hypogene) covellite at depth, also indicating overprinting by high-fO(2) and -fS(2) fluids in the covellite stage of mineralization. Kiddcreekite, along with a primary chalcopyrite-pyrite mineral association, occurs widely in the Zijinshan orefield (Zijinshan, Yueyang, Luoboling, Wuziqilong, Longjiangting and Dayanli), and is likely indicative of the early IS stage of epithermal system. Analogous with published data, kiddcreekite most commonly occurs in porphyry-style mineralization, implying the presence of the mineral has potential as an indicator of porphyry systems. Vinciennite-bearing Cu-Sn-As mineral associations occur in a specific position in the Zijinshan HS Au-Cu, Wuziqilong and Longjiangting Cu deposits, indicative of a transitional zone between porphyry and HS epithermal-style mineralization. The occurrence of the identified Sn-(W)-sulfide-bearing assemblages has considerable potential implications for understanding the architecture of a complex porphyry-epithermal environment and for exploration for underlying porphyry copper deposits. There is potential for discovery of a subjacent porphyry Cu deposit within the Zijinshan orefield. (C) 2015 Elsevier B.V. All rights reserved.
Keyword ：
Colusite Colusite Hemusite Hemusite Kiddcreekite Kiddcreekite Porphyry-epithermal ore deposit Porphyry-epithermal ore deposit Sulfidation state Sulfidation state Vinciennite Vinciennite Zijinshan orefield Zijinshan orefield
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| GB/T 7714 | Liu Wenyuan , Cook, Nigel J. , Ciobanu, Cristiana L. et al. Mineralogy of tin-sulfides in the Zijinshan porphyry-epithermal system, Fujian Province, China [J]. | ORE GEOLOGY REVIEWS , 2016 , 72 : 682-698 . |
| MLA | Liu Wenyuan et al. "Mineralogy of tin-sulfides in the Zijinshan porphyry-epithermal system, Fujian Province, China" . | ORE GEOLOGY REVIEWS 72 (2016) : 682-698 . |
| APA | Liu Wenyuan , Cook, Nigel J. , Ciobanu, Cristiana L. , Yu, Liu , Qiu Xiaoping , Chen Yuchuan . Mineralogy of tin-sulfides in the Zijinshan porphyry-epithermal system, Fujian Province, China . | ORE GEOLOGY REVIEWS , 2016 , 72 , 682-698 . |
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