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为了提高我国低品位膨润土资源的工业附加值,本论文以山东某地低品位膨润土为原料,在工艺矿物学研究基础之上,采用水力旋流器-离心机联合提纯工艺研究了药用蒙脱石的提纯工艺以及提纯产品的药用性能。研究发现膨润土中主要杂质矿物为α-石英和长石,膨润土颗粒粒度大小和蒙脱石含量负相关,蒙脱石主要分布于-325目粒级中,该粒级中蒙脱石分布率达到46.03%。利用水力旋流器-离心机联合分选工艺,在水力旋流器给矿浓度10%,给矿压力0.05MPa,沉砂嘴直径为10mm时进行预选,蒙脱石品位提高到51.41%,相应粗精矿产率为40.98%;预选粗精矿经过离心机一次精选,三次扫选进行深度提纯,在给矿浓度5%,给矿速度1.50m~3/h,离心机转速2 304r/min的工艺条件下,获得综合精矿品位为93.56%,合计产率为9.06%,回收率为22.91%,取得较理想的分选指标,制备出的高纯蒙脱石吸附力(0.48g/g)等各项指标较好的满足了药用蒙脱石的质量指标要求,实现了低品位膨润土资源的高附加值利用。 相似文献
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新疆巴里坤膨润土的红外光谱分析 总被引:3,自引:2,他引:1
对巴里坤膨润土不同颜色的典型样品进行红外光谱测试分析,结果表明:巴里坤膨润土矿Ⅱ的膨润土的强吸收波谱出现在3627 cm-1(高频区)、1040 cm-1(中频区)、531 cm-1、470 cm-1(低频区)附近;5个代表样品的红外光谱曲线轮廓基本上一致,但仍存在一定的差异,不同颜色的膨润土因其化学成分的差异,在红外光谱曲线上有所不同,在3600 cm-1(高频区)附近,1#样品对红外光谱的吸收率较强,归属于Al—O—H的伸缩振动,说明1#样品蒙脱石的含量要高些;在797.64 cm-1(中频区)附近,1#、5#样品对红外光谱的吸收率要弱些,归属于Si—O—Si的反对称伸缩振动,说明SiO2的含量较低。 相似文献
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贵州盘县地区膨润土矿产出地质特征及其物化性能的研究 总被引:1,自引:0,他引:1
膨润土矿在本省尚为缺门矿种。通过对省内钻井泥浆粘土矿的踏勘取样,经X射线衍射、红外光谱和差热等分析、测试手段及物化性能的测定,参照矿产工业要求,首次在贵州盘县地区被前人称为“绿豆岩”的岩层中,圈出了数个膨润土矿体;对矿石及矿石中小于2μm的粘粒矿物进行了物化性能及矿石、矿物的属性研究,确定区内膨润土矿为钙基和酸性钙基膨润土,其矿石中主要矿物——蒙脱石为钙质蒙脱石的属性;该膨润土矿不宜作钻井泥浆原料,但可为油脂脱色剂之用。该地区的膨润土矿有一定的工业价值和开发利用前景。 相似文献
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对于某一特定的膨润土矿,蒙脱石含量与阳离子交换容量呈正相关,以此为依据提出了一种确定蒙脱石含量的新方法——纯样品指标标定法。对山东莱西、潍坊两地膨润土矿的实际测定结果显示,利用纯样品指标标定法确定蒙脱石含量取得了较满意的结果,说明此方法具有较大的使用价值。该方法考虑了膨润土中杂质、蒙脱石层间可交换阳离子类型及端面电荷对测定结果的影响,推荐以钠基土为试样,在pH=4的条件下采用加权法测定蒙脱石含量。 相似文献
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曹俊臣 《矿物岩石地球化学通报》1988,(2)
八十年代以来,世界非金属矿工业蓬勃发展。在目前可用的200种非金属矿中,膨润土是物理化学性质特殊、应用范围甚广的矿种之一。膨润土的深加工和新用途的开拓,不断促进了相应工业的发展,同时也在不断地为科学技术领域提出新的课题。 1.基本特征和分类:膨润土不是一种单矿物名称,而是以蒙脱石(又名胶岭石、微晶高岭石)为主要组份(含量在60%以上)、在水中具有膨胀性和高吸附性的粘土质岩石。又称为膨土岩、斑脱岩、陶土矿、白泥、漂白土等。 相似文献
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Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
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Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozach Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
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正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.) 相似文献
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正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology, 相似文献
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正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.) 相似文献
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正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se- 相似文献
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正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with 相似文献
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正20141609 Chen Guiying(College of Earth Sciences,Guilin University of Technology,Guilin 541004,China);Han Nairen New Materials of Stylophora from the Upper Cambrian of the Jingxi Area,Guangxi,South China(Acta Palaeontologica Sinica,ISSN0001-6616,CN32-1188Q,52(3),2013,p.288-293,2 illus.,12 refs.)Key words:Stylophora,Guangxi 相似文献
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正20140634 Cao Lingmin(Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China);Xu Yi Finite Difference Tomography of the Crustal Velocity Structure in Tengchong,Yunnan Province(Chinese Journal of Geophysics,ISSN0001-5733,CN11-2074/P,56(4),2013,p.1159-1167,6illus.,35refs.,with English abstract) 相似文献