搜索结果: 31-45 共查到“矿床学与矿相学 Palygorskite”相关记录98条 . 查询时间(0.046 秒)
Octahedral cation distribution in palygorskite
Palygorskite Fe-rich Mg-rich structure near infrared spectroscopy trioctahedral
2011/11/14
The OH speciation of 18 palygorskite samples from various localities were evaluated by near infrared spectroscopy (NIR) and compared to the corresponding octahedral composition derived from independen...
Sorptive removal of tetracycline from water by palygorskite
Clay Palygorskite Pharmaceutical Sorption Tetracycline
2011/11/4
Extensive use of pharmaceuticals and growth hormone in farm animal and live stocks has resulted in their frequent detection in soils, groundwater, and wastewater. The fate and transport of these compo...
Preparation and Properties of Nanocomposites Containing Polypropylene and Palygorskite
Mechanical Properties Palygorskite Polypropylene Composite Surface Free Energy
2011/11/14
Polypropylene-palygorskite composites were prepared by melt mixing, using polypropylene as polymer matrix and palygorskite as inorganic components. The couple-agent modification of palygorskite was in...
Genesis and distribution of palygorskite and associated clay minerals in soils and sediments of southern Mashhad
Palygorskite Loess Clay minerals Paleoclimate Granite
2011/11/7
The occurrence of palygorskite and its formation conditions in soils and sediments were studied along a transect covering granitic hilly lands to marly hilly lands in southern Mashhad. Based on format...
Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of palygorskite
Palygorskite Rietveld synchrotron X-ray diffraction time-resolved
2011/11/7
Rietveld refinements using synchrotron powder X-ray diffraction data were used to study the crystal structure and dehydration behavior of pure monoclinic palygorskite samples from Korea and Alaska. Th...
The Impact of EC and pH on the Adsorption of Zn and Cd by Palygorskite Mineral
Palygorskite Zn Cd Langmuir Freundlich adsorption
2011/11/4
The effects of various experimental parameters were investigated using a batch adsorption technique. Adsorption of Cd and Zn by pure palyorskite as a function of pH(pH 6, 8 and 10), EC (EC 4, 6 and 8)...
Preparation and Analysis of Nano-Palygorskite and its Modified PF
Compound Nano-Palygorskite Preparation
2011/11/14
This paper introduce a way to prepare Guizhou palygorskite mineral nanoparticles by dry-wet ball milling and modified its surface, with adding it in pre-polymer and dispersing with supersonic disperse...
Discussion on “Aiban SA (2006) Compressibility and swelling characteristics of Al-Khobar Palygorskite, eastern Saudi Arabia.Engineering Geology 87(3–4):205–219”
Palygorskite Swelling Compressibility
2011/11/8
The evolution of expansive clay minerals including palygorskite in the sedimentary soils of eastern Saudi Arabian must be understood in light of the prevalent
climatic and environmental conditions an...
Reply to the Discussion by Shahid Azam on “Aiban, SA (2006) Compressibility and swelling characteristics of Al-Khobar Palygorskite, eastern Saudi Arabia,Engineering Geology 87(3–4):205–219”
Palygorskite Expansive material Arabian shelf Differential thermal analysis Swell potential Swelling pressure
2011/11/11
The author would like to express his thanks and appreciation to the discusser for his interest in the paper and for the comments
raised. The discusser raised a few points, and it seems that he is loo...
Preparation and decoloration property of polystyrene-grafted palygorskite nanoparticles
Nanocomposites Polymers Palygorskite Reverse atom transfer radical polymerization
2011/11/4
The polymerization of styrene on inorganic palygorskite nanorods was carried out by reverse atom transfer radical polymerization (RATRP) in
a completely controlled manner to form structurally well-de...
Stabilization of aqueous suspensions of palygorskite by thermal vapour pressure shock explosion (TSE) treatment
clay minerals palygorskite thermal vapour pressure shock explosion
2011/11/10
Abstract A device was constructed in which a clay suspension is hermetically heated at 220°C for a few minutes. This thermal treatment is accompanied by a pressure increase in the cell. Once the valv...
Kinetic and isothermal studies of lead ion adsorption onto palygorskite clay
Lead Palygorskite clay Adsorption capacity Kinetic Isotherm
2011/11/7
The use of a natural palygorskite clay for the removal of Pb(II) from aqueous solutions for different contact times, pHs of suspension, and
amounts and particle sizes of palygorskite clay were invest...
The surface energy of palygorskite
Adsorption of water Palygorskite Surface energy Surface tension
2011/11/4
An average value for the surface energy (÷S) of palygorskite was determined from experimental data of spreading pressure, the surface tension
of water and its contact angle using a formula based on ...
Compressibility and swelling characteristics of Al-Khobar Palygorskite, eastern Saudi Arabia
Palygorskite Expansive material Arabian shelf Gypsum Swell potential Swelling pressure
2011/11/4
Expansive soils are found in different locations in eastern Saudi Arabia. The area is arid with high temperatures, highly variable humidity and an excessive rate of evaporation compared to the low pre...
Some thermal characteristics of a mineral mixture of palygorskite, metahalloysite, magnesite and dolomite
dehdyration dehydroxylation metahalloysite palygorskite thermal analysis XRD
2011/11/10
Abstract An industrial raw material taken from Sivrihisar (Eskişehir, Turkey) region was heat-treated at different temperatures in the range of 100–1000�C for 2 h. The volumetric percenta...