搜索结果: 1-15 共查到“矿床学与矿相学 Al”相关记录87条 . 查询时间(0.218 秒)
Glassy (Al,Fe)2O3 in bauxites from the Southern Highlands of NSW
Glassy (Al,Fe)2O3 bauxites the Southern Highlands NSW
2012/3/30
Across the Southern Highlands of New South Wales are sporadic ferruginous bauxites, mostly overlying Eocene basalts (Owen 1954). Abundant throughout these deposits are hard, vitreous, highly magnetic ...
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...
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...
Al-M-改性膨润土复合型废水处理剂的制备及应用研究
Al-M-改性膨润土 废水处理 制备 应用
2011/11/7
日益严峻的环境水污染形势，已经对生态环境产生了危害，对人们的生活和生产产生了巨大的影响和压力，引起了社会的高度关注。研制性能优良、价格低廉、对环境友好的新型水处理剂是解决环境水污染的关键问题之一。本论文以改性钙基膨润土为载体，通过化学反应和高温焙烧等方法负载高活性的Al_2O_3和另一活性组分M，研制成了一种性能较好的Al-M-改性膨润土废水处理剂(简称AMB废水处理剂)，用红外光谱对其结构进行了...
Al-CTMAB复合膨润土同时吸附处理水中菲和磷酸根
无机-有机复合膨润土 菲 磷酸盐 吸附 水处理
2012/3/14
用AlCl3和溴化十六烷基三甲基铵(CTMAB)共同改性制得无机-有机复合膨润土Al-CTMAB-Bent,并研究其同时吸附处理水中菲和PO43-的性能.结果表明,在菲和PO43-的初始浓度分别为1 mg/L和5 mg/L(以P计)、水土比为800∶1时,Al-CTMAB-Bent对菲和PO43-的去除率分别为96.3%和90.2%.Al-CTMAB-Bent沉降性能良好,沉降1 h后剩余浊度比相...
Sorption of Organic Compounds by Al And Zr-Hydroxy-Intercalated and Pillared Bentonite
Activated Carbon Al-Pillared Montmorillonite Atrazine 3-Chloroaniline 3-Chlorophenol Sorption Zr-Pillared Montmorillonite
2011/12/6
Abstract: Owing to their large and chemically active surface, hydroxy-intercalated and pillared clays can be potent sorbents for organic compounds. The sorption behavior of Al and Zr-hydroxy-intercala...
Enhanced Thermal Stability of Al-Pillared Smectites Modified with Ce and La
Bentonite Ce La Pillared Clays
2011/12/6
Abstract: A commercial bentonite (primarily smectite) from Fischer Scientific Company (F bentonite) and a natural bentonite from Peru (P bentonite) were used in the preparation of pillared clays with ...
Al-MgMMH正电胶体粒子体系的流变学
混合金属氢氧化物 触变性 流变学 悬浮体
2012/3/5
研究了铝ö镁混合金属氢氧化物(MMH)粒子含量、pH值、电解质等因素对MMH悬浮体流变学的影响，发现MMH粒子浓度的增加使悬浮体从牛顿型流体变为带有屈服值的假塑性流体；在相对很低的粒子浓度(2%)时，通过改变粒子表面化学状态和粒子周围的介质环境可以改变悬浮体的流动形态； MMH悬浮体触变性结构与高pH值时合成锂皂石悬浮体的结构极为相似，是粒子间的静电排斥作用所致。
The Effect of Al on Fe Oxides. XIX. Formation of Al-Substituted Hematite from Ferrihydrite at 25C and pH 4 To 7
Al-Substituted Hematite Formation of Fe Oxide Hyperfine Fields Structural OH Synthesis of Fe Oxides Unit-Cell Size
2011/12/5
Abstract: Iron oxides in surface environments generally form at temperatures of 25 ?10癈, but synthesis experiments are usually done at higher temperatures to increase the rate of crystallization. To m...
Reactive Al-O-Al sites in a natural zeolite: Triple-quantum oxygen-17 nuclear magnetic resonance
Reactive Al-O-Al sites natural zeolite Triple-quantum oxygen-17 nuclear magnetic resonance
2012/4/1
In framework aluminosilicate materials (e.g., feldspars, zeolites and many others), it is generallyassumed that AlOtetrahedra do not share corners, i.e., that Al-O-Al oxygen sites are avoided whenstoi...
Khmaralite, a new beryllium-bearing mineral related to sapphirine: A superstructure resulting from partial ordering of Be, Al, and Si on tetrahedral sites
Khmaralite beryllium-bearing mineral related to sapphirine superstructure resulting partial ordering Be Al Si tetrahedral sites
2012/4/1
Khmaralite, Ca Mg Fe Fe Al Be B Si O , is a new mineral closely related to.04 5.46 14.26 1.43 0.02 4.80 400.12 1.87sapphirine from Khmara Bay, Enderby Land, Antarctica. It occurs in a pegmatite metamo...
Theoretical studies on aluminate and sodium aluminate species in models for aqueous solution: Al(OH)3, Al(OH)4-, and NaAl(OH)4
Theoretical studies aluminate sodium aluminate species models aqueous solution Al(OH)3 Al(OH)4 NaAl(OH)4
2012/4/1
Ab initio quantum mechanical calculations were performed on Al(OH) , Al(OH) , NaAl(OH)and related species with varying numbers of explicit water molecules to elucidate the structural,spectral and ener...
Sorption of Heavy-Metal Cations by Al and Zr-Hydroxy-Intercalated and Pillared Bentonite
Heavy Metals Intercalation Montmorillonite Pillared Clay Sorption
2011/12/7
Abstract: The sorption of Cd, Cu, Pb, and Zn ions by Na-rich bentonite, Al and Zr-pillared Na-rich bentonite (Al-MX80, Zr-MX80), the uncalcined hydroxy-intercalated precursors (HAl, HZr-MX80), and com...
The synthesis and crystal structure of CaAlFSiO4, the Al-F analog of titanite
synthesis and crystal structure Al-F analog titanite CaAlFSiO4
2012/3/31
Aluminum-rich titanites [Ca(Ti,Al)(O,F)SiO ] with X > 0.53 [X = Al/(Al+Ti)], including the
pure end-member CaAlFSiOwere synthesized for the first time in a high-pressure experimental
was determined...