The Characteristics of Adsorption and Desorption of Rare Earth Elements by the Main Types of Soils of China

The adsorption-desorption behavior of the mixed rare earth elements(RE)on the main types ofsoils of China,kaolinite and synthetic oxides was studied.The isothermal adsorption of RE was fitted toLangmuir.Freundlich and Temkin equations.The main factors determining the RE adsorption capacity ofthe soils are the type of clay mineral and the content of amorphous iron oxide in the soils.The above two fac-tors and the pH of soil determine the RE adsorption ability of the soils.The soil and synthetic iron,manga-nese oxides strongly adsorb RE specifically.     

Geochemical Characteristics of Rare Earth Elements in Different Types of Soils in China

ＧｅｏｃｈｅｍｉｃａｌＣｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆＲａｒｅＥａｒｔｈＥｌｅｍｅｎｔｓｉｎＤｉｆｅｒｅｎｔＴｙｐｅｓｏｆＳｏｉｌｓｉｎＣｈｉｎａＷａｎｇＬｉｊｕｎ（王立军），ＺｈａｎｇＳｈｅｎ（章申），ＧａｏＸｉａｏｊｉａｎｇ（高效江），Ｌｉｕ...     

稀土元素的特殊性质及其应用

本文从稀土元素微观结构角度，揭示了稀土元素的某些特殊性质，并指出这种特性与应用机理有必然的联系。从而启迪稀土使用者，掌握和了解稀土的基本特性，才能自由地驾驭稀土的应用。     

Geochemical Behaviour of Rare Earth Elements in the Erdaogou Gold Deposit

ＧｅｏｃｈｅｍｉｃａｌＢｅｈａｖｉｏｕｒｏｆＲａｒｅＥａｒｔｈＥｌｅｍｅｎｔｓｉｎｔｈｅＥｒｄａｏｇｏｕＧｏｌｄＤｅｐｏｓｉｔＰａｎｇＪｉａｎｇｌｉ（庞奖励）（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｇｒａｐｈｙ，ＳｈａｎｘｉＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，...     

Effect of Rare Earth Elements on Growth Dynamics of Austenite in 60CrMnMo Steel

６０ＣｒＭｎＭｏｓｔｅｅｌｉｓｕｓｅｄｆｏｒｍａｋｉｎｇｈｏｔｒｏｌｓ．Ｔｈｅｈｏｔｒｏｌｓｅｘｐｅｒｉｅｎｃｅａｌｔｅｒｎａｔｉｎｇｍｅｃｈａｎｉｃａｌ,ｔｈｅｒｍａｌａｎｄｆｒｉｃｔｉｏｎａｌｌｏａｄｄｕｒｉｎｇｒｏｌｉｎｇ．Ｉｔｓｂｏｄｙｉｓ...     

Geochemistry of Rare Earth Elements in Hydrothermal Ore Deposit in Heishan Area, Shaanxi Province

ＭａｎｙｈｙｄｒｏｔｈｅｒｍａｌｏｒｅｄｅｐｏｓｉｔｓｗｅｒｅｆｏｕｎｄｉｎＨｅｉｓｈａｎａｒｅａ,ｓｏｕｔｈｅｒｎｍａｒｇｉｎｏｆｔｈｅＸｉａｏｑｉｎｌｉｎｇｇｏｌｄｏｒｅｒｅｇｉｏｎ．Ｔｈｉｓｐａｐｅｒｄｉｓｃｕｓｅｓｔｈｅｃｈａｒａｃｔｅｒｉ...     

Characteristic of Rare EarthDistribution in Biologic Chains of RE-Rich Back-ground Regions

Characteristic of Rare EarthDistribution in Biologic Chains of RE-Rich Back-ground Regions     

稀土尾矿库周边地下水中稀土元素含量测定与分布规律的研究

现行的地下水监测方法中,常利用水溶性稀土元素的含量判断其生态效应,而吸附在固体颗粒物、胶体及微生物上的稀土元素在检测中往往被忽略。本实验采用不同孔径的滤膜对尾矿库周边地下水进行连续过滤,测定滤上物及滤液中稀土元素含量,并对其进行了归一化处理,进而分析地下水中稀土元素的分布模式。结果表明,0.45μm滤膜滤上物中稀土元素含量远高于0.45μm滤液中稀土元素含量。滤后水样中稀土元素含量随滤膜孔径减小而降低,其分布规律均表现为Ce负异常,Eu正异常,但水体中稀土元素与理化指标间的相关性发生了改变。说明经过不同孔径滤膜处理后,水体中稀土元素与固体颗粒物的络合性质发生改变。因此,只分析水溶性稀土元素含量来判断地下水中稀土元素生态效应是有失偏颇的。     

Geochemical Behavior of Rare Earth Elements in Jianchaling Ore Depositin Shaanxi Province

Ｊｉａｎｃｈａｌｉｎｇｏｒｅｄｅｐｏｓｉｔｉｓａｐｏｌｙｍｅｔａｌｌｉｃｏｒｅｄｅｐｏｓｉｔｒｅｌａｔｅｄｔｏｕｌｔｒａｂａｓｉｃｒｏｃｋ．Ａｎｉｃｋｅｌｏｒｅｄｅｐｏｓｉｔｗａｓｄｉｓｃｏｖｅｒｅｄｉｎｕｌｔｒａｂａｓｉｃｒｏｃｋｄｕｒｉｎｇ１９７０ｓａｎｄａｇｏｌｄｏｒｅｄｅｐｏｓｉｔｗａｓｄｉｓｃｏｖｅｒｅｄｉｎｃｏｎｔａｃｔｚｏｎｅｂｅｔｗｅｅｎｔｈｅｕｌｔｒａｂａｓｉｃｒｏｃｋａｎｄｄｏｌｏｍｉｔｅｉｎｔｈｅｅｎｄｏｆ１９８０ｓ．Ｂｕｔｔｈｅｇｅｎｅｓｉｓｏｆｔｈｅｏｒｅｄｅｐｏｓｉｔ…     

Lubricity of Rare Earth Compounds in Oil

Ｉｎｒｅｃｅｎｔｙｅａｒｓ，ｔｈｅａｐｐｌｉｃａｔｉｏｎｏｆｒａｒｅｅａｒｔｈｃｏｍｐｏｕｎｄｓｉｎｔｈｅｔｒｉｂｏｌｏｇｉｃａｌｆｉｅｌｄｈａｓｂｅｃｏｍｅｏｎｅｏｆｔｈｅｍｏｓｔｉｎｔｅｒｅｓｔｉｎｇｒｅｓｅａｒｃｈｔｏｐｉｃｓｆｏｒｔｒｉｂｏｌ...     

对我国二十种土壤中稀土元素形态分组的研究

本文提出了土壤中稀土元素形态分组的方法,对我国20种土壤中稀土元素形态分组特征进行了评价。结果表明,土壤中稀土元素主要以残渣态存在,其次为氧化铁结合态和松结有机态。在碱性土壤中碳酸盐结合态仅次于氧化铁结合态,中酸性土壤中紧结有机态仅次于松结有机态,而碱性土壤中紧结有机态极低。土壤中交换态和氧化锰结合态稀土元素均比较低。     

Simultaneous Determination of Rare Earth Elements byDualSystem Iterative Target Transformation Factor Analysis

Ｉｔｉｓｖｅｒｙｄｉｆｉｃｕｌｔｔｏｄｅｔｅｒｍｉｎｅｉｎｄｉｖｉｄｕａｌｒａｒｅｅａｒｔｈｉｎｉｔｓｍｉｘｔｕｒｅｂｙｓｐｅｃｔｒｏｐｈｏｔｏｍｅｔｒｙ．Ｔｈｉｓｉｓｂｅｃａｕｓｅｍａｎｙｏｆｈｉｇｈｓｅｎｓｉｔｉｖｅｃｈｒｏｍｏｇｅｎｔｉｃｒｅ...     

Anti-Influenza Virus Activity of Heteropoly Complexes Containing Rare Earth Elements

ｎｆｌｕｅｎｚａ，ｕｓｕａｌｙｃａｕｓｅｄｂｙｉｎｆｌｕｅｎｚａｖｉｒｕｓ，ｉｓａｋｉｎｄｏｆｗｏｒｌｄｗｉｄｅｉｎｆｅｃｔｉｏｕｓｄｉｓｅａｓｅｓｔｈａｔｃａｎｎｏｔｂｅｃｏｎｔｒｏｌｅｄｅｆｅｃｔｉｖｅｌｙａｔｐｒｅｓｅｎｔ．Ｔｈｅｍｏｓｔｗｉｄ...     

Effects of Rare Earth Elements on Properties and Structure of WC－14TiC－8Co Cemented Carbide

ＥｆｆｅｃｔｓｏｆＲａｒｅＥａｒｔｈＥｌｅｍｅｎｔｓｏｎＰｒｏｐｅｒｔｉｅｓａｎｄＳｔｒｕｃｔｕｒｅｏｆＷＣ－１４ＴｉＣ－８ＣｏＣｅｍｅｎｔｅｄＣａｒｂｉｄｅＨｅＣｏｎｇ－Ｘｕｎ；（贺从训）；ＷａｎｇＹｏｕ－Ｍｉｎｇ；（汪有明）；ＬｉｎＣｈｅｎ－Ｇｕ...     

Report on Rare Earth Market Evolution and Involvement of Rhone－Poulenc in the Market

ＲｅｐｏｒｔｏｎＲａｒｅＥａｒｔｈＭａｒｋｅｔＥｖｏｌｕｔｉｏｎａｎｄＩｎｖｏｌｖｅｍｅｎｔｏｆＲｈｏｎｅ－ＰｏｕｌｅｎｃｉｎｔｈｅＭａｒｋｅｔＭａｔｔｈｅｗｓＪＤ；ＶａｎｄｅｒｓｔｒｉｃｈｔＪＰ（Ｒｈｏｎｅ－ＰｏｕｌｅｎｃＲａｒｅＥａｒｔｈｓａｎｄ...     

Effects of Rare Earth Elements on the Properties ofAmorphous NiB Alloy Catalyst

Effects of Rare Earth Elements on the Properties ofAmorphous NiB Alloy Catalyst     

Study on Rare Earth Ferrocene Monocarboxylate Complexes

ＳｔｕｄｙｏｎＲａｒｅＥａｒｔｈＦｅｒｒｏｃｅｎｅＭｏｎｏｃａｒｂｏｘｙｌａｔｅＣｏｍｐｌｅｘｅｓＬｉＭｅｉ（李梅）（ＢａｏｔｏｕＲａｒｅＥａｔｈＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅ，Ｂａｏｔｏｕ０１４０１０，Ｃｈｉｎａ）ＳｕｎＹｕａｎｈｏｎｇ（孙元洪...     

Electrodeposition of Rare Earth Metals and Their Alloys in Organic Electrolytes

Ｔｈｅｆｉｌｍｓｏｆｒａｒｅｅａｒｔｈｓｈａｖｅｍａｎｙｆｕｎｃｔｉｏｎａｌｐｅｒｆｏｒｍａｎｃｅｓａｎｄｈａｖｅｂｅｅｎｗｉｄｅｌｙａｐｐｌｉｅｄｉｎｍａｇｎｅｔｉｃ，ｏｐｔｉｃａｌ，ｎｕｃｌｅａｒ，ｓｕｐｅｒｃｏｎｄｕｃｔｉｎｇｍａｔｅｒｉ...     

Study on Laser Drilling in Rare Earth Magnets

ＳｔｕｄｙｏｎＬａｓｅｒＤｒｉｌｉｎｇｉｎＲａｒｅＥａｒｔｈＭａｇｎｅｔｓＬｉｕＬｉｍｉｎ（刘丽敏），ＬｉＣｈａｎｇｊｉａｎｇ（李长江）（ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＣｈｅｍｉｃａｌＴｅｃｈｎｏｌｏｇｙ，Ｂｅｉｊｉｎｇ１０００２９，Ｃｈｉｎ...     

Synthesis of Polyester and Copolyester Catalyzed by Rare Earth Compounds

Synthesis of Polyester and Copolyester Catalyzed byRare Earth Compounds