JOURNAL OF RARE EARTHS (Special Issue) Proceedings of the 2nd International Conference on Rare Earth Development and Application Vol.1 Beijing, China May 27-31, 1991 The Chinese Society of Rare Earths HANNOV£:R Edited by Xu Guangxian Prof, and Director of Inorganic Chemistry Division Beijng University Xiao Jimei Prof, and Chairman of Department of Metal Physics University of Science and Technology Beijing Yu Zongsen Prof, of Minsitry of the Metallurgy Industry Chen Minbo Prof, of Shanghai Institute of Organic Chemistry Academia Sinica International Academic Publishers A Pergamon-CNPIEC Joint Venture
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JOURNAL OF RARE EARTHS (Special Issue)
Proceedings of the2nd International Conference onRare Earth Development andApplicationVol.1
Beijing, ChinaMay 27-31, 1991The Chinese Society of Rare Earths HANNOV£:R
Edited by
Xu GuangxianProf, and Director of Inorganic Chemistry Division
Beijng University
Xiao JimeiProf, and Chairman of Department of Metal Physics
University of Science and Technology Beijing
Yu Zongsen
Prof, of Minsitry of the Metallurgy Industry
Chen MinboProf, of Shanghai Institute of Organic Chemistry
Academia Sinica
International Academic PublishersA Pergamon-CNPIEC Joint Venture
CONTENTS
Foreword '. v
Welcoming Speech vii
Section A RE Chemistry
Coordination Chemistry
The Luminescence of Europium with /?-Dicarbonilic Ligands and its Analytical ApplicationN.A. Tishchenko, V.V. Tishchenko, G.I. Gerasimenko, A.I. Markina 3
Spectxophotometric and Potentiometric Study of Binary and Ternary Complexes ofRare Earth Metals IonsCIII) with Spadns and NTA or EDTA as Primary Ligands
Puzikov E.A., Khmylcv I.V., Pyartman A.K 4
The Hard Base [C1OJ as Tridendate Ligand in Anhydrous Complexes of Lanthanide IonsFrederic Favicr and Jean-Louis Pascal 7
Preparation and Structural Characterization of Lanthanum Hydroxide Dihydrogen DiphthalateMonohydrate
Jutang Sun, Songnian Yao, Xiuzhen Du, Shengyun Chen 11
Synthesis and Structure Studies of A Novel Tetranuclear Complex,
Relationship Between the Structures of Monoalkyl t-Butylphosphonates and TheirExtraction Behaviours on Yb(III), Lu(III)
Ye Weizhen, Xu Qingren, Shen Dingzhang 19
Research on Separation of Rare Earths by Cation Exchange FibreLunyan He, Changming Yang, Ziyin Gu, Pinggui Hu, Sinan Wang, Xiaoyan Jiao 22
-x l -
Pr and Nd Perchlorate Complexes with Meso— and Recbis (Phenylsulfinyl) EthaneZhang Ruohua, Liu Qunying 27
Infared Spectra and X-ray Photoelectron Spectra of the LanthanideComplexes with Diethyl Sulfoxide
Lui Jinxin, Zhang Liying, Sun Yuanhong 33
Synthesis and Magnetism of Binuclear Pr(Iir)-Pr(III) and Gd(IH)-Gd(III) ComplexesUsing the Dianions of Chloranilic Acids as Bridging Ligands
Jiang Zonghui, Liu Zongming, Liao Daizheng, Wang Genglin 36
The Study of l-phenyl-3-methyl-4-benzoyl-5-phrazolone (PMBP) Complex of Tb4+
Pang Lun, Chen Jinming, Chen Ronglian 41
Separation of Rare Earths from Zinc, Calcium, and Magnesium with P507 Levextrel ResinLiang Yuanming, Liu Zhanliang, Lin Miaojia, Huang Yulin • 45
Sensitized Luminescence Properties and Stability Constants oflndole Derivatives-Terbium (III) Complexes
Lei Hengyi, Yang Yansheng 48
Study on Electronic Structure and Bonding of Rare Earth Phthalocyanine ComplexesLi Zhenxiang, Ni Jiazan 51
Crystal and Molecular Structure of a Cryptate H2Yb(NCS)3(NO3)2(2,2,2) • H2OLi Yuejun, Zhu Qixiu, Xu Zhenhua, Xu Guangxian, I.S. ButterHan Yuzhen, Ma Jiesheng 53
Evidence for Long—Distance Bonding Interaction Around the Pr(III) Atom; X—ray Structure of theTetranuclcar Pr(IH) Complex, [Pr^-OH^Gia-ClkGi-CO^CS^fTHF^fHjO)^ • 2THF
Xu Duanjun, Liu Wentian, Lin Yingzhang, Wu Jinguang,Xu Guangxian, Nobutami Kasai 57
Study on Ternary Complexes of Rare Earth with Mixed Ligands V. Synthesis, Characterization andBioactivity of Indole-3-Propanoic Acid(IPA)-O-Phenanthroline (Phen)-Rare Earth (RE)Ternary Complexes
Wang Liufang, Chen Zhonglin, Wu Jigui, Wang Qi, Jiang Zhicheng, Zhang Bin 60
Synthesis, Characterization and Crystal Structure of Undeca—Coordinated Complexesof Lighter Lanthanide Nitrates with Tetraglycolic Bis(P-Methoxyanilide)
Tan Minyu, Gan Xinmin, Liang Zhijan, Tang Ning, Zhou Zhongyuan, Tan Ganzu 62
The Structural Study of Lanthanide Complex with Nicotinicacid in Aqueous Solutionby Induced Relaxation Ratiomethod
Liu Qingliang, Yu Huaming, Lu Fci, Xie Boping 65
Luminescence and Energy Transfer of Complexes of Ln(III) with Three IndoleDerivative /}-diketones
Wu Shilling, Yang Yensen 68
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Rare Earth Complexes of Polyaza Polycarboxylic Macrocycle(II) Syntheseis andCrystalStructure of Dysprosium Complex of 1—OXA —4,7,10-Triazacyclododecane—N, N', N"—Triacetic Acid
Jin Tianzhu, Zheng Zhiping, Xu Guangxian, Lin Xiuyun, Han Yuzhen 73
Solid Chemistry and Bioinorganic Chemistry
Magnetic and Valence Behaviour of Yb and Eu Ions in the Compounds and AlloysSynthesized Under High Pressure
A.V. Tsvyashchenko 77
Influence of Pressure on the Formation of the New Ternary Laves Compounds in the RE-3dTransition Metal Systems and Magnetic Properties Some of the Compounds
L.N. Fomicheva 84
Magnitude of Tetrad - Effect: A Probable Dependence on Ligand CharacteristicsS.N. Limaye, A.A. Kopyrin, M.C. Saxena 88
Crystal Field Analysis of Eu31 Doped Lanthanum Oxyfluoride, LaOF : Eu3+
Jorma Holsa 91
Evolution of Crystal Field Effects in Reoci SeriesE. Antic-Fidancev, J. Holso, M. Lemaitre-Blaise, P. Porcher 95
Rare Earth Disulfides — A New Group of Layered CompoundsT. Shilkina, I. Vasilyeva 99
Preparation and Characterisation of Single Crystals of RE Alloys and CompoundsY.J. Bi, J.S. Abell, D. Fort 100
Electrosynthesis of Some Rare Earth Metal Thin Films from Aqueous BathsCD. Lokhande, R.D. Madhale I l l
Xanes Study of Valence Fluctuation in Sm^Eu^S SystemR.K. Singhal, K.B. Garg 112
Magnetization and X-ray Studies on YFejH,Kazuo Kanematsu 116
X-ray, Magnetization and Mossbauer Studies of PuNi3 Type Compounds Y^Zr^Fc^and Their Hydrides
Kazuo Itoh, Kazuo Kanematsu 120
Studies on Isonicotinoyl Dithiocarbazate Complexes of Rare EarthsSunita Narswani, Narender K. Kaushik 124
Temperature Dependence of Electrical Conductivity in Li0$_x/2ZnxFe1J_x/2O4 FerritesD. Ravinder 1 3°
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Electrophoretic Investigations of Hydrolysis and Formation of FluorideComplexes of Carrier— Free 155Eu
D. Schumann, A.F. Novgorodov, V.A. Khalkin 134
Cathodoluminescence of RE Optical CrystalsZamoryanskaya M,V 138
Quantum—Chemical Studies of Active Centre Models in Butadiene Polymerizationwith Nd-Al Catalysts
Z.M. Sabirov 140
Interaction of Lanthanum with Montmorillonite at Temperatures Up to 7001J.M. Trillo, M.D. Alba, M.A. Castro, A. Munoz, J. Poyato, M.M. Tobias 142
RE as a Probe of the Ordering Degree of Solid SolutionsN.N. Zlotnikova, N.V. Melnichenko, N.P. Efryushina 151
The Effect of Rare-Earth Elements on the Electron Structure of Bi2_xGd,,Ru2O7 andBi^NdjRujO,: Study by XPS and X-ray Spectroscopy.
Studies on the Interactions Between Baicalin and La(III), Nd(III), Sm(IU.) or Yb(III)Fang Yu, Hu Daodao, Tang Jiayi, Zhu Wenqing and Sun Zuomin 156
The Influence of Rare Earth Dopant on the Properties of NdP5O)4 CrystalLi Baoxiang, Yu Yaqin 160
Study on the Properties of Perovskite Type Rare Earth Gallates CrystalsVang Jianmei, Su Qiang, Wang Hongyan 164
Study on Coordination of Rare Earth with L—Methionine by Potentiometry and CalorimetryGao Feng, Niu Chunji, Ni Jiazuan 167
Synthesis and Luminescence of Eu(DMBM)2 • bipy • NO3
Wang Mingzhao, Jin Linpei, Huang Shihua, Qin Weiping 170
The Influence of Electronic Configuration of Metallic Ion on the Electric Propertiesof Rare Earth Complex Oxides
Ren Yufang 173
Raman and IR Studies on Na5Eu(MoO4)4, NasEu(MoO4)4 and NaEu(MoO4)2
Guo Changxin, Li Bilin 177
XPS Studies of Rare Earth Chloride Complexes with Oxidized GlutathioneZhang Shugong, Niu Chunji, Ni Jiazuan 181
The Syntheses and Structure of AEuI3(A = Rb, Cs)Cao Baopcng, Su Dong, Zhao Xinhua, Wang Shihua 184
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Poisson's Ratio Limits and Effects of Hydrostatic Pressure on the Elastic Behaviour ofSm,_xYxS Alloys in the Intermediate Valence State
Tu Hailing, G. A. Saunders, H. Bach, S. Methfessel 186
About Difference of Sm Valency in Sm,., MXB6 (M = Ba.Eu) Given by LatticeParameter Variation and X—ray Absorption
N.N. Yefremova, L.D. Finkelshtein 196
Preparation and Photoelectrical Properties of (GeS),_x(Nd2S3)x Single CrystalsB.G. Tagiev, G.M. Niftiev, G.B. Gasymov, M.I. Murguzov, A.S. Alekperov 199
Neodymium Spectra in Lanthanum—Gallium SesquisulfideGunduz M. Niftiev, Bahadur G. Tagiev, Firuz B. Askerov, Valerij M. Markushev,Vladislav Th. Zolin, Gjadiminas Y. Dubauskas 203
Effect of Active Center Concentration on Absorption Spectra of Pr3+ in Tetraphosphate CrystalsW. Strek, M. Galczynski 206
Effect of Chemical Environment on the Magnitude of X—ray Resonance Absorptionat L Edges of Heavy Earths
Physico-Chemical Investigations of the Bromides and the Iodides of the LanthanidesDudareva A.G 229
Equilibrium Dissociation Pressures in the System SmH2—SmH3
Longmei Wang, K. Conder, E. Kaldis 230
Determination of Complex Stability Constants of Lanthanides witha - Hydroxy - a - Methylbutyrate
D. Schumann, M. Vobecky 234
Temperature Dependence of Elastic Constants in Rare Earth ChalcogenidesChul Koo Kim, Tae Song Kwon, Kyun Nahm 237
Niobium Surface Modification by Lanthanum in Salt MeltsA. Glagolevskaya, S. Kuznetsov, E. Polyakov, P. Stangrit 240
Nonstoichiometry and Phase Transition of BaSm2Mn2O7
N. Kamegashira, S. Umeno 242
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Kinetic Parameters for the Hydrogenation of Formic Acid Over Lu-Promoted RhodiumCatalysts Obtained by Drifts
Jose J. Benitez, Rafael Alvero, Jose M. Trillo, Jose A. OdriozolaIgnacio Carrizosa 246
Spectroscopy of Tangstates, Niobates and Tantalates of Lanthanides with a Fluorith StructureV.M. Markushev, S.N. Vetkina, V.P. Sirotinkin, A.A. Evdokimov 251
Dynamic Models for Prediction of Physico—Chemical Properties of TernaryChalcogenides of Rare-Earths
The Effects of RE Oxide-Slag Added to Charges on the Quality of Cupola Liquid IronWu Bingyao, Su Huaqin, Wu Qiang, Jiang Jianzhong, Yin Yanshong, Wu Yuning 260
The Surface Tension of Liquid RE Containing Aluminium Alloy and Its Wettibility andAdhesive Power on Model Wall
Wang Tianxiang, Chen Xiawen, Chen Tong 265
Thermodynamic Properties of Al-Ce-S and Al-Cu-Ce Liquid SolutionsSun Yunyong, Wang Longmei, Du Ting 269
Thermodynamic Properties of Cu-Ce-S, Cu-Y-S Liquid SolutionsLi Guodong, Du Ting 273
Dispersion Strengthening of Zn-Al Based Cast Alloy by Spraying Rare Earth Oxide ParticlesNiu Yinyi, Liu Changming, Zou Gang 276
A Study on Phase Diagrams and Thermodynamic Properties of Systems Containing RareEarth Chlorides
Qiao Zhiyu 2 8 2
The Study of Electro-Deposition of Yttrium on Molybdenum and Nickel Electrode byUsing Cyclic Voltammetry
S. Duan, C. Zhou, Z.Y. Qiao, Q. Zhai 2 8 7
Calculations of Angular Overlap Parameters for Eu3+ Ions in KY3F10. YPO4
and YVO4 CrystalsWu Zhijan, Zhang Siyuan 2 9
A Study on the Structure and Properties of Ag-La AlloyMaYuxiang,ShiLu,ChenDejun,ChenZhujm 295
Thermochemical and Thermodynamic Studies of Lafl^Al,.,),, AlloysXu Xiuguang, Li Guangqiang, Yu Hualong, Wang Changzhen 300
The Thermodynamics of the RE(Nd,Pr,Sm)-O-F Systems ^
Hong Yanruo, D.A.R. Kay "
Judging a Binary Phase Diagram Containing RE and Calculation of Thermodynamic
Properties of RE Compound , j jSun Guiru, Li Wenchao, Wang Jian, Li Xinkuan
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Microdistribution and Function of Ce in Al—Si AlloyDang Ping, Han Qiyong, Du Weixi 317
A Study of Influence on Al—Mg-Si Alloy by Addition of LanthanumWang Shaoling, Zhou Xiaoping, Yu Yingmei 320
Influence of RE on Wear-Resistance of Alloy ZA 27Xiang Hongyao, Gong Benkui, Ma Hengyu, Zuo Huimin, Zhou Guanghui 325
High Strength Yttrium—Bearing Magnesium Alloy MB26Lu Liqi, Wei Guo 330
Determination of Phase Equilibria of Intermediate Compounds in Ternary SystemsLi Xingkang, Li Wenchao, Wang Jian, Chou Kuochin 335
The Effect of Cerium on Wettability of A12O3 / Al-4.5Cu AlloyLiu Yaohui, He Zhenming, Yu Sirong, Dong Guitian, Li Qingchun 340
Hole Burning, Erasing and Thermal Filling in Sr0 5Mgo^FCl, 5Br0 5 : Sm2+ MixedCrystal at Liquid Nitrogen Temperature
Mu Shi jn, Yu Jiaqi, Huang Shihua 344
Investigation of Preparation and Crystal Chemistry of Autocatalyst LaCu05Mn0 5O3
Le Van Huan 347
Analytical Chemistry
Determination of Rare Earth Impurities in Terbium by HPLC / ICP-MSYasushi Nakamura, Yoshio Kobayashi 351
Sorption-Luminescent Determination of Samarium and Europium in High PureLanthanide Oxides
Determination of Non-REE Impurities in 15 Individual Pure Rare Earth Oxides byChemical Spectrographic Method
Zhang Xianlu 363
Studies on Energy Levels of Rare Earth Elements by Photoacoustic SpectroscopySu Qingde, Zhao Guiwen 366
Studies on Rare Earth Elements by Photoacoustic SpectroscopyZhao Guiwen, Su Qingde, Wu Jiaqi, Shao Xueguang 371
Study on the Acquirement of Single Rare-Earth Element Using Radi oisotope X-rayFlourescence Spectrum Line Analysis Method
Li Zengqiang, Wu Wenqi 374
The Determination of Eu and Tb in Gd2O3 with Derivateve Spectrophotofluorimetryand Internal Standard Method
LiuWenhua 379
Section B RE Resources and Metallurgy
RE Separation, Extraction Chemistry, Mathematical Modeling, Hydrometallurgyand Equipment
The Simplex Method to Describe of the Technological ProcessesIlya N. Beloglazov 385
Separation Factors Between Adjacent Rare Earths Extracted from a Mixed Rare EarthChloride Solution Using 'Ionquest' 801 (2—Ethylhexylphosphonic Acid,Mono-2-Ethylhexyl Ester)
B.J. Balint 386
Some Problems on the Solvent Extraction of CeriumTatsuya Sekine 390
Extraction of Rare Earths by Phosphoric Acid EstersToshio Takahashi, Yukari Ishii, Akira Uchiyama, Shoji Takeda,Tetsuyuki Okumachi, Hiroaki Nishizawa, Taichi Sato 396
Chemically Based Model for the Extraction of PrtTII) and Nd(III) with Mixtures ofAcidic Organophosphorus Extractants
P.B. Santhi, M.L.P. Reddy, T.R. Ramamohan, A.D. Damodaran 400
Solvent Extraction of Rare-Earth Elements from Hydrochloric Acid Solutionsby Di-(2-Ethylhexyl)-Phosphoric Acid in the Presence of TrioctylPhosphine Oxide or Pyridine
Taichi Sato, Keiichi Sato . . 409
Extraction of Rare Earths from Apatite RockL.N. Komissarova, P.P. Melnikov, G.Ya. Pushkina, G.V. Zimina,T.N. Glubokova, T.A. Slyvko 413
Separation of Lanthonides from Indastrial SolutionsZebreva A.I., Andreeva N.N., Pasynkova T.A., Sayfullin N.A., Manuilova O.A 415
Mathematical Simulation for the Counter Current Extraction of Separating Nd and Smwith HDEHP
Huang Wenmei, Xue Qifeng, Shen Yunyu, Ya Wenhou 416
A Study on Extraction of Nd(III) with Solid Supported Liquid Membrane ContainingHEH(EHP)
Li Biaoguo, Huo Zichun, Liu Yanmin, Xu Guanxian, Zhu Guobin 420
The Application of Multicomparment— Settler Extractor to Rare Earth SeparationFuZizhong 425
Intraparticle Diffusion of Rare Earths in Porous Cation ExchangersLing Daren, Zheng Zuying, Chang Shengdong, Dan Guiping 427
Study on the Extraction of Rare Earth Salicylate by Primary Amine N1923Li Yongxiu, Ni Zhaoai 431
Influence of Primary Amine N1923 and Thiocyanate on the Kinetics of Erbium(III)Extraction from Hydrochloric Acid Solutions by HEH / EHP
Sun Ducheng, Li Deqian 434
A New Fractional Extraction Process "FB Method" and its Simulation and Applicationin Rare Earth Separation
Zheng Zhong, Liu Zhaogang, Wang Wenlian, Song Hongfang 438
The Model for the Extraction Equilibrium of NdCl3-SmCl3-HCI-HDEHP-Kerosine SystemXue Qifeng, Shen Yunyu, Ya Wenhou 442
Extraction of Scandium, Europium, Samarium from Waste of Coal IndustryV. Strelkov, N. Chizhov, Y. Kudryavsky, V.Gorshkov 445
Preparation of Metals, Alloys and RE Compounds
Synthesis and Properties of Hydroborates of Rere—Earth MetalsU. Mirsaidov, A. Kurbonbekov, M. Hikmatov, A. Badalov 447
Synthesis and Properties of Dicarbolides of Rare-Earth MetalsU. Mirsaidov, M. Hikmatov, A. Badalov 449
Synthesis of Organolanthanide Hydride Containing an Intramolecular CoordinationBond and X-ray Crystal Structure of Yttrium Hydride Complex
A Comparison Study on LaNis-H2 and LaNi3—H2 SystemsZhao Jianmin, Yang Kaidi, Liu Yuju, Huang Tao, Dai Chunhua 454
Separation of Zirconium in Preparation of High Purity Scandium OxideZhang Pingwei, You Shutong, Zhang Li, Feng Song, Hou Songshou 458
Preparation and Properties of Monodispersed Colloidal Particles of Neodium CompoundsDeng Hongmei, Xu Yan, Gu Yidong 462
The Extraction of Pr Metal by Electrolysis of Molten Chloride SaltFang Chenghou, Deng Rufu 465
A Study of the Technology for Producing Dysprosium and Gadolinium MetalsLi Zuoshun, Yang Guanglu, Lu Qihu 468
Study on Technology of Producing (RE) MgSiFe Alloy with Silico thermic MethodSheng Da, Lin Wei, Huang Huisong 472
A Study on the Zn-Al-RE Alloy Preparation by Using Molten Salt ElectrolysisWei Xujun, Xu Xiuzhi, Feng Falun, Chai Yongcheng 476
The Production of Neodymium Metal by Electrolysis of Neodymium OxideLiu Wenhuai, Han Zhen 480
Geochemistry and Ore Dressing
The Developing of the Rational Technology of the Synchisite Ore ConcentrationChaumdas Ashim, Myagmarjav Basan 484
Regularity Studies on the Separation of Bastnasite from Its Associated MineralsXu Gencan, Wang Jingwei 487
Research of Separating the Two Minerals (One Containing Rare Earths and AnotherContaining Scandium) from Rich Rare Earths of Blast Furnace Slag
Yang Zeqi, Zhang Qing, Zheng Xiapeng, Wang Guiming 492
Beneficiation Technology for BastnaesiteZeng Xinglan, Li Fangji 494
Physicochemical Conditions Affecting the Ytterbium Adsorption by Clays of theWeathering Crust
Zheng Zuoping, Lin Chuanxian 499
Gadolinite and Priorite-Important Industrial MineralsTao Keje , 501
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Environmental Protection
The Effects of Cerium Nitrate on Macrophage PhagocytosisCheng Haichang, Li Daiying, Zhu Rui, Gou Jing 503
Study on the Hygienic Standards of Rare Earth DustsLei Chunwen, Zhao Guangli, Jia Kejun, Zou Shiqu, Zou Tongtong,Ma Fusheng, Xiao Bangliang, Li Qiongying, Zhu Xiaofeng, Teng Aiju 506
A Follow-up Study (1980—1990) on the Relationship Between Thorium Lung Burden andHealth Effects on Miners at the Bayan Obo Mine, China
The Coercivity of the Sintered NdFeB MagnetsZhou Shouzeng, Tang Weizhong, Wang Run 601
Magnetic Properties and Crystallization Behavior of Amorphous (Fe^Ni,,)^ 5Nd4B18 5 AlloysZhang Jun—xian, Shen Bao—gen, Yang Lin—yuan, Zhan Wen—shan 609
New Rare-Earth Magnetic MateriaYonghong Xiong, Caoshui Xiong, Wensheng Miao, Guolan Guo,Tianfu Sun, Jianzhong Jiang, Meiqing Huang 614
High Field Susceptibility of Y2Fe14B!_xCx CompoundsZhao Zhi-gang, X.K. Sun, Y.C. Chuang 617
On Corrosion Failure of Nd—Fe—B MagnetsX.K. Sun, H.Q. Wang, C.L. Xiao, D.Y. Geng, L. Gao, Y.C. Chuang 621
The Study of Nd-Fe-B Permanent Magnets with High Energy ProductLi Wei, Li Po, Yu Xiaojun, Mei Liqun 625
Effect of Si and Al on the Coercivity of Nd-Dy-Fe-Co-B Sintered Magnets byReduction Diffusion
W. Pan, R.J. Shuai, J.P. Zu 632
Magnetic and Structural Investigation of Rapidly Microcrystallized AmorphousNd-Fe-B Alloys
Zhitao Diao, Shogo Kurita, Kenji Narita 636
Magnetic Properties of ErFe10V2> ErMn10V2 and ErFe5Mn5V2
R.J. Begum, P. Raj, S.K. Paranjpe, P. Suryanarayanan, L.C. Gupta 642
Hydrogen Storage Materials and Functional Materials
Investigation of NaLaS2 Type MaterialsL.N. Trushnikova, M.V. Saweljeva, V.V. Sokolov 644
Europium as an Activator in Oxygen-Dominated PhosphorsVictor G. Krongauz, Evgeny G. Morozov, Aleksander T. Merzlyakov 833
Interaction of Lanthanum with Catalytic Silica SupportsS. Bernal, J.J. Calvino, J.M. Rodriguez-Izquierdo, H. Vidal, J. Castiglioni, R. Kieffer 834
TPD Study of Hydrogen Interaction with a High Surface Area Ceria Supported Rhodium CatalystS. Bernal, J.J. Calvino, G.A. Cifredo, A. Jobacho, J.M. Rodriguez-Izquierdo 838
Catalytic Conversion of Ethylene to Propylene Over Novel Lanthanide Catalysts Depositedfrom Solutions of Eu or Yb in Liquid Ammonia
Hayao Imamura, Tomohiro Konishi 842
Luminescence Material Based on RE MolybdatesN.M. Kozhevnikova, V.P. Korsun, I.I. Mursakhanova, M.V. Mokhosoyev 845
Cerium Chloride—Promoted Unusual Coupling Reactions of Alkenyl Grignard Reagentsand Alkenyllithiums
On the Role of Organoaluminium Cocatalysts in the Process of Diene PolymerizationEffected by Lanthanide Catalytic Systems
Monakov Yu.B., Sabirov Z.M., Rafikov S.R 853
Studies of Platinum Rare Earth Reforming CatalystsLi Fengyi, Zhang Ning 856
Rare Earth Compounds Catalyzed Copolymerization of Styrene and Conjugated DienesI. Some Features of Copolymerization and Characteristics of the Copolymers
Jin Yingtai, Li Gang, Li Xue, Wang Peixin, Pei Fengkui, Wu Yue 860
Synthesis Structure and Catalytic Properties of La2_xSr,NiO4
Zheng Hongyuan, Du Shaobin, Ma Futai, Lu Guanglie 863
Preparations, Properties and Applications of RE-Containing Dealuminated Y ZeoliteZhang Guohong, Chen Xueda, Tong Guangming, Yin Zequn 867
The Deterioration Problem of Catalysts for Auto—Exhaust ControlLiu Changlin, Zheng Qingying 872
Research on Catalytic Properties of the Perovskitc—Type Compounds: Study onthe CO Reaction
Qin Yongning, Zheng Mingquan 876
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RE Applications in Steel, Cast and Nonferrous Metals
Mechanism of Nonmetallic Inclusions Cone Formation in Steel Ingots with REM AdditionsY.N. Malinochka 879
Rare Earth Oxide Additions on the Oxidation and Decarburization of Carbide- Dispersed Iron Base Sintered Alloys
A.U. Malik, Shahreer Ahmad, Sultan Ahmad 880
Production of Aluminium Bonded and Copper Coated Rotary Forged CompactsA. Ahmad, M.S. Shuja.I.R. Harris 881
The Mechanism of Influence of Rare-Earth Metals on Graphite Morphology in Cast IronA.P. Vorobyev, LJa. Kozlov 887
A Study on the Effectiveness of Rare Earth Suicide in Nodular Iron MakingP.K. Biswas, M.M. Sakkir, B.C. Pai, V. Venkateswaran, A.D. Damodaran 892
Question of Existence of La2 AlAhmad Yazdani 893
Nature and Distribution of Nonmetalic Inclusions in Steel with RE AdditionsY.N. Malinochka, T.M.Titova 900
Interaction Between Rare Earth Elements and Important Elements in Iron—Base SolutionsDu Ting 906
Effects of Rare Earth Elements Co-Permeation on Thermal Fatigue of 3Cr2W8V SteelXiang Shang, Wei Yongde, Meng Huimin 911
Interface Structure, Microstress and Adherence of Y-modified Ion Plated TitaniumNitride Film on Mild Steel
Liu Changqing, Yu Zhiming, Wu Weitao, Yu Li, Xu Jiayin, Jin Zhujng : . 916
The Influence of Ce on Pro-eutectoid Fcrrite Transformation in Mn-Cr-V SteelWu Chengjhra, Chang Hong 921
The Probe of Rare Earth (RE) - Vacancies Group Model and Its Reaction Mechanismin Steel Surface Treating
Liu Zheng, Lu Zhenja 925
The Study on Rare-Earth Effect in Sulpho-Carbonitriding ProcessNiu Songpu, Li Jinghui 930
The Behavior of Rare Earths Dissolved in Solid Solution of SteelLin Qin, Ye Wen, Yu Zongsen, Du Yuansheng 935
Effect of RE on Weathering Corrosion-Resistance of Steel 09CuPShao Guanglu, Feng Qiaoying, Liu Hongling 939
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Effect of Rare Earth Element on Substructure and Properties of Nitrocaburized Steel 20Liu Zhiru, Cheng Yion, Go Yi, Pan Su, Tang Zhishu 942
The Influence of Rare Earths on the Anti—Oxidation Property of the Heat Resistant Cast SteelsY.Z. Zhou, H. Long, S.Q. Jia.Z.K. Chen, Y.Z.Wu 947
Effects of RE Composite Modification on the Strength and Toughness of MartensiticSi-Mn Cast Steel
Chen Shouxu, Sun Xinjun, Chen Quande, He Yanyong, Zhang ZhongshengFu Zhongmin, Wu Dehai, Liang Ji 953
Effect of Rare Earths in Laser Surface Melting of Gray IronsLiu Jincheng, Zeng Daben, Guo Yuanqiang, Huang Huisong. , 958
Influence of Rare Earth Additions on Creep and Stress Relaxation of an Al— 5%CuAlloy in the Solid—Liquid Coexistence Zone
Li Qingchun, Chen Kuiying, Zeng Songyan 962
A Study on RE—Ca—Ba Inoculant and its ApplicationsZhou Shikang, Li Jinghong, Gan Zhiyong, Ying Yu, Yan Qiguang, Du Yongan 966
A Study of Industry Process Test of Rare Earth Element in Conductive CopperZhu Yuankai, Wang Jian, Li Wenchao, Wang Yuji, Gong Maoxiu, Yang Wenli 971
The Effect of Rare Earths on Resistance to Atmospheric Corrosion of Weathering SteelsZhang Huiwen, Sun Minghua, Mao Yuwen, Yu Zongsen 975
Influence of Rare Earth Oxides on the Oxidation Bahaviour of Nickel Aluminide CoatingA.U. Malik, Rais Ahmad, Mohd. Ajmal, Sultan Ahmad 979
Influence of Rare Earth Oxide Additions on the Oxidation and Decarburizationof Carbide Dispersed Iron Base Sintered Alloys
A.U. Malik, M. Ajnal, Shahreer Ahmad, Sultan Ahmad, Rais Ahmad 983
RE Applications in Agriculture and Medicine
Contents and Fractionation of Rare Earth Elements in SoilsRan Yong, Liu Zheng 988
A Study on the Influence of Rare—Earth Elements on Pollen Activity in FourKinds of Deciduous Fruit Trees
Zhu Tongshun, Gao Baozhen 993
Effect of Rare Earth Application on the Accumulation of Mineral Element ofTree (Seedlings)
Lian Youqin 997
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The Long Term Effects of Small Dosage of Chlorides of La, Sm and Yb on Cultured CellsNie Yuxiu, Chen Yulan, Yang Jiande, Li ZhenbaoNiu Chunji, Zhang Shugong, Ni Jiazan 1000
Effect of Rare Earth Elements on Mycelial Growth and Quality of Edible FungiFu Minghua, Ding Qianfa, Cheng Yousong, Gu Zhonglan, Yang Ruichang 1003
The Dissoving Characteristics and the Precipitate Composition of Rare Earth forAgriculture Use in Natural Water
Zheng Wei, Wang Shumao 1009
Recent Development of the Study on Agricultural Utilization of Rare Earth in ChinaGuo Bosheng, Xiong Bingkun, Lai Yuansheng, Zhang Yunlin, Hu Liyin 1012
Study on the Effect of Rare Earth on AlfalfaXu Xinyu, Zhang Yumei, Li Yuanfang, Lu Zhongyi,Xing Junquing, Liu Yongguo, Zhang Yujie, et al 1015
Effects of CeCl3 on Chlorophyll Formation and Chloroplast Structure of CucumberLeaves in Relation to Fe and Temperature