PMR investigation of the state of water of hydration in ethylenediaminetetraacetates of rare-earth elements

1976 ◽  
Vol 25 (4) ◽  
pp. 708-712
Author(s):  
K. I. Popov ◽  
L. I. Martynenko ◽  
V. F. Chuvaev ◽  
N. I. Pechurova ◽  
V. I. Spitsyn
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The State ◽  
State Of Water ◽  
Water Of Hydration

INVESTIGATION OF THE DISTRIBUTION AND THE STATE OF SMALL AMOUNT OF RARE EARTH ELEMENTS IN PURE IRON BY THE METHOD OF INTERNAL FRICTION

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-463-C5-468
Author(s):  
Li Wern-bin ◽  
Liu Zheng-qun ◽  
Yang Quo-ping ◽  
Li Cheng-hsiu ◽  
Zhang Bin
Keyword(s):  
Rare Earth ◽  
Internal Friction ◽  
Rare Earth Elements ◽  
Pure Iron ◽  
The State

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth

ESTIMATION OF THE ABUNDANCE AND DISTRIBUTION OF RARE EARTH ELEMENTS IN SOIL AROUND KADUNA REFINING AND PETROCHEMICAL COMPANY USING NUCLEAR TECHNIQUE

2020 ◽  
Vol 4 (2) ◽  
pp. 599-604
Author(s):  
Michael A. Onoja ◽  
P. H. Bukar ◽  
C. U. Omeje ◽  
A. M. Adamu
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Nuclear Technique ◽  
Flood Plains ◽  
Economic Exploitation ◽  
Rare Elements ◽  
Petrochemical Company ◽  
The Moment ◽  
Abundance And Distribution ◽  
Natural Pattern

Instrumental neutron activation analysis (INAA) technique was used to investigate the abundance and distribution of rare earth elements (REE) in soil around Kaduna Refinery. The aim of the study is to assess the rare elements potential of Nigeria for economic exploitation. Five REEs (La, Dy, Eu, Yb, and Lu) were detected in varying concentrations ranging from a minimum of 0.6 µg/g (Lu) to a maximum of 249.0 µg/g (La). The elements existed with trends consistent with the natural pattern of REEs in soil, showing significant Eu and Dy anomalies which characterize upper plains and flood plains. The levels of REEs in soil in the study area were generally slightly above background levels, with minimal (La, Dy, and Eu), moderate (Yb), and significant (Lu) enrichments and trending: Lu ˃Yb ˃ Eu ˃ Dy ˃ La. The abundance of the REEs investigated cannot establish a potential of Nigeria for economic exploitation of the mineral, hence, rare earth project in the study area is not viable at the moment.

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