Selective Precipitation of High-Quality Rare Earth Oxalates or Carbonates from a Purified Sulfuric Liquor Containing Soluble Impurities

2019 ◽  
Vol 36 (5) ◽  
pp. 967-977 ◽  
Author(s):  
Ruberlan Gomes Silva ◽  
Carlos Antonio Morais ◽  
Leandro Viana Teixeira ◽  
Éder Domingos Oliveira
Keyword(s):  
Rare Earth ◽  
High Quality ◽  
Selective Precipitation ◽  
Rare Earth Oxalates

scholarly journals Effects of Rare Earth Elements on Properties of High Quality Ingots

1976 ◽  
Vol 62 (7) ◽  
pp. 827-835 ◽  
Author(s):  
Moriyuki ISHIGURO ◽  
Masaharu ITO ◽  
Tatsumi OSUKA
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
High Quality

Rare earth recovery from end-of-life motors employing green chemistry design principles

2016 ◽  
Vol 18 (3) ◽  
pp. 753-759 ◽  
Author(s):  
H. M. Dhammika Bandara ◽  
Kathleen D. Field ◽  
Marion H. Emmert
Keyword(s):  
Rare Earth ◽  
Green Chemistry ◽  
Rare Earth Elements ◽  
End Of Life ◽  
Recovery Rate ◽  
Design Principles ◽  
Selective Dissolution ◽  
Selective Precipitation ◽  
Efficient Process ◽  
Efficient Separation

This manuscript describes the development of an efficient process for the recovery of rare earth elements from materials mixtures such as in motors with a recovery rate of >80%. Selective dissolution enables efficient separation of steel and copper and selective precipitation of RE salts is the key for obtaining pure RE products.

scholarly journals Rationally designed rare earth separation by selective oxalate solubilization

2020 ◽  
Vol 56 (77) ◽  
pp. 11386-11389
Author(s):  
Denis Prodius ◽  
Matthew Klocke ◽  
Volodymyr Smetana ◽  
Tarek Alammar ◽  
Marilu Perez Garcia ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metals ◽  
Chemical Separation ◽  
Rare Earth Oxalates

A simple, eco-friendly and efficient chemical separation of rare earth oxalates (CSEREOX) in water within two rare earth metals subgroups has been elaborated.

FT-IR study and normal vibration analysis of rare earth oxalates

1988 ◽  
Vol 94 (1-6) ◽  
pp. 235-238 ◽  
Author(s):  
Xiu -Zhen Wang ◽  
Jin -Guang Wu ◽  
Tian -Zhu Jin ◽  
Nai Shi ◽  
Guang -Xian Xu
Keyword(s):  
Rare Earth ◽  
Vibration Analysis ◽  
Normal Vibration ◽  
Ft Ir ◽  
Ir Study ◽  
Rare Earth Oxalates ◽  
Normal Vibration Analysis

EFFECTS OF COMPOSITION AND TEMPERATURE ON REBCO SINGLE CRYSTALS GROWN BY FLUX METHOD

2000 ◽  
Vol 14 (25n27) ◽  
pp. 2682-2687 ◽  
Author(s):  
A. UBALDINI ◽  
G. A. COSTA ◽  
M. M. CARNASCIALI ◽  
M. FERRETTI
Keyword(s):  
Rare Earth ◽  
Cooling Rate ◽  
Single Crystals ◽  
Initial Temperature ◽  
Equilibrium Composition ◽  
Initial Ratio ◽  
Flux Method ◽  
High Quality ◽  
Temperature Changes ◽  
Large Side

The flux method is the most popular technique to obtain high quality and large side single crystals of YBa 2 Cu 3 O x (YBCO) and REBa 2 Cu 3 O x (REBCO). It is known that, for the YBCO, the interval of temperature for growing single crystals is between about 1010°C and 930°C, whereas, for the REBCO phases, the maximal temperature changes as function of rare earth. In this work, we studied the effect of different thermal programs on the side the YBCO crystals. The initial temperature and the cooling rate were changed. We studied the influence of a different initial ratio between Nd and Ba and between Sm and Ba on the equilibrium composition in NdBCO and SmBCO crystals.

Quasimonochromatic Radiation for Dental Radiography

1976 ◽  
Vol 55 (1) ◽  
pp. 148-153 ◽  
Author(s):  
A. Huen ◽  
E.J. Sternglass ◽  
D.M. Mazzocco ◽  
W.G. Fischer
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Computer Program ◽  
Dental Radiography ◽  
Monochromatic Radiation ◽  
High Quality ◽  
Skin Exposure ◽  
Dental Radiograph

To obtain a high quality dental radiograph, it is advantageous to use 40 kiloelectron volt (kev) monochromatic radiation. The feasibility of obtaining this type of radiation by filtering rays of rare earth elements was studied by a computer program before experimentation. By use of 40 kev monochromatic radiation, skin exposure was reduced by a factor of two to three.

Sign in / Sign up

Export Citation Format

Share Document