Research progress in High-strength Rare earth Ammonia Wastewater treatment

2015 ◽  
pp. 625-628
Author(s):  
W Hou ◽  
L Wu ◽  
W Zhang ◽  
Y Jin ◽  
Y Ye
Keyword(s):  
Wastewater Treatment ◽  
Rare Earth ◽  
High Strength ◽  
Research Progress

ELEKTRON EQ2

Alloy Digest ◽  
2015 ◽  
Vol 64 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Rare Earth ◽  
High Temperature ◽  
Magnesium Alloy ◽  
North America ◽  
Earth Element ◽  
High Strength ◽  
Heat Treating ◽  
Bend Strength ◽  
Temperature Performance

Abstract Elektron EQ21 is a casting high strength magnesium alloy developed as a heat treatable alloy with rare earth element additions. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive, shear, and bend strength as well as creep. It also includes information on high temperature performance and corrosion resistance as well as casting, forming, heat treating, machining, joining, and surface treatment. Filing Code: Mg-80. Producer or source: Magnesium Elektron Wrought Products, North America.

Research Progress of Natural Polymers in Wastewater Treatment

2019 ◽  
Vol 16 (4) ◽  
pp. 335-344 ◽  
Author(s):  
Xiang Li ◽  
Baojun Yang ◽  
Li Feng ◽  
Huaili Zheng ◽  
Guoming Zeng ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Environmental Protection ◽  
Environmental Awareness ◽  
Environmental Engineering ◽  
Research Progress ◽  
Future Trends ◽  
Natural Polymers

With the development of industry, urbanization, increasingly stringent environmental protection requirements, and strengthening of people’s environmental awareness, green treatment of pollutants has become a research hotspot in the field of environmental protection. Accordingly, the study on natural non-toxic polymers has received increasing attention from researchers. This paper aims to provide the present research progress of natural polymers in environmental engineering, including the striking characteristics and modification methods of the most well-known natural polymers, as well as their applications in environmental protection field. Concluding remarks and future trends are also pointed out.

scholarly journals Editorial for Special Issue “Leaching of Rare Earth Elements from Various Sources”

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 164
Author(s):  
Kenneth N. Han
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
High Strength ◽  
Green Energy ◽  
High Tech ◽  
Special Issue ◽  
Important Group ◽  
Military Applications

Rare earth elements (REEs) have become an important group of metals used in many high-tech industries, including high-strength magnets, plasma TVs, various military applications, and clean and efficient green energy industries [...]

scholarly journals Effect of Rare Earth Ce on Deep Stamping Properties of High-Strength Interstitial-Free Steel Containing Phosphorus

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1473
Author(s):  
Hao Wang ◽  
Yanping Bao ◽  
Chengyi Duan ◽  
Lu Lu ◽  
Yan Liu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Grain Size ◽  
Rare Earth ◽  
High Strength ◽  
Rolling Process ◽  
P Element ◽  
Second Phase ◽  
Strengthening Effect ◽  
Interstitial Free ◽  
If Steel

The influence of rare earth Ce on the deep stamping property of high-strength interstitial-free (IF) steel containing phosphorus was analyzed. After adding 120 kg ferrocerium alloy (Ce content is 10%) in the steel, the inclusion statistics and the two-dimensional morphology of the samples in the direction of 1/4 thickness of slab and each rolling process were observed and compared by scanning electron microscope (SEM). After the samples in each rolling process were treated by acid leaching, the three-dimensional morphology and components of the second phase precipitates were observed by SEM and energy dispersive spectrometer (EDS). The microstructure of the sample was observed by optical microscope, and the grain size was compared. Meanwhile, the content and strength of the favorable texture were analyzed by X-ray diffraction (XRD). Finally, the mechanical properties of the product were analyzed. The results showed that: (1) The combination of rare earth Ce with activity O and S in steel had lower Gibbs free energy, and it was easy to generate CeAlO3, Ce2O2S, and Ce2O3. The inclusions size was obviously reduced, but the number of inclusions was increased after adding rare earth. The morphology of inclusions changed from chain and strip to spherical. The size of rare earth inclusions was mostly about 2–5 μm, distributed and dispersed, and their elastic modulus was close to that of steel matrix, which was conducive to improving the structure continuity of steel. (2) The rare earth compound had a high melting point. As a heterogeneous nucleation point, the nucleation rate was increased and the solidification structure was refined. The grade of grain size of products was increased by 1.5 grades, which is helpful to improve the strength and plasticity of metal. (3) Rare earth Ce can inhibit the segregation of P element at the grain boundary and the precipitation of Fe(Nb+Ti)P phase. It can effectively increase the solid solution amount of P element in steel, improve the solid solution strengthening effect of P element in high-strength IF steel, and obtain a large proportion of {111} favorable texture, which is conducive to improving the stamping formability index r90 value.

Recent developments in rare-earth free wrought magnesium alloys having high strength: A review

2016 ◽  
Vol 663 ◽  
pp. 321-331 ◽  
Author(s):  
Hucheng Pan ◽  
Yuping Ren ◽  
He Fu ◽  
Hong Zhao ◽  
Liqing Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Magnesium Alloys ◽  
High Strength ◽  
Recent Developments

Decentralized high-strength wastewater treatment using a compact aerobic baffled bioreactor

2022 ◽  
Vol 305 ◽  
pp. 114281
Author(s):  
Benjamin D. Thomas ◽  
Sibel Uludag-Demirer ◽  
Henry Frost ◽  
Yan Liu ◽  
James S. Dusenbury ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
High Strength
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