scholarly journals The Influence of the MRSP on the Freezing and Evaporation Processes of the Magnesium Sulfate Subtype Salt Lake Brine

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Qinghai Li ◽  
Kongjin Zhu ◽  
Yuntao Liu ◽  
Xingqiang Liu ◽  
Feng Li ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Magnesium Sulfate ◽  
Mass Fraction ◽  
Crystal Morphology ◽  
Salt Lake ◽  
Metastable Phase ◽  
Potassium Ions ◽  
Evaporation Process ◽  
Metastable Phase Diagram ◽  
Salt Lake Brine

We have developed a new concept, which is the mass fraction ratio of sulfate and potassium ions (MRSP), for the magnesium sulfate subtype salt lake, which is calculated using the metastable phase diagram. We also studied the trend of the MRSP values with the temperature and the influence of the MRSP values on the evaporation process. The experimental results indicated that the MRSP value showed significantly negative trend with decrease of refrigerated temperature. Moreover, when the MRSP value of the objective brine is reduced to less than or equal to the Specific Value by freezing operation, the great changes of crystal morphology and stage of K+ and SO42- will take place, which makes the sequence of salts precipitation of the freezing-evaporation different from the direct-evaporation.

Metastable Phase Diagram of Nanocrystalline ZrO2−Sc2O3 Solid Solutions

2009 ◽  
Vol 113 (43) ◽  
pp. 18661-18666 ◽  
Author(s):  
Paula M. Abdala ◽  
Aldo F. Craievich ◽  
Marcia C. A. Fantini ◽  
Marcia L. A. Temperini ◽  
Diego G. Lamas
Keyword(s):  
Phase Diagram ◽  
Solid Solutions ◽  
Metastable Phase ◽  
Metastable Phase Diagram

scholarly journals Metastable phases and macroheterogeneous composites

2021 ◽  
Vol 29 (1) ◽  
pp. 65-68
Author(s):  
O. V. Sukhova
Keyword(s):  
Phase Diagram ◽  
Composite Materials ◽  
Abrasive Wear ◽  
Metastable Phase ◽  
Interfacial Reactions ◽  
Metastable Phases ◽  
Metastable Phase Diagram ◽  
Rapid Dissolution ◽  
Strong Adhesion ◽  
Stable And Metastable Phases

The way to control the interfacial reactions that processes during infiltration of macroheterogeneous composite materials is suggested. The idea is to combine the stable and metastable phases in the filler’s structure which dissolves at a different rate in the molten binder. To prove this approach, the structure and gas-abrasive wear of macroheterogeneous composite materials with Cu–20Ni–20Mn binder reinforced by Fe–(9.0–10.0)B–(0.01-0.2)C filler (in wt. %) cooled at 10–20 K/s or 103–104 K/s are studied. It is shown that the wear resistance of the investigated composite materials can be enhanced by accelerating interfacial reactions between the filler and the molten binder. Therefore, the composite materials produced from a rapidly cooled Fe–B–C filler show a higher resistance to gas-abrasive wear due to formation of Fe–Fe2(B,C) metastable eutectics in its structure. This eutectics crystallizes under metastable phase diagram due to the suppression of stable Fe2(B,C) phase formation and saturation of the rest of liquid by iron in the filler cooled at 103–104 K/s. As a result of rapid dissolution of the eutectics in the molten binder during infiltration, the strong adhesion at the interfaces of the composite materials is achieved which prevents the filler from spalling out under the impacts of abrasive.

scholarly journals Lithium extraction from Chinese salt-lake brines: opportunities, challenges, and future outlook

2017 ◽  
Vol 3 (4) ◽  
pp. 593-597 ◽  
Author(s):  
Jian Feng Song ◽  
Long D. Nghiem ◽  
Xue-Mei Li ◽  
Tao He
Keyword(s):  
Magnesium Sulfate ◽  
Lithium Chloride ◽  
High Purity ◽  
State Of The Art ◽  
Salt Lake ◽  
The State ◽  
Future Outlook ◽  
Salt Lake Brine

Chinese salt-lake brine is mainly of the magnesium sulfate subtype with a high Mg/Li ratio. To extract high purity lithium chloride from Chinese brine has been a decade-long challenge. This review summarizes the state-of-the-art of lithium extraction from Chinese salt-lake brine.

Stable and Metastable Phase Equilibria of the Lithium-Containing Salt-Water Systems

2014 ◽  
Vol 1015 ◽  
pp. 401-404
Author(s):  
Long Li ◽  
Dao Lin Gao ◽  
Jiang Ping Zeng ◽  
Ya Fei Guo ◽  
Tian Long Deng
Keyword(s):  
Phase Equilibria ◽  
Phase Diagrams ◽  
Salt Lake ◽  
Salt Water ◽  
Metastable Phase ◽  
Water Systems ◽  
Strategic Resources ◽  
The Future ◽  
Salt Lake Brine

Salt lake brine resource is one of the strategic resources in the western of China. Phase equilibria and phase diagrams are the theoretic foundation for the exploitation of salt lake brine resources. Hence, studies for the stable and metastable phase equilibria of lithium-containing salt-water systems are of the great importance for the development of salt lake brine resources. In this paper, the stable and metastable phase equilibria of lithium-containing salt-water systems were summarized, and the problems existed at present and the new trends in the future are also discussed.

Stable and Metastable Phase Diagram of the Two-Component System (CH3)3CCl−(CH3)CCl3:  An Example of Crossed Isodimorphism

2001 ◽  
Vol 105 (42) ◽  
pp. 10326-10334 ◽  
Author(s):  
Luis C. Pardo ◽  
María Barrio ◽  
Josep Ll. Tamarit ◽  
Philippe Negrier ◽  
David O. López ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Metastable Phase ◽  
Metastable Phase Diagram ◽  
Two Component System ◽  
Component System ◽  
Two Component

Towards a True Fe-Ni Phase Diagram

1982 ◽  
Vol 21 ◽  
Author(s):  
P L. Rossiter ◽  
R. A Jago
Keyword(s):  
Phase Diagram ◽  
Phase Equilibrium ◽  
Phase Field ◽  
Metastable Phase ◽  
Equilibrium Diagram ◽  
Metastable Phase Diagram ◽  
Iron Meteorites ◽  
Slow Cooling ◽  
Ni Alloys ◽  
True Equilibrium

ABSTRACTA modification to the existing Fe-Ni phase equilibrium diagram is proposed that takes account of the low-temperature ordering reaction to FeNi. It is shown that true equilibrium is never attained during slow cooling of Fe-Ni alloys, even for iron meteorites (which cool extremely slowly). In all real cases, a metastable phase diagram applies, in which the depressed γ/α+γ solvus produces a more extensive γ+ FeNi phase field than for the equilibrium case. This enlarged phase field is used to explain the decomposition of supersaturated Fe-Ni to γ+ FeNi, which is observed only in iron meteorites.

Metastable phase diagram of the PbSn system

1986 ◽  
Vol 78 (2) ◽  
pp. 157-162 ◽  
Author(s):  
K. Mori ◽  
K.N. Ishihara ◽  
P.H. Shinghu
Keyword(s):  
Phase Diagram ◽  
Metastable Phase ◽  
Metastable Phase Diagram
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