Characterization of LDHs prepared with different activity MgO and resisting Cl− attack of concrete in salt lake brine

The high lithium uptake of H2TiO3 from brine is due to its lithium ion-sieve property. Exchange sites are too narrow for Na, K, Mg and Ca to enter the interlayer space due to steric effects.

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Characterization of the morning transition from downslope to upslope winds and its connection with the nocturnal inversion breakup at the foot of a gentle slope

10.5194/egusphere-egu21-12408 ◽

2021 ◽

Author(s):

Sofia Farina ◽

Dino Zardi ◽

Silvana Di Sabatino ◽

Mattia Marchio ◽

Francesco Barbano

Keyword(s):

Salt Lake ◽

Vertical Direction ◽

Blow Down ◽

Physical Mechanisms ◽

Morning Transition ◽

Thermally Driven ◽

Slope Wind ◽

Slope Flow ◽

Nocturnal Inversion

Thermally driven winds observed in complex terrain are characterized by a daily cycle dominated by two main phases: a diurnal phase in which winds blow upslope (anabatic), and a nocturnal one in which they revert their direction and blow down slope (katabatic). This alternating pattern also implies two transition phases, following sunrise and sunset respectively.&#160;Here we study the up-slope component of the slope wind with a focus on the morning transition based on from the MATERHORN experiment, performed in Salt Lake Desert (Utah) between Fall 2012 and Spring 2013.&#160;The analysis develops along three main paths of investigation. The first one is the selection of the suitable conditions for the study of the diurnal component and the characterization of the morning transition. The second one focuses on the deep analysis of the erosion of the nocturnal inversion at the foot of the slope in order to investigate the physical mechanisms driving it. And the third one consists in the comparison between the experimental data and the results of an analytical model (Zardi and Serafin, 2015). The study of the morning transition in the selected case studies allowed its characterization in terms of the relation with the solar radiation cycle, in terms of its seasonality and in terms of its propagation along the slope and along the vertical direction. Most of the results of this investigation are related to the identification of the main mechanisms of erosion of the nocturnal inversion at the foot of the slope and to its role to the beginning of the transition itself. Finally, it is shown how the above model can fairly reproduce the cycle between anabatic and katabatic flow and their intensity.Zardi, D. and S. Serafin, 2015: An analytic solution for daily-periodic thermally-driven slope flow. Quart. J. Roy. Meteor. Soc., 141, 1968&#8211;1974.

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Basic Salt‐Lake Brine: An Efficient Catalyst for the Transformation of CO 2 into Quinazoline‐2,4(1 H ,3 H )‐diones

ChemSusChem ◽

10.1002/cssc.201802431 ◽

2018 ◽

Vol 11 (24) ◽

pp. 4219-4225 ◽

Cited By ~ 9

Author(s):

Jiayin Hu ◽

Shangqing Chen ◽

Yafei Guo ◽

Long Li ◽

Tianlong Deng

Keyword(s):

Salt Lake ◽

Basic Salt ◽

Efficient Catalyst ◽

Salt Lake Brine

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Solubility Prediction for the Reciprocal Quaternary System (Li+, Mg2+//Cl-, SO42-–H2O) at 273.15 K Using Pitzer Ion-Interaction Model

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.549.437 ◽

2012 ◽

Vol 549 ◽

pp. 437-440 ◽

Cited By ~ 3

Author(s):

Shi Qiang Wang ◽

Ya Fei Guo ◽

Tian Long Deng

Keyword(s):

Quaternary System ◽

Salt Lake ◽

Interaction Model ◽

Linear Regression Method ◽

Solubility Prediction ◽

Temperature Dependent ◽

Solubility Predictions ◽

Multiple Linear Regression Method ◽

Ion Interaction Model ◽

Salt Lake Brine

Solubilities of the reciprocal quaternary system (Li+, Mg2+//Cl-, SO42-–H2O) at 273.15K were calculated using Pitzer and its extended HW model. The values of the Pitzer single-salt parameters β(0), β(1), β(2)and Cφfor LiCl, MgCl2, Li2SO4, and MgSO4, the mixed ion-interaction parameters θLi,Mg, θCl,SO4, ψLi,Mg,Cl, ψLi,Mg,SO4, ψLi,Cl,SO4and ψMg,Cl,SO4, and the Debye–Hückel parameter Aφin the system at 273.15K were derived either temperature-dependent equation or through fitting solubility data of the ternary system by multiple linear regression method. Based on the Jänecke indexes, the phase diagram was plotted. This study affords the necessary parameters for solubility predictions of complicated systems and establishes a theoretical basis for the separation of these valuable minerals from salt lake brine.

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