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国家自然科学基金(21276194)

作品数:19 被引量:11H指数:2
相关作者:邓天龙郭亚飞张楠李珑刘明明更多>>
相关机构:天津科技大学西北大学更多>>
发文基金:国家自然科学基金天津市自然科学基金中国博士后科学基金更多>>
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19 条 记 录,以下是 1-10
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Application of Dibenzo-21-Crown-7 for Cesium Extraction from Geothermal Water
2014年
Cesium as a kind of alkali metals has widely been used in catalysis,medicine,biology,magnetic fluid power and other high-tech fields(Liao and Yang,2012;Cao et al.,2011;Wang et al.,2011).Although there was abundant of
LIU MingmingGAO DaolinZHANG NanYU XiaopingDENG Tianlong
关键词:INTERMEDIATESYNTHESISEXTRACTION
Predictive phase equilibria for the aqueous ternary system(Li_2SO_4 + K_2SO_4 + H_2O) from 273.15 to 373.15 K
2014年
1 Introduction Many variable temperature chemical models were developed to predict mineral solubility in the natural waters(Na+,K+,Ca2+,Mg2+//Cl-,SO42-–H2O)in the temperature range below 298.15 K(to near 213.15 K)and(Na+,K+,
LIU YuanhuiGUO YafeiYU XiaopingWANG ShiqiangDENG Tianlong
Experiment and Pitzer Model Prediction for the Solid + Liquid Equilibria of the Ternary System LiCl–CaCl_2–H_2O
2014年
1 Introduction Lithium resources are widely distributed in the oilfield brine from the Nanyishan district in the Qaidam Basin(Fan et al.,2007).The investigation of the thermodynamics and phase diagram of the brine system is valuable in providing the theoretic foundation and scientific guidance in the comprehensive exploitation of the mixture salts effectively.Comprehensive
MENG LingzongLI DanDENG TianlongGUO Yafei
Thermal Characteristics of Room Temperature Inorganic Phase Change System Containing Calcium Chloride
2015年
A novel inorganic calcium-based phase change material(PCM-Ca) consisted of 47.1%(mass fraction) water, 47.7% calcium chloride, 2% potassium nitrate, 2% potassium bromide and 1.2% strontium chloride with a solid-liquid phase change temperature of 21.4 ℃ was investigated systematically. Among the components of PCM-Ca, calcium chloride and water act as the latent heat storage materials, and potassium nitrate, potassium bromide and strontium chloride work as the modifier, thickener and nucleating agent, respectively. Thermochemical properties including melting point, latent heat, density and thermal conductivity of the PCM-Ca were measured experimentally. The experimental results indicate that the melting latent heat, thermal conductivity at the melting point and density at room temperature for the PCM-Ca are 203.3 kJ/kg, 1.3637 W·m-1·K-l and 1.55×103 kg/m3, respectively. Moreover, a thirty-run-cycling test showed that the PCM-Ca has a good thermal characteristic with no phase segregation or supercooling, and the maximum deviations of latent heat and phase change temperature are only 0.2% and 1.6%, respectively.
GAO Daolin GUO Yafei YU Xiaoping WANG Shiqiang DENG Tianlong
四元体系LiCl-LiBO2-Li2SO4-H2O在298.15K时的相平衡被引量:3
2016年
采用等温溶解平衡法开展了四元体系Li Cl-Li BO_2-Li2SO_4-H_2O在298.15 K时相平衡实验研究,测定体系溶解度和平衡溶液的折光率、密度、p H和电导率。根据实验数据,分别绘制该四元体系的干基图、水图以及相对应的物化性质–组成图。研究结果表明:在该四元体系298.15 K相图中,有2个无变度共饱点分别为相称共饱点(Li2SO_4·H_2O+Li Cl·H_2O+Li BO_2·2H_2O)和不相称共饱点(Li2SO_4·H_2O+Li BO_2·2H_2O+Li BO_2·8H_2O)、5条溶解度曲线和4个单盐结晶相区(Li2SO_4·H_2O、Li Cl·H_2O、Li BO_2·8H_2O和Li BO_2·2H_2O),无复盐和固溶体产生,属于简单四元体系水合物Ⅱ型相图。实验研究中,发现2种偏硼酸锂水合矿物存在(Li BO_2·8H_2O和Li BO_2·2H_2O),Li Cl对Li2SO_4的盐析效应显著;四元体系平衡溶液物化性质随着溶液中氯化锂浓度的变化呈现规律性的变化。
曹丽娜李珑张楠郭亚飞邓天龙
关键词:水盐体系相平衡
Lithium Ion Extraction from the High Ration Mg/Li Salt Lake Brine with Ionic Liquid in Triisobutyl Phosphate and Kerosene被引量:1
2014年
1 Introduction As the lightest metal with the unique properties of energy production and storage,lithium is regarded as the new century energy metal.Lithium and its compounds were widely used in various industrial fields,especially in
GAO DaolinLIU MingmingGUO YafeiYU XiaopingWANG ShiqiangDENG Tianlong
Transformation Process and Mechanism of Lithium Borates
2014年
Amounts of lithium-containing salt lake brine resources are widely distributed in the four provinces named Qinghai,Tibet,Inner Mongolia and Xinjiang province,especially the salt lakes in Qinghai-Tibet Plateau are abundant of
CAO LinaL IU MingmingGAO DaolinGUO YafeiDENG Tianlong
Phase Equilibrium and Phase Diagram of the Ternary System(MgCl<sub>2</sub> + MgB<sub>2</sub>O<sub>4</sub> + H<sub>2</sub>O) at 288 and 298 K被引量:2
2014年
1 Introduction The brines with high concentrations of magnesium and boron resources are widely distributed in the Qaidam Basin of the Qinghai-Tibet plateau,China(Zheng&Tang,1988).Although some works on the ternary system
GUO YafeiSUN ShiruGAO DiaolinYU XiaopingWANG ShiqiangDENG Tianlong
关键词:MGCL2
Phase Equilibria in the Aqueous Ternary System(Li_2SO_4–K_2SO_4–H_2O) at 323.15 K
There are more than 700 salt lakes in Qinghai–Tibet Plateau in China, each with an area larger than 1 km2. In ...
Baihui BuNan ZhangYafei GuoShiqiang WangTianlong Deng
关键词:SOLUBILITYLITHIUMPOTASSIUMMETASTABLEEQUILIBRIA
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Metastable Phase Equilibria of the Aqueous Ternary System(Li_2SO_4-K_2SO_4-H_2O) at 308.15K
Due to the serious metastable phenomena existed for the evaporating of brines, it is important to study the me...
Long LiBaihui BuNan ZhangYafei GuoTianlong Deng
关键词:METASTABLEEQUILIBRIASOLUBILITYSULFATEPOTASSIUMSULFATE
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