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Determination for the Binary System of Stearic Acid and Palmitic Acid by Differential Scanning Calorimetry

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Determination for the Binary System of Stearic Acid and Palm...

第十六届全国化学热力学和热分析学术会议

作者： Yu-Ting Li~1,Ya-Fei Guo~1,Shi-Qiang Wang~1 and Tian-Long Deng~(1,2) 1 Tianjin Key Laboratory of Marine Resources and Chemistry,College of Marine Science and Engineering, Tianjin University of Science and Technology Tianjin,300457,P.R.China 2 ACS Key Laboratory of salt Lake Resources and Chemistry,qinghai institute of salt lakes,Chinese Academy of Sciences,Xining,810008,P.R.China

＜正＞As a powerful thermal analysis method,differential scanning calorimetry（DSC） has been widely used for the determination of varieties thermodynamics and kinetics parameters,such as specific heat, reaction heat,phase diagram, crystallization rate and so *** to the advantages of instrument durability and affordable price at vary wide temperature ranges,many studies focused on to draw the multi-component phase diagram using DSC.

关键词： Differential scanning calorimetry(DSC) stearic acid palmitic acid phase diagram

Late Cenozoic high-resolution magnetostratigraphy in the Kunlun Pass Basin and its implications for the uplift of the northern Tibetan Plateau

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Science Bulletin 2005年第17期 98-108页

作者： SONG Chunhui1, GAO Dongling1,2, FANG Xiaomin3,1, CUI Zhijiu4, LI Jijun1, YANG Shengli3, JIN Hongbo1, Douglas Burbank5 & Joseph L. Kirschvink6 1. MOE Key Laboratory of Western China’s Environmental Systems (Lanzhou University), Ministry of Education & College of Earth and Environment Sciences, Lanzhou University, Lanzhou 730000, China 2. qinghai institute of salt lakes, Chinese Academy of Sciences, Qing-hai 810008, China 3. institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China 4. College of Environmental Sciences, Peking University, Beijing 100871, China 5. Department of Geological Sciences, University of California, Santa Barbara, USA 6. Paleomagnetics Laboratory, Division of Geological and Planetary Sciences, California institute of Technology, Pasadena, CA 91125, USA

The Kunlun Pass Basin, located in the middle of the eastern Kunlun Mountains, received relatively con-tinuous late Cenozoic sediments from the surrounding mountains, archiving great information to understand the deformation and uplift histories of the northern Tibetan Pla-teau. The Kunlun-Yellow River Movement, identified from the tectonomorphologic and sedimentary evolution of the Kunlun Pass Basin by Cui Zhijiu et al. （1997, 1998）, is roughly coincident with many important global and Plateau climatic and environmental events, becoming a crucial time interval to understand tectonic-climatic interactions. How-ever, the ages used to constrict the events remain great un-certainty. Here, we present the results of detailed magneto-stratigraphy of the late Cenozoic sediments in the Kunlun Pass Basin, which show the basin sediments were formed between about 3.6 Ma and 0.5 Ma and the Kunlun-Yellow River Movement occurred at 1.2 to0.78 Ma. The lithology, sedimentary facies and lithofacies associations divide the basin into five stages of tectonosedimentary evolution, indi-cating the northern Tibetan Plateau having experienced five episodes of tectonic uplifts at3.6, 2.69-2.58, 1.77, 1.2, 0.87 and0.78 Ma since the Pliocene.

关键词： magnetostratigraphy Kunlun Pass Basin Late Cenozoic Tibetan Plateau.

Structure and Properties of Aqueous NaB(OH)4Solution

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Structure and Properties of Aqueous NaB(OH)4Solution

第十六届全国化学热力学和热分析学术会议

作者： Y.Q.Zhou~(1,2),C.H.Fang~(1,*),Y.Fang~1,F.Y.Zhou~(1,2),H.W.Ge~1,Q.L.Chen~(1,2) 1 qinghai institute of salt lakes,Chinese Academy of Sciences,Xining 810008, 2 Graduate School of the Chinese Academy of Science,Beijing 100049,

Sodium tetrahydroborate is the most attractive chemical hydride for H generation and storage in automotive fuel cell applications,but recycling from the by-product(NaB(OH)) is difficult and *** electrochemical regeneration process could represent an economically feasible and environmentally friendly *** micro-Structure and physicochemical properties such as the volumetric and the transport properties at moderate temperatures affect the H generation and storage system as well as the electrochemical recyclability of the ***,electrical conductivity,pH,viscosity and Raman spectra of aqueous NaB(OH) solutions were precisely *** distribution in aqueous NaB(OH) solutions at 298.15K and 323.15K was calculated using measured pH value and Hteratural equilibrium constant.

关键词：

CHARACTERISTICS OF 3-DIMENSIONAL DISTRIBUTION OF Ⅰ_A AND Ⅱ_A ELEMENT SPECIES IN AIR-ACETYLENE FLAME

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Chinese Science Bulletin 1985年第6期30卷 851-页

作者：胡丰陈宪满肖波 qinghai institute of salt lakes Academia Sinica Xining qinghai institute of salt lakes

The characteristics of three-dimensional distribution of 31 kinds of the analytical species that include ground state atoms, cxcited state atoms, ground state ions, excited state ions and excited state molecules of Ⅰ... 详细信息

关键词： excited A AND flame alkaline figure gentle somewhat smallest Elmer 卫协

Solubility Prediction for Borate-containing salt-water Systems

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Solubility Prediction for Borate-containing Salt-water Syste...

第十六届全国化学热力学和热分析学术会议

作者： Tian-Long Deng~(1,2),Ya-Fei Guo~1,Yuan-Hui Liu~1,Shi-Qiang Wang~1,Ling-Zong Meng~3 1 Tianjin Key Laboratory of Marine Resources and Chemistry,College of Marine Sci.& Eng.,Tianjin University of Science and Technology,Tianjin 300457, 2 ACS Key Laboratory of salt Lake Resources and Chemistry,qinghai institute of salt lakes,Chinese Academy of Sciences,Xining 810008. 3 College of Chemistry and Chemical Engineering,Linyi University,Linyi 276005.

＜正＞There are distributed a series of salt lakes including Caerhan Lake,Dongtai Lake,Xitai Lake,and Yiliping Lake in the Qaidam Basin with abundance of lithium,potassium,magnesium,and borate resources. The compositi...

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Distributive Behaviours of the Seawater Chemical Resources in the Gulf of Thailand Using Isothermal Evaporation

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Distributive Behaviours of the Seawater Chemical Resources i...

第十六届全国化学热力学和热分析学术会议

作者： Ya-Fei Guo~1,Chen-Xiao Lin~1,Zhi-Gang Zhao~1,Xing-Liang Xu~1, Xiao-Gang Cheng~1,Shi-Qiang Wang~1 and Tian-Long Deng~(1,2) 1 Tianjin Key Laboratory of Marine Resources and Chemistry,College of Marine Sci &Eng,Tianjin University of Science and Technology,Tianjin,300457,P.R.China, 2 ACS Key Laboratory of salt Lake Resources and Chemistry,qinghai institute of salt lakes,Chinese Academy of Sciences,Xining,810008,P.R.China

＜正＞In order to economically exploit seawater chemical resources,it is essential to adequately adopt the local natural resources such as the energy of the wind and sun,i.e.,solar pond *** simulating isothermal evaporation experiment as similar as the climate conditions in the Gulf of Thailand was designed to demonstrate the enrichment behaviours of sodium,potassium, magnesium,calcium and the rare elements including lithium,bromine,rubidium,and caesium in seawater in the Gulf of Thailand. Through this experimental study,a series of liquid- and solid phase samples through evaporating after filtrating were obtained and analyzed to reveal the enriched behaviours of sodium,potassium, magnesium,*** experiment results showed that potassium ion was gradually enriched in the liquid phase in the first stage,and then it was crystallized out in the forms of carnallite and only a few of potassium chloride formed at the late evaporating stage. Meanwhile,the concentrations of lithium ion and bromine ion are measured corresponding to flame atomic absorption spectrophotometer and spectrophotometer to reveal the enrichment behaviors of lithium and bromine in brine during isothermal evaporating *** results of experiment showed that lithium was enriched constantly at the first stage of evaporating,and then significantly up to 18.85 mg/L of lithium in solution;bromine in the liquid phase was enriched as similar as lithium with the highest concentration up to 6.0g/L in the mother *** thesis provides an important reference for the development process of bromine and lithium extraction from the seawater in the Gulf of Thailand. Those results provided a valuable reference for the comprehensive utilization of seawater in the Gulf of Thailand.

关键词： Simulating Isothermal evaporating Crystallized path Seawater The Gulf of Thailand

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中国土地利用/土地覆盖变化研究综述

首都师范大学学报（自然科学版） 2003年第3期24卷 89-95页

作者：郑海金华珞欧立业首都师范大学资源环境与旅游学院北京100037 中科院青海盐湖所青海西宁810008

20世纪 90年代以来 ,随着资源、环境和人口问题的日益突出 ,土地利用 /土地覆盖变化研究己成为国际上全球变化研究的前沿和热点课题。在这个大背景下 ,中国也相应地开展了大量的土地利用 /土地覆盖变化研究 .文章回顾了中国在这个全球... 详细信息

20世纪 90年代以来 ,随着资源、环境和人口问题的日益突出 ,土地利用 /土地覆盖变化研究己成为国际上全球变化研究的前沿和热点课题。在这个大背景下 ,中国也相应地开展了大量的土地利用 /土地覆盖变化研究 .文章回顾了中国在这个全球性热点领域所进行的研究 ;着重综述了中国土地利用 /上地覆盖变化研究中时空变化、动力机制以及环境效应等三方面所取得的进展 ,并阐述了未来中国土地利用 /土地覆盖变化研究的发展趋势 .

关键词：中国土地利用变化土地覆盖变化时空变化动力机制环境效应全球变化发展趋势

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水合二氧化铈的制备、表征及对硼的吸附研究

中国稀土学报 2008年第3期26卷 302-306页

作者：闫春燕伊文涛马培华邓小川宋士涛祝增虎中国科学院青海盐湖所

水合金属氧化物作为一类无机离子交换剂,对特定的离子具有良好的吸附选择性。采用沉淀法合成了水合二氧化铈以用于分离含硼废水中的微量硼,并对其进行了水热处理研究,对合成的样品进行了XRD,FT-IR,TG-DTG和比表面-孔径分布等一系列表征... 详细信息

水合金属氧化物作为一类无机离子交换剂,对特定的离子具有良好的吸附选择性。采用沉淀法合成了水合二氧化铈以用于分离含硼废水中的微量硼,并对其进行了水热处理研究,对合成的样品进行了XRD,FT-IR,TG-DTG和比表面-孔径分布等一系列表征。结果表明,所合成的水合二氧化铈对硼具有良好的吸附效果,较常用的硼特效树脂对溶液中的微量硼具有更高的吸附容量,其吸附过程符合Langmuir吸附等温模型。

关键词：水合二氧化铈制备及表征吸附硼吸附等温线稀土

Study on phase diagrams and properties of solutions in ternary systems Li+,K+(Mg2+)/SO42--H2O at 25℃

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Chinese Journal of Chemistry 1995年第2期13卷 112-117页

作者： LI,Bing LI, Jun FANG, Chun-Hui WANG, Qing-Zhong SONG, Peng-Shengqinghai institute of salt lakes, Chinese Academy of Sciences, Xining, qinghai 810008, China Qingkai institute of salt lakes Chinese Academy of Sciences Xining Qinghai 810008 China

Solubilities of ternary systems Li+,K+/SO42--H2O (1) and Li+,Mg2+/SO42-H2O (2) were investigated by isothermal method at 25℃. Physico-chemical properties of solutions, such as density, refractive index, viscosity, conductivity and pH, were determined. Phase diagram of the system (1) consists of three solubility branches and three crystallization fields corresponding to K2SO4, Li2SO4.H2O and LiKSO4. LiKSO4 is an incongruent compound, and its transition point is estimated graphically to be 45.5-46.0℃. No solid solution of LiKSO4 with Li2SO4.H2O was found in the system. The system (2) is a simple eutonic type. Pitzer model of electrolyte solution was used to check the obtained solubilities. Data comparison gives good agreement. Two equations were used to correlate density, refractive index of the solution with its composition. Differences between measured and calculated values are less than 0.6% for density, 0.15% for the latter.

关键词： salt-water system solubility of Li salt phase diagram.