The dissolution enthalpies of the [Sm(NO 3) 3[KG-*3]·6H 2O(s)+4Ala(s)] and Sm(Ala) 4(NO 3) 3 and Sm(Ala) 4(NO 3) 3·H 2O(s) have been measured at 298.15 K using a homemade isoperibolic calorimeter with hydroc...The dissolution enthalpies of the [Sm(NO 3) 3[KG-*3]·6H 2O(s)+4Ala(s)] and Sm(Ala) 4(NO 3) 3 and Sm(Ala) 4(NO 3) 3·H 2O(s) have been measured at 298.15 K using a homemade isoperibolic calorimeter with hydrochloric acid solution(2 mol/L) as solvent. The standard molar enthalpy of the coodination reaction of alanine with samarium nitrate has been determined via a designed thermochemical cycle, and ΔHθ r,m= 21 393 kJ/mol was obtained. The standard molar enthalpy of formation of the complex Sm(Ala) 4-(NO 3) 3·H 2O has been calculated to be ΔHθ f,m[Sm(Ala) 4(NO 3) 3[KG-*2]·H 2O,s,298.15 K]= = -3 865.2 kJ/mol.展开更多
用热重-红外(TG-IR)研究了TATB基高聚物粘结炸药(PBX)与硬质聚氨酯泡沫塑料(RPUF)之间在线性升温过程中的相互作用。结果显示,接触体系释出的气相产物组分基本上是两种独立组分释出的总和,没有新的组分产生。用微热量仪得到了140℃下受...用热重-红外(TG-IR)研究了TATB基高聚物粘结炸药(PBX)与硬质聚氨酯泡沫塑料(RPUF)之间在线性升温过程中的相互作用。结果显示,接触体系释出的气相产物组分基本上是两种独立组分释出的总和,没有新的组分产生。用微热量仪得到了140℃下受热10 d内T AT B基PBX与硬质聚氨酯泡沫塑料及二者接触体系的热量变化曲线。用红外和X-射线光电子能谱表征了量热测试前后样品的表面结构和元素含量,显示接触后样品的表面结构和元素环境没有变化,表明TATB基PBX与聚氨酯泡沫塑料的相容性良好。展开更多
Seven typical components in municipal solid wastes (MSWs)--paper,food,textile,wood,straw,plastic and rubber were chosen as the thermogravimetric analysis samples in this paper to study the pyrolysis characteristics. B...Seven typical components in municipal solid wastes (MSWs)--paper,food,textile,wood,straw,plastic and rubber were chosen as the thermogravimetric analysis samples in this paper to study the pyrolysis characteristics. By the thermogravimetry and differential scanning calorimetry (TG-DSC) analysis,pyrolysis characteristics of MSWs’ components and pyrolysis endothermal enthalpy were obtained.The kinetic parameters of pyrolysis were determined with the Doyle method and a multi-stage first order pyrolysis model was proposed.The simulated results by this model showed good agreement with the TG experimental data.The pyrolysis characteristics provide significant parameters to a new concept of circulating fluidized bed incinerator,which can simultaneously restrain the high-temperature HCl corrosion and emission of dioxins.展开更多
文摘The dissolution enthalpies of the [Sm(NO 3) 3[KG-*3]·6H 2O(s)+4Ala(s)] and Sm(Ala) 4(NO 3) 3 and Sm(Ala) 4(NO 3) 3·H 2O(s) have been measured at 298.15 K using a homemade isoperibolic calorimeter with hydrochloric acid solution(2 mol/L) as solvent. The standard molar enthalpy of the coodination reaction of alanine with samarium nitrate has been determined via a designed thermochemical cycle, and ΔHθ r,m= 21 393 kJ/mol was obtained. The standard molar enthalpy of formation of the complex Sm(Ala) 4-(NO 3) 3·H 2O has been calculated to be ΔHθ f,m[Sm(Ala) 4(NO 3) 3[KG-*2]·H 2O,s,298.15 K]= = -3 865.2 kJ/mol.
文摘用热重-红外(TG-IR)研究了TATB基高聚物粘结炸药(PBX)与硬质聚氨酯泡沫塑料(RPUF)之间在线性升温过程中的相互作用。结果显示,接触体系释出的气相产物组分基本上是两种独立组分释出的总和,没有新的组分产生。用微热量仪得到了140℃下受热10 d内T AT B基PBX与硬质聚氨酯泡沫塑料及二者接触体系的热量变化曲线。用红外和X-射线光电子能谱表征了量热测试前后样品的表面结构和元素含量,显示接触后样品的表面结构和元素环境没有变化,表明TATB基PBX与聚氨酯泡沫塑料的相容性良好。
文摘Seven typical components in municipal solid wastes (MSWs)--paper,food,textile,wood,straw,plastic and rubber were chosen as the thermogravimetric analysis samples in this paper to study the pyrolysis characteristics. By the thermogravimetry and differential scanning calorimetry (TG-DSC) analysis,pyrolysis characteristics of MSWs’ components and pyrolysis endothermal enthalpy were obtained.The kinetic parameters of pyrolysis were determined with the Doyle method and a multi-stage first order pyrolysis model was proposed.The simulated results by this model showed good agreement with the TG experimental data.The pyrolysis characteristics provide significant parameters to a new concept of circulating fluidized bed incinerator,which can simultaneously restrain the high-temperature HCl corrosion and emission of dioxins.
