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等温热重法
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  isothermal thermogravimetry
     In this paper the isothermal thermogravimetry was employed for in- vestigating the rate process of reduction of lead oxide with (H_2+CO) mixtures.
     本文采用等温热重法研究了混合气体(H_2+CO)还原氧化铅的速率过程。
短句来源
     STUDY OF CHAR-CO_2 GASIFICATIO(Ⅰ) BY ISOTHERMAL THERMOGRAVIMETRY
     煤焦二氧化碳气化动力学研究 (Ⅰ)等温热重法
短句来源
     And the thermal decomposition kinetics of inclusion compound of β_CD with EPA had been studied by using non_isothermal thermogravimetry. The results showed that the reaction order thermal decomposition β_CD and EPA was higher than first order. The average activation energy of the thermal decomposition calculated by using Ozawa(Ⅰ) and Reich method were 183.85 kJ/mol and 183.75 kJ/mol respectively.
     用非等温热重法研究了β_环糊精与EPA包结物的热分解反应动力学,实验结果显示,β_环糊精与EPA包结物热分解过程反应级数大于1,用Ozawa(I)法和Reich法求得的热分解反应的活化能分别为183 85kJ/mol和183 75kJ/mol
短句来源
  isothermal tg method
     STUDY ON KINETICS OF BIOMASS-AIR GASIFICATION BY ISOTHERMAL TG METHOD
     等温热重法生物质空气气化反应动力学研究
短句来源
  “等温热重法”译为未确定词的双语例句
     The dehydration of Zn(CH 3COO) 2·2H 2O has been studied isothermally and nonisothermally using TG method.
     用等温热重法和非等温热重法研究了Zn(CH3COO) 2·2H2 O的脱水反应 .
短句来源
     The thermal decomposition kinetic mechanism of [Co(NH_3)_5Cl]Cl_2 has been studied non-isothermally by TG method.
     用非等温热重法研究了二氯化氯·五氨合钴(Ⅲ)配合物[Co(NH3)5Cl]Cl2 的热分解反应机理.
短句来源
     The thermal dehydration of BaC_2O_4·0.5H_2O in a dry nitrogen flow was studied by means of thermogravimetry both at the constant temperature and linear increasing temperature.
     用等温热重法和线性升温热重法在氮气气氛中研究BaC_2O_4·0.5H_2O的脱水过程.
短句来源
     The dehydration reaction of Cu(CH 3 COO) 2 ·H 2 O has been studied isothermally and non isothermally by TG method.
     用等温热重法和非等温热重法研究了Cu(CH3COO) 2 ·H2 O的脱水反应。
短句来源
     When phosphogypsum and its mixture were treated with reductive gas medium containing 3% CO at 30-1200℃ by using continuous thermogravimetric analysis, the effect of various additives (SiO 2,Fe 2O 3,CaCl 2,CaO,NaCl,Na 2SiF 6,Na 2CO 3,etc.) on the process of thermochemical decomposition was studied.
     采用非等温热重法在30~1200℃内研究了外加剂(SiO2,Fe2O3,CaCl2,CaO,NaCl,Na2SiF6,Na2CO3)在含3%的还原性气体介质中对磷石膏及其配合料的热分解过程的影响。
短句来源
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  相似匹配句对
     Non-isothermal thermogravimetric investigation on kinetics of dehydroxylation of kaolinite
     高岭石脱水反应的非等温热重法研究
短句来源
     (2) isothermal;
     一般等温;
短句来源
     Study on the Non-isothermal Decomposition Kinetics of Mancozeb by Thermogravimetry
     用热重法研究代森锰锌的非等温热分解动力学
短句来源
     ISOTHERMAL CRYSTALLIZATION IN POLYMERS
     高聚物的等温结晶
短句来源
     stability by thermogravimetry;
     热重法测热稳定性 ;
短句来源
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  isothermal thermogravimetry
The main features of the synthesis of (Pb1-xSrx)2Nb2O7 and (Pb1-xBax)2Nb2O7 pyrochlore solid solutions were determined using isothermal thermogravimetry in tandem with formal-kinetic analysis.
      
The influence of silica/titania and silica/zirconia nanoparticles on thermooxidative degradation of PMMA was studied by non-isothermal thermogravimetry.
      
Non-isothermal thermogravimetry records were analyzed as being composed from 3 independent processes from which the degradation products are formed.
      
A technique of isothermal thermogravimetry is reported for determining the equilibrium atmospheres needed to maintain a constant composition in a ferrite during the variations in temperature which occur during a sintering program.
      
The kinetic studies based on the weight losses of the resins were carried out by isothermal thermogravimetry (TG) at temperatures ranging from 260° to 320°C.
      
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  isothermal tg method
Activation energies of the thermal decompositions of C3AH6 AND C3AD6 by the isothermal TG method
      
Dehydroxylation of C3AH6 and C3AD6 minerals was studied by means of the isothermal TG method in ambient air and in a constant stream of nitrogen.
      
In this work the kinetic of the thermal decomposition of sweetener, containing aspartame as sweetening agent, by means isothermal TG method was studied.
      


A solution synthesis method of producing K_3AlF_6—KAlF_4 eutectic fluxwith particle size ranging from 0.1μ to 5μ in diameter without grinding,has beenmade successfully by the reaction of Al(OH)_3 with KOH solution followed byacidizing with HF.No free KF was found in the product.The brazing mechanismof this type of flux has also been investigated.Evidence indicates Si contaminationis easily carried into the product from silicon containing holder-wall in any kind ofsynthesis method.However,the dissolved Si,though...

A solution synthesis method of producing K_3AlF_6—KAlF_4 eutectic fluxwith particle size ranging from 0.1μ to 5μ in diameter without grinding,has beenmade successfully by the reaction of Al(OH)_3 with KOH solution followed byacidizing with HF.No free KF was found in the product.The brazing mechanismof this type of flux has also been investigated.Evidence indicates Si contaminationis easily carried into the product from silicon containing holder-wall in any kind ofsynthesis method.However,the dissolved Si,though often neglected,plays the roleof interfacial surfactant during brazing.Very pure potassium fluoaluminate flux sheerfree from Si,on the other hand,is lacking in brazing activity.The isothermic ther-mogravimetry data show that the SiF_4 decomposed from the K_2SiF_6 addition orproduced by the reaction of flux with holder-wall may be stabilized by AlF_3.Perhaps this is due to the formation of certain compounds like mKF·nAIF_3·pSiF_4in the flux.

用Al(OH)_3和KOH 溶液反应,然后用HF 酸化的方法制备了K_3AlF_6—KAlF_4 共晶钎剂,其中不含游离的KF。钎剂颗粒范围0.1~5μ无需研磨。在研究此种类型钎剂钎焊机理时表明,无论何种合成方法,在其过程中Si 杂质都是极易从含Si 的器壁上带人产物的。就是这种常为人们忽略的溶入杂质Si,在钎焊时起着介面活性剂的作用。此外,完全不含Si 的氟铝酸钾钎剂则活性极低。等温热重法的数据表明,AlF_3能使SiF_4稳定,这可能是在钎剂中生成了mKF·nAlF_3·pSiF_4一类化合物所致。

AUC (Ammonium Uranyl Carbonate) conversion processes have been adopted extensively in nuclear fuel cycle.The kinetics investigation of these processes, however, has not yet been reported in detail at the Published literatures.In the present work, the decomposition kinetics of AUC in hydrogen has been determined by non-isothermal method.DSC curves are solved with computer by Ge Qingren method.The results show that the kinetics obeys Avrami-Erofeev equation within 90% conversion.The apparent activation energy...

AUC (Ammonium Uranyl Carbonate) conversion processes have been adopted extensively in nuclear fuel cycle.The kinetics investigation of these processes, however, has not yet been reported in detail at the Published literatures.In the present work, the decomposition kinetics of AUC in hydrogen has been determined by non-isothermal method.DSC curves are solved with computer by Ge Qingren method.The results show that the kinetics obeys Avrami-Erofeev equation within 90% conversion.The apparent activation energy and preexponent are found to be 113.0 kJ/mol and Z.llxlO11 s"1 respectvely.The reduction kinetics of AUC decomposition Product in hydrogen at the range of 450^600X3 has been determined by isothermal thermgoravimetric-method.The results show that good linear relationship can be obtained from the plot of conversion vs.time, and that the apparent activation energy is found to be 113.9 kJ/mol.The effects of particle size and partial pressure of hydrogen are examined in reduction of AUC decomposition product.The reduction mechanism and the structure of Particle are discussed according to the 昸inetics behaviour and SEM photograph.

AUC转化过程已在核燃料循环中被广泛采用,但此过程的动力学研究至今在公开文献上尚无详细报道。本文用非等温法研究了AUC在氢中的分解动力学。DSC曲线用非线性拟合法在计算机上求解。结果表明:在90%转化率范围内动力学服从Avrami-Erofeev方程,测得分解反应的表观活化能和指前因子分别为113.0kJ/mol和7.11×10~(11)S~(-1)。在450~600℃范围内,用等温热重法研究了AUC分解产物于氢中的还原动力学。结果表明,转化率和时间均呈线性关系,并测得还原反应的表观活化能为113.9kJ/mol。考察了AUC分解产物在还原过程中的粒度效应和氢分压效应。根据动力学行为和扫描电镜(SEM)观察,讨论了还原反应的机理和颗粒的结构。

Pyrolysis reaction of eight Chinese oil shales has been studied by non-isothermal thermogravimetry. The weight loss data were analyzed by Coats-Redfern technique. The first order kinetic equation was established for all oil shales studied. The kinetic parameters were obtained as follows:apparent activation energy E are in the range from 95 to 198 kJ/mol and frequency factor A from 1.2×10~6 to 2.3×10~(13) min~(-1).Correlations between the kinetic parameters and H/C atom ratio of the samples were found as follows:E=17.5+15...

Pyrolysis reaction of eight Chinese oil shales has been studied by non-isothermal thermogravimetry. The weight loss data were analyzed by Coats-Redfern technique. The first order kinetic equation was established for all oil shales studied. The kinetic parameters were obtained as follows:apparent activation energy E are in the range from 95 to 198 kJ/mol and frequency factor A from 1.2×10~6 to 2.3×10~(13) min~(-1).Correlations between the kinetic parameters and H/C atom ratio of the samples were found as follows:E=17.5+15 H/C, In A=12.6+9.1 H/C. The effects of heating rate on the weight loss curves as well as kinetic parameters were investigated.

用非等温热重法考察了五个矿区八种油页岩样品的热解过程,求出了各试样的一级反应动力学参数,提出了试样的热解模型。对比了各试样的热解特征,找出了试样的性质和动力学参数间的关联式:E=17.5+15H/C,lnA=12.6+9.1H/C.实验结果表明,活化能E和频率因子A之间存在着互补关系。考察了升温速率对热分析曲线和动力学参数的影响。

 
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