ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Flue gas desulphurization at low temperatures - Thermogravimetric characterization of the reaction product
    Amsterdam : Elsevier
    Thermochimica Acta 207 (1992), S. 255-264 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(92)80141-I
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Integral kinetic analysis from temperature programmed reaction data: alkaline hydrolysis of ethyl acetate as test reaction
    Amsterdam : Elsevier
    Thermochimica Acta 141 (1989), S. 169-180 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(89)87052-2
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Thermal decomposition of (C"6H"5-NH"3)"4Mo"8O"2"6 . 2H"2O. isothermal and non-isothermal kinetic analysis
    Amsterdam : Elsevier
    Thermochimica Acta 98 (1986), S. 81-87 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(86)87077-0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Reaction scheme in the non-isothermal decomposition of (C6H5NH3)4Mo8O26 · 2 H2O (1984)
    Springer
    Journal of thermal analysis and calorimetry 29 (1984), S. 589-596 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die thermische Zersetzung von Anilinoctamolybdat wurde unter nicht-isothermen Bedingungen thermogravimetrisch untersucht, um die im ersten Zersetzungsschritt der wasserfreien Verbindung verlaufenden chemischen Reaktionen aufzuklären. Die Zersetzungsprodukte wurden mittels Gas-Flüssigkeits-Chromatographie, Gaschromatographie-Massenspektrometrie (GC/MS), Infrarotspektroskopie und Röntgendiffraktometrie analysiert. Als Hauptprodukt der Zersetzung von Anilin wurde Indol gefunden, während bei isothermer Zersetzung bei gleicher Temperatur vorwiegend N-Äthylanilin entsteht. Es wird angenommen, daß beim nicht-isothermen Prozeß eine wahrscheinlich durch das Octamolybdat katalysierte Dehydrocyclisierungsreaktion verläuft.
    Abstract: Резюме В неизотермических у словиях проведено термогравиметричес кое разложение октамолибдата анили ния с целью выяснения химических реакций, протекающих на первой стадии разложения бе зводного соединения. Анализ продуктов разложени я проведен методом газо-жидкостной хром атографии, методом га зовая хроматография-масс-с пектрометрия, ИК спектроскопией и п орошковой рентгеног рафией. Основным продуктом р азложения анилина являлся индо л, тогда как при изотер мическом разложении-N-этилани лин. Для процесса обра зования индола предл ожена реакция дегидроцикл изации, которая возможно, вызвана кат алитическим действи ем октамолибдат-аниона.
    Notes: Abstract The thermogravimetric decomposition of anilinum octamolybdate has been studied under non-isothermal conditions to elucidate the chemical reactions taking place in the first step of decomposition of the anhydrous compound. The decomposition products were analyzed by gas-liquid chromatography, gas chromatography-mass spectrometry (GC/MS), infrared spectroscopy and X-ray powder diffraction. The main decomposition product of aniline turned out to be indole, which is different from the major product in the isothermal decomposition at the same temperature, i.e. N-ethyl-aniline. A dehydrocyclization reaction is suggested as the rate-dependent process. This is probably due to the catalytic effect of the octamolybdate anion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01913468
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Kinetic analysis of liquid-phase depolymerization of trioxane from programmed temperature data (1987)
    Springer
    Journal of thermal analysis and calorimetry 32 (1987), S. 1333-1344 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Eine sequentielle kinetische Unterscheidung potentieller kinetischer Modelle für die nicht-isotherme, linear temperaturprogrammierte Depolymerisation von Trioxan in homogener flüssiger Phase wird diskutiert. Der Einfluß der Ausgangskonzentration auf die kinetischen Kurven wurde als experimentelle Bestätigung dafür angesehen, daß die Konzentration auf das Modell nach erster Ordnung einwirkt. Die kinetische Analyse bei konstanter Temperatur und Konversion ermöglicht eine Trennung des Einflusses der Konzentration und Temperatur auf die kinetische Analyse bei unterschiedlichen Werten dieser Variablen. In der vorliegenden Arbeit wurde anhand von nichtisothermen kinetischen Daten für die Depolymerisation von Trioxan gezeigt, daß nicht-isotherme Experimente eine systematische Näherung an das kinetische Verhalten in einem weiten Bereich der Variablen Temperatur und Konzentration erlauben und zu einen Maximum an Erkenntnissen über das Reaktionsmodell bei einem Minimum an experimentellen Aufwand führen.
    Abstract: Резюме Обсуждено последова тельное кинетическо е различие потенциаль ных кинетических моделей для неизотер мического линейно-пр ограммного нагрева гомогенной ж идко-фазной реакции деполимериз ации триоксана. Влиян ие начальной концентрации на кине тические кривые было использовано в к ачестве эксперимент ального подтверждения перво го порядка влияния концентрации на моде льную реакцию. Кинети ческий анализ при постоянно й температуре и степень превращения позволили разделить влияние концентрации и темпе ратуры на кинетический анализ при различных степен ях этих переменных. На пример е неизотермических кинетических данных реакции деполимериз ации триоксана доказано, ч то неизотермические эксперименты позвол яют осуществить сист ематический подход к кинетическо му поведению в широкой области пере менных, температуры и концентрации, давая т ем самым максимум знаний о модельной ре акции при минимуме экспериментальных п опыток.
    Notes: Abstract A sequential kinetic discrimination of potential kinetic models for non-isothermal linear programmed temperature data on the depolymerization of trioxane in a homogeneous liquid phase has been discussed. The influence of the initial concentration on the kinetic curves has been used as an experimental confirmation of the first-order influence of the concentration on the model. Kinetic analysis at constant temperature and conversion permits separation of the effects of concentration and temperature on the kinetic analysis at different levels of the variables. It is provided via non-isothermal kinetic data on the depolymerization of trioxane that nonisothermal experiment's allow a systematic approach to the kinetic behaviour in a wide range of the variables temperature and concentration, leading to maximum knowledge of the reaction model through minimum experimental effort.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01913333
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Kinetic analysis of the liquid-phase depolymerization of trioxane from programmed-temperature data (1987)
    Springer
    Journal of thermal analysis and calorimetry 32 (1987), S. 997-1004 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Eine experimentelle Methode zur Bestimmung der kinetischen Daten von Reaktionen in flüssiger Phase bei linearer Temperaturerhöhung wird am Beispiel der Depolymerisation von Trioxan erklärt. Eine integrale kinetische Analyse der Daten wird ausgeführt, um das kinetische Modell und die kinetischen Parameter zu ermitteln. Bei unterschiedlicher Aufheizgeschwindigkeit zwischen 0,5 und 2 K/min ausgeführte Experimente ergaben ähnliche kinetische Parameter. Die erhaltenen Ergebnisse stimmen mit dem kinetischen Modell und den kinetischen Parametern, die durch isotherme kinetische Analyse erhalten wurden, überein. Die Temperaturprogrammierung scheint eine brauchbare, experimentelle Arbeit einsparende Methode zur schnellen Bestimmung des kinetischen Modells zu sein.
    Abstract: Резюме Для объяснения реакц ии деполимеризации триоксана был исполь зован экспериментал ьный метод определения ки нетических данных ре акций в жидкой фазе в условия х линейного нагрева. Для определе ния кинетической мод ели и кинетических параме тров был проведен интегральный кинети ческий анализ данных. Эксперименты, провед енные при различных скоростях нагрева (0,5–2° в мин.), привели к одина ковым кинетическим параме трам. Полученные результа ты хорошо согласуютс я с кинетической модель ю и параметрами, полученными при изот ермическом кинетиче ском анализе. Таким образом, метод п рограммированного нагрева является пол езным для быстрого оп ределения кинетических моделе й и не требует при этом пров едения эксперимента.
    Notes: Abstract An experimental method for the determination of kinetic data for liquid-phase reactions under linear rise of temperature is explained for the depolymerization of trioxane. Integral kinetic analysis of the data is performed in order to determine the kinetic model and the kinetic parameters. Experiments have been carried out at different heating rates between 0.5 and 2 deg/min, leading to similar kinetic parameters. The obtained results are in agreement with the kinetic model and parameters obtained from isothermal kinetic analysis. The programmedtemperature method seems to be a useful tool for a quick determination of kinetic models, avoiding experimental work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01905155
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Kinetic interpretation of the thermal decomposition of anilinium octamolybdate at different heating rate (1984)
    Springer
    Journal of thermal analysis and calorimetry 29 (1984), S. 1131-1137 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es ist oft gezeigt worden, da\ es schwierig ist, für nicht-isotherme Zersetzungen von Festkörpern unter verschiedenen kinetischen Modellen das entsprechende auszuwÄhlen. In der vorliegenden Arbeit wurden die für die komplexe nicht-isotherme, bei unterschiedlichen Aufheizgeschwindigkeiten ausgeführte Zersetzung von Anilinium-octamolybdat erhaltenen Daten analysiert, wobei die Temperaturwerte bei gleicher Konversion berücksichtigt wurden, um im kinetischen Modell den Einflu\ der Temperatur auf die Konversion auszuschalten. Die scheinbare Aktivierungsenergie und die kinetische Konversionsfunktion sind angeführt, jedoch war es nicht möglich, ein einfaches kinetisches Modell für die untersuchte Zersetzungsreaktion anzugeben.
    Abstract: РЕжУМЕ НЕОДНОкРАтНО УкАжыВ АлОсь НА тРУДНОсть РАспОжНАВАНИь РАжлИ ЧНых кИНЕтИЧЕскИх МОДЕлЕИ НЕИжОтЕРМИЧ ЕскОгО РАжлОжЕНИь тВ ЕРДых тЕл. В пРЕДстАВлЕННОИ РАБО тЕ пРОАНАлИжИРОВАНы ДАННыЕ НЕИжОтЕРМИЧЕ скОгО РАжлОжЕНИь АНИ лИНИИ ОктАМОлИБДАтА пРИ РА жлИЧНых скОРОстьх НАгРЕВА, УЧ ИтыВАь жНАЧЕНИь тЕМп ЕРАтУРы пРИ тОМ жЕ сАМОМ пРЕВРАЩЕ НИИ тВЕРДОгО тЕлА с цЕпьУ РАжДЕлИт ь тЕМпЕРАтУРНыИ ЁФФЕ кт кОНВЕРсИОННОгО ВлИь НИь В кИНЕтИЧЕскОИ МОДЕлИ. пРИВЕДЕНы РЕж УльтАты ОпРЕДЕлЕНИь кАжУЩЕгОсь кОЁФФИцИЕНтА ЁНЕРгИ И АктИВАцИИ И кИНЕтИЧс кАь ФУНкцИь пРЕВРАЩЕ НИь. ВМЕстЕ с тЕМ НЕ пРЕДстАВИлОсь ВОжМОжНыМ ОпРЕДЕлИть пРОстУУ к ИНЕтИЧЕскУУ МОДЕль Р АжлОжЕНИь.
    Notes: Abstract It has been shown many times, how difficult it is to discriminate among different kinetic models for the non-isothermal decompositions of solids. In this work non-isothermal decomposition data for the complex decomposition of anilinium octamolybdate at different heating rates have been analyzed taking into account temperature values at the same solid conversion in order to divide the temperature influence from the conversion influence in the kinetic model. Results for the apparent activation energy factor and kinetic conversion function are given. Nevertheless it has been not possible to assign a simple kinetic model to the decomposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02188866
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Application of chitosan to cobalt recovery: Evaluation by factorial design of experiments (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 33 (1987), S. 2107-2115 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A natural polymer in a commercially available form (chitosan) has been tested using a factorial design of experiments for its application to cobalt recovery either in hydrometallurgy and in analytical separations. A simple mechanically stirred system has been used, evaluating the influence of the contact time, iron(II), cobalt (II), chitosan concentration, salinity, and pH in the separation. The pH value has a dramatic influence on the metal recovery from a negligible amount of metals at pH = 1.0 to a quantitative sorption at pH = 3.0. Linear relationships between sorbed metal and the variables have been determined at constant pH value and a quantitative evaluation of the metal recovery at different pH values can be performed using the maximum sorption capacity of the chitosan (a0) and the selectivity for both metals. The obtained results allow the evaluation of the recovery of metals using chitosan as solid phase.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1987.070330622
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    facet.materialart.
    Unknown
    A comparative study between the fluxes of trace elements in bulk atmospheric deposition at industrial, urban, traffic, and rural sites (2015)
    Springer
    Details
    Publication Date: 2015-05-05
    Print ISSN: 0944-1344
    Electronic ISSN: 1614-7499
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Contribution to closing the loop on waste materials: valorization of bottom ash from waste-to-energy plants under a life cycle approach (2018)
    Springer
    Details
    Publication Date: 2018-02-07
    Print ISSN: 1438-4957
    Electronic ISSN: 1611-8227
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...