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  • 1
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 38 (1992), S. 1864-1870 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The gas holdup in different arrays of expanded metal sheets was determined by the conductimetric method.A model had to be developed for analyzing the conductimetric behavior of the cell in the presence of the metallic sheets. The validity of this model has been verified with single phase flow. The application to two-phase flow allowed the obtaining of information on gas accumulation within stacked expanded metal sheets, showing a strong influence of the geometry of the array. Depending on the orientation of the stacked sheets and of the large dimension of the expanded metal, the gas holdup within the packing will be equal or larger than in an empty bubble column.
    Additional Material: 9 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 25 (1979), S. 368-370 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 30 (1979), S. 685-689 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Inhibition of low temperature circulating systems with lithium hydroxide in power stationsCorrosion current density measurements of mild steel St 37 in deionized, air-saturated water between 20 and 60°C showed that addition of small quantities of lithium hydroxide (ca. 25 ppm) protects against corrosion attacks similar to pitting corrosion and is found adequate even up to 5 ppm chloride ion concentration.Constant strain rate tests of mild steel St 37 showed no indication of stress corrosion cracking (SCC) at 70°C, up to 500 ppm lithium hydroxide, and 100 ppm chloride ion concentration. Metallographic examination of specimens indicated intergranular stress cracking with cracks of 1-30 m̈m depth in environments containing 2%, 4%, and saturated lithium hydroxide (with solid excess salt) at 70°C. Accumulation of lithium hydroxide should therefore be avoided.No SCC was observed in austenitic stainless steel X 5 CrNi 18 9 specimens in the above environments.
    Notes: Durch elektrochemische Bestimmung der „Korrosionsstromdichte“ wird festgestellt, daß gering Zusätze von Lithiumhydroxid (etwa 25 ppm) zu entionisiertem, luftgesättigtem Wasser im Temperaturbereich 20°C bis 60°C ausreichen, um St 37 gegen Sauerstoff- und lochartige Korrosion zu schützen. Diese Schutzwirkung ist auch gegeben, wenn das Wasser bis zu 5 ppm Chlorid enthält.Bei der Prüfung auf Spannungsrißkorrosion nach dem Verfahren mit konstanter Dehnungsgeschwindigkeit trat bei 70°C bis zu 500 ppm Lithiumhydroxid und bis 100 ppm Chlorid keine Spannungsrißkorrosion auf. Bei 2% und 4% Lithiumhydroxid bzw. gesättigter Lösung mit Bodenkörper zeigten sich bei metallographischer Überprüfung der Proben interkristalline Anrisse mit einer Tiefe von 1 bis 30 m̈m. Starke Aufkonzentration von Lithiumhydroxid muß daher im Wasser des Systems sicher vermieden werden.An dem austenitischen Stahl X5 CrNi 189 wurde in den entsprechenden Medien keine Korrosion beobachtet.
    Additional Material: 8 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 6 (1894), S. 386-391 
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 14 (1991), S. 287-293 
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A study of mass transfer to regular packings by the electrochemical technique is presented in this paper. The excellent properties of radial mixing were verified and the correlation for mass transfer rate was also obtained. It was found that the energy efficiency, which is represented by the LeGoff number, is higher than that of other packings due to the low pressure drop shown by these arrangements.
    Additional Material: 9 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 15 (1992), S. 327-330 
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two ways of enhancing liquid to solid mass transfer in regular packings are proposed and investigated: the introduction of a fluidized bed of inert particles and of turbulence promoters by constructing the packing from expanded metal. It is shown that both systems can be of considerable benefit in improving the mass transfer performance: up to 200% in the first case and up to 130% in the second case. However, the energy dissipated by fluidized particles is excessive in comparison to that consumed by turbulence promoters.
    Additional Material: 6 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 149 (1925), S. 217-222 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Röntgenaufnahmen von Sc2 O3, Fe2O3, Cr3O3, tiO2, ZrO2, Nb2O5, Ta2O5, vor und nach dem Verglimmen bestätigen, daß es sich hier um den Übergang amorph-kristallin handelt.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 160 (1927), S. 152-164 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 183 (1929), S. 151-188 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. In der angesäuerten Thiosulfatlösung spielen sich noch vor dem Erscheinen der Trübung Reaktionen ab, erkennbar an der Steigerung des Jodtiters und Nachweisbarkeit der Pentathionsäure.
    Additional Material: 2 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 243 (1939), S. 69-85 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es wurden die Angaben über die Verbindung der Alkalimetalle zueinander nachgeprüft, wobei auch röntgenographische Methoden benutzt wurden. Erstmalig untersucht wurden die Systeme Lithium/Rubidium und Lithium/Cäsium.
    Additional Material: 16 Ill.
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