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  • 1950-1954  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    A physico-chemical study of the action of lime on coal-tars (1953)
    Springer
    Colloid & polymer science 132 (1953), S. 24-30 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Es wurde die Wirkung von Kalk auf verschiedene Kohlenteerarten untersucht. Man verwendet derartige Mischungen bei der Präparation von Brikettbinde-Stoffen und Straßendeckmaterialien. Es zeigen sich im Mikroskop, ültramikroskop und elektronenmikroskopisch Unterschiede. Auch die Destillationsrückstände verhalten sich verschieden. Kalkbehandelte Teere geben kein Pech, sondern ein poröses koksähnliches Material, das sich im Röntgendiagramm unterscheidet. Auf Grund der Ergebnisse wird versucht, das starke Anwachsen von Viskosität und Bindekraft nach der Kalkeinwirkung auf Teere zu erklären.
    Notes: Summary The action of lime on coal tars, especially the vertical retort and producer gas tars, has beenstudied physicochemically. The reaction finds its use in the preparation of fuel briquette binders and road surfacing materials. Lime-treated and normal tars have been studied by means of the microscope, the ultramicroscope and the electron-microscope. Lime-treated tar has been distilled and the distillate and residue compared with those of the normal tar. The distillation residue from the limetreated tar was not pitch but a porous coke-like material. The X-ray diffraction patterns of the pitch and this coke-like residue have been compared. Finally, an attempt has been made to explain the increase in viscosity and binding power of a producer gas or vertical retort tar on treatment with lime on the basis of the experimental evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01512050
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    An electron-microscopic study of the colloidal structure of coal tars (1953)
    Springer
    Colloid & polymer science 130 (1953), S. 116-120 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Dispersionen von verschiedensten Teeren in Nitrobenzol wurden elektronenmikroskopisch untersucht. Es ergaben sich Mizellen verschiedenster Größen und in einigen Fällen auch von verschiedener Form. Es wurde versucht, Zusammenhänge dieser unterschiedlichen mizellaren Struktur der Teere mit ihrem für die Anwendungen wichtigen Bindevermögen zu erschließen.
    Notes: Summary Dispersions of a few different tars, viz. horizontal retort, vertical retort, coke-oven and producer-gas tars, in nitrobenzene were examined with the help of electronmicroscope. The colloidal micelles in each were found to be different in size and, in some cases, shape as well. An attempt has been made to explain the difference in binding properties, that is, their binding power for road aggregates and coke breeze or coal slurry for briquettes, by studying the micelle structure of the different tars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01519802
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    Paper (German National Licenses)
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  • 3
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    Unknown
    An electron-microscopic study of the colloidal structure of coal tars (1953)
    Springer
    Details
    Publication Date: 1953-02-01
    Print ISSN: 0372-820X
    Electronic ISSN: 1435-1536
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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  • 4
    facet.materialart.
    Unknown
    A physico-chemical study of the action of lime on coal-tars (1953)
    Springer
    Details
    Publication Date: 1953-07-01
    Print ISSN: 0372-820X
    Electronic ISSN: 1435-1536
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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    PAPER CURRENT
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