Precipitated silicic acid
作者： Bernhard Schwaiger , Mustafa Siray , Burkhard Freund , Anke Blume , Stefan Uhrlandt
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摘要: Precipitated silica having the following parameters: BET surface area 80-180 m 2 /g CTAB 80-139 BET/CTAB ratio 1.0-1.6 Sears No. (consumption of 5-25 ml 0.1 N NaOH) DBP 200-300 ml/100 g Al O 3 content <5% wk coefficient <3.4 Degraded particles <1.0 μm Non-degradable 1.0-100 is prepared by reacting alkali silicate with mineral acids and aluminum sulfate solution at temperatures 60-95° C. a pH 7.0-10.0 while stirring constantly, wherein reaction continued to solids concentration 40-110 g/l, adjusted value between 5, precipitated filtered off, washed then dried, optionally ground or granulated.
google.it 参考文章(9)
Yves Bomal, Philippe Cochet, Yvonick Chevallier, Novel method for preparing precipitated silica, novel aluminium-containing precipitated silicas, and use thereof for reinforcing elastomers ,(1996)
Mustafa Dr Siray, Burkhard Dr Freund, Anke Dr Blume, Stefan Dr Uhrlandt, Readily dispersible precipitated silica ,(1998)
Oleg Stenzel, Hans-Detlef Luginsland, Stefan Uhrlandt, André Wehmeier, Highly dispersible precipitated silica ,(2003)
Yves Bomal, Philippe Cochet, Yvonick Chevallier, Process for the preparation of precipitated silica, new precipitated silicas containing zinc and their use for the reinforcement of elastomers ,(1996)
Ralf Dr Rausch, Robert Kuhlmann, Heinz Esch, Karin Dr Otto, Matthias Neumueller, Verfahren zur Herstellung einer Fällungskieselsäure ,(1994)
Satish K. Wason, Preparation of precipitated silicas having controlled refractive index ,(1976)
Peter Van Der Heem, Satish Kumar Wason, Silicon oxide pigments used for toothpaste prodn ,(1973)
Robert Kenneth Mays, Satish Kumar Wason, Feine modifizierte kieselsaeure, ihre herstellung und verwendung ,(1976)
Andrea Hunsche, Robert Kuhlmann, Heinz Esch, Mustafa Dr Siray, Udo Dr Goerl, Precipitated silicas, process for their preparation and their use in vulcanizable rubber mixtures ,(1996)