Metal oxide pigments - by gas phase reaction in reactor with ceramic-coated porous walls
In the prodn. of finely-divided metal oxides, suitable as pigments, pref. at elevated temp. from gaseous reactants, which flow through the walls of the reactor of porous carbons and/or graphite,the reactor walls have a thin ceramic protective coating. The coating eliminates wear of the reactor walls...
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| creator | FUHR,WERNER,DR JASCHINSKI,KLEMENS BRAENDLE,KARL,DR WEIDMANN,WALTER ZIRNGIBL,HANS,DR |
| description | In the prodn. of finely-divided metal oxides, suitable as pigments, pref. at elevated temp. from gaseous reactants, which flow through the walls of the reactor of porous carbons and/or graphite,the reactor walls have a thin ceramic protective coating. The coating eliminates wear of the reactor walls and is esp. useful in TiO2 pigment mfr. It should be = 0.8mm thick and consists of Al, Zr, Ti and/or Cr oxide(s). |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Metal oxide pigments - by gas phase reaction in reactor with ceramic-coated porous walls |
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