Journal . to !HX> P., whereby the cyanide is decomposed, andammonia formed therefrom, which is condensed in the usual manner. After this decomposition has taken place,the mass is treated with superheated steam of a highertemperature, when the sulphide is destroyed, giving offsulphuretted hydrogen. The formation of cyanide inthe black ash is due to the presence of nitrogen in themixing slack, and this fac( is utilised in connection withthe recovery of ammonia, by employing a mixing slack,containing a high percentage of nitrogen. In Dairyingout this invention, the black ash is broken into lum
Journal . to !HX> P., whereby the cyanide is decomposed, andammonia formed therefrom, which is condensed in the usual manner. After this decomposition has taken place,the mass is treated with superheated steam of a highertemperature, when the sulphide is destroyed, giving offsulphuretted hydrogen. The formation of cyanide inthe black ash is due to the presence of nitrogen in themixing slack, and this fac( is utilised in connection withthe recovery of ammonia, by employing a mixing slack,containing a high percentage of nitrogen. In Dairyingout this invention, the black ash is broken into lumps ofabont three inches diameter, by the travelling crusherU (Figs. 1, 2, 3), which stands on the top of the decom-poser A, just above the charging hole ». The draw ingsshow three cylindrical decomposers A, which arc provided s.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
