BLEACHING METHOD AND APPARATUS ABSTRACT The present invention relates to a method and apparatus for bleaching textile fabrics in two stages that comprise a chemical bleaching stage and an ozone bleaching stage. In the chemical bleaching stage, the textile fabric is bleached with an aqueous solution composed of...

ABSTRACT OF THE DISCLOSURE Sponge iron is produced by direct reduction of iron ore or iron ore pellet in a rotary kiln utilizing a first and a second carbonaceous material stream, and a plurality of oxygen streams derived from an oxygen source supplying commercial grade oxygen. The oxygen stream from the oxygen so...

Iron ore, carbonaceous reducing agent and dolomite are fed into the feed end of an elongated rotary furnace, finely divided coal into the discharge end of the furnace and gaseous oxidant having an oxygen content higher than that of air are into the reducing zone of the furnace via the end burner at its discharge end...