a acc to orderrelated documentation Without oil B2DH-14-C Bevel-helical speed reducer B2

Flender/Flender Gear Units/Bevel-helical speed reducer B2

n1 by this way the mentioned cooking department and its combustion together with cooking black liquor. ? waste water problem can be solved by consequent recyc1ing. all bleaching effluents to the 2. Working steps In. wood pulping using alkaline sulfite solutions with addition of anthraquinone and methanol basic investigations were conducted using spruce chips. The different pul ing parameters like totat chemical charge, the sodium sulfite to sodium hydroxide, respectiveb sodium carbonate rati0,anthraquinone charge as well as methanol content of the cooking liquorwere investigat- ed. More over the influence of cooking time and maximum temperature on delignification were determinded. After optimising the basic pulpin parameters pulping of differentwood species was conduct- wheat and rice straw, sugarcane bagasse, sweet sor hum and elephantgras were used. For all wereanalysed, in particular itslignin content,themolecularweightdistribution ofthedissolved lignins, its degree of sulfonation as well as changes of the structure of dissolved lignins during the cookwere determined. The anthraquinone consumption during the di estion was investi- gated. Usin radioactive labelled methanol the reactions of this additive juring the cook was investigatei. The potential recovery rates of the methanol were determind. By FTlR monitoring the amount of dissolved lignin during the cook was determined and thus process control method established. The produced pulps were submitted to conventional as well as chlorine free bleaching sequences and the main emphasis was put on the latter one. For softwood pulpsthesequencealkali oxygen (),ozone(),extraction ()and peroxide()wasapplied. For ed. Raw materials like pine, beec % , poplar, birch and oak as well as different annual plants like pulps technological as well as optical properties an 1 DPvalue were determined. Black liquors 2 hardwood and anual lant pulps the bleaching sequence ZEP was preferred. Apart from the opti