Kraft Pulping of Coppice Grown Eucalypts

摘要

Pulping and bleaching investigations were carried out on coppice grown Eucalyptus tereticornis and Eucalyptus grandis. It was observed that bleachable grade pulps could be obtained from coppice grown eucalypts. These pulps could be bleached to 76-78% ISO brightness by the conventional CEHH sequence. When compared to main plantation grown eucalypts, the pulps produced from coppice wood showed slightly lower strength characteristics. It was also found that the black liquors from the main plantation eucalypts were characterized by lower viscosity and better burning properties than the black liquors from coppice grown woods.