发明名称 |
ENZYMATIC DEINKING PROCESS |
摘要 |
<p>Good deinking of waste paper can be obtained at high consistency by first pulping at high pH, then lowering the pH, adding alkaline cellulase and letting the cellulase act during continued pulping and/or maceration. The improved deinking results in higher whiteness and better cleanliness (fewer ink particles) in paper made from the treated pulp after separation of ink particles. This cellulase treatment results in better operation of certain equipment such as thickeners and in better drainage of the pulp during paper making.</p> |
申请公布号 |
WO9114819(A1) |
申请公布日期 |
1991.10.03 |
申请号 |
WO1991DK00090 |
申请日期 |
1991.03.21 |
申请人 |
NOVO NORDISK A/S;E. & M. LAMORT |
发明人 |
BARET, JEAN-LUC, ALAIN, GUY;LECLERC, MARC;LAMORT, JEAN-PIERRE |
分类号 |
C12S3/08;C12N9/42;D21C5/00;D21C5/02 |
主分类号 |
C12S3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|