IMPROVED KRAFT PULP YIELD BY HEAT TREATMENT OF POLYSULPHIDE LIQUORS GENERATED BY OXIDATION
摘要
Oxidized white liquor is heat treated to increase the concentration of PSUV measured at 285 or 286 nm or PSVIS measured at 416 nm and the PSUV/PSGR or PSVIS/PSGR ratio, whereby the content of active polysulphide in the total polysulphide is increased which active polysulphide can be exploited to increase pulp yield in Kraft pulping.
申请公布号
CA2430389(C)
申请公布日期
2007.09.25
申请号
CA20022430389
申请日期
2002.01.23
申请人
PULP AND PAPER RESEARCH INSTITUTE OF CANADA
发明人
HU, THOMAS QIUXIONG;PAGE, NATALIE;LECLERC, DENYS FRANCOIS;ULOTH, VICTOR CHARLES;VAN HEEK, RONALD PETER;DORRIS, GILLES MARCEL