C - Chemistry – Metallurgy – 12 – S
Patent
C - Chemistry, Metallurgy
12
S
C12S 3/08 (2006.01) D21C 3/02 (2006.01) D21C 9/02 (2006.01) D21C 9/10 (2006.01) D21F 9/00 (2006.01)
Patent
CA 2079000
A method and apparatus for treating wood pulp that includes incompletely washed brownstock, in which the brownstock is treated at a pH range of approximately 7.0 to 9.0 with a hemicellulase enzyme preparation that has a pH optimum below 6Ø Also, a method and apparatus for treating wood pulp containing incompletely washed brownstock in which the brownstock is treated at a pH range of approximately 6.0 to 9.0 with a hemicellulase enzyme preparation that has a pH optimum below 6.0 and that has a low cellulase content such that not more than about 10,000 FPU are added per ton of pulp.
Foody Brian
Tolan Jeffrey
Iogen Bio-Products Corporation
Mccarthy Tetrault Llp
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