D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 9/16 (2006.01) D21C 9/10 (2006.01)
Patent
CA 2063351
A process is provided for peroxygen bleaching of high yield pulp in which sodium carbonate replaces sodium hydroxide and sodium silicate. The process employs a chelating agent as a substitute for the silicate normally required so that the process can operate as a closed cycle system.
Heimburger Stanley Alan
Meng Tommy Yi
Tremblay Steve Etienne
Fmc Corporation
Osler Hoskin & Harcourt Llp
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