Main > PAPER & PULP > Pulp > Delignification > Oxygen Delignification

Product USA. B. No. 1

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 06.99
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS - Providing pulp slurry of 10-16% consistency at 170-240F
- Adjusting pH > 11
- Adding O gas with agitating mixing
- Reacting slurry with O gas in first pressurized reactor
- Adjusting pH > 11
- Impregnating slurry with H2O2 & O gas
- Reacting slurry in second reactor at 170-240F at pH > 10
PATENT PHOTOCOPY Available on request

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