Process for recovery of sulfur dioxide liberated in the chemical

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...

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162 3011, 162 35, 162 36, 162 38, 423486, 423522, 423539, 423DIG3, D21C 1100, D21C 1106

Patent

active

045085935

ABSTRACT:
A process is provided for the recovery of sulfur dioxide liberated in the chemical pulping of lignocellulosic material, which comprises

REFERENCES:
patent: 4098639 (1978-07-01), Norcus et al.
patent: 4393035 (1983-07-01), Fredette
patent: 4393036 (1983-07-01), Fredette

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