Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1982-06-21
1985-04-02
Alvo, Steve
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
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
Alvo Steve
Mo och Domsjo Aktiebolag
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