Method of minimizing slagging in the burning of black liquid

Details Method of minimizing slagging in the burning of black liquid Method of minimizing slagging in the burning of black liquid

1983-04-18

1985-04-30

Smith, William F.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

110343, 110346, 162 48, 44 5, D21C 1112, C10L 1000, F23J 100

Patent

active

045142564

ABSTRACT:
The formation of slag is minimized and the removability of slag is greatly increased, in connection with the furnace burning of black liquor, by applying to the surfaces where slag tends to form a substance which, under black liquor furnace conditions, reacts with the sodium sulfide content of the black liquor ash to oxidize said sodium sulfide and to be itself reduced, such substances preferably comprising sodium persulfate, manganese dioxide, cupric oxide and ferric oxide and mixtures thereof.

REFERENCES:
patent: 3332755 (1967-07-01), Kukin
patent: 3547605 (1970-12-01), Cornelius et al.
patent: 3692503 (1972-09-01), Kukin
patent: 3713792 (1973-01-01), Wiley
patent: 3800466 (1974-04-01), Heit
patent: 3837820 (1974-09-01), Kukin
patent: 4000264 (1976-12-01), Nigano et al.
patent: 4047875 (1977-09-01), May et al.
patent: 4159683 (1979-07-01), Hughes et al.

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