Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1985-04-03
1987-04-07
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
423239, 502 22, 502 27, 502 28, 502 34, 502515, B01J 2120, B01J 3866, B01J 3860, B01J 800
Patent
active
046561471
ABSTRACT:
A method for recovering a denitrating catalyst for ammonia catalytic reduction which is characterized by treating the denitrating catalyst for ammonia catalytic reduction, in which a performance has deteriorated, with at least one selected from the group consisting of SO.sub.4.sup.2- compounds, sulfur compounds and sulfonic acid compounds in order to replenish the catalyst with a sulfur content.
REFERENCES:
patent: 4003711 (1977-01-01), Hishinuma et al.
patent: 4107272 (1978-08-01), Mori et al.
Iida Kozo
Mitsuoka Shigeaki
Nagano Tsuneo
Obayashi Yoshiaki
Yokoyama Naruo
Konopka P. E.
Mitsubishi Jukogyo Kabushiki Kaisha
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