Chemistry of inorganic compounds – Sulfur or compound thereof – Binary compound
Patent
1988-03-10
1989-08-08
Mc Farlane, Anthony
Chemistry of inorganic compounds
Sulfur or compound thereof
Binary compound
423642, 162 82, 162 90, 210763, 502180, C01B 1722, C01D 104
Patent
active
048551236
ABSTRACT:
A method of treating an aqueous sodium sulfide solution, such as white liquor in kraft pulping systems, for the oxidation of the sulfide with oxygen in the presence of a specific activated carbon catalyst which is (a) a particulate activated carbon catalyst having an average particle diameter of 0.2-4 mm, a pore volume of at least 0.25 cc/g in pores with diameters of not smaller than 100 .ANG. and a pore volume of at least 35% of the total pore volume in pores with diameters of not smaller than 100 .ANG. or (b) a fibrous activated carbon catalyst having a specific surface area of 300-2500 m.sup.2 /g and an outer surface area of 0.1-5 m.sup.2 /g.
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Hara Shin-ichi
Kimura Kuniaki
Nakamura Munekazu
Ohguchi Yoshihiro
Ono Takeo
Mc Farlane Anthony
Mitsubishi Paper Mills Ltd.
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