Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal
Patent
1981-05-18
1986-05-06
Gron, Teddy S.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Maintaining environment nondestructive to metal
241DIG38, 252626, 422 3, 422 9, 422 12, C23F 1104, C23F 1118
Patent
active
045870985
ABSTRACT:
A method of minimizing corrosion deterioration and hydrogen absorption embrittlement of tantalum encountered in performing acid digestion of organic waste matter put in an acid digestion kettle of tantalum containing high temperature high concentration sulfuric acid includes the addition of nitric acid, nitrous acid, nitrates, nitrites and/or nitrogen oxides to the sulfuric acid bath.
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Stern, M. and C. Bishop, 1963, "Corrosion and Electrochemical Behavior", In: Sisco and Epremian, Columbium and Tantalum, John Wiley and Sons, New York, pp. 304-312, 579-596.
Tantulum: Acid-Proof Process Equipment, Dec. 1937, Fansteel Metallurgical Corporation, Chicago, Illinois, 33 pages.
Fukuzuka Toshio
Kami Kubo Fumio
Miyazaki Hitoshi
Mizuno Ryukichi
Ohtsuka Katsuyuki
Doryokuro Kakunenryo Kaihatsu Jigyodan
Gron Teddy S.
Kabushiki Kaisha Kobe Seiko Sho
Locker Howard J.
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