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2 086 704

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C1

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IPC

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Application

4947626/25, 1991-06-21

(22)

Actual filing date

1991-06-21

(45)

Published

1997-08-10

(72)

Inventor

Brushtejn Evgenij Abramovich[Ru]Vasina Svetlana Jakovlevna[Ru]Lazaricheva Irina Viktorovna[Ru]Petrij Oleg Aleksandrovich[Ru]Olisov Aleksandr Vladimirovich[Ru]Jurgenson Nikolaj Viktorovich[Ru]Lagutkin Anatolij Petrovich[Ru]Smirnova Valentina Vasil'Evna[Ua]

(73)

Holder

Khimicheskij Fakul'Tet Mgu Im.M.V.LomonosovaGosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Azotnoj Promyshlennosti I Produktov Organicheskogo Sinteza

METHOD OF REGENERATION OF PLATINOID CATALYST Russian patent published in 1997 - IPC

Abstract RU 2086704 C1

FIELD: manufacture of nitric acid. SUBSTANCE: platinoid catalyst network is polarized with anodic current of 0.05-0.5 mA•cm-2 under electroplating conditions in 5-10% nitric acid solution. Said treatment effectively cleans the surface from catalyst toxins, and surface layer is enriched catalytically with more active component (platinum) since rhodium oxide predominantly passes in solution. EFFECT: more efficient regeneration method. 1 tbl

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RU 2 086 704 C1

Authors

Brushtejn Evgenij Abramovich[Ru]

Vasina Svetlana Jakovlevna[Ru]

Lazaricheva Irina Viktorovna[Ru]

Petrij Oleg Aleksandrovich[Ru]

Olisov Aleksandr Vladimirovich[Ru]

Jurgenson Nikolaj Viktorovich[Ru]

Lagutkin Anatolij Petrovich[Ru]

Smirnova Valentina Vasil'Evna[Ua]

Dates

1997-08-10—Published

1991-06-21—Filed

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