Title:
APPLYING METHOD FOR REMOVING SCALE ON SURFACE
Document Type and Number:
Japanese Patent JPS5754898
Kind Code:
A
Abstract:
A method of applying a descaling reagent comprising a one-electron reducing agent which is a low oxidation state transition metal ion in combination with a complexing agent to a surface to be treated to descale the surface which method comprises: (i) maintaining a low oxidation state transition metal ion either in solution under an inert atmosphere in a container made of or lined with an inert material or as a solid salt under an inert atmosphere; (ii) preparing a solution of the complexing agent and removing oxygen therefrom; and (iii) mixing the ingredients from steps (i) and (ii) either in situ in contact with the surface to be treated, or mixing the ingredients from steps (i) and (ii) prior to application to the surface to be treated under conditions whereby no substantial decomposition of the so-formed reagent occurs.
Inventors:
DEIBUITSUDO BURATSUDOBARII
TEIMOSHII SUWAN
MAIKERU JIYAIRUZU SHIIGARU
TEIMOSHII SUWAN
MAIKERU JIYAIRUZU SHIIGARU
Application Number:
JP12585281A
Publication Date:
April 01, 1982
Filing Date:
August 11, 1981
Export Citation:
Assignee:
CENTRAL ELECTR GENERAT BOARD
International Classes:
C02F5/08; C23G1/02; G21F9/00; C23G1/00; G21F9/28; (IPC1-7): C23G1/00; G21D1/00; G21F9/28