C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
149/13
C23G 1/08 (2006.01) C02F 1/64 (2006.01) C02F 1/72 (2006.01) C02F 5/08 (2006.01) C23G 1/02 (2006.01)
Patent
CA 1245955
ABSTRACT OF THE DISCLOSURE A process for the removal of solid deposits, especially calcium-, iron-, manganese-containing incrustations and mixtures thereof, from water supply installations wherein an aqueous solu- tion comprising a mineral acid, preferably hydrochloric acid corresponding to a normality of the solution of 0.001N to 6N, and hydrogen peroxide in a proportion of 0.05 to 20% by weight of the total solution, is applied to the interior surfaces of the installations by, for example, spraying or rinsing. -13-
482720
Kotzsch Thomas
Spane Rainer
Mccarthy Tetrault Llp
R. Spane G.m.b.h. & Co. Kg
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