COMPOSITION FOR REMOVING HIGH-TEMPERATURE MINERAL SALT DEPOSITS FROM THERMAL POWER EQUIPMENT Russian patent published in 2001 - IPC

Abstract RU 2177458 C1

FIELD: thermal power industry, particularly, chemical cleaning from high-temperature mineral deposits of steam and hot-water boilers. SUBSTANCE: composition comprises nitrile (methylenephosphonic) acid, methyliminodimethylene phosphonic acid, hydrochloric acid and acid corrosion inhibitor, ratios of components being as follows, wt.%: nitriletri-(methylenephosphonic) acid, 14-16; methylimino dimethylene phosphonic acid, 4-7; hydrochloric acid, 1-14; acid corrosion inhibitor, 0.5-1.0; and water, the balance. EFFECT: removal of high-temperature mineral deposits, improved cleaning efficiency, reduced volume of sewage after washing operation.

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RU 2 177 458 C1

Authors

Driker B.N.

Aronov M.S.

Khromtsova A.Z.

Tsirul'Nikova N.V.

Van'Kov A.L.

Dates

2001-12-27Published

2000-05-12Filed