METHOD OF SCALE REMOVAL

FIELD: cleaning of systems of hot-water supply for mineral deposits. SUBSTANCE: method includes introduction of aqueous suspension of cationite èô-2, adding of 1-100 mg equiv./l of soluble salt of alkali metal, heating of system up to 60-100 C, connecting to air line in moderate conditions of stirri...

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Bibliographische Detailangaben
1. Verfasser:	DANILIN L.D
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	FIELD: cleaning of systems of hot-water supply for mineral deposits. SUBSTANCE: method includes introduction of aqueous suspension of cationite èô-2, adding of 1-100 mg equiv./l of soluble salt of alkali metal, heating of system up to 60-100 C, connecting to air line in moderate conditions of stirring of medium with pH 1-3. EFFECT: provision of removal of dense deposits 1 mm thick from closed volumes of heat exchange equipment operating on water with temporary or constant hardness with minimum labor input and time. 3 cla