PROCEDE DE PROTECTION ANTICORROSIVE DES POMPES DE CYCLAGE DU FLUOR

The process comprises coating of the pump ebonite with three layers of protective film to a total thickness of 4.0 mm. This increases pump service life by a factor of 1.5-2. Fluorine is recovered from phosphoric acid mfr. and from fluorine salt prodn. based on hexafluoro silicic acid with reduced da...

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Bibliographische Detailangaben
1. Verfasser:	DASCALU VASILE,RO
Format:	Patent
Sprache:	fre ; rum
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
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Beschreibung
Zusammenfassung:	The process comprises coating of the pump ebonite with three layers of protective film to a total thickness of 4.0 mm. This increases pump service life by a factor of 1.5-2. Fluorine is recovered from phosphoric acid mfr. and from fluorine salt prodn. based on hexafluoro silicic acid with reduced damage to the pumps.