ANTICORROSION PIGMENT

FIELD: chemical technology, paint and varnish industry. ^ SUBSTANCE: anticorrosion pigment represents calcium-phosphate-molybdate with the ratio molybdate ions to phosphate ions from 1:0.01 to 1:100. For preparing this pigment calcium carbonate is mixed with water, stirred at 95oC for 1 h and soluti...

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Bibliographische Detailangaben
Hauptverfasser:	ROMANOVSKIJ D.V, SKOPINTSEVA M.V, INDEJKIN E.A
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	FIELD: chemical technology, paint and varnish industry. ^ SUBSTANCE: anticorrosion pigment represents calcium-phosphate-molybdate with the ratio molybdate ions to phosphate ions from 1:0.01 to 1:100. For preparing this pigment calcium carbonate is mixed with water, stirred at 95oC for 1 h and solution containing ammonium permolybdate and ortho-phosphoric acid is added to the prepared suspension at intensive stirring. After addition of all components the mixture is stirred for 5 h additionally. Suspension is dried at 380oC. Prepared pigment has bright-white color, its solubility in water is less as compared with calcium phosphate-chromate, it has no toxic properties, its anticorrosion properties after change of chromate ions for molybdate ions are not deteriorated. ^ EFFECT: improved preparing method, valuable properties of pigment. ^ 1 tbl, 3 ex