CaZn{hd 2{b (PO{HD 4{B ){HD 2 {B .2H{HD 2{B O anticorrosion pigment

An anticorrosion pigment suited for paints and lacquers and consisting of CaZn2(PO4)2 . 2H2O crystallizing in the Scholzite lattice and having a specific surface according to BET of from 0.1 to 50 m2/g is produced by a process wherein (A) (I) A SALT SOLUTION CONTAINING CALCIUM AND ZINC CATIONS IN A...

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Bibliographische Detailangaben
Hauptverfasser:	KRESSE, PETER, HUND, FRANZ
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOUNDS THEREOF CORRECTING FLUIDS DYES FILLING PASTES INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INKS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS 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:	An anticorrosion pigment suited for paints and lacquers and consisting of CaZn2(PO4)2 . 2H2O crystallizing in the Scholzite lattice and having a specific surface according to BET of from 0.1 to 50 m2/g is produced by a process wherein (A) (I) A SALT SOLUTION CONTAINING CALCIUM AND ZINC CATIONS IN A RATIO OF ABOUT 1:2 IS NORMALLY, INVERSELY OR SIMULTANEOUSLY PRECIPITATED IN AIR AT TEMPERATURES OF UP TO ABOUT 100 DEG C. with an equivalent or substantially equivalent quantity of a solution containing an alkali metal or ammonium phosphate ion; or (ii) compounds of calcium and zinc, which can be decomposed with relatively strong acids or neutralized with acids, in a ratio of about 1:2, have phosphoric acid or ammonium phosphate added to them in approximately the quantity which is required for decomposition or neutralization, or in a slight excess of that quantity, at temperatures of up to about 100 DEG C.