PROCESS FOR PREPARING AN ANTICORROSION COMPONENT FOR AN ANTIFREEZE

A process for preparing an anticorrosion component for antifreeze by oxidation of an oxydiol (I) in which x is 0 (zero) or a positive integer from 1 to 10 with molecular oxygen at a temperature of 20 to 100°C and a partial oxygen pressure of 0.01 to 2 MPa in the presence of water and a heterogeneous...

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Bibliographische Detailangaben
Hauptverfasser:	DIETL, Harald, VAUTRAVERS, Nicolas, TELES, Joaquim Henrique, ALTHOEFER, Henning
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES 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 DYES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS 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 NATURAL RESINS NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ORGANIC CHEMISTRY PAINTS POLISHES
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Beschreibung
Zusammenfassung:	A process for preparing an anticorrosion component for antifreeze by oxidation of an oxydiol (I) in which x is 0 (zero) or a positive integer from 1 to 10 with molecular oxygen at a temperature of 20 to 100°C and a partial oxygen pressure of 0.01 to 2 MPa in the presence of water and a heterogeneous catalyst containing platinum to form an oxydicarboxylic acid (II) in which y is 0 (zero) or a positive integer from 1 to 10, in which the oxidation is conducted at a molar ratio of 0.002 ≤ n(Pt) / [n(oxydiol (l)) + n(oxydicarboxylic acid (ll))] ≤ 0.019 where "n(Pt)" is the molar amount of platinum, "n(oxydiol (I))" is the molar amount of oxydiol (I) and "n(oxydicarboxylic acid (II))" is the molar amount of oxydicarboxylic acid (II); at a water concentration of 50% to 95% by weight in the liquid phase; and (c) at a pH of 1 to 7.