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AssigneeBASF SE
InventorsStephan Hüffer, Thilo Krebs, Wolfgang Loth, Bernd Rumpf, Jürgen Sturm, Bernd Diebold, Juergen Korkhaus, Joachim Nilges, Axel Franke
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The present invention relates to a process for coating apparatuses and apparatus parts for chemical plant construction—which are taken to mean, for example, apparatus, tank and reactor walls, discharge devices, valves, pumps, filters, compressors, centrifuges, columns, dryers, comminution machines, internals, packing elements and mixing elements—wherein a metal layer or a metal/polymer dispersion layer is deposited in an electroless manner on the apparatus(es) or apparatus part(s) to be coated by bringing the parts into contact with a metal electrolyte solution which, in addition to the metal electrolyte, comprises a reducing agent and optionally the polymer or polymer mixture to be deposited in dispersed form, where at least one polymer is halogenated.
A process for coating apparatuses and apparatus parts for chemical plant construction, which comprises a metal layer and thereafter a metal/polymer dispersion layer being deposited in an electroless manner on the apparatus(es) or apparatus part(s) to be coated by firstly depositing a metal/phosphorus layer having a thickness of from 1 to 15 μm in an electroless manner on the apparatus(es) or apparatus parts and then bringing the apparatus(es) or apparatus part(s) into contact with a metal electrolyte solution which, in addition to the metal electrolyte, comprises a reducing agent and the polymer or polymer mixture to be deposited in dispersed form, wherein at least one polymer is halogenated and comprises spherical particles having a mean diameter of from 0.1 to 1.0 μm.
Dependencies are inferred from the claim text.