Method for coating apparatuses and parts of apparatuses used in chemical manufacturing

US6617047B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Stephan Huffer · Birkenfeld, DE
• Thilo Krebs · Mannheim, DE
• Wolfgang Loth · Bad Dürkheim, DE
• Bernd Rumpf · Hockenheim, DE
• Jürgen Sturm · Speyer, DE
• Bernd Diebold · Wemding, DE
• Juergen Korkhaus · Monsheim, DE
• Joachim Nilges · Ludwigshafen, DE
• Axel Franke · Tauberbischofsheim, DE

Key dates

• Filing date: Jun 26, 2001
• Grant date: Sep 9, 2003
• Expiry date: Jun 26, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31678
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

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.