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EP0359041A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Oxide-coated carrier, its manufacturing process and its use

Assignee: BASF SE
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Filing: 1989-08-31
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Granted: —
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Expires: 2009-08-31
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Abstract

Abstract Translated from German Die neuen Carrier bestehen aus Stahlkernen, die einen eisenoxidhaltigen Belag der Formel (FeO)x · Fe2O3 mit x = 0, 1 - 1 aufweisen. Die Carrier sind über lange Zykluszeiten (6 · 10<6> Drucke) stabil und wirksam. Die Carrier werden durch Behandeln von Stahlkernen (Stahlkugeln) mit definierten geringen Mengen Schwefelsäure definierter Konzentration, partieller Oxidation der behandelten Kerne und Trocknen bei 60-150°C bei <= 100 mbar erhalten. The new carriers consist of steel cores that have an iron oxide coating of the formula (FeO) xFe2O3 with x = 0, 1 - 1. The carriers are stable and effective over long cycle times (6 · 10 <6> prints). The carriers are obtained by treating steel cores (steel balls) with defined small amounts of sulfuric acid at a defined concentration, partial oxidation of the treated cores and drying at 60-150 ° C at <= 100 mbar.

Inventors

  • 👤 Erwin Dr. Czech
  • 👤 Werner Dr. Ostertag
  • 👤 Detlef Dr. Schulze-Hagenest
  • 👤 Franz-Ulrich Dr. Schmitt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 07:11
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/10; G03G9/107; G03G9/1075; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993

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