Finely divided phosphorus-containing iron

US6036742A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernd Leutner · Bischofswerda, DE
• Gabriele Friedrich · Ludwigshafen, DE
• Reinhold Schlegel · Haßloch, DE

Key dates

• Filing date: Feb 12, 1998
• Grant date: Mar 14, 2000
• Expiry date: Feb 12, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C33/0214
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Finely divided phosphorus-containing iron is prepared by reacting iron pentacarbonyl with a volatile phosphorus compound, in particular PH.sub.3, in the gas phase. The resulting phosphorus-containing iron powders and iron whiskers have a particularly low content of extraneous elements.