Process for the simultaneous classification and regulated, continuous discharge of particulate material from fluidized bed reactors

US4946653A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gerhard Stopp · Leverkusen, DE
• Karl Kreutzer · Leverkusen, DE
• Horst Karkossa · Leichlingen, DE
• Karl Mannes · Leverkusen, DE
• Hans-Joachim Laakmann · Leichlingen, DE
• Viktor Trescher · Leverkusen, DE

Key dates

• Filing date: Feb 1, 1983
• Grant date: Aug 7, 1990
• Expiry date: Feb 1, 2003

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B3/08
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Particulate material is discharged continuously from fluidized bed reactors by passing the material emerging at the lowest point of the fluidized bed through a zone which is narrower than the fluidized bed and in which a gas stream flows counter-current to the material, the pressure of the gas stream being above the pressure of the fluidized zone.