Patent · US Expired

Spouted bed apparatus for contacting objects with a fluid

US6936142B2 · kind B2 · utility

6Cited by
37References
38Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 20, 2002
Grant dateAug 30, 2005
Priority date
Expiry dateJan 31, 2024

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC25D17/16
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A vessel for contacting a plurality of objects with a fluid. An upwardly directed stream of fluid and a portion of the objects are confined in a conduit such that the fluid stream causes the objects to flow upward from a moving bed thereof to a disengaging position from where they fall onto a distribution shield and move downward to a feed position. The vessel may be used for treating electrically conductive objects wherein the fluid is an electrolyte, an electrode is positioned to contact the moving bed, and a counterelectrode is positioned in spaced relation to the moving bed. The vessel may be fixed or portable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.