Patent · US Active

Process and plant for producing metal oxide from metal compounds

US8048380B2 · kind B2 · utility

0Cited by

73References

18Claims

0Family size

Assignee

Outotec Oyj · FI

Inventors

Martin Hirsch · Friedrichsdorf, DE
Werner Stockhausen · Bad Vilbel, DE
Michael Stroeder · Frankfurt am Main, DE

Key dates

Filing date	Jul 10, 2009
Grant date	Nov 1, 2011
Priority date	—
Expiry date	Dec 18, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/129
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A plant for producing metal oxide from metal compounds includes a fluidized-bed reactor in which the metal compounds are heated by a combustion of a fuel to produce metal oxide. The fluidized-bed-reactor reactor includes at least one gas supply tube at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is disposed, and a mixing chamber disposed above an orifice region of the gas supply tube. A gas flowing through the gas supply tube entrains solids from the stationary annular fluidized bed when passing through the orifice region.

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