The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2001
Filed:
Feb. 14, 2000
Applicant:
Inventors:
Xiaodi Huang, Houghton, MI (US);
Jiann-Yang Hwang, Chassell, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 1/14 ; C22B 9/022 ;
U.S. Cl.
CPC ...
C22B 1/14 ; C22B 9/022 ;
Abstract
A method for the direct preparation of metal from metal containing ore by applying microwaves, alone or in combination with other heating means, to extract metal from masses made by forming a powder of ore and an optional reducing agent. The method minimizes the expenditure of energy used to refine the metal, the level of contamination introduced into the metal, and the production of environmental pollutants.