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:
Apr. 07, 1998
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Wayne C Hazen, Denver, CO (US);
Roland Schmidt, Lakewood, CO (US);
Dale Lee Denham, Jr, Louisville, CO (US);
Assignee:
Environmental Projects, Inc., Casper, WY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D / ; C22B / ; B03C / ;
U.S. Cl.
CPC ...
4232062 ; 2091272 ;
Abstract
Disclosed is a method for beneficiating trona from a feedstream containing trona and impurities by a dry separation method, namely, electrostatically separating a first portion of impurities from the trona at a temperature between about 25.degree. C. and about 45.degree. C. The disclosed beneficiation of trona method may also include separation of impurities from trona by other dry separation methods, such as density separation, magnetic separation and size separation, and/or by wet separation methods.