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:
Nov. 08, 1988
Filed:
Dec. 14, 1987
Applicant:
Inventors:
Joseph H Finley, Metuchen, NJ (US);
Richard E Hall, Trenton, NJ (US);
Assignee:
FMC Corporation, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423323 ;
Abstract
Phosphorus values in the raffinate from wet acid purification and nodule fines from an electric phosphorus furnace are recovered as elemental phosphorus by forming briquettes with a bed of the raffinate and nodule fines, curing the briquettes and feeding the cured briquettes plus the requisite coke and silica fluxing agent into an electric phosphorus furnace.