Young Ji Lee
Nursing in Pittsburgh, PA
License number
Pennsylvania RN669057
Category
Nursing
Type
Registered Nurse
Address
Address
Pittsburgh, PA 15206
Personal information
See more information about Young Ji Lee at radaris.comName
Address
Phone
439 Baeder Rd, Jenkintown, PA 19046
44 Country Lane Dr, Philadelphia, PA 19115
Professional information
See more information about Young Ji Lee at trustoria.com
Ferrophosphorus Refining Process
Ferrophosphorus Refining Process
US Patent:
5362440, Nov 8, 1994
Filed:
Mar 15, 1993
Appl. No.:
8/031679
Inventors:
Deepak Madan - Mars PA
Young Lee - Pittsburgh PA
Alan FitzGibbon - Wexford PA
Roland Gamroth - Bradfordwoods PA
Young Lee - Pittsburgh PA
Alan FitzGibbon - Wexford PA
Roland Gamroth - Bradfordwoods PA
Assignee:
Elkem Metals Company - Pittsburgh PA
International Classification:
C22C 3304
US Classification:
420 88
Abstract:
The ferrophosphorus refining method entails forming a ferrophosphorus melt and adding an oxidizing agent to the melt to oxidize the impurities in the melt. The oxidized impurities then rise to the top of the melt and either go into the slag or escape in a gaseous forte. The slag is removed and a refined ferrophosphorus is recovered. Suitable oxidizing agents include solids such as ferrous oxide (Fe. sub. 2 O. sub. 3), ferric oxide (Fe. sub. 3 O. sub. 4), ferrous-ferric oxide (FeO), mill scale, limestone, dolomitic limestone, lime and any alkalide carbonate; and gaseous oxidizing agents such as oxygen, air and mixtures thereof.