Electron beam refinement of metals, particularly copper

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4518418
SERIAL NO

06503376

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

It has been discovered that suprisingly effective removal of impurities from copper can be achieved using electron beam distillation, especially with respect to relatively low amounts of impurities such as Ag, Se, Te, S, Bi and Pb. Certain pretreatments of unrefined metal prior to electron beam irradiation significantly improve overall results. These include iron and/or oxygen removal treatments. In a particularly advantageous embodiment, these impurity removal treatments and combinations thereof are achieved in conjunction with a new method of electron beam distillation of metals which involves a horizontal multistage system with recycle of the condensed vapor phases.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MARTIN-DECKER TOTCO INCNot Provided

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fletcher, Archibald W Tucson, AZ 4 28
Hunt, Charles d'A Occidental, CA 4 17

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation