Process for the removal of alloying impurities in a slag-covered

Details Process for the removal of alloying impurities in a slag-covered Process for the removal of alloying impurities in a slag-covered

1976-04-16

1977-10-25

Satterfield, Walter R.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 76, C22B 1500

Patent

active

040554155

ABSTRACT:
A relatively simple and rapid process for the production of high-grade copper from an inexpensive starting material such as blister copper or copper scraps is described. The starting material is conventionally smelted and oxidized, after which the charge is subjected to a slagging operation to obtain a pre-refined copper bath. After the slagging step, an artificial slag cover is formed on the pre-refined copper bath using a mixture of (1) an oxide of at least one element selected from the group consisting of silicon, phosphorous and boron, and (2) an oxide of at least one element selected from the group consisting of titanium, aluminum, calcium, strontium, barium, magnesium, sodium, potassium and lithium. At least two of such elements are then fed to the bath through the slag cover as alloying components. After such resulting bath is mixed for at least 30 seconds and is left standing for an additional 15 minutes, the slag cover is removed. A conventional reduction step may then be accomplished to complete the refining process.

REFERENCES:
patent: 1945074 (1934-01-01), Ralston et al.
patent: 3262773 (1966-07-01), Fritze
patent: 3528803 (1970-09-01), Ichikawa et al.
patent: 3561952 (1971-02-01), Greenberg
patent: 3682623 (1972-08-01), Dierckx et al.

Affiliated with

Also associated with

Rating

Process for the removal of alloying impurities in a slag-covered does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the removal of alloying impurities in a slag-covered, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the removal of alloying impurities in a slag-covered will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-120802