Process for regenerating used foundry sand having high oolitic l

Details Process for regenerating used foundry sand having high oolitic l Process for regenerating used foundry sand having high oolitic l

1994-11-30

1996-06-18

Terrell, William E.

Classifying, separating, and assorting solids

With heat treatment

209214, 241 2414, 241DIG10, 164 5, B07B 1500, B02C 1912

Patent

active

055269370

ABSTRACT:
A process for regenerating used foundry sand having high oolitic level and, more particularly, a process as aforesaid wherein the used foundry sand is subjected to magnetic separation by one or more high power magnets for dividing the used foundry sand into a first highly magnetic stream containing a high degree of oolite particles and a second less magnetic stream having a relatively high degree of sand particles.

REFERENCES:
patent: 3312403 (1967-04-01), Zifferer
patent: 3764078 (1973-10-01), Richard
patent: 4491277 (1985-01-01), Bauer et al.
patent: 4671867 (1987-06-01), Battie et al.
patent: 4700766 (1987-10-01), Godderidge
patent: 5279741 (1994-01-01), Schott

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