Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1980-05-05
1982-03-16
Hill, Ralph J.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
106DIG1, 252 60, 241 24, 209 39, 209214, 209216, B02C 2314
Patent
active
043199887
ABSTRACT:
A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.
REFERENCES:
patent: 1512870 (1924-10-01), Ullrich et al.
patent: 3021282 (1962-02-01), Joppa
patent: 3672579 (1972-06-01), Lawver
patent: 3769054 (1973-10-01), Pennachetti et al.
patent: 4191336 (1980-03-01), Brown
Halomet, Incorporated
Hemingway Alfred H.
Hill Ralph J.
Lewen Bert J.
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