Classifying – separating – and assorting solids – Plural – diverse separating operations – Mercurial adhesion or suspension and stratifying
Patent
1977-02-03
1978-08-29
Lutter, Frank W.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Mercurial adhesion or suspension and stratifying
209198, 209444, 209506, B03B 574, C22B 1112
Patent
active
041102061
ABSTRACT:
Heavy metals such as mercury, gold, platinum, rhodium, osmium, silver, lead, palladium, etc., in the free state, are separated from their ore by applying water and the ore to a plurality of two to six rotating, inclined, spiral grooved wheels driven from a common shaft. The grooves are closely spaced and may have a declining pitch from the wheel at its periphery to its central annulus. The free metal tends to sink to the bottom of the grooves and the lighter ore is washed away as the metal moves along the spiral grooves to the annulus. The free metal and any remaining ore is fed from the annulus to the succeeding wheel and the process is repeated.
Mercury may be added to any of the wheels to facilitate separation of the metal from the ore. A separating wheel having a unique groove design is also disclosed.
REFERENCES:
patent: 386552 (1888-07-01), Morse
patent: 1018448 (1912-02-01), Scott
patent: 1986778 (1935-01-01), Hinkley
patent: 2064554 (1936-12-01), Mahoney et al.
patent: 2155587 (1939-04-01), Fairbank
patent: 2618388 (1952-11-01), Rawlings
patent: 4008152 (1977-02-01), Kleven
Hill Ralph J.
Krawitz Willie
Lutter Frank W.
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