Process for separation of bastnaesite from weathered...

Details Process for separation of bastnaesite from weathered... Process for separation of bastnaesite from weathered...

2005-04-05

2005-04-05

Lithgow, Thomas M. (Department: 1724)

Classifying, separating, and assorting solids

Fluid suspension

Liquid

C209S167000

Reexamination Certificate

active

06874640

ABSTRACT:
The present invention provides a process for the recovery of bastnaesite and other minerals containing rate earth oxide from complex, weathered ores containing barite, borite, fluorites and/or barite, fluorites, silicates and iron oxides, and comprises reverse barite flotation using a barite collector containing the following individual reagents:1. Petroleum sulphonate30-40% by weight2. Sulphosuccinate30-40% by weight3. Sulphosuccinamate30-40% by weight

REFERENCES:
patent: 4853113 (1989-08-01), Bulatovic
patent: 55-119456 (1980-09-01), None

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