发明名称 |
Beneficiation of kieserite and langbeinite from a langbeinite ore |
摘要 |
Langbeinite and kieserite are beneficiated in a flotation process in which separation of ore particles is conducted in a froth flotation process with a magnesium chloride brine containing at least 20 moles MgCl2 per 1000 mols H2O. Said brine is maintained at a pH below about 3.5. The preferred flotation agent is a combination of a fatty acid amine (preferably tallow amine) and an organic acid, either oleic or sebacic acid, in an approximate ratio of 2 to 4 parts amine to 1 part oleic or sebacic acid, and preferably in an amine-oleic or amine-sebacic acid ratio of about 3:1. Flotation is preferably conducted in two stages wherein the sink product from the rougher flotation contains langbeinite above about 95% concentration which is relatively free of kieserite and the froth from the rougher flotation is passed to a second "cleaner" flotation step where the kieserite is further concentrated to above about 75% kieserite. The sink product from the cleaner flotation is recycled to the rougher flotation step for further processing with the pulp containing the incoming ore particles.
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申请公布号 |
US4045335(A) |
申请公布日期 |
1977.08.30 |
申请号 |
US19760665419 |
申请日期 |
1976.03.10 |
申请人 |
DUVAL CORPORATION |
发明人 |
ADAMS, BEN E.;GIDAK, JR., EDWARD J. |
分类号 |
B03D1/002;B03D1/004;(IPC1-7):B03D1/02 |
主分类号 |
B03D1/002 |
代理机构 |
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