Method of flocculating low metal oxide content solids in a liquid
September 2, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3345344 3864323 Process for settling red mud in the digestion of bauxite Impeding sedimentation of clays in water Method for hindering the scaling by waters Drilling and completion muds useful at elevated temperatures Flocculants for bauxite (red mud) Preparation of polymers of hydroxamic functions Flocculation of high solids mineral slurries Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams InventorsAssigneeApplicationNo. 127201 filed on 09/02/1993US Classes:210/734, Nitrogen containing (e.g., amine, azo, etc.)210/735Nitrogen containing (e.g., amine, azo, etc.)ExaminersPrimary: McCarthy, NeilAttorney, Agent or FirmInternational ClassC02F 001/56AbstractA process for flocculating, in a liquid other than Bayer process streams, suspended solids comprised primarily of minerals other than iron oxide and tin oxide. The solids are contacted with a hydroxamated polymer. The amount of hydroxamated polymer is sufficient to increase the settling rate of the solids and to decrease the turbidity of the solids.Other References
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