Method for separating mixture of finely divided minerals
Patent 5603411 Issued on February 18, 1997. Estimated Expiration Date: 
February 5, 2016. 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.
February 5, 2016. 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 2990958 3138550 3371988 3701417 3837482 3862027 Selective rheological separation of clays Froth flotation apparatus and process Polymeric flocculants Method of beneficiating kaolin clay utilizing ammonium salts InventorsAssigneeApplicationNo. 596850 filed on 02/05/1996US Classes:209/5, Deflocculation and flocculation106/488, Bleaching treatment or product209/10TREATMENT SUBSEQUENTExaminersPrimary: Milef, BorisAttorney, Agent or FirmForeign Patent References
International ClassB03B 001/04AbstractA selective flocculation process that uses a mixture of dispersants including soda ash to disperse a slimed ore pulp prior to conditioning with a fatty acid, salt and then a polymeric flocculating agent.Other References
Field of SearchDeflocculation and flocculationTREATMENT SUBSEQUENT Gravity liquid Suspension Water or aqueous solution Clay pretreatment Chemical pretreatment Using alkaline compound treating agent Using organic substance as treating agent Clay containing or derived therefrom Iron, tungsten, molybdenum, or cerium compound containing (Fe, W, Mo, Ce) Aluminum compound or silicon containing Silicon containing Clay or material derived from clay containing, e.g., bentonite, montmorillonite, etc. Clay or material derived therefrom containing Bleaching treatment or product | |
