| Entries |
| Document | Title | Date |
|---|
| 20090194465 | METHOD FOR SORTING MIXED PLASTIC - A problem of the invention is to provide a method which targets on polyethylene terephthalate-made bottle scraps composed mainly of polyethylene and/or polypropylene, polystyrene and a polyester and which is able to treat continuously a large amount of the polyester component with a high purity and sort and recover it in a high recovery. The problem of the invention can be solved by a separation method of waste plastics, which is characterized by forming previously a crushed plastic into a water slurry, feeding the water slurry in a fixed rate range such that a swirling flow is generated within a cylindrical tank and that water rises in a fixed rate range and recovering a polyester with a high specific gravity as a precipitated component within the cylindrical tank and a plastic with a low specific gravity as an overflow component from the top of the cylindrical tank, respectively. | 08-06-2009 |
| 20090206010 | REVERSE FROTH FLOTATION OF CALCITE ORE - The invention relates to a reverse froth flotation process for treating a calcium carbonate ore containing silicates. The process comprises the use of two collectors selected from the group consisting of fatty tri-lower-alkyl quaternary ammonium compounds, fatty di-lower-alkyl benzyl quaternary ammonium compounds, fatty lower-alkyl di-benzyl quaternary ammonium compounds, di-fatty di-lower-alkyl quats, di-fatty lower-alkyl benzyl quats, and fatty bis-imidazoline quats. The use of a combination of different quats was found to result in a synergetic performance of the collectors. | 08-20-2009 |
| 20100181233 | Collector for flotation of clay minerals from potash ores - The invention relates to a flotation process for removal of slimes from potash ores wherein a collector is used selected from the group of ethoxylated fatty amines having the formulae (formula I) wherein R1 and R2 are, independently, a hydrocarbyl group having 1-22 C-atoms, and n is on average above 15 and less than 100, and (formula II) wherein R3 is a hydrocarbyl group having 8-22 carbon atoms; z is a number 1-3; X, Y and Y′ are, independently, an alkyl group with 1-4 carbon atoms or the group -(EO) | 07-22-2010 |
| 20110155651 | SEPARATION OF COPPER MINERALS FROM PYRITE USING AIR-METABISULFITE TREATMENT - Embodiments of the present invention are directed to flotation of sulfidic materials following aerating by an oxidizing gas and contacting by a sulfoxy reagent. | 06-30-2011 |
| 20130134074 | Recovering Valuable Mined Materials from Aqueous Wastes - Disclosed herein are systems and methods for recovering a target material from an aqueous stream. The target material can be a natively hydrophobic target material, such as a hydrocarbon material, such as coal. The target material can also have a surface modification that renders it hydrophobic. Systems for recovering the target material can comprise an extractant formulation comprising a light hydrocarbon solvent and a high molecular weight hydrophobic polymer, wherein the extractant formulation is mixable with the aqueous stream in a mixer to form an admixed solution having a hydrophobic portion and an aqueous portion, with the target material partitioning to the hydrophobic portion; a separator for isolating the hydrophobic portion from the aqueous portion; and a collector to which the hydrophobic portion is directed, wherein the target material is recovered from the hydrophobic portion. | 05-30-2013 |
| 20130153471 | DEVICE FOR SEPARATING PARTICLES OF DIFFERENT SYNTHETIC MATERIALS - An apparatus for separating synthetic materials having different characteristics includes a rotating drum having a cylindrical shape with a tapered end and an opposite flat bottom wall; a device configured to introduce a mixture of at least two synthetic materials in particle form and a liquid having an intermediate specific weight relative to specific weights of the two products into the drum; a radial discharge opening in the tapered end of the drum; an axial slithering discharge opening located in the bottom surface of the drum, at a distance from the drum axis, a rotor located inside the drum having a first external helical blade with the same external shape as the drum, a device configured to set the rotor in rotation relative to the drum. The blade is located at a distance from the rotor axis greater than the distance between the drum axis and the axial discharge opening. | 06-20-2013 |
| 20130220894 | Flotation Apparatus and Flotation Method - A flotation apparatus may include a flotation chamber having a side wall and a base, a stirrer, a sparging device associated with the stirrer, a first foam-collecting device arranged in an upper region of the flotation chamber for the purpose of collecting a foam product formed during the flotation process, and a charge line for charging the flotation chamber with pulp, wherein the charge line leads into the flotation chamber at a point above the stirrer and an ejector is present in the charge line. Further, a flotation method is performed in two stages inside a flotation chamber of a flotation apparatus, wherein an ejector is used in a first flotation stage and a stirrer is used in a second flotation stage. | 08-29-2013 |
| 20130277279 | Blends of Polypropylene Polyglycol and Phenolic Glycol Ethers and Method of Foam Control Using Such Blend - A blend comprising from 1 to 99 weight percent one or more polypropylene glycols wherein each polypropylene glycol has a weight average molecular weight of greater than or equal to 1000 grams/mole and from 1 to 99 weight percent one or more dipropylene glycol phenyl ethers and/or diethylene glycol phenyl ethers wherein the blend has a viscosity (ASTM D445, @ 25° C.) of less than or equal to 400 cSt and viscosity (ASTM D445, @ 40° C. of less than or equal to 200 cSt, is provided. Processes using the blend in mining applications are also provided. | 10-24-2013 |
| 20130292305 | FILMS CONTAINING FOAMABLE INKS OR COATINGS AND PROCESS FOR SEPARATING SIMILAR DENSITY MATERIALS - The present invention is directed to films that are deposited with foamable inks or coatings. One purpose is to facilitate their separation for recycling purposes. The films are particularly useful as packaging labels. The inks/coatings are designed so that foaming is activated when the film is in the hot-wash stage of a typical recycle process. This provides added buoyancy to the film allowing it to float to the surface and be removed, thereby significantly improving the efficiency of the recycle process. A feature of the invention is that, prior to this hot wash, the inks/coatings remain substantially unfoamed and thereby do not negatively affect the aesthetics of labeled package. The foamable inks/coatings can be used with any type of film. | 11-07-2013 |
| 20150068956 | METHOD AND APPARATUS FOR SEPARATION OF MOLYBDENITE FROM PYRITE CONTAINING COPPER-MOLYBDENUM ORES - A method and an apparatus for the separation of the mineral components of a pyrite containing copper-molybdenum ore by flotation. The method comprises grinding the ore in the presence of soda ash in an open circuit to produce an aqueous ore slurry; subjecting the slurry to a collective flash flotation step ( | 03-12-2015 |
| 20160074872 | METHOD FOR PROCESSING MINERAL MATERIAL CONTAINING ACID-CONSUMING CARBONATE AND PRECIOUS METAL IN SULFIDE MINERALS - Processing of mineral material containing precious metal with one or more sulfide minerals and non-sulfide gangue minerals including acid-consuming carbonate may include preparation of a sulfide concentrate by flotation with the flotation or conditioning prior to flotation using a gas comprising carbon dioxide. Flotation may be at an acidic pH without prior decomposition of the acid-consuming carbonate and may be without addition of acid for pH adjustment. | 03-17-2016 |
| 20160121339 | Systems and Methods for Extracting Particulate from Raw Slurry Material - A separation system for separating solids from a slurry of waste material, the separation system comprising a housing, a drum assembly, and a drive assembly. The housing defines a collection chamber. Liquid within the collection chamber defines a liquid level. The drum assembly defines a perforated cylindrical wall and the drum assembly is supported such that at least a portion of the drum assembly is below the liquid level. The drive assembly rotates the drum assembly relative to the housing. | 05-05-2016 |
