With Treating Of Solid Material Patents (Class 34/333)
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Patent number: 10189970Abstract: A granulation method that can be used to obtain a polymer from “post-consumer” materials, and a motor vehicle part made from polymers produced by recycling used polymers.Type: GrantFiled: October 23, 2013Date of Patent: January 29, 2019Assignees: COMPAGNIE PLASTIC OMNIUM, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, UNIVERSITE CLAUDE BERNARD LYON 1, UNIVERSITE JEAN MONNET SAINT ETIENNE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Frederic Viot, Philippe Cassagnau, Valérie Massardier-Nageotte, Flavien Melis
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Patent number: 9273901Abstract: An apparatus (20) for dehydrating organic material in batches has a processing unit (22) having a microwave-vacuum chamber (34), an input module (28) and an output module (30), with a conveyor (54) for moving the material through the chamber on a microwave-transparent window. A material reservoir (68) is arranged to receive the material exiting the output module. A conveyor (78) external to the vacuum chamber conveys material that exits the reservoir to the input module. The vacuum chamber (34), reservoir (68) and external conveyor (78) are in fluid communication to operate at a common, reduced pressure. The organic material passes through the vacuum chamber multiple times to equilibrate and dry to the desired degree.Type: GrantFiled: July 12, 2012Date of Patent: March 1, 2016Assignee: EnWave CorporationInventors: Jun Fu, Timothy D. Durance, Parastoo Yaghmaee
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Patent number: 8302325Abstract: The present disclosure provides methods, compositions and systems for drying coal fines.Type: GrantFiled: March 8, 2012Date of Patent: November 6, 2012Assignee: Ross Technology CorporationInventors: Philip Harsh, Michael Hurley, Andrew K. Jones, Vinod K. Sikka
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Publication number: 20110252662Abstract: The present invention provides a method and system for drying mineral slurry concentrate and high moisture content minerals using activated alumina. The method and system dries the mineral slurry concentrate by combining the slurry with the activated alumina. While in combination, the mixture is agitated to maximize surface contact between the activated alumina and the slurry. As the mineral slurry concentrate contacts the activated alumina, the surfactant moisture on the mineral elements is then absorbed by the activated alumina. The activated alumina allow for the water molecules to be adsorbed by the activate alumina, thus being removed from the slurry elements. After a period of agitation, the method and system thereby separates the activated alumina from the mineral slurry concentrate.Type: ApplicationFiled: June 24, 2011Publication date: October 20, 2011Inventors: Richard W. Bland, Bruce McDaniel
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Publication number: 20110247233Abstract: The present invention provides a method and system for drying coal using activated alumina. The method and system dries the coal by combining coal with the activated alumina. While in combination, the mixture is agitated to maximize surface contact between the activated alumina and the coal. As the coal contact the activated alumina, the surfactant moisture on the coal is then absorbed by the activated alumina. The activated alumina allow for the water molecules to pass into the sieves, thus being removed from the coal. After a period of agitation, the method and system thereby separates the activated alumina and the coal.Type: ApplicationFiled: June 24, 2011Publication date: October 13, 2011Inventors: Richard W. Bland, Bruce McDaniel
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Patent number: 7574816Abstract: A drier apparatus for removing water or other liquids from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with the incoming material to be dried. In a closed loop embodiment of the apparatus, the fluid is also recycled from the regenerator to the chamber and a chiller is utilized to reduce the temperature of the fluid to a preselected temperature and dew point temperature.Type: GrantFiled: July 27, 2007Date of Patent: August 18, 2009Inventor: Steve D. Shivvers
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Publication number: 20080022547Abstract: A drier apparatus for removing water or other liquids from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with the incoming material to be dried. In a closed loop embodiment of the apparatus, the fluid is also recycled from the regenerator to the chamber and a chiller is utilized to reduce the temperature of the fluid to a preselected temperature and dew point temperature.Type: ApplicationFiled: July 27, 2007Publication date: January 31, 2008Applicant: Shivvers Group, Inc.Inventor: Steve D. Shivvers
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Patent number: 6986213Abstract: A method for drying a granular solid, the finely divided solid to be dried being mixed with zeolite granules, after which drying takes place by removal of water from the solid. The solid dried by removal of moisture is then separated from the zeolite. According to the invention, the solid to be dried is dried in a mixer without external supply of heat, after which the dried solid is at least virtually completely separated from the zeolite granules after a residence time in the mixer. This is advantageous in particular when drying foods, such as wheat flour.Type: GrantFiled: May 23, 2001Date of Patent: January 17, 2006Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNOInventors: Arjen Johannes Kruithof, Pieter Jan W. Blom, Paulus Statius R. Kosters, Paulus Josephus T. Bussmann
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Patent number: 6601315Abstract: A combined fluidized bed dryer and absorption bed allows an absorbant to be dried to remove any moisture therefrom immediately followed by treating a product material with the dried absorbant, all in the same vessel, such that the absorbant is at its optimum dryness prior to treating the product material therewith The invention has particular application in the ophthalmic lens production where the absorbant is alumina and is used to remove methacrylic acid from liquid monomer prior to using the monomer in producing lenses.Type: GrantFiled: December 14, 2000Date of Patent: August 5, 2003Assignee: Bausch & Lomb IncorporatedInventor: Ulick Stafford
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Patent number: 6085440Abstract: A process and an apparatus for drying of a material in the form of a paste or a filter cake in a spin flash dryer. Particles are separated by a classifier (6) in the chamber (1) in such a way that oversize fraction is withheld in the chamber (1) and the desired fraction is removed (3, 9). A possible undesired undersize fraction is strained off and recycled (4, 10, 11) externally back to the dryer chamber (1). The spent drying gas is recycled to the dryer chamber (1). In either, the energy in the spent drying gas may be made use of in a heat exchanger and there is no or only little emission to the environment. Products preferably dried according to the invention are fruit and beet pulps, destillers residues, pesticides, pigments, dyes, ceramics, active coal, sludge and zeolites.Type: GrantFiled: July 15, 1998Date of Patent: July 11, 2000Assignee: APV Anhydro ASInventor: Jens Getler
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Patent number: 5733841Abstract: Solid gas-drying forms are made by heating drying salts with a polar solvent to form a saturated solution, then cooling, freezing and forming. Preferred salts are combinations of calcium and lithium bromides and chlorides in particularly effective molar ratios.Type: GrantFiled: December 18, 1996Date of Patent: March 31, 1998Assignee: Clearwater, Inc.Inventor: Todd R. Thomas