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Class Information
Number: 34/372
Name: Drying and gas or vapor contact with solids > Process > With fluid current conveying or suspension of treated material > Spray drying and cooling of slurry or suspension
Description: Process wherein a mixture of particles dispersed in a liquid is directed through a nozzle to atomize the suspension or slurry for promoting intimate contact with drying gas or vapor stream that in addition to drying the suspension or slurry reduces the temperature of the suspension or slurry.










Sub-classes under this class:

Class Number Class Name Patents
34/373 With contact with additional gas or vapor flow 27


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8569430 Method of spray drying phenol-formaldehyde resin Oct. 29, 2013
8343550 Method for making homogeneous spray-dried solid amorphous drug dispersions utilizing modified spray-drying apparatus Jan. 1, 2013
8176655 Vapor atmosphere spray dryer May. 15, 2012
7988074 Nozzle apparatus for material dispersion in a dryer and methods for drying materials Aug. 2, 2011
7846372 Method of making a vegetable oil-based candle Dec. 7, 2010
7814679 Method of fabricating abrasive having sliding and grinding effects Oct. 19, 2010
7531131 Method and vibrating device for conditioning, air-conditioning, cooling and decontaminating, disinfecting and sterilization physical media May. 12, 2009
7523563 Process for preparing certain hydrohalide metal complex compounds having a specific coarse structure Apr. 28, 2009
7469488 Control of process humidity to produce large, porous particles Dec. 30, 2008
7181862 Sol-gel process for the production of glassy articles Feb. 27, 2007
7144931 Method of manufacturing polymer particles Dec. 5, 2006
7118764 Process for cooking/drying high-amylose starches Oct. 10, 2006
6973741 Method for making homogeneous spray-dried solid amorphous drug dispersions utilizing modified spray-drying apparatus Dec. 13, 2005
6870071 Processes for preparing alkali metal alkoxide granules and alkaline earth metal alkoxide granules Mar. 22, 2005
6848197 Control of process humidity to produce large, porous particles Feb. 1, 2005
6845571 Spray-drying installation and a method for using the same Jan. 25, 2005
6829843 Process for preparing vinylpyrrolidone polymer powder Dec. 14, 2004
6769200 Device for spray-drying solvent-containing compositions Aug. 3, 2004
6763607 Method for making homogeneous spray-dried solid amorphous drug dispersions utilizing modified spray-drying apparatus Jul. 20, 2004
6754979 Device for drying and thermally treating granulates with an inert gas stream Jun. 29, 2004
6712215 Method and apparatus for recovery of lost diluent in oil sands extraction tailings Mar. 30, 2004
6711831 Process and an apparatus for spray drying Mar. 30, 2004
6649267 Thermosetting powder coating composition, method of preparation thereof and coated article therewith Nov. 18, 2003
6560897 Spray drying apparatus and methods of use May. 13, 2003
6463675 Process and a plant for spray drying Oct. 15, 2002
6328099 Moving bed dryer Dec. 11, 2001
6308434 Spray drying method Oct. 30, 2001
6237247 Apparatus and method for a spray dryer May. 29, 2001
6023855 Air-assisted wiping device Feb. 15, 2000
5996247 Extraction and drying method Dec. 7, 1999
5849862 Processes of spray drying polymer-containing dispersions, water-in-oil emulsions and water-in-oil microemulsions Dec. 15, 1998
5700471 Production of fine particle dye or drug preparations Dec. 23, 1997
5695614 Method for processing waste liquids in particular industrial waste water having a high solids content Dec. 9, 1997
5685089 Process and apparatus for production of ceramic powders by spray drying Nov. 11, 1997
5636451 Process for feeding sludge into a reactor for thermal disposal Jun. 10, 1997
5632102 Process and apparatus for the production and/or treatment of particles May. 27, 1997
5632100 Process and a spray drying apparatus for producing an agglomerated powder May. 27, 1997
5556274 Drying apparatus and method for pumpable materials Sep. 17, 1996
5544427 Process for the production of granules suitable as wetting agents, detergents and/or cleaning products Aug. 13, 1996
5537759 Process for drying useful materials for detergents and cleaning products using superheated steam Jul. 23, 1996
5535920 Adhesive curing abatement system Jul. 16, 1996
5519948 Process for the production of granules suitable as wetting agents, detergents and/or cleaning products May. 28, 1996
5435822 Spray dried water dispersible fertilizer Jul. 25, 1995
5223088 Apparatus for producing concentrated aqueous slurries and spray dried particulate products Jun. 29, 1993
5100509 Process and spray drying apparatus for producing stable particle agglomerates Mar. 31, 1992
5015332 Spray dryer May. 14, 1991
4657767 Spray drying apparatus and method Apr. 14, 1987
4575948 Pneumatic transport and heat exchange systems Mar. 18, 1986
4209912 Process and apparatus for the drying of resinous materials Jul. 1, 1980
4183145 Method of spray-drying liquid and pastelike materials and installation for carrying same into effect Jan. 15, 1980

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