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Class Information
Number: 423/122
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Group iiia metal or beryllium (al, ga, in, tl, or be) > Forming insoluble substance in liquid
Description: Processes wherein a liquid or slurry is treated to form a substance which is insoluble therein and comes out of solution, or wherein the composition of the liquid is changed so that one part of the mixture becomes insoluble therein, so the insoluble substance can be separated from the liquid and the materials which remain soluble in the liquid.

Sub-classes under this class:

Class Number Class Name Patents
423/124 Agitating during reaction 26
423/129 Carbonating 28
423/126 Halogenating 54
423/127 Hydroxylating or hydrating 202
423/125 Nitrating 9
423/123 Subjecting mixture to pressure, vacuum, or steam 46
423/128 Sulfating 64

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8628738 Bayer process for producing alumina trihydrate, said process comprising a step in which the supersaturated liquor is filtered at high temperature before decomposition Jan. 14, 2014
8597600 Processes for extracting aluminum from aluminous ores Dec. 3, 2013
8585991 Method for recovering indium, silver, gold and rare, precious and base metals from complex oxide and sulfide ores Nov. 19, 2013
8585992 Synergistic effect of surfactant combinations as dewatering aids for alumina trihydrate Nov. 19, 2013
8569565 Process for recycling spent pot linings (SPL) from primary aluminium production Oct. 29, 2013
8545776 Reducing aluminosilicate scale in the Bayer process Oct. 1, 2013
8524178 Doped aluminum oxides Sep. 3, 2013
8501010 Di- and mono-alkoxysilane functionalized polymers and their application in the Bayer process Aug. 6, 2013
8435316 Bonded abrasive articles and methods of forming May. 7, 2013
8298508 Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides Oct. 30, 2012
8282834 Di- and mono-alkoxysilane functionalized polymers and their application in the Bayer process Oct. 9, 2012
8282897 Process for recovering boehmite and y-AI2O3 from spent hydroprocessing catalysts Oct. 9, 2012
8268269 Manufacture of water chemistries Sep. 18, 2012
8268270 Coating solution for forming a light-absorbing layer of a chalcopyrite solar cell, method of producing a light-absorbing layer of a chalcopyrite solar cell, method of producing a chalcopyrite Sep. 18, 2012
8252266 Recovery of alumina trihydrate during the bayer process using scleroglucan Aug. 28, 2012
8216675 Methods for producing sintered particles from a slurry of an alumina-containing raw material Jul. 10, 2012
8038979 Metal oxide nano powder and manufacturing method of the same Oct. 18, 2011
8012337 Method for collection of valuable metal from ITO scrap Sep. 6, 2011
8012336 Method for collection of valuable metal from ITO scrap Sep. 6, 2011
7922996 Zeolite compositions and preparation and use thereof Apr. 12, 2011
7922995 Zeolite compositions and preparation and use thereof Apr. 12, 2011
7906097 Processes for treating aluminium dross residues Mar. 15, 2011
7901583 Treatment of aqueous suspensions Mar. 8, 2011
7897125 Silicon tetrafluoride byproduct separation process Mar. 1, 2011
7875188 Treatment of aqueous suspensions Jan. 25, 2011
7837959 Synergistic solvent extraction process Nov. 23, 2010
7824570 Flocculating agent method for the production and use thereof Nov. 2, 2010
7811357 Method for recovering rare metals in zinc leaching process Oct. 12, 2010
7807119 Bayer process for production of alumina trihydrate, the said improvement relating to separation of aluminate liquor and insoluble residues Oct. 5, 2010
7771681 Method for improved aluminum hydroxide production Aug. 10, 2010
7691348 Process for the removal of anionic impurities from caustic aluminate solutions Apr. 6, 2010
7651676 Processes for treating aluminium dross residues Jan. 26, 2010
7575687 Membranes and methods useful for caustic applications Aug. 18, 2009
7537741 Gold and silver recovery from polymetallic sulfides by treatment with halogens May. 26, 2009
7442356 Process for producing inorganic spheres Oct. 28, 2008
7288241 Black composite oxide particle and method for production thereof Oct. 30, 2007
7264729 Process for reducing contaminants in condensate resulting from the conversion of bauxite to alumina Sep. 4, 2007
7244404 Process for the removal of oxalate and/or sulphate from bayer liquors Jul. 17, 2007
7217408 Solubilisation of carbonates by recycling condensates during digestion of monohydrate bauxites under pressure May. 15, 2007
7211238 Mesoporous aluminum oxide, preparation and use thereof May. 1, 2007
7122168 Shape anisotropic metal oxide nanoparticles and synthetic method thereof Oct. 17, 2006
7115219 Method of producing Indium Tin Oxide powder Oct. 3, 2006
7049347 Method for making fine and ultrafine spherical particles of zirconium titanate and other mixed metal oxide systems May. 23, 2006
7022302 Process for preparing hydrotalcite and brucite type posite charged layers Apr. 4, 2006
7022305 Nanoscale corundum powders, sintered compacts produced from these powders and method for producing the same Apr. 4, 2006
6979405 Flocculation of mineral suspensions Dec. 27, 2005
6893482 Method for improving metals recovery using high temperature pressure leaching May. 17, 2005
6821440 Treatment of mineral materials Nov. 23, 2004
6811704 Method for anion removal by forming chemical precipitation under an electric field and continuous process for anion removal Nov. 2, 2004
6806295 Sol-gel processing with inorganic metal salt precursors Oct. 19, 2004

1 2 3 4 5

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