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Class Information
Number: 423/155
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Alkaline earth metal (mg, ca, sr, or ba)
Description: Processes wherein the compound comprises one of the metals belonging to the group known as the alkaline earth metals, i.e., magnesium, calcium, strontium or barium, or the Group 11A metals of the periodic system except for beryllium and radium.










Sub-classes under this class:

Class Number Class Name Patents
423/158 Forming insoluble substance in liquid 152
423/157 Ion exchanging or liquid-liquid extracting 113
423/156 Magnetic separating 9
423/168 Mixing fuel with starting mixture 18
423/178 Mixture contains halogen or sulfur 56
423/157.2 Phosphate rock or ore 52
423/157.5 Phosphorous or phosphorous compound containing waste as feed 17
423/169 Separating magnesium and calcium from each other (e.g., treating dolomite, etc.) 17
423/167.1 Treating asbestos 36
423/173 Treating impure carbonate (e.g., oyster shells, etc.) 38
423/170 Treating impure sulfate (e.g., barite, etc.) 49


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8703093 Method for batchwise slaking of burnt lime in a slaker Apr. 22, 2014
8673247 Method for operating a regenerative shaft furnace for producing lime Mar. 18, 2014
8628735 Process for recovering metals from coal liquefaction residue containing spent catalysts Jan. 14, 2014
8623302 Barium containing granules for sorption applications Jan. 7, 2014
8609055 Method of producing fluoroapatite, fluoroapatite, and adsorption apparatus Dec. 17, 2013
8540951 Process for extracting metals from aluminoferrous titanoferrous ores and residues Sep. 24, 2013
8512654 Strontium cerate nanoparticle synthesis method Aug. 20, 2013
8470272 Magnesium recycling and sulphur recovery in leaching of lateritic nickel ores Jun. 25, 2013
8470290 Methods and apparatus for industrial waste recovery Jun. 25, 2013
8454912 Adsorbent, preparation method thereof and Sr-90/Y-90 generator using the same Jun. 4, 2013
8454915 Selective leach recovery of minerals from composite ores Jun. 4, 2013
8362869 Stable thermistor based on a composition comprising rare earth metal Jan. 29, 2013
8349281 Process for sequestrating carbon in the form of a mineral in which the carbon has oxidation number +3 Jan. 8, 2013
8282898 Process for the formulation of potassium chloride from a carnallite source Oct. 9, 2012
8178477 Proppants with carbide and/or nitride phases May. 15, 2012
8173086 Process of recovery of base metals from oxide ores May. 8, 2012
8163828 Additive for polymers and process for preparation thereof Apr. 24, 2012
8158089 Compositions and methods for wastewater treatment Apr. 17, 2012
8153088 Method to prevent build-up of limestone in a lime slaker that is used for batchwise slaking of burnt lime Apr. 10, 2012
8142752 Method of preparation of talcum product with high purity degree Mar. 27, 2012
8137844 Cathode active material for lithium rechargeable battery, manufacturing method thereof and lithium rechargeable battery Mar. 20, 2012
8029817 Silicon substituted oxyapatite Oct. 4, 2011
8029702 Low solar absorptance, high emissivity, inorganic electrostatic dissipative thermal control coating Oct. 4, 2011
7985390 Silica-intercalated hydrotalcite, and use thereof as filler in polymer compositions Jul. 26, 2011
7927566 Extraction of radionuclides by crown ether-containing extractants Apr. 19, 2011
7883681 Synthetic carbide lime filler composition and method of making Feb. 8, 2011
7857680 Method for producing glass substrate for magnetic disk, and magnetic disk Dec. 28, 2010
7811535 Process for the preparation of magnesia (MGO) Oct. 12, 2010
7763221 Process for complete utilisation of olivine constituents Jul. 27, 2010
7753987 High vacuum in-situ refining method for high-purity materials and an apparatus thereof Jul. 13, 2010
7740814 Composite materials and method of its manufacture Jun. 22, 2010
7731921 Process for sequestration of carbon dioxide Jun. 8, 2010
7727497 Method for producing particles, particles, and sintered body Jun. 1, 2010
7722841 Polymeric chelant and coagulant to treat metal-containing wastewater May. 25, 2010
7695699 Metal sulfate alcohol composition and process therewith Apr. 13, 2010
7668578 MgB.sub.2 superconductors Feb. 23, 2010
7662475 Alkaline-earth metal carbonate core coated with at least one group IV transition metal compound and method of making thereof Feb. 16, 2010
7648687 Method of purifying barium nitrate aqueous solution Jan. 19, 2010
7615206 Methods of fabricating nanoscale-to-microscale structures Nov. 10, 2009
7604892 Y and Nb-doped SrTiO.sub.3 as a mixed conducting anode for solid oxide fuel cells Oct. 20, 2009
7598194 Oxynitride powder and production method thereof Oct. 6, 2009
7553474 Method for producing metal oxide sol Jun. 30, 2009
7554098 Medical isotope generator systems Jun. 30, 2009
7482298 Superconductor compositions operable at high temperatures Jan. 27, 2009
7468169 Process for producing calcium trisulfoaluminate and apparatus for use in said process Dec. 23, 2008
7455763 Recycling process for demetalization of hydrocarbon oil Nov. 25, 2008
7438756 Method of improving material comprising a pozzolanic component Oct. 21, 2008
7419643 Methods and apparatus for recovering gypsum and magnesium hydroxide products Sep. 2, 2008
7371356 Method for the production of precipitated calcium carbonate with a high degree of brightness May. 13, 2008
7347983 Mg2MM'o 6+x, (M=Y, rare earth metal and M'=SN, OR Zr) dielectric ceramics Mar. 25, 2008

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