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Class Information
Number: 423/140
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Iron group metal (fe, co, or ni) > Forming insoluble substance in liquid
Description: Processes wherein a liquid or a 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
423/142 Agitating during reaction 51
423/141 Subjecting mixture to pressure, vacuum, or steam 70
423/146 Sulfating 111
423/143 Utilizing or forming nitrogenous compound 86

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8668761 Method for processing and recycling zinc-rich iron metallurgy side products Mar. 11, 2014
8652427 Preparation and repeated regeneration of material containing amorphous iron oxide hydroxide, desulfurization agents containing the material, and preparation and repeated regeneration thereof Feb. 18, 2014
8647600 Methods for preparing and regenerating materials containing amorphous iron oxide hydroxide and desulfurizer comprising the same Feb. 11, 2014
8628740 Processing method for recovering iron oxide and hydrochloric acid Jan. 14, 2014
8609056 Iron(III) orthophosphate for Li ion accumulators Dec. 17, 2013
8603420 Galvanic waste sludge treatment and manufacturing of nano-sized iron oxides Dec. 10, 2013
8597600 Processes for extracting aluminum from aluminous ores Dec. 3, 2013
8585993 Method for regenerating amorphous iron oxide hydroxide and desulfurizer containing amorphous iron oxide hydroxide as active component Nov. 19, 2013
8580213 Method for recovering nickel from sulfuric acid aqueous solution Nov. 12, 2013
8574518 Production of iron orthophosphate Nov. 5, 2013
8545794 Powder Ni.sub.aM.sub.bO.sub.x(OH).sub..gamma.compounds, processes for making the same, and uses thereof in batteries Oct. 1, 2013
8465723 Arsenic-containing solid and method for producing it Jun. 18, 2013
8404019 Chemical agents for recovery of leached materials Mar. 26, 2013
8399529 Method of homogenization and, optionally, analysis for processing moist noble metal-containing recycling materials with an unknown noble metal content Mar. 19, 2013
8394352 Porous metal oxide particles and their methods of synthesis Mar. 12, 2013
8361191 Low acid leaching of nickel and cobalt from lean iron-containing nickel ores Jan. 29, 2013
8343447 Hydrometallurgical process for a nickel oxide ore Jan. 1, 2013
8337805 Method for preparing magnetite nanoparticles from low-grade iron ore and magnetite nanoparticles prepared by the same Dec. 25, 2012
8298501 Process for forming high density sulfides Oct. 30, 2012
8287827 Process for the hydrometallurgical treatment of a lateritic nickel/cobalt ore and process for producing nickel and/or cobalt intermediate concentrates or commercial products using it Oct. 16, 2012
8287619 Process and equipment for the production of direct reduced iron and/or pig iron from iron ores having a high-phosphorus content Oct. 16, 2012
8287738 Process for removing impurities from iron chloride solutions Oct. 16, 2012
8241594 Processes for extracting aluminum and iron from aluminous ores Aug. 14, 2012
8221640 Method of dissolving the solids formed in a nuclear plant Jul. 17, 2012
8211389 Metal scavenging polymers and uses thereof Jul. 3, 2012
8187360 Process for the instantaneous control of precipitation of nickel and cobalt present in the leach liquor, by adjusting the pH of the solution May. 29, 2012
8173086 Process of recovery of base metals from oxide ores May. 8, 2012
8147782 Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture Apr. 3, 2012
8147783 Nickel hydroxide powder and method for producing same Apr. 3, 2012
8137647 Processes for producing titanium dioxide Mar. 20, 2012
8062620 Catalytic process for the conversion of Co (II)hydroxide in Co (III)oxidehydroxide Nov. 22, 2011
8038979 Metal oxide nano powder and manufacturing method of the same Oct. 18, 2011
7998452 Spherical tricobalt tetraoxide and method of preparing the same Aug. 16, 2011
7988938 Selectively leaching cobalt from lateritic ores Aug. 2, 2011
7964165 Separation method for zinc sulfide Jun. 21, 2011
7922917 Porous ferro- or ferrimagnetic glass particles for isolating molecules Apr. 12, 2011
7922995 Zeolite compositions and preparation and use thereof Apr. 12, 2011
7922996 Zeolite compositions and preparation and use thereof Apr. 12, 2011
7914756 Double replacement cation neutralization of high alkalinity waste materials Mar. 29, 2011
7910085 Process for production of iron oxyhydroxide particles Mar. 22, 2011
7871584 Consecutive or simultaneous leaching of nickel and cobalt containing ores Jan. 18, 2011
7837959 Synergistic solvent extraction process Nov. 23, 2010
7837961 Processes for extracting aluminum and iron from aluminous ores Nov. 23, 2010
7819939 Synthesis of nickel nanopowders Oct. 26, 2010
7811357 Method for recovering rare metals in zinc leaching process Oct. 12, 2010
7799232 Method of treating wastewater with reducing water purification material Sep. 21, 2010
7763221 Process for complete utilisation of olivine constituents Jul. 27, 2010
7754099 Reducing water purification material, method for producing reducing water purification material, method for treating wastewater, and wastewater treatment apparatus Jul. 13, 2010
7749302 Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals Jul. 6, 2010
7601314 Reductive ammoniacal leaching of nickel and cobalt bearing materials Oct. 13, 2009

1 2 3 4 5 6 7 8

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