Class 210/688 - Heavy metal

Subclass of Class 210 - Liquid purification or separation
Definition: Process wherein the constituent is a positively charged
No. of applications: 145
Last issue date: 05/24/2012

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Application No.	Application Title	Issue Date
20120125856	NANOCOMPOSITE SOLID MATERIAL BASED ON HEXA- AND OCTA- CYANOMETALLATES, METHOD FOR THE PREPARATION THEREOF AND METHOD FOR FIXING MINERAL POLLUTANTS USING SAID MATERIAL A nanocomposite solid material includes nanoparticles of a metal coordination polymer with CN ligands comprising Mⁿ⁺cations, in which M is a transition metal and n is 2 or 3; and anions [M′(CN)_m]^x−in which M′ is a transition meta...	05/24/2012
20120103911	SYNTHESIS OF SODIUM TITANATE This invention relates to a process for producing a sodium titanate that can be utilized in an ion exchange media. The sodium titanate ion exchange media can be subsequently used to remove contaminants such as metals from water in a variety of applications. The sodium t...	05/03/2012
20120103912	MIXED VALENCY METAL SULFIDE SORBENTS FOR HEAVY METALS A sorbent, suitable for removing heavy metals, including mercury, from fluids containing hydrogen and/or carbon monoxide at temperatures up to 550° C., in the form of a shaped unit comprising one or more mixed-valency metal sulphides of vanadium, chromium, manganese, i...	05/03/2012
20120034594	Methylocystis Strain SB2 Materials and Methods The present disclosures provides isolated or purified compounds, each of which bind to a metal atom. Generally, the compounds are small in size (e.g, molecular weight of less than about 1 kDa) and peptidic in nature, inasmuch as the compounds comprise amino acids. In so...	02/09/2012
20120018384	MERCURY REMOVAL FROM WATER The present invention provides a method of removing mercury from water. The method includes depositing selenium or a reactive selenium compound on a support structure, such as reticulated foam. The support structure is then placed in contact with mercury laden water whe...	01/26/2012
20120012532	ARSENIC SORBENT AND METHOD FOR REMEDIATING ARSENIC-CONTAMINATED MATERIAL An arsenic sorbent includes monohydrocalcite that has been precipitated by mixing an aqueous solution of a soluble carbonate or a carbonate with an aqueous solution that includes an Mg²⁺ ion and a Ca²⁺ ion in a ratio “Mg/Ca” of 0.3 or more, the...	01/19/2012
20120012531	ADSORBENT FOR ADSORPTION OF HEAVY METALS IN WASTE WATER A method and adsorbent composition for removing heavy metals from contaminated water, comprising including mixing a water having a concentration of one or more heavy metals with an adsorbent including granules of a mixture of 3.33 wt % bentonite clay and a siwak stick p...	01/19/2012
20110315013	Coupling Agent-Reacted Mercury Removal Media The use of a coupling agent containing a mercapto, disulfide, tretrasulfide and/or polysulfide end group provides a mercury removal media having increased reactivity, stability, and mercury removal ability. The mercury removal media described herein is prepared by react...	12/29/2011
20110319697	Sorption processes Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The sorbent composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxite ores. Exemplary sulfidizing co...	12/29/2011
20110309025	Methods for using sulfidized red mud Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The sorbent composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxite ores. Exemplary sulfidizing co...	12/22/2011
20110303612	METHOD OF MAKING AND USING A COMPOSITE ADSORBENT FROM NATURAL RAW MATERIAL TO REMOVE HEAVY METAL FROM INDUSTRIAL WASTE WATER An adsorbent composition and method of using the adsorbent composite is described. The method for removing heavy metals from contaminated water is done by mixing contaminated water having a concentration of one or more heavy metals with an adsorbent composite comprising...	12/15/2011
20110247312	Coated Flow-Through Substrates and Methods for Making and Using Them A coated flow-through substrate comprising a flow-through substrate and a sulfur-containing compound disposed as a coating on the flow-through substrate. The coated flow-through substrate may be used, for example, in the removal of a heavy metal from a fluid such as a g...	10/13/2011
20110243819	METAL SCAVENGING POLYMERS AND USES THEREOF Uses for a composition comprising a polymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. These ...	10/06/2011
20110226700	REDUCED COPPER SULPHIDE SORBENT FOR REMOVING HEAVY METALS A sorbent, suitable for removing heavy metals, particularly mercury, from fluid streams containing a reductant such as hydrogen and/or carbon monoxide, is in the form of a shaped unit containing ≦0.1% by weight in total of heavy metal selected from mercury, arsenic, l...	09/22/2011
20110226699	Nanoporous Silica Polyamine Composites with Surface-Bound Zirconium (IV) and Methods of Use Silica polyamine composites (SPC) made from silanized amorphous nano-porous silica gel and poly(allylamine) (BP-1) were functionalized with phosphorus acid using the Mannich reaction, resulting in a phosphonic acid modified composite (BPAP). Zirconium (IV) was immobiliz...	09/22/2011
20110220576	ADSORBENTS An adsorbent suitable for heavy metal absorption is described, comprising a thiol functionalised support containing a stabilising amount of an alkaline metal reacted with said thiol functionality. The adsorbent may be used to remove heavy metals e.g. mercury and/or arse...	09/15/2011
20110220579	REMOVAL OF METAL IONS FROM AQUEOUS EFFLUENTS The invention relates to a method of reducing the ionic metal content of aqueous effluents. The inventive method consists in bringing an aqueous effluent loaded with metal ions into contact with at least one hydrogen-covered metal....	09/15/2011
20110220577	PROCESS FOR THE REMOVAL OF ARSENIC AND CHROMIUM FROM WATER The present invention provides low cost and highly effective method for the removal of arsenic and Cr(III&VI) from contaminated water using zinc peroxide nanoparticles (20±5 nm) capped with glycerol/PVP/TEA upto the permissible range of drinking water. As Arsenic a...	09/15/2011
20110220358	ASSEMBLIES FOR THE PURIFICATION OF A RESERVOIR OR PROCESS FLUID A sugar-based assembly is provided for the removal of a component from a reservoir or process fluid. The sugar-based assembly comprises a sugar optionally bound to a support, and where the support is present, the sugar is bound directly to the support or via a linker gr...	09/15/2011
20110220578	ADSORBENTS An adsorbent suitable for heavy metal adsorption is described, comprising a thiol functionalised support wherein the adsorbent has a BET surface area in the range 200-500 m²/g, a pore diameter in the range 70-150 Angstroms and a pore volume≧0.25 cm³	09/15/2011
20110168638	METHODS OF USING ADSORPTION MEDIA FOR SEPARATING OR REMOVING CONSTITUENTS Methods of using an adsorption medium to remove at least one constituent from a feed stream. The method comprises contacting an adsorption medium with a feed stream comprising at least one constituent and removing the at least one constituent from the feed stream. The a...	07/14/2011
20110132843	Composite as Adsorbent and Catalyst, Manufacturing Method Thereof, and Method of Treating Wastewater Using Same A composition as adsorbent and catalyst is manufactured by adding activated carbon into a aqueous solution comprising a plurality of metal salts, adjusting the solution to a predetermined pH value according to the types of the plurality of metal salts, drying the soluti...	06/09/2011
20110132844	METHOD FOR IMPROVED REMOVAL OF CATIONS BY MEANS OF CHELATING RESINS The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having acetic acid and/or iminodiacetic acid groups having high dynamic absorptio...	06/09/2011
20110132845	METHOD FOR EXTRACTING A METAL PARTICULATE FROM AN AQUEOUS SOLUTION USING A SOL-GEL DERIVED SORBENT Disclosed is a method for extracting metal particulates for an aqueous solution using a sol-gel derived sorbent....	06/09/2011
20110127221	Method To Remove Toxic Heavy Metals A method to remove toxic heavy metals soluble in wastewaters of household or industrial origin that comprises the phases of: Providing lignocellulosic material with low moisture (10% or less) which is subject to grading reduction with a siz...	06/02/2011
20110089116	METHOD FOR IMPROVED REMOVAL OF CATIONS BY MEANS OF CHELATING RESINS The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having aminomethylphosphonic acid groups and iminodimethylphosphonic acid groups ...	04/21/2011
20110068059	MERCURY REMOVAL WITH SORBENTS MAGNETICALLY SEPARABLE FROM TREATED FLUIDS Methods and apparatus relate to treatment of fluids to remove mercury contaminants in the fluid. Contact of the fluid with active outer surfaces of particles magnetically separable from the fluid loads the particles with the mercury contaminants. Magnetic separation the...	03/24/2011
20110049057	Metal Immobilization Using Slag Fines A method for immobilizing metal in soil includes blending slag fines with soil to form a media. The slag fines immobilize metal present in the media and reduce leaching of the metal into water....	03/03/2011
20110046430	METAL REMEDIATION USING A MESOPOROUS NANOCOMPOSITE A novel method for remediating metals includes treating the metals with a mesoporous nanocomposite such as HMS, MCM-41 or MCM-48. The metal is preferably lead but can be at least one metal selected from Pb, Hg, Cd, Zn, Sn, As, Sb, In, Se, Ga, Te, Bi, Ni, Cu, Mo, Ni, Cu,...	02/24/2011
20110017671	WATER TREATMENT SYSTEM AND METHOD A water treatment apparatus and system, comprising a treatment tank with a plurality of flow-through containers filled with iron shavings. The water is recirculated through the containers of iron shavings in series to treat contaminants, including but not limited to hex...	01/27/2011
20110000855	Media for Removal of Contaminants from Fluid Streams and Method of Making and Using Same Sorption media for removal of contaminants from fluid streams are provided. The sorption media comprise an active compound bound or linked to a support substrate or matrix. Support substrates can include iron- and alumina-based materials. A method for making sorption me...	01/06/2011
20100326921	Process for obtaining an adsorbent from a waste material and use of the adsorbent In the present, a procedure of obtaining adsorbent from a waste material and its use are disclosed. This invention provides a natural waste material, specifically avocado seed, its preparation and use for the filling of columns used in the elimination of contaminants pr...	12/30/2010
20100320153	ABSORBENTS An absorbent composition suitable for removing mercury, arsenic or antimony from fluid streams includes 5-50% by weight of a particulate sulphided copper compound, 30-90% by weight of a particulate support material, and the remainder one or more binders, wherein the met...	12/23/2010
20100307980	HIGH CAPACITY ADSORPTION MEDIA FOR SEPARATING OR REMOVING CONSTITUTENTS AND METHODS OF PRODUCING AND USING THE ADSORPTION MEDIA A method of producing an adsorption medium to remove at least one constituent from a feed stream. The method comprises dissolving and/or suspending at least one metal compound in a solvent to form a metal solution, dissolving polyacrylonitrile into the metal solution to...	12/09/2010
20100307979	CHELATE RESIN The present application relates to novel chelate resins which contain, as a functional group, quaternary nitrogen atoms in structures of the general formula (I) in which at least one of the radicals R_{1 <...}	12/09/2010
20100300975	System and Process for Treatment of a Contaminated Fluid A new device, method, and system are disclosed that provide for removal of undesired materials from a contaminated fluid. Materials present in the fluids are kept in motion in one or more filter cassettes that include disc aerators that improve contact times with the so...	12/02/2010
20100300974	Continuous Batch Reactor, System, and Process for Treatment of Metal-Contaminated Fluids A fluid treatment device, system, and process are described that provide a filtered, metal-depleted (treated) fluid. The system includes two pairs of tanks that are piped and valved to allow one pair to fill/react while the other pair decants/discharges, which provides ...	12/02/2010
20100288124	Sulfur functionalized polymers for separation of metals from gas and liquid and methods for preparation thereof Methods of preparation and application of sulfur functionalized polymers. More particularly, triazine, cyclotriphosphazene and/or phenyl derivatives can be polymerized to form sulfur functionalized polymers. The materials can be used for separating heavy metals from gas...	11/18/2010
20100288704	Flow-Through Substrate Assemblies and Methods for Making and Using Said Assemblies Assemblies comprised of mounted flow-through substrates and methods for using and making said assemblies....	11/18/2010
20100276372	MERCURY ADSORBENT COMPOSITION, PROCESS OF MAKING SAME AND METHOD OF SEPARATING MERCURY FROM FLUIDS A heavy metal adsorbent composition configured for use as a mercury adsorbent composition, agent or product is shown. The mercury adsorbent composition comprises a natural diatomite in the form of siliceous frustules of diatoms having a surface punctuated by a series of...	11/04/2010

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Class 210/688 - Heavy metal