2957 results about "Chelation" patented technology

Detergent compositions containing catechols, such as tiron (1,2-dihydroxybenzene-3,5-disulfonic acid), which do not have or do not develop the reddish color associated with the catechol/ferric iron chelate are disclosed. Methods for reducing the intensity of red color in a tiron containing detergent composition are also disclosed.

There is provided an alcohol composition obtained by dimerizing an olefin feed comprising C6-C10 linear olefins to obtain C12-C20 olefins, followed by conversion to alcohols, such as by hydroformylation. The composition has an average number of branches ranging from 0.9 to 2.0 per molecule. The linear olefin feed preferably comprises at least 85% of C6-C8-olefins. The primary alcohol compositions are then converted to anionic or nonionic surfactants, preferably sulfated or oxyalkylated or both. The sulfated compositions are biodegradable and possess good cold water detergency. The process for making the dimerized primary alcohol comprises dimerizing, in the presence of a homogeneous dimerization catalyst under dimerization conditions, an olefin feed comprising C6-C10 olefins and preferably at least 85 weight % of linear olefins based on the weight of the olefin feed, to obtain a C12-C20; optionally double bond isomerizing said C12-C20 olefins; and converting the C12-C20 olefins to alcohols, preferably through hydroformylation. The process is preferably a one-step dimerization. The homogenous catalyst comprises a mixture of a nickel carboxylate or a nickel chelate, with an alkyl aluminum halide or an alkyl aluminum alkoxide.

An aluminum-containing material deposition method includes depositing a first precursor on a substrate in the substantial absence of a second precursor. The first precursor can contain a chelate of Al(NR¹R²)_x(NR³(CH₂)_zNR⁴R⁵)_y or Al(NR¹R²)_x(NR³(CH₂)_zOR⁴)_y; where x is 0, 1, or 2; y is 3−x; z is an integer 2 to 8; and R₁ to R₅ are independently selected from among hydrocarbyl groups containing 1 to 10 carbon atoms with silicon optionally substituted for one or more carbon atoms. The method includes depositing the second precursor on the first deposited precursor, the second precursor containing a nitrogen source or an oxidant. A deposition product of the first and second precursors includes at least one of an aluminum nitride or an aluminum oxide. The deposition method can be atomic layer deposition where the first and second precursors are chemisorbed or reacted as monolayers. The first precursor can further be non-pyrophoric.

The subject invention pertains to metal organic frameworks (MOF) having zeolite-net-like topology, their methods of use, and their modes of synthesis. The ZMOFs are produced by combining predesigned tetrahedral building, generated in situ using heterochelation, with polyfunctional ligands that have the commensurate angle and the required donor groups for the chelation. Each molecular building block is contrasted of a single metal ion and ligands with both heterochelation functionality and bridging functionality. Advantageously, zeolite-net-like MOFs of the subject invention are porous and contain large functional cavities, which is useful for encapsulating large molecules.

The invention provides methods for the measurement of carbon dioxide leakage from sequestration reservoirs. Tracer moieties are injected along with carbon dioxide into geological formations. Leakage is monitored by gas chromatographic analyses of absorbents. The invention also provides a process for the early leak detection of possible carbon dioxide leakage from sequestration reservoirs by measuring methane (CH₄), ethane (C₂H₆), propane (C₃H₈), and/or radon (Rn) leakage rates from the reservoirs. The invention further provides a method for branding sequestered carbon dioxide using perfluorcarbon tracers (PFTs) to show ownership.

This invention discloses improved residential roofing products with durable active protection against algae discoloration. Versatile organometallic salts and chelates for this purpose are incorporated in manufacture of composite concrete tile and asphalt shingle products via integrated process modifications. These chemically stable non-volatile microbiocides, with exceptional effectiveness against both green and blue green algae, are tailored for specific matrix compatibility. By virtue of their composition and surface activity they serve a dual function in process improvement and product performance. The control of microbiocide activity, long term, significantly advances the state-of-the-art protection against algae and the service life of these products.

A composition and method of making a processed cereal piece fortified with a metal amino acid chelate is disclosed and described. A processed cereal piece and one or more metal amino acid chelates may be combined by either 1) admixing the metal amino acid chelate(s) into the dough, flour or other precursor prior to toasting and/or otherwise cooking; and/or 2) coating the processed cereal piece with the metal amino acid chelate(s).

A molecule for labeling a target material is provided including two transition-metal chelates and a detectable group. The molecule has the general structural formula (I):

The invention disclose a compound amino acid organic fertilizer, which is characterized in that the compound amino acid organic fertilizer consists of the following ingredients in parts by weight: 5 to 10 of compound amino acid, 0.3 to 0.5 of microbial yeasts, 16 to 29 of inorganic fertilizers, 5 to 10 of humic acid fertilizers and 0.2 to 1 of trace elements. A production method of the compound amino acid organic fertilizer comprises the following steps that: firstly, compound amino acid water solution, the microbial yeasts and the humic acid fertilizers are respectively prepared, then, inorganic compounds containing boron, copper, iron, manganese and zinc are added into the compound amino acid water solution, and the chelation is carried out at a temperature being 80 to 110 DEG C so that the mixture becomes free-state chelated amino acid salt; after the metering, 10 to 50kg of raw materials are added into each ton of farmyard manure to be mixed, then, the mixed materials are placed into a warehouse for natural stacking and curing for 3 to 5 days and can be pelletized and packed to leave factories. The compound amino acid organic fertilizer can be used as a base fertilizer and an additional fertilizer and belongs to a compound organic fertilizer capable of improving the amino acid content of high-quality fragrant rice and fruit and vegetables, improving the fruit and vegetable quality and improving the sugar content of sugarcanes.

A water-based cleaner is prepared by surfactant primary washing part, alkaline auxiliary washing part, solvent part, preservative and water; wherein the surfactant primary washing part is compounded by anion and nonionic surfactant; the alkaline auxiliary agent part selects trolamine, sodium metasilicate pentahydrate which has dispersive action on dirt and EDTA disodium which has chelation on metallic ions, and excludes phosphate accessory aid which pollutes water quality. The solvent part selectes alcohol, glycol ether or natural orange oil extract D-limonene which have good safety performance, strong solvency and little environmental pollution. The preservative selects food grade preservative propylparaben which is safe and nontoxic. The invention adopts concentrate formula, the preparation method is simple, users can dilute the product according to object to be washed and the degree of dirt, and operate with reasonable using concentration, thus avoiding the waste of washing cost due to excessive concentration and the waste of energy. The inventive water-based cleaner reduces package cost and transportation cost, and has no adverse effect on the environment.

Wet-chemical methods involving the use of water-soluble hydrolytically stable metal-ion chelate precursors and the use of a nonmetal-ion-containing strong base can be used in a coprecipitation procedure for the preparation of ceramic powders. Examples of the precipitants used include tetraalkylammonium hydroxides. A composition-modified barium titanate is one of the ceramic powders that can be produced. Certain metal-ion chelates can be prepared from 2-hydroxypropanoic acid and ammonium hydroxide.

Non-ionic late transition metal chelates of salicylaldimine and pyrrolaldimine can be tethered to an inert support by a covalent bond to provide a catalyst useful in slurry and gas phase polymerization of olefins.

Novel chemical compounds, with application in fluorometric analytical methods, for qualitative and quantitative determination of biomolecules. The aim of the invention is to identify and prove the suitability of such compounds. Said aim is achieved with compounds of formula (1) where R′ is an antenna function, R² is a chelate forming agent, containing a coordinated lanthanide(III)ion, X is —OH or a group with affinity for the biomolecule, bonded to a carboxylate group of the chelate forming agent by means of an amide bond and Y is —H or a group with affinity for the biomolecule, coupled to the antenna function.

The invention discloses a magnetic gold nanoparticle composite material, and a preparation method and application thereof. The preparation method comprises the following steps: synthesizing ferroferric oxide magnetic microspheres, adding tetraethoxyl silicon to implement hydrolysis and polymerization on the magnetic microsphere surfaces, adding N-(2-aminoethyl)-3-aminopropyltrimethoxysilane to obtain surface-modified double-amino-group Fe3O4/SiO2 magnetic microspheres, and compounding the surface-modified double-amino-group magnetic microspheres with gold nanoparticles. The chelation action of the double amino groups is utilized to adsorb the gold nanoparticles more firmly; and the material combines the surface selectivity of the gold nanoparticles and the superparamagnetism of the magnetic nanoparticles, can extract benzopyrene in water, and can implement quick and efficient separation.

The invention discloses a preparation method of a chelate coating with copper ions capable of controllably catalyzing release nitrogen monoxide and a polyphenol complex. The preparation method comprises the following steps: soaking a target modified material or an instrument in a mixed aqueous solution consisting of soluble metal salt, soluble copper salt and a compound having an o-phenol structure; and depositing a layer of chelate coating with copper ions with a function of catalyzing nitrogen monoxide and the polyphenol complex on the surface. The chelate coating with the copper ions and the polyphenol complex, which is obtained by the preparation method disclosed by the invention, not only has excellent biocompatibility and bacterial resistance, but also has a function of inducing catalysis of endogenous nitrogen monoxide to release in a blood environment. In addition, the coating is nearly applicable to surface modification of materials of all textures, complex geometrical shapes and different topological structures.

A poly(2,6-dimethyl-1,4-phenylene ether) having a high molecular weight and a reduced content of low molecular weight species can be prepared by a method that includes specific conditions for the oxidative polymerization, chelation, and isolation steps. The poly(2,6-dimethyl-1,4-phenylene ether) is particularly useful for the fabrication of fluid separation membranes.

The invention relates to a preparation method and an application of a magnetic fluorescent nanoparticle with a shell-core structure. Firstly, a silica magnetic microsphere with a shell-core structure is prepared by using one or more than one of nanoparticles of Fe3O4, gamma-Fe2O3, MeFe2O4 (Me=Co, Mn, Ni), metal Ni, Co, Fe, and alloy Fe-Co, Ni-Fe as the inner core, and coating a silica shell, and then a fluorescent material (a chelate of Eu3+, Sm3+, Dy3+, Tb3+ and the like) is absorbed on the silica shell. Then, a layer of silica is coated on the surface to improve the stability of the fluorescent magnetic microsphere, and to prevent agglomeration and fluorescent material leakage. A lot of rare earth fluorescent materials are wrapped in the shell layer, so the fluorescence intensity signal of a prepared sample is greatly increased. The nanoparticle has dual functions of enrichment and marking, and has wider application prospects in the biomedical field.

The invention discloses a method for remedying the organic compound pollution in soil and/or water. The method comprises the following steps: adding persulfates into the soil which is dispersed in the water and subjected to the organic compound pollution, or adding the persulfates into the water subjected to the organic compound pollution; adjusting the pH (Potential of Hydrogen) value to 3-12; adding hydrogen peroxide; and finally adding an activating agent, wherein the activating agent is a chelate chelated by metal salts and a chelate agent; the metal salt is selected from one or any combination of two of Fe salts or Mn salts. In the condition that the same amount of the organic compound is oxidized, the method provided by the invention can be used for greatly saving the consumption of hyperoxides.

The invention discloses a polymer microsphere and preparation method thereof. The microsphere comprises a core and surface graft; wherein the core is monodispersed polystyrene-divinyl benzene microsphere with crosslinking degree of 60-90% and grain diameter of 2-20 microns, and the surface graft is polyglycidyl methacrylate or derivate thereof. Friedel-Crafts acylation is utilized, alpha-halogenacyllhalide is taken as acylation agent, initiator molecule is bonded on the surface of the microsphere; conventional atom transfer radical polymerization method is utilized to initiate monomers glycidyl methacrylate to condense; then different nucleopilic reagent is utilized for opening ring, and amino, hydroxyl, hydrazine, carboxyl and sulfydryl groups are introduced onto the surface of the microsphere. The polymer microsphere can be used as separation material for different chromatographs for high efficiency ion exchange, chelation and high efficiency affiliation, also can be used as carrier for fixing enzyme and catalyst and is an excellent functional microsphere.

The present invention provides a conductor composition that can be formed into a film conductor having a resistance to soldering heat of a sufficient level in practical use without using a large amount of expensive precious metals such as Pd and without performing a Ni plating treatment or other treatments separately. This conductor composition is provided in the form of paste or ink having metal powder as the main component. This metal powder is constituted substantially by particulates of Ag or an Ag based alloy whose surface is coated with an organic metal compound. The organic metal compound is preferably an organic acid metal salt, metal alkoxide or a chelate compound having as a main constituent metal element any one selected from the group consisting of Al, Zr, Ti, Y, Ca, Mg and Zn.

The present invention provides novel amino acid compounds useful in detecting and evaluating brain and body tumors. These compounds have the advantageous properties of rapid uptake and prolonged retention in tumors and can be labeled with halogen isotopes such as fluorine-18, iodine-123, iodine-124, iodine-125, iodine-131, bromine-75, bromine-76, bromine-77, bromine-82, astatine-210, astatine-211, and other astatine isotopes. These compounds can also be labeled with technetium and rhenium isotopes using known chelation complexes. The compounds disclosed herein bind tumor tissues in vivo with high specificity and selectivity when administered to a subject. Preferred compounds show a target to non-target ratio of at least 2:1, are stable in vivo and substantially localized to target within 1 hour after administration. Preferred compounds include 1-amino-2-[¹⁸F]fluorocyclobutyl-1-carboxylic acid (2-[¹⁸F]FACBC) and 1-amino-2-[¹⁸F]fluoromethylcyclobutyl-1-carboxylic acid (2-[¹⁸F]FMACBC). The labeled amino acid compounds of the invention are useful as imaging agents in detecting and/or monitoring tumors in a subject by PET or SPECT.

A method of enhancing a mineral level in an animal with reduced environmental impact can comprise orally administering a metal amino acid chelate to an animal, wherein the amino acid to metal molar ratio of the metal amino acid chelate is from about 1:1 to 4:1. The metal can contribute to a mineral level within the blood and tissues of the animal that is effective for stimulating growth of the animal to a greater degree than would be realized by administering the same amount of metal in the form of an inorganic metal salt. Additionally, the amount of the metal excreted in the feces of the animal can be less than would be present when administering the same amount of metal in the form of the inorganic metal salt. The metal amino acid chelate can also serve as a source highly bioavailable amino acids, so that the excretion of nitrates by the animal may be reduced while still promoting efficient growth.