57 results about "Iron complex" patented technology

The application provides an amido phenolic iron complex, a preparation method and application thereof. The amido phenolic iron complex comprises a metal central atom Fe and a ligand coordinated with the metal central atom Fe, and the ligand has a structure shown in formula I: in formula I, R1, R1', R2 and R2' are the same or different, and each is independently selected from H, Me, t Bu; and R is selected from the amido phenolic iron complex. The preparation method is simple, as a catalyst, the amido phenolic iron complex has the characteristics of safety, non-toxicity, green environmental protection, low cost, mild catalytic condition, no additional solvent, high catalytic efficiency and high selectivity.

The application discloses a preparation method of a leather-wood-based electronic sensing floor, and specifically comprises the following steps: mixing gelatin and deionized water, adding KH570, adjusting pH with hydrochloric acid to obtain modified gelatin; adding chitosan to an FeCl3 aqueous solution to obtain a chitosan-iron complex; dissolving the modified gelatin in water, mixing the modified gelatin with the chitosan-iron complex, and adding MXene for ultrasonic dispersion; adding polyethylene glycol diacrylate and ammonium persulfate to obtain a sensing adhesive layer precursor solution; hollowing the inside of a silica gel pad, placing the silica gel pad between a leather and a wood board, placing two copper wires on the two sides of the silica gel pad, injecting the sensing adhesive layer precursor solution into the inside of the silica gel pad, clamping the leather and the wood board, heating and polymerizing, taking out the silica gel pad, and obtaining the leather-wood-based electronic sensing floor. The electronic sensing floor prepared by the application has excellent stability, durability, strain and pressure sensing properties; in addition, the preparation method has simple preparation process, simple operation process and mild conditions.

This invention discloses an iron complex with a triazacyclic nonane macrocyclic skeleton, its preparation method, and its applications, belonging to the field of coordination chemistry. The iron complex has a triazacyclic nonane macrocyclic skeleton with two acetate side groups and one pyridine-N derivative side group. The iron complex exhibits excellent catalytic activity in the aerobic oxidation of N-aryltetrahydroisoquinoline, while also possessing good stability. The solvents for the catalytic reaction are water and acetonitrile, resulting in low pollution. This invention features mild reaction conditions, simple synthesis operations, and straightforward post-processing, meeting the requirements of environmental friendliness and clean production.

The present invention relates to an iron complex having the general formula (I) or a pharmaceutically acceptable salt thereof. The present invention also relates to a pharmaceutical composition formulated for oral and / or parenteral administration, preferably intravenous, said pharmaceutical composition preferably being formulated as an aqueous solution comprising said complex or salt. The present invention further relates to said complex or a salt thereof or said pharmaceutical composition for use as a contrast agent for magnetic resonance imaging (MRI), as well as a method and a kit for in situ preparation of said complex or salt and said pharmaceutical composition.

The invention discloses an iron complex with a triazacyclononane macrocyclic skeleton as well as a preparation method and application of the iron complex, and belongs to the technical field of coordination chemistry. The iron complex has a triazacyclononane macrocyclic skeleton, and is attached with two acetate side groups and one pyridine-N derivative side group; the iron complex shows excellent catalytic activity in the aerobic oxidation reaction of N-aryl tetrahydroisoquinoline and has good stability, solvents for the catalytic reaction are water and acetonitrile, and pollution is small. The method is mild in reaction condition, simple in synthesis operation and simple in post-treatment, and meets the requirements of environment friendliness and clean production.

Solid absorbent compositions and methods for removing mercaptan sulfur compounds from hydrocarbon streams are provided. These compositions can include porous granular activated carbon particles having an internal pore surface containing a bound trinuclear basic iron(III) acetate complex containing a [Fe3(μ 3 -O)] core structure.

The invention provides a preparation process of a feed additive organic trace humic acid iron (complex) chelate, the specific flow comprises coal (peat, lignite and weathered coal) mineral separation, coal mine crushing and oxidation chain scission, coal water slurry preparation, fine selection and impurity removal, biological acidification reaction, enzymatic hydrolysis reaction, chelation reaction and drying granulation, and the complex (complex) rate of the prepared complex (complex) is greater than 95%. The invention solves the technical problems that the existing humic acid iron product is prepared by physical modes such as mixing, roasting, washing, concentration crystallization and the like or chemical reaction and is low in utilization rate, and solves the technical problems that in the prior art, the pH value of gastrointestinal tracts is regulated only by utilizing acidity of ferric sulfate or humic acid is utilized to promote feed activation and absorption, regulate intestinal health and the like; and the problem that the iron absorption rate is improved by an iron combination form is not fundamentally solved.

The invention relates to sewage treatment, in particular to a method and a system for removing organic matters in salt-containing leachate. According to the method, the salt-containing leachate is subjected to Fenton oxidation under the acidic condition that the pH value is 2.0-5.0, then complexing sedimentation and solid-liquid separation are carried out under the acidic condition that the pH value is 3.0-5.0, and relatively large organic intermediate product molecules (such as phenols and aromatic carboxylic acids) are removed; adjusting the supernate to be neutral or alkaline, removing complexing of soluble organic acid iron complexes (such as carboxylic acid iron complexes and the like), and releasing small-molecule organic intermediate products (such as aliphatic carboxylic acid and the like); and adjusting the pH value of the water body to be 4.0-6.0 and weakly acidic, adding a flocculating agent, and removing residual micromolecular organic intermediate products.

To provide a small animal floor plate that can be installed in a cage or the like without using a water-permeable plate such as a punched plate as a deodorizing means for small animals made from fully ripened compost or the like. [Solution] The floor board 1 is a floor board that is placed in a cage or the like to absorb and deodorize the urine of small animals. It contains fully matured compost and diatomaceous earth and is formed into a plate shape. It is more preferable that the floor board contains humus soil in addition to the fully matured compost and diatomaceous earth. In particular, it is preferable that the humus soil contains fulvic acid and an iron complex.

The invention relates to the technical field of petrochemical engineering catalytic materials, in particular to an oil-soluble iron-based catalyst and a preparation method and application thereof.The preparation method comprises the steps that fatty acid and high-polymer organic acid serve as organic acid ligands, and under the alkaline condition, the fatty acid, the high-polymer organic acid and soluble iron salt are mixed to obtain a mixture; reacting carboxyl in fatty acid and high polymer organic acid with iron ions in soluble iron salt to obtain an oily polyisobutylene maleic acid iron complex; the preparation method comprises the following steps: by taking an oily polyisobutylene maleic acid iron complex as a precursor, reacting the precursor at 120-180 DEG C to obtain the amorphous oil-soluble iron-based catalyst. Due to the amorphous structure of the oil-soluble iron-based catalyst prepared by the method, the oil-soluble catalyst has higher stability and is not easy to inactivate. The oil-soluble iron-based catalyst is subjected to a hydrothermal cracking reaction, heavy oil molecules can be cracked into small molecule compounds, the boiling point of the heavy oil is reduced, a large amount of light oil is generated, and the viscosity of the heavy oil is reduced.

The invention provides a remote large-steric-hindrance substituted phenanthroline framework iron complex and a ligand compound thereof, a catalyst composition containing the complex and application of the complex to catalysis of ethylene oligomerization and polymerization reactions, and the complex shows excellent catalytic activity and thermal stability in catalysis of ethylene oligomerization and polymerization reactions. The catalytic performance of the iron complexes is obviously superior to that of similar iron complexes with other phenanthroline frameworks.

Provided are macrocyclic compounds and iron or cobalt coordinated macrocyclic compounds. The compounds can be used as MRI contrast agents. Certain compounds are redox active and can be used to assess the biological redox status of a sample.

A method for preparing a cycloheptyl-fused iminopyridine iron complex catalyst of Formula (I): (I) wherein R1 is H, methyl, ethyl, or isopropyl; R2 is methyl or H. Preferably, the method comprises the

An anolyte for a redox-flow battery (RFB) comprising a metal-ion complex and a phosphonate-based ligand having a phosphonic group wherein the phosphonic acid group is directly coordinated to a metal-ion.

The invention relates to the technical field of chemical pharmacy and fine chemical preparation. In particular to a method for synthesizing alpha, beta-diamino acid derivatives by iron catalysis, which comprises the following steps of: synthesizing a series of various substituted alpha, beta-diamino acid derivatives by taking various substituted 3-diazoindole-2-ketone, arylamine and oxazolone as raw materials under the catalysis of an iron complex; the problems of dependence on strong acidic conditions and substrate limitation caused by the dependence in the prior art are solved. The reaction is high in yield, mild in condition, wide in substrate application range and simple and convenient to operate. A novel method which is simple, efficient, green and environment-friendly is provided for synthesis of the compounds, and the method can be widely applied to the technical fields of chemical pharmacy and fine chemical engineering preparation.

The invention provides an iron complex, a catalyst composition, a preparation method and application and an ethylene oligomerization reaction method, and relates to the technical field of ethylene oligomerization. The structural formula of the iron complex is shown in the formula (I), in the formula (I), R1-R6 and R9-R11 are the same or different and are independently any one of hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitryl; r7 is selected from any one of hydrogen, C1-C6 alkyl groups, halogen, C1-C6 alkoxy groups, C6-C15 aryl groups and nitryl groups; r8 and R12 are the same or different and are independently selected from any one of hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitro respectively; and R13 and R14 are the same or different and are selected from C1-C20 alkyl groups. The iron complex can be completely dissolved in an organic solvent, and the concentration of the iron complex can be accurately metered in industrial operation, so that stable operation of reaction is ensured. The catalyst composition comprises the iron complex, so that under the action of the catalyst composition, the ethylene oligomerization reaction is rapid to initiate, stable in operation and good in repeatability.

The present invention relates to iron complex compounds for subcutaneous use in a method of therapy, e.g., for iron deficiency, particularly of iron deficiency anaemia, in a companion animal and to pharmaceutical compositions for subcutaneous administration, comprising an iron complex compound and a pharmaceutically acceptable carrier. The present invention relates more particularly, although not exclusively, to iron octasaccharide complexes, pharmaceutical compositions comprising an iron octasaccharide complex, and the iron octasaccharide complexes for use in a method of therapy of iron deficiency, particularly of iron deficiency anaemia, in a human or non-human subject.

The application belongs to the technical field of conjugated diene polymerization, and particularly relates to a phosphine quinoline ligand, a phosphine quinoline iron complex, a preparation method thereof and application thereof in catalyzing conjugated diene polymerization. The phosphine quinoline ligand and the iron complex are respectively shown as formula I and formula II. The iron complex is a bidentate N, P-coordination catalyst, has a single catalytic active center, and can realize high-activity and high-selectivity polymerization of conjugated dienes by regulating ligand electronic effects, space effects and polymerization conditions. The iron complex only needs 5 equivalents of dry methylaluminoxane to be activated, and still maintains high activity at high temperature (100 DEG C). The obtained polyconjugated diene has narrow molecular weight distribution, and microstructure (cis-1, 4, trans-1, 4, 3, 4 or 1, 2) can be accurately regulated. The reaction system is green, environmentally friendly, low in cost and excellent in thermal stability, and is suitable for industrialized production of high-performance elastomer materials.

The invention provides an iron complex, the structural general formula of the iron complex is as shown in formula (I), in the formula (I), R1-R11 are respectively and independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy, nitryl and aryl, R12-R13 are the same or different and are respectively and independently selected from C2-C6 alkylene, and X is halogen. The iron complex with a specific structure provided by the invention is suitable for being used as a main catalyst of an ethylene oligomerization catalyst. The ethylene oligomerization catalyst using the iron complex as the main catalyst also has high oligomerization reaction activity at a high temperature (more than 60 DEG C), when the oligomerization reaction activity is increased to about 60 DEG C from low to high, the catalytic activity is reduced slowly, and the oligomerization reaction is rapid in initiation, stable in operation and good in repeatability; and when the temperature is higher than 60 DEG C, condensed water can be used as a condensing medium for reaction, so that the energy consumption of a process device is reduced. The invention also provides a preparation method and application of the iron complex, an ethylene oligomerization catalyst and an ethylene oligomerization method.

The invention provides an iron complex, the structural general formula of the iron complex is as shown in formula (I), in the formula (I), R1-R11 are respectively and independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy, nitryl and aryl, R12-R13 are the same or different and are respectively and independently selected from C3-C7 alkenyl, and X is halogen. The iron complex with a specific structure provided by the invention is suitable for being used as a main catalyst of an ethylene oligomerization catalyst. The ethylene oligomerization catalyst using the iron complex as the main catalyst also has high oligomerization reaction activity at a high temperature (more than 60 DEG C), when the oligomerization reaction activity is increased to about 60 DEG C from low to high, the catalytic activity is reduced slowly, and the oligomerization reaction is rapid in initiation, stable in operation and good in repeatability; and when the temperature is higher than 60 DEG C, condensed water can be used as a condensing medium for reaction, so that the energy consumption of a process device is reduced. The invention also provides a preparation method and application of the iron complex, an ethylene oligomerization catalyst and an ethylene oligomerization method.

The invention discloses a method for detecting the content of ferric iron in lubricating oil, and belongs to the technical field of lubricating oil quality detection. The method comprises the following steps: mixing 0.4-0.6 g of lubricating oil to be detected with 8-12 ml of diethyl ether to obtain a mixed solution; adding 0.15-0.25 ml of concentrated hydrochloric acid and 1.8-2.2 ml of a potassium thiocyanate solution into the mixed solution, oscillating, and standing for 4-6 minutes to generate an iron thiocyanate complex; and measuring the absorbancy of the ether phase by using a portable spectrophotometer, and calculating the content of the ferric iron in combination with a standard curve method. According to the method, laboratory fixing equipment is not needed, detection can be completed within 8-35 minutes, the oil sample dosage is only 0.4-0.6 g, the relative error is smaller than or equal to 2.35%, and the method is adaptive to low / high-viscosity lubricating oil, can be applied on site and in a laboratory and provides accurate data support for equipment operation and maintenance.

The present invention relates to a χ-iron carbide complex, a preparation method therefor and a use thereof. The complex comprises iron carbide and halide ions; the iron carbide includes χ-iron carbide; the halide ions are bromine ions and / or iodide ions; the molar ratio of the χ-iron carbide to the halide ions is 100:(0.1-45); and the number of moles of the χ-iron carbide is based on the number of moles of an iron element contained in the χ-iron carbide. The complex has a monoclinic crystal system structure. The χ-iron carbide complex according to one embodiment of the present invention can be used as a catalyst for a syngas conversion reaction; and by introducing the halide ions, such as bromine ions or iodide ions, to the χ-iron carbide complex, the resulting reaction has a high CO conversion rate and extremely low overall CO2 selectivity, thereby realizing comprehensive optimization of a reaction result.

The invention provides an iron complex, the structural general formula of the iron complex is as shown in formula (I), in the formula (I), R1-R12 are respectively and independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy, nitryl and aryl, X is halogen, and R13 is selected from C3-C7 alkenyl. The iron complex with a specific structure provided by the invention is suitable for being used as a main catalyst of an ethylene oligomerization catalyst. The ethylene oligomerization catalyst using the iron complex as the main catalyst also has high oligomerization reaction activity at a high temperature (more than 60 DEG C), when the oligomerization reaction activity is increased to about 60 DEG C from low to high, the catalytic activity is reduced slowly, and the oligomerization reaction is rapid in initiation, stable in operation and good in repeatability; and when the temperature is higher than 60 DEG C, condensed water can be used as a condensing medium for reaction, so that the energy consumption of a process device is reduced. The invention also provides a preparation method and application of the iron complex, an ethylene oligomerization catalyst and an ethylene oligomerization method.

The application relates to a high-oxygen-permeability hydrogen-containing fluorosulfonic acid resin and a preparation method and application thereof, and belongs to the technical field of electrolyte materials for fuel cells. The application solves the technical problems of poor oxygen permeability and high cost of fluorosulfonic acid resin in the prior art. The preparation method comprises the following steps: polymerizing a norbornene series monomer A and a perfluorovinyl ether monomer B containing sulfonyl fluoride under the initiation of an iron complex, then soaking the obtained sulfonyl fluoride type fluorosulfonic acid resin in an alkaline solution to hydrolyze the -SO2F group into a -SO3X group, and then soaking the obtained sulfonyl fluoride type fluorosulfonic acid resin in an acidic solution to convert the -SO3X group into a -SO3H group, so as to obtain the hydrogen-containing fluorosulfonic acid resin. The preparation method of the hydrogen-containing fluorosulfonic acid resin has the advantages of mild conditions, simple operation, low production cost, good processability of the obtained hydrogen-containing fluorosulfonic acid resin in general solvents, high conductivity, good oxygen permeability and the like, and the hydrogen-containing fluorosulfonic acid resin can be applied as an electrolyte material of a cathode catalyst layer in a proton exchange membrane fuel cell.

The invention discloses a preparation method of a shaddock peel derived carbon nano composite material and application of the shaddock peel derived carbon nano composite material in degradation of antibiotic wastewater, and belongs to the technical field of water treatment and environment-friendly functional materials. The preparation method comprises the following steps: by taking agricultural waste pomelo peel as a carbon source, performing chemical activation and high-temperature pyrolysis to prepare a biochar carrier with a graded pore structure; and by taking a special bidentate phosphine chelated diiron complex (m-dmedt) Fe (CO) as an iron source precursor, carrying out liquid-phase impregnation and in-situ reduction to obtain the high-dispersion loaded zero-valent iron / iron oxide nano composite material. The invention also discloses an application method of the material in treatment of antibiotic wastewater by cooperating with ozone and persulfate. The composite material is large in specific surface area and excellent in adsorption performance, and the problem of nano iron agglomeration can be effectively solved. By constructing an adsorption enrichment-ozone catalysis-persulfate activation three-phase synergistic system, strong oxidation free radicals such as OH and SOs are generated, efficient mineralization of tetracycline and other refractory antibiotics is achieved, and the method has the advantages of being low in cost, high in efficiency, free of secondary pollution and the like.

Provided is a novel hydrosilylation reaction catalyst using inexpensive and abundant iron, which is suitable for use in the silicone industry. An iron complex compound represented by formula (1): (L) FeAn1 (1) [in the formula, n1 is 2 or 3, A is each independently-OR1,-OC (= O) R2, or-NR3R4; r < 1 >, R < 2 >, R < 3 > and R < 4 > are independently alkyl groups which have substituent groups and have 13 to 24 carbon atoms, or-Si (CH3) 2-[OSi (CH3) 2] m-CH3, and m is an integer of 0 to 11; when two of A are-OR1 and R1 is a hydrocarbon group having 13 to 24 carbon atoms and optionally having a substituent, R1 may be linked to each other to form a cyclic structure-O-C (Ra)-O-, and Ra is a hydrocarbon group having 13 to 24 carbon atoms and optionally having a substituent; l represents a tridentate ligand having a specific structure. ].

This application belongs to the field of breaker technology, specifically providing a high-efficiency breaker for oilfields, its preparation method, and its application. A method for preparing a high-efficiency breaker for oilfields includes the following steps: First, persulfate is reacted with a catechol derivative and an iron salt solution by stirring. After separation, washing, and drying, coated microspheres are obtained. Then, a chitosan quaternary ammonium salt coating solution is sprayed onto the surface of the coated microspheres, followed by curing and drying. The breaker prepared by the above method has a core-shell structure with persulfate as the core, a catechol derivative-iron complex as the intermediate layer, and chitosan quaternary ammonium salt as the outermost layer. This breaker not only has high breaker capacity in both high-temperature and medium-low-temperature formations but also has low residue content.

The invention belongs to the field of high-molecular polymers, and particularly relates to a catalyst for green synthesis of a polyester elastomer, the polyester elastomer and a synthesis method and application of the polyester elastomer, the catalyst comprises a main catalyst, a cocatalyst and an auxiliary agent, the main catalyst is an iron-based complex catalyst, the cocatalyst comprises an organic titanium catalyst and an organic zinc catalyst, and the auxiliary agent is a mixture of the main catalyst and the cocatalyst. The auxiliary agent comprises a heat stabilizer. According to the catalyst, an iron-titanium-zinc composite catalyst system is formed by taking an iron-based complex catalyst as a main catalyst and compounding an organic titanium catalyst, an organic zinc catalyst and a heat stabilizer, and shows an excellent catalytic effect in preparation of the polyester elastomer; the molecular weight and comprehensive performance of the product are improved while the reaction conditions are reduced, and the requirements of green chemical development are met.

The application discloses a preparation method of a yeast polysaccharide iron complex and belongs to the technical field of deep processing of yeast. The steps are as follows: after a yeast polysaccharide solution is oxidized by hydrogen peroxide, sodium citrate and an iron salt are added in sequence, and the yeast polysaccharide iron is obtained through a complexation reaction. The yeast polysaccharide iron prepared by the method has an iron content of greater than or equal to 10%, a water solubility of greater than or equal to 90%, good stability and no iron rust smell. The slow-release characteristics of the yeast polysaccharide iron can significantly reduce gastrointestinal irritation, realize sustained release in the stomach, and effectively improve liver iron accumulation and promote the organization utilization and storage of iron.

The present invention relates to a pharmaceutical composition in the form of a single-dose oral solution comprising the iron complex with N-acetyl-L-aspartate casein and calcium folinate pentahydrate as active ingredients. The iron complex with N-acetyl-L-aspartate casein is formulated with ferric iron and complexed N-acetyl-L-aspartic acid and is stored in a cylindrical container in liquid form. The calcium folinate pentahydrate is stored in solid form in the closed storage cap and is kept separately in a sealed manner from the solution which is stored in the container. The container-closed storage cap device allows the mixing of the two active ingredients just before their administration as a single-dose oral solution. The obtained pharmaceutical composition helps to treat both chronic anemia and anemia during pregnancy and lactation.