170 results about "Ferroporphyrin" patented technology

A compound of ferrous L-threonate with structure (I), its compostions and methods useful for iron supplementation for mammals, particularly for human body to improve and treat nutritional iron-deficiency anemia, blood loss anemia and hemolytic anemia.

The invention provides a method for preparing benzaldehyde or substituted benzaldehyde by catalytically oxidizing methylbenzene or substituted methylbenzene and relates to the field of chemical industrial material intermediates. The benzaldehyde or substituted benzaldehyde of a general formula (1) and relevant side products are prepared by using a substance containing ferroporphyrin, derivatives of the ferroporphyrin or relevant load as a catalyst, adding a proper cocatalyst according to requirements, and oxidizing methylbenzene or substituted methylbenzene by using oxygen-containing gases such as oxygen, air and the like. In the method, the reaction is performed at a certain temperature of between 25 and 250 DEG C and pressure of 0.1 to 2 MPa; the using amount of the catalyst is small, and is 1 ppm to 1 mass percent under a non-load condition and 0.1 to 10 mass percent under a load condition; and other solvents are not added, and if necessary, a certain amount of cocatalyst is added. The method has the characteristics of environmental friendliness and simple process.

The invention discloses a composite anti-salt agent, which mainly comprises a ferrocyanide solubilizer A and a complexone B, and can further comprise a polymer lattice modifier C and/or water. According to the present invention, the composite anti-salt agent has a synergistic effect, wherein the ferrocyanide solubilizer A in the composite anti-salt agent can substantially increase the solubility of the salt, and provides the main effect of the composite anti-salt agent, the complexone B in the composite anti-salt agent has good complexation effects on metal ions and can change the metal ion concentration of the salt crystal so as to reduce the solubility product of the salt crystal, and the polymer lattice modifier C can change the compact structure of the salt into the loose structure soas to make the salt be easily carried away by the flowing of the solution. According to the present invention, the composite anti-salt agent can provide excellent salt crystallization prevention effect on salt solutions with highly mineralized sodium chloride, and further can provide good salt release effects on salt solutions with highly mineralized sodium chloride, calcium chloride and magnesiumchloride.

The invention discloses a method for purifying a zinc hydrometallurgy leaching solution. The method is particularly suitable for a zinc sulfate solution or zinc oxide soot sulfate leaching solution obtained after high acid leaching-jarosite (ammonium alum) process iron removal. The method includes the steps that ferroporphyrin in an oxidation solution or a supplement iron source is used for guaranteeing the ferric iron concentration of the solution at first; then seed crystal-lepidocrocite (gamma-FeOOH) slurry is added into a reaction still; afterwards, a zinc sulfate leaching solution with impurities to be removed is added slowly; and meanwhile, a neutralizer is added, the reaction pH value and temperature are controlled, most of ions of ferric iron, arsenic, germanium, fluorine and the like in the solution or all the ions are precipitated, and obtained precipitation sludge is easy to filter and wash. The technological process is simple, and cost is low. Detrimental impurities (like iron, arsenic, fluorine and germanium) generated in the zinc electroanalysis process can be removed, and meanwhile effective enrichment of the germanium is realized, so that the method is suitable for industrialized application.

The invention relates to a double-functional amorphous FeMn-MOF-74 (ferromanganese-metal organic framework-74) nanoflower material and a preparation method and application, and relates to a nanometermaterial and a preparation method and application, which aim at solving the problem of low adsorption capacity of existing MOF-based adsorbent to As(III). The double-functional amorphous FeMn-MOF-74 nanoflower material is prepared by taking 2,5-dihydroxy terephthalic acid as an organic ligand, anhydrous manganese chloride and anhydrous ferrous chloride as metal salt ligands, and N,N-dimethyl formamide and anhydrous ethanol as solvents through a solvothermal method. The preparation method comprises the following steps of 1, preparation of a mixed solution; 2, solvothermal reaction; 3, cleaningand drying. The double-functional amorphous FeMn-MOF-74 nanoflower material is used for removing poisonous metals in water, and oxidizing the poisonous metals in the water. The preparation method canbe used for preparing the double-functional amorphous FeMn-MOF-74 nanoflower material.

The invention belongs to the technical fields of biological engineering and environmental engineering and relates to a Microbacteriumtestaceum with autotrophic denitrification and ferrous iron oxidation functions and an application thereof. The strain disclosed by the invention is Microbacteriumtestaceum W3 with the collection number of CCTCC NO: M2013108. The iron matrix autotrophic denitrification microbacterium strain W3 is screened from a natural environment by adopting a microbial pure culture technology, the preparation of a biological denitrification bacterial agent is realized, and a high-efficient denitrification strain is provided for a biological enhancement system. In waste water treatment, the strain is taken as a biological denitrification enhancement functional strain, waste water denitrification is performed through iron autotrophic denitrification process, and the strain has the advantages of low energy consumption, low investment cost, low operation cost and simple process.

The invention discloses a gold leaching method adopting ferrous ions and magnesium thiosulfate. The gold leaching method is characterized in that a ferrous ion solution and a magnesium thiosulfate solution is added into gold-containing minerals so as to leach out gold in the gold-containing minerals. According to the gold leaching method, oxidative decomposition of Cu(NH3)4<2+> to S2O3<2-> is eliminated, so that the consumption of thiosulfate is greatly reduced; Cu(S2O3)2<3->/Cu(S2O3)3<5-> is prevented from disturbing gold adsorption by resin, the competitive adsorption of Cu(S2O3)2<3->/Cu(S2O3)3<5-> to the gold on the surface of the resin is weakened, the recovery of the gold in a leachate adopting the resin adsorption method is facilitated, and the desorption of the gold-bearing resin can be realized by adopting a simple one-section process; and the addition of ammonia water is avoided, and therefore the threat of NH3 to the atmosphere and the environment of the water body is eliminated. The gold leaching rate of the gold leaching method is equivalent to that of a traditional gold leaching method adopting copper ions, ammonia or thiosulfate, but the gold leaching method solves the problem that in the traditional gold leaching method adopting thiosulfate is high in thiosulfate consumption and unfriendly to the environment, and the recovery of gold from the leachate is difficult.

The invention discloses a preparation method of a b-axial LiFePO4<4>/C nano flake material. The method comprises the following steps: weighing a ferric salt, a phosphoric acid, a lithium salt, ethylene glycol and an ascorbic acid; mixing the ferric salt, the phosphoric acid, the lithium salt, the ethylene glycol and the ascorbic acid and then stirring the mixed solution for 30-60 minutes; and transferring the entire mixed solution into a high pressure reactor for carrying out a solvothermal reaction to obtain a reaction liquid, wherein the ferric salt is any one of ferrous sulfate septihydrate or ferrous chloride; and the lithium salt is any one of lithium hydroxide monohydrate or anhydrous lithium hydroxide; respectively washing and drying the obtained reaction liquid with deionized water and absolute ethyl alcohol to obtain a powdery mixed precursor; controlling the drying temperature to be 60-90 DEGC; and carrying out a thermal treatment on the obtained powdery mixed precursor for 2-4 hours, so as to obtain the b-axial LiFePO<4>/C nano flake material. According to the obtained LiFePO<4>/C nano material, the thicknesses of flaky particles are about 30nm; and the crystal orientation is a (010) crystal plane.

The invention discloses a method for denitration of complexing ferroporphyrin smoke based on supergravity. The method comprises the following steps of feeding desulfurated smoke which is at the temperature of 40 DEG C-120 DEG C and contains NOx into a supergravity machine to carry out countercurrent contact on the smoke and an absorber which is at the temperature of 0 DEG C-55 DEG C and enters into the supergravity machine in a rotor packing layer of the supergravity machine, and reacting for denitration; feeding cleaned smoke into a demister from the air phase outlet of the supergravity machine and then entering into a discharging system; flowing denitrated rich liquor into a balance tank from the liquid phase outlet of the supergravity machine, and then flowing into a settling tank from the balance tank, so that solid in the denitrated rich liquor is settled to the bottom, filting to recover sulfur, and pumping filtrate into the settling tank; pumping out upper clear liquid to be fed into the supergravity machine to be mixed with supplemented a reducer on line, and then flowing into the supergravity machine for circular absorption and denitration. The method provided by the invention has the advantages that supergravity equipment is utilized as gas-liquid mass transfer strengthen equipment; the method is beneficial to removal of NOx, the complexing ferroporphyrin is utilized as the absorber, the absorption efficiency is high, the regeneration effect is good, an absorption liquid is applied in a circulating manner, and the denitration rate is more than 96%.

The invention discloses iron-based prussian blue, and a preparation method and application thereof. The method comprises the following steps: (1) dissolving salt containing ferrous cyanide ions into a deionized water solution to obtain a first salt solution, wherein the content of ferrocyanide ions in the first salt solution exceeds the content of ferrocyanide ions calculated according to the stoichiometric ratio required by the iron-based Prussian blue; (2) dissolving salt containing ferrous ions or manganese ions into a deionized water solution, and adding trisodium citrate to obtain a second salt solution; and (3) pouring the first salt solution into the second salt solution, stirring and standing to obtain a precipitate, and cleaning and drying the precipitate to obtain the iron-based prussian blue. A large amount of Na<+> and Fe(CN)6<4-> are introduced into the precursor solution, the [Fe(CN)6]<4-> vacancy defect and coordination water which are prone to occurring in the product obtained through a coprecipitation method are reduced, the preparation process is simple, and the technical problems that the synthesis condition of iron-based Prussian blue is harsh, the sodium content in the product is low, and the volume is low are solved.

The invention relates to the technical field of preparation of functional materials and restoration of polluted water body in environmental engineering, and especially provides a preparation method ofgreen synthesis of nano zero-valent iron with extraction liquid of nephrolepis auriculata. The method includes the steps of: 1) preparing the extraction liquid of nephrolepis auriculata from nephrolepis auriculata; 2) performing a reaction to the extraction liquid of nephrolepis auriculata with a ferric salt solution or a ferrous salt solution to prepare the green-synthesized nano zero-valent iron. The method is low in cost and simple in extraction process, wherein the extraction liquid has strong reduction capability. The method is simple in process and convenient to carry out, is low in energy consumption and is free of secondary pollution. The nano zero-valent iron has high chromium removal capability. The invention also provides an application of the green-synthesized nano zero-valentiron.

The invention relates to a silver nano triangle protection method based on ferrous ions. The method comprises the following steps that a silver nano triangle sheet is prepared and refrigerated and stored; and a ferrous ion solution is added into the silver nano triangle sheet prepared in the step 1, after sufficient mixing and incubation, centrifuging and washing are conducted, solid precipitatesare dispersed into an aqueous solution again, and a silver nano triangle aqueous solution is obtained. According to the silver nano triangle protection method based on the ferrous ions, the stabilityof a silver nano triangle in a complex system is improved while the silver nano triangle is protected rapidly, easily and conveniently in an environment-friendly mode.

The invention discloses a method for removing titanium and an oxide skin on the alloy surface of titanium. The method comprises the following steps: A1. soaking titanium and an alloy material thereof in a pickling solution; A2. washing titanium and the alloy material thereof with high pressure water or cleaning titanium and the alloy material thereof in an ultrasonic cleaner; A3. putting titanium and the alloy material thereof into a nitric acid and hydrofluoric acid mixed solution for passivation; A4. putting titanium and the alloy material thereof into a borax solution for neutralization, wherein the pH value of the borax solution is not less than 10; A5. washing the neutralized titanium and alloy material thereof with high pressure water; and A6. drying titanium and the alloy material thereof. The pickling solution is prepared by taking sulfuric acid or hydrochloric acid as a pickling medium and adding proper amount of additives including quadri-p-sulfophenyl ferroporphyrin (III) and benzene methanamine. According to the invention, molten alkaline leaching and nitric acid and hydrofluoric acid pickling are not used, and the method has the characteristics of being energy-saving, economical and environment-friendly, and easy to realize industrialization.

The invention discloses a method for measuring a permanganate index with a phenanthroline-ferrous ion color development method. The method comprises the following steps: (1) adding a to-be-measured water sample into a colorimetric tube provided with a plug, adding (1+7) sulfuric acid for acidification, adding a potassium permanganate solution, and shaking uniformly; (2) digesting the water sample in the step (1) under a certain condition and quickly cooling to a room temperature; (3) adding an ammonium ferrous sulfate solution into a digestion solution in the step (2), and shaking uniformly; (4) adding a phenanthroline-sodium acetate aqueous solution into a reaction solution in the step (3) for adjusting the pH (potential of hydrogen) value of a system to be 3-5, and producing a color development reaction; (5) performing absorbance testing on the water sample in the step (4) by zero setting of a reference solution at the wavelength of 510 nm, and calculating the permanganate index of the water sample by a formula IMn=7.666A-0.012, wherein in the formula, IMn is the permanganate index of the water sample and A is the absorbance of the water sample. The measurement method is high in color development reaction selectivity, strong in anti-jamming capability, complete in reaction and simple and convenient to operate.

The invention relates to an amorphous calcium carbonate composite nano-medicine with an effect of inducing ferroptosis of tumor cells and a preparation method of the amorphous calcium carbonate composite nano-medicine, and belongs to the technical field of medicines. After the composite nano-medicine enters the tumor cells, the degradation of nanoparticles is promoted by means of the acidic environment of lysosomes, meanwhile, the lysosomes are subjected to permeabilization to release doxorubicin and ferrous ions through the protonation of dendrimers, wherein ferrous ions can promote the conversion of polyunsaturated fatty acids of cell membranes to lipid peroxides and induce ferroptosis of the tumor cells, and DOX can promote oxidative stress to increase the content of hydrogen peroxide in the cells while inducing apoptosis, so that iron-dependent ferroptosis caused by lipid peroxidation induced by the ferrous irons is further enhanced. The composite nanoparticles can not only increase the therapeutic effect of tumors, but also reduce the side effects caused by chemotherapy.

The invention provides a cyano vacant site enriched ferrum-nickel-based metal-organic frame material represented by a formula (I) shown in the description. The invention further provides a preparationmethod of the cyano vacant site enriched ferrum-nickel-based metal-organic frame material. The method comprises the following steps: A) mixing a NiMoO4 nanorod precursor with a solution of a ferrum-cyanide complex, and carrying out a reaction, so as to obtain a ferrum-nickel-based metal-organic frame material, wherein the solution of the ferrum-cyanide complex is a potassium ferricyanide solution, a sodium ferricyanide solution, a potassium ferrocyanide solution or a sodium ferrocyanide solution; B) subjecting the ferrum-nickel-based metal-organic frame material to plasma knockout, thereby obtaining the cyano vacant site enriched ferrum-nickel-based metal-organic frame material represented by the formula (I). According to the cyano vacant site enriched ferrum-nickel-based metal-organic frame material and the preparation method and application thereof, the cyano vacant site enriched ferrum-nickel-based metal-organic frame material has excellent electrochemical oxygen production catalyzing performance.

A composition for promoting the human hematopoietic function, nourishing blood and making human body stronger is proportionally prepared from ferroheme, SOD powder and folic acid powder.

The invention provides a detection method for mitochondria damages of nasopharynx mucosae cells. The detection method comprises the following detection steps: taking nasopharynx seepage; putting the nasopharynx seepage into a sampling bottle which is prefilled with a buffering solution and uniformly mixing; adding 1ml of a reagent A and 1ml of a reagent B into the sample bottle in sequence; uniformly mixing and observing the color change within two minutes; and comparing a detection result with a colorimetric plate. The detection method is simple and rapid and can be used for detecting the result that the concentration of the lowest free ferrous protoporphyrin can be up to 5ng/ml; the sensitivity is very high.

The invention provides iron supplementing soft sweets and a preparation method thereof. The soft sweets are prepared from extract of angelica sinensis, astragalus extract, ferroporphyrin, maltitol, carrageenan, agar, citric acid, malic acid and fruit juice. The preparation method of the iron supplementing soft sweets comprises the following steps: after swelling the agar, adding water to boil out and melt to obtain an agar solution; adding water into isomaltose hypgather to boil out and melt to obtain an isomaltose hypgather solution; adding water into the carrageenan to dissolve to obtain a carrageenan solution; then mixing the agar solution, the isomaltose hypgather solution and the carrageenan solution to form syrup; then adding the extract of angelica sinensis, the astragalus extract, the ferroporphyrin, the citric acid, the malic acid and the fruit juice into the syrup, uniformly stirring, forming, drying and packaging to obtain the iron supplementing soft sweets. The iron supplementing soft sweets provided by the invention have high stability, are difficult to generate water and have good taste, elasticity and good chewiness.

The invention discloses a preparation method of a magnetic nucleus covered potassium titanium hexacyanoferrate adsorbent and a product as well as application. According to the magnetic nucleus covered potassium titanium hexacyanoferrate adsorbent and the product as well as the application, the surface of Fe3O4 magnetic powder is first covered with a complete SiO2 protective layer by adopting a two-step reaction method, so that Fe3O4 is difficult to dissolve out in an acidic solution; subsequently, a transitional covering layer TiO2 is prepared under the action of a high temperature, high pressure and vapor by adopting a method of tetrabutyl titanate/alcohol solution immersion and gaseous phase hydrolysis; a Ti<4+> homogeneous-phase hydrolytic action easily occurring in the solution is overcome; the loading capacity and the bonding strength of the TiO2 are improved; finally, potassium ferrocyanide is enabled to react with a TiO2 layer by adopting a method of a surface reaction of a solution phase, a component of a generated active potassium titanium hexacyanoferrate absorbent is enabled to firmly grow on the surface of a magnetic nucleus, and a magnetic nucleus covered potassium titanium hexacyanoferrate caesium-removing adsorbent with magnetism is prepared. Measured through a test, the absorbent has a favorable adsorption removal characteristic to Cs<+>, and is suitably applied to the removal of a radioactive waste liquid, which is smaller in scale and is further strong in dispersity, of a nuclear power plant by adopting a sequencing batch type dynamic adsorption reactor mode.

The invention discloses an antibacterial iron sulfide water agent. The antibacterial iron sulfide water agent is a mixed solution of ferrous iron and polysulfide, wherein the molar ratio of Fe to S is1: 1-1: 5. The antibacterial iron sulfide water agent is prepared by the following steps of: dissolving iron sulfide mineral substances in an aqueous solvent to obtain a solution A, wherein the solidiron sulfide comprises native copper, pyrite, nano iron sulfide FeS2, Fe7S8, Fe1-xS and Fe3S4, and x is 0.1-0.2; and centrifuging the solution A, and taking the supernatant to obtain the antibacterial iron sulfide water agent. The invention also discloses the application of the antibacterial iron sulfide water agent in resisting bacteria and preparing drugs for infectious diseases caused by bacterial infection. The iron sulfide water agent is simple in preparation, stable in properties, good in biocompatibility, colorless and tasteless, long in antibacterial effect period, easy to control andlow in price, can be used for killing in-vivo cells and in-vivo sterilization, and is a high-efficiency low-degree broad-spectrum antibacterial material.

The invention discloses a method for synthesizing an alpha, beta-unsaturated nitroolefin derivative in one pot by using ammonium iodide as a nitryl source. Reaction of an alkenes compound is carried out in an acetonitrile solution system containing tetra-arylated ferroporphyrin (III), ammonium iodide and tert-butyl hydroperoxide in one pot to generate the alpha, beta-unsaturated nitroolefin derivative. According to the method, the high-yield synthesis of the alpha, beta-unsaturated nitroolefin with high E stereoselectivity is realized under a mild reaction condition.