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67 results about "Titanium atom" patented technology

In the periodic table of elements, Titanium is atomic number 22, meaning that an atom of titanium has 22 protons in its nucleus. By definition, atoms have no overall electrical charge, therefore they have an equal number of protons and electrons.

Method for producing catalyst for olefin polymerization

It is intended to provide a method for producing a catalyst for olefin polymerization which exhibits excellent catalytic activity in a polymerization treatment and permits production of a polymer excellent in stereoregularity, melt flowability, etc., even when the polymerization catalyst is prepared in an inert gas atmosphere by using a solid catalytic component comprising an electron-donating compound other than a phthalic acid ester. The method for producing a catalyst for olefin polymerization comprises performing a pre-contact treatment of bringing a solid catalytic component (A) comprising a magnesium atom, a titanium atom, a halogen atom and an electron-donating compound having no phthalic acid ester structure, a specific organoaluminum compound (B) and an external electron-donating compound (C) into contact with each other at a temperature of lower than 15° C. for a time of 30 minutes or shorter in the absence of the olefin.
Owner:TOHO TITANIUM CO LTD

Titanate coupling agent modified perfluoropolyether compound, preparation method thereof and anti-fingerprint agent

The invention discloses a titanate coupling agent modified perfluoropolyether compound, a preparation method thereof and an anti-fingerprint agent, and belongs to the field of surface treating agents. The preparation method comprises the following steps: adding a titanate coupling agent into a mixed solution of water and absolute ethyl alcohol, and hydrolyzing to obtain a hydroxylated titanate coupling agent; the hydroxylated titanate coupling agent and perfluoropolyether siloxane are subjected to a condensation reaction to obtain the perfluoropolyether siloxane modified hydroxylated titanate coupling agent. Titanium atoms are introduced into the perfluoropolyether siloxane, so that the anti-fingerprint agent is endowed with excellent bacteriostatic and bactericidal effects during application, meanwhile, the interfacial compatibility and adhesive force between the perfluoropolyether siloxane and the surface of a base material are improved, and the performance and mechanical strength of a film layer of the anti-fingerprint agent are enhanced.
Owner:HUNAN TIANFU NEW MATERIAL CO LTD

Phosphorus-titanium polyester catalyst as well as preparation method and application thereof

PendingCN120271803APolymer sciencePtru catalyst
The invention discloses a phosphorus-titanium polyester catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation. The structural general formula of the phosphorus-titanium polyester catalyst is # imgabs0, wherein R1 is selected from any one of hydroxyl, C1-C12 aliphatic alkoxy or aromatic alkoxy; and R2 is selected from C2-C12 aliphatic alkyl groups. The preparation method of the catalyst comprises the following steps: reacting dihalogenated phosphite ester with dihydric alcohol, and further reacting the obtained product with organic phthalic ester to prepare the phosphorus-titanium polyester catalyst. Starting from a molecular structure, a chelate ring structure which takes a titanium atom as a center and simultaneously contains two phosphorus and titanium elements is constructed through molecular design, the chelate ring structure is stable, and the coordination and electronegativity of the central titanium atom in the catalyst can be effectively adjusted; therefore, the problems of poor catalytic stability and hydrolysis resistance of a titanium catalyst in the prior art are effectively solved, and the quality of a polyester product is effectively improved.
Owner:CHINA TIANCHEN ENGINEERING CORPORATION LTD

Nanocomposite for wastewater treatment

A method of remediating a contaminated aqueous medium includes contacting the aqueous medium with an amount of a particulate nanocomposite material that contains elemental carbon (C); an orthorhombic titanium dioxide (TiO2); a tetragonal TiO2 crystalline phase; a cubic cadmium oxide (CdO) crystalline phase; a hexagonal magnesium titanate (MgTiO3) crystalline phase; and, an orthorhombic magnesium titanate oxide (Mg0.6Ti2.4O5). Based on the total number of atoms in the nanocomposite material and as determined by energy dispersive X-ray spectroscopy, the nanocomposite material has an atomic concentration of carbon (C) of from about 1 atomic percent (at. %) to about 5 at. %; an atomic concentration of magnesium (Mg) of from about 5 to about 15 at. %; an atomic concentration of titanium (Ti) of from about 15 to about 30 at. %; and, an atomic concentration of cadmium (Cd) of from about 1 to about 10 at. %.
Owner:IMAM MOHAMMAD IBN SAUD ISLAMIC UNIV

Method for enriching zirconium, lithium and titanium elements from coal gangue and / or fly ash and application thereof

The invention provides a method for enriching zirconium, lithium and titanium elements from coal gangue and / or fly ash, which comprises the following steps: S1, taking coal gangue and / or fly ash, adding a gelatinizing agent, mixing, roasting, washing with water, and adding dilute acid to prepare gel I; s2, adding a treating agent into coal gangue and / or fly ash, roasting, and adding water for washing to form slurry I; s3, adding the slurry I into the gel I, stirring, reacting, layering and separating to obtain gel II and slurry II; s4, the gel II is subjected to acid pickling with an acid pickling solution and separated, and filtrate containing zirconium, lithium and titanium elements and gel III are obtained; and S5, extracting the filtrate by using an organic solvent, and carrying out back extraction on an organic phase by using an acid solution to obtain a solution containing zirconium, lithium, titanium and other element atoms, thereby realizing enrichment of zirconium, lithium and titanium elements. In the technological process, all raw materials and reagents can be recycled, pollution is avoided, the cost is low, and the separation recovery rate is high.
Owner:LIUPANSHUI NORMAL UNIV

Cutting tool

PCT designated stageWO2025248671A1Milling cuttersWorkpiecesCrystal structureSilicon
A cutting tool comprising a base material and a coating film disposed on the base material, wherein: the coating film includes a first layer; the first layer is formed of a plurality of hard particles; the hard particles are each formed of titanium, silicon, carbon, and nitrogen; the hard particles have a cubic crystal structure; the first layer has a columnar structure; in the first layer, the average of the ratio NSi / (NTi+NSi) of the number NSi of silicon atoms with respect to the total of the number NTi of titanium atoms and the number NSi of silicon atoms is 0.01-0.10; in the first layer, the average of the ratio NC / (NC+NN) of the number NC of carbon atoms with respect to the total of the number NC of carbon atoms and the number NN of nitrogen atoms is 0.60-0.85; the hard particles each have a laminate structure in which a first unit layer and a second unit layer are alternately laminated; the first unit layer and the second unit layer are each formed of the titanium, the silicon, the carbon, and the nitrogen; the ratio x1 of the number of silicon atoms with respect to the total of the number of titanium atoms and the number of silicon atoms in the first unit layer is greater than the ratio x2 of the number of silicon atoms with respect to the total of the number of titanium atoms and the number of silicon atoms in the second unit layer; and the ratio y1 of the number of carbon atoms with respect to the total of the number of carbon atoms and the number of nitrogen atoms in the first unit layer is greater than the ratio y2 of the number of carbon atoms with respect to the total of the number of carbon atoms and the number of nitrogen atoms in the second unit layer.
Owner:SUMITOMO ELECTRIC INDUSTRIES LTD

Copper-titanium-based aluminum oxide grinding wheel and preparation method and application thereof

The invention relates to the technical field of grinding wheels, in particular to a copper-titanium-based aluminum oxide grinding wheel and a preparation method and application thereof. The preparation method comprises the following steps: mixing the aluminum oxide grinding material, the metal binding agent and the auxiliary binding agent to obtain a mixture; carrying out cold press molding on the mixture to obtain a green body; and sintering the green body to obtain the copper-titanium-based aluminum oxide grinding wheel. The metal binding agent comprises Cu powder, Ti powder, Nd powder and Y powder according to the mass ratio of (58-80): (20-40): (1-4): (1-4). The aluminum oxide grinding material reacts with titanium atoms in the metal binding agent to generate a titanium oxide compound and a copper-aluminum oxide compound, the holding effect of the metal matrix on aluminum oxide can be improved, the self-sharpening performance of the grinding wheel is improved, and the grinding efficiency of the grinding wheel is improved. And the Nd powder and the Y powder can effectively reduce the residual stress during sintering, inhibit hot cracks at the interface of the matrix and the aluminum oxide, and also can be used as a second phase to improve the strength of the copper-titanium matrix and improve the wear resistance of the aluminum oxide grinding wheel.
Owner:NORTHEASTERN UNIV CHINA

Alcohol modified TS-1 catalyst as well as preparation method and application thereof

The invention discloses an alcohol modified TS-1 catalyst as well as a preparation method and application thereof, and belongs to the technical field of molecular sieve catalysts. The alcohol modified TS-1 catalyst is prepared by the following steps: preparing a mixed solution from SiO2, 0.04 TiO2, 0.30 TPAOH, 50 H2O and nMOH according to the molar ratio of SiO2: 0.04 TiO2: 0.30 TPAOH: 50 H2O: nMOH; carrying out hydrothermal reaction on the mixed solution to obtain the alcohol modified TS-1 molecular sieve catalyst in one step; the preparation method is simple, the crystallization rate of the molecular sieve is increased by adding alcohols, more titanium atoms can be promoted to enter a skeleton, formation of a Ti-OOH active intermediate is facilitated, and generation of non-active anatase is reduced; the TS-1 molecular sieve is high in crystallinity and shows relatively high activity and alkylene oxide selectivity in a long-chain olefin epoxidation reaction.
Owner:LUAN CHEMICAL GROUP CO LTD +1

Solid electrolyte-electrode assembly, method for producing same, solid electrolyte, method for producing active material, and solid electrolyte battery

The present invention addresses the problem of providing a method for producing a solid electrolyte-electrode assembly capable of reducing interface resistance by making it unlikely for a gap to exist at the interface between a solid electrolyte and an electrode. This method for producing a solid electrolyte-electrode assembly according to the present invention involves incorporating a lithium-ion compound into an amorphous metal oxide-forming composition when forming a solid electrolyte, and comprises: a step for preparing an amorphous metal oxide-forming composition by reacting a metal compound containing a titanium atom and an acid compound selected from the group consisting of peroxo acids, and preparing a metal oxide precursor solution which has an acid as a ligand; and a solid electrolyte-electrode assembly-forming step for contacting mist or vapor comprising the amorphous metal oxide-forming composition to the surface of a substrate heated to 150-700°C, and forming a solid electrolyte-electrode assembly comprising the amorphous metal oxide on the surface of the substrate.
Owner:AMAYA CO LTD +2

Cutting tool

A cutting tool, comprising a substrate and a coating,wherein the coating comprises a first layer consisting of multiple hard particles,in the first layer, NSi / (NTi+NSi) is 0.01 or more and 0.10 or less, and NC / (NC+NN) is 0.60 or more and 0.85 or less,the hard particles have a stacked structure in which first unit layers and second unit layers are stacked alternately,the ratio of the number of silicon atoms to the sum of the number of titanium atoms and the number of silicon atoms in the first unit layers, x1, is higher than that of in the second unit layers, x2, andthe ratio of the number of carbon atoms to the sum of the number of carbon atoms and the number of nitrogen atoms in the first unit layers, y1, is higher than that of in the second unit layers, y2.
Owner:SUMITOMO ELECTRIC INDUSTRIES LTD

Type II hydrotreating catalyst for hydrocarbon oil and method for hydrotreating hydrocarbon oil

Hydrotreating catalyst material and / or hydrotreating catalyst particles are provided having at least two hydrotreating metal components and a chelating agent carried on a support. The support comprises an inorganic oxide binder and a post-framework modified ultra-stable Y-type (USY) zeolite in which a portion of aluminum atoms constituting a zeolite framework thereof is substituted with zirconium atoms and / or titanium atoms and / or hafnium atoms. The hydrotreating metal components form a metal complex via the chelating agent, and are carried on said support as chelating complex type II active sites.
Owner:SAUDI ARABIAN OIL CO +2

Window, display device including the same, and electronic device including the same

A display device includes a display panel which is foldable with respect to at least one folding axis, and a window disposed on the display panel. The window includes a base layer, and a hard coating layer disposed on the base layer, and the base layer includes an ester-based polymer and contains a silicon atom or a titanium atom.
Owner:SAMSUNG DISPLAY CO LTD

Developing apparatus, process cartridge, and electrophotographic image forming apparatus

A developing apparatus including: a toner configured to have toner particle and external additive; a toner carrying member configured to carry the toner; and an charge injection member configured to inject electric charge into the toner, in which the external additive contain titanium atom-containing fine particles containing a compound containing titanium atoms, a presence ratio of the titanium atoms is 0.05 to 4.00 atomic % when a surface of the toner is measured using X-ray photoelectron spectroscopy, the toner carrying member is a developing roller having a substrate having a conductive outer surface and a resin layer on the outer surface of the substrate, impedance of the developing roller measured under specific conditions is 1.00×106 Ω or more, and a maximum value of a surface potential measured under specific conditions is less than 20.0 V.
Owner:CANON KK

A flux-cored welding wire containing surface-aluminum-coated titanium carbide particles

The present invention belongs to the field of welding materials, specifically a flux-cored wire containing surface-aluminum-plated titanium carbide particles. It includes an outer skin and a flux core, and the chemical composition and dosage of the flux core are calculated by mass percentage as follows: surface-aluminum-plated titanium carbide particles 8.0%-12.0%, aluminum powder 2.0%-3.0%, chromium powder, molybdenum powder and nickel powder 16%-20% in total, and the mass ratio of chromium powder, molybdenum powder and nickel powder is 52:96:59, ferrosilicon powder 3.0%-5.0%, ferromanganese powder 4.2%-5.8%, ferrovanadium powder 2.8%-4.0%, fluorite powder 3.2%-5.0%, rutile powder 2.8%-4.0%, calcium carbonate powder 3%-5%, and the rest is iron powder. The titanium atoms and iron atoms of the titanium carbide particles of the present invention form metallic bonds and produce a strong bond, and the time taken for the deposited metal to wear 0.5mm is increased to 1.5 times the original time, effectively improving the wear resistance of the deposited metal.
Owner:ZHENGZHOU UNIV

Emulsified composition and cosmetic material

The present invention is an emulsified composition, including: (A): a titanium-atom-containing silicone resin; (B): one or more oil agents selected from the group consisting of a hydrocarbon oil, an ester oil, and a silicone oil, the oil agent being able to dissolve the component (A) and being liquid at 25° C.; and (C): water, where the emulsified composition contains no surfactant. Accordingly, an object of the present invention is to provide: an emulsified composition having excellent stability and usability without a surfactant; and a cosmetic material including the above emulsified composition and having excellent feeling of use.
Owner:SHIN ETSU CHEMICAL CO LTD

Preparation method of lithium titanate material and lithium titanate battery containing lithium titanate material

The invention discloses a preparation method of a lithium titanate material and a lithium titanate battery containing the lithium titanate material, and the preparation method comprises the following steps: (1) mixing lithium titanyl oxalate and ammonium titanyl oxalate in water, and carrying out spray drying granulation to obtain ammonium titanyl oxalate double salt; and (2) sintering the obtained lithium titanyl ammonium oxalate double salt to obtain the lithium titanate material. The lithium titanate material is prepared by sintering the compound containing both titanium and lithium in molecules, and titanium atoms and lithium atoms are uniformly mixed in the molecular-level size, so that the lithium titanate material obtained after high-temperature decomposition has more ideal distribution uniformity of lithium and titanium elements; moreover, after the decomposition reaction, except the lithium titanate, other byproducts are gas, and high-purity lithium titanate can be obtained.
Owner:HUZHOU YONGXING LITHIUM BATTERY TECH CO LTD +1

Flux-cored wire containing surface aluminized titanium carbide particles

The invention belongs to the field of welding materials, and particularly relates to a flux-cored wire containing surface aluminized titanium carbide particles. Comprising an outer skin and a flux core, and the flux core comprises, by mass, 8.0%-12.0% of surface aluminized titanium carbide particles, 2.0%-3.0% of aluminum powder, 16%-20% of chromium powder, molybdenum powder and nickel powder, 3.0%-5.0% of silicon iron powder, 4.2%-5.8% of ferromanganese powder, 2.8%-4.0% of ferrovanadium powder, 3.2%-5.0% of fluorite powder, 2.8%-4.0% of rutile powder, 3%-5% of calcium carbonate powder and the balance iron powder, wherein the mass ratio of the chromium powder to the molybdenum powder to the nickel powder is 52: 96: 59. Titanium atoms and iron atoms of the titanium carbide particles can form metal bonds to generate firm combination, the time for abrasion of deposited metal by 0.5 mm is prolonged to 1.5 times of the original time, and the abrasion resistance of the deposited metal is effectively improved.
Owner:ZHENGZHOU UNIV

Laminate and method for manufacturing laminate

The present invention provides: a laminate which is excellent in terms of adhesion after immersion in a plating solution; and a method for manufacturing the laminate. A laminate according to the present invention comprises: a base material; a metal oxide layer that contains a first metal atom which is selected from the group consisting of a titanium atom, a zirconium atom, and an aluminum atom; and a metal layer X that is disposed adjacent to the metal oxide layer and contains a second metal atom which is different from the first metal atom. The thickness of the metal oxide layer is 50-2,000 nm.
Owner:FUJIFILM CORP

Catalyst for fuel cell, method for producing the same, electrode catalyst layer, membrane electrode assembly, and solid polymer fuel cell

The fuel cell catalyst of the present application is a rutile-type oxide containing oxygen atoms, nitrogen atoms, and transition metal atoms and having a fiber shape. The transition metal atoms are at least one selected from the group consisting of titanium atoms, tantalum atoms, niobium atoms, and zirconium atoms. When M represents the transition metal atoms, the fuel cell catalyst is represented by the chemical formula MO x N y . The x in the chemical formula satisfies x = 2 - (y + j) (j ≥ 0).
Owner:HIROSAKI UNIVERSITY +1

Multi-layer PVD composite coating applied to the cutting tools

The subject of the invention is a multi-layer composite coating which is applied to machining tools using the PVD process and which consists of the adhesion layer (13) applied to the substrate (12) and at least one functional layer (14) as well as the metal oxide layer (15), wherein: - the adhesion layer (13) consists of titanium nitride (TiN), which has the following components in its formulation composition: 50% atomic Ti and 50% atomic N - the functional layer consists of 14 alternating layers of metal nitrides: CrN, AlN and AlCrTiBN, which have the following components in their formulation: - CrN with 50% atomic Cr and 50% atomic N - AlN with 50% atomic Al and 50% atomic N - AlCrTiBN with 30% - 35% atomic Al, 6% - 10% atomic Cr, 3% - 8% atomic Ti, 6% - 10% atomic B and 45% - 47% atomic N - the layer of metal oxides (15) consists of the mixture of metal oxide nitride AlCrTiB-ON, which has the following components in its formulation: - 30% - 35% Atomic Al - 6% - 10% atomic Cr - 3% - 8% Atomic Ti - 6% - 10% Atomic B - 17% - 20% Atomic O - 20% - 35% atomic N
Owner:BRYK SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ +1

Hydrocracking catalyst, preparation method and use method thereof

A hydrocracking catalyst comprises an active cracking carrier. The active cracking carrier comprises a post-modified zeolite framework in which aluminum atoms are replaced by zirconium atoms and titanium atoms; wherein: a portion of the zirconium atoms are substituted in the post-modified zeolite by 4 coordination; a part of zirconium atoms are grafted to the post-modified zeolite through 5 coordination; and titanium atoms are substituted in a post-modified zeolite skeleton through 4 coordination.
Owner:SAUDI ARABIAN OIL CO +1

Compound, thin-film forming raw material, thin-film, and method of producing thin-film

A compound is represented by the following general formula (1), a thin-film forming raw material including the compound, a thin-film, and a method of producing a thin-film:wherein R1 to R4 each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, R5 and R6 each independently represent an alkyl group having 1 to 5 carbon atoms, A represents an alkanediyl group having 1 to 5 carbon atoms, L represents a group represented by the general formula (L-1) or (L-2) described herein, and M represents a hafnium atom, a zirconium atom, or a titanium atom, provided that in a case of a compound in which R5 and R6 each represent a methyl group, A represents an alkanediyl group having 2 carbon atoms, and M represents a titanium atom, L represents a group represented by the general formula (L-2).
Owner:ADEKA CORP

A hydrocracking catalyst, its method of making, and method of use

A hydrocracking catalyst comprises an active cracking support. The active cracking support comprises a post-modified zeolite framework having zirconium atoms and titanium atoms substituting for aluminum atoms; wherein: a portion of the zirconium atom are substituted in the post-modified zeolite via 4-coordination; a portion of the zirconium atom are grafted to the postmodified zeolite via 5-coordination; and the titanium atoms are substituted in the post-modified zeolite framework via 4-coordination.
Owner:SAUDI ARABIAN OIL CO +2

Hydrocarbon oil hydrocracking catalyst containing titania binder and phosphorus active component, method for producing hydrocracking catalyst, and method for hydrocracking hydrocarbon oil

A hydrotreating catalyst is provided in which one or more phosphorus components are supported on a composite support of a titanium-supported binder component and a post-treated, skeletal-modified, ultrastable Y-type (USY) zeolite. The support comprises a titanium-supported binder component and a post-treated, skeletal-modified, ultrastable Y-type (USY) zeolite in which some of the aluminum atoms constituting the zeolite framework have been replaced with zirconium atoms and / or titanium atoms and / or hafnium atoms. Active components, including a phosphorus active component and one or more hydrocracking metal active components, are supported on the support.
Owner:SAUDI ARABIAN OIL CO +2

Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

An electrophotographic photosensitive member includes an electroconductive support, a photosensitive layer, and a protection layer The protection layer comprises an electroconductive particle with has a surface containing a titanium oxide and a niobium atom. An atomic concentration ratio of the niobium atom to the titanium atom in the titanium oxide is 0.01 to 0.20, and the electroconductive particle is surface-treated with a compound having a silicon atom. A content ratio of the electroconductive particle in the protection layer is 5 vol % or more and less than 40 vol % with respect to a total volume of the protection layer, and relative concentrations of a plurality of atoms at a surface of the protection layer satisfy specific conditions, as determined by X-ray photoelectron spectroscopy.
Owner:CANON KK

Electrically conductive dynamic sealing element, its manufacturing method and sealing system

The invention relates to a dynamic sealing element configured to establish a mobile and electrically conductive contact between a first member and a second member, at least one of which is mobile, a sealing system configured to transfer an electrical current, and a manufacturing method of the dynamic sealing element.The dynamic sealing element (1) comprises:a sealing body (1a) comprising an electrically conductive polymer composite, at least on an outer surface thereof intended to face the at least one mobile member;an interlayer (3) comprising a first sublayer (31) of titanium and a second sublayer (32); anda coating layer (2) directly contacting the second sublayer (32),wherein the coating layer (2) is based on a titanium-doped diamond-like carbon having a fixed concentration of titanium atoms of between 5% and 50%, andwherein the second sublayer (32) is a gradient layer of titanium-doped diamond-like carbon having a varying concentration of titanium atoms decreasing across a thickness of the second sublayer (32).
Owner:HUTCHINSON SA

Deformable high-strength aluminum alloy compositions and methods of making the same

PendingUS20260152827A1CobaltMetal
An alloy comprising 92 at % aluminum, 2 at % titanium, 2 at % iron, 2 at % cobalt, and 2 at % nickel. A method of making an alloy is disclosed. The method contains the steps of providing particles of desired composition, utilizing a selective leaser melting (SLM) apparatus producing a first layer of the particles on a substrate and melting and solidifying a first group selected areas of the layer of particles, wherein the melting and the solidification results in an alloy of desired composition, containing intermetallic lamellae and has thickness equal to thickness of the first layer. The process is repeated to produce an object of specified thickness and shape containing the melted and solidified areas.
Owner:PURDUE RES FOUND

Coated cutting tool

A coated cutting tool has a base material and a hard coating film on the base material. The hard coating film is a nitride or carbonitride, and the nitride or carbonitride contains titanium (Ti) in an amount of 60-95 at% and silicon (Si) in an amount of 5-40 at% with respect to the total amount of the metal including the semimetal. The hard coating film satisfies the relationship 1.1 < B / A, where A represents the atomic ratio (at%) of the metal elements including the semimetal and B represents the atomic ratio (at%) of nitrogen, when the total of the metal elements including the semimetal and the non-metal elements is 100 at%. The crystal structure of the hard coating film is a cubic crystal, and the half-peak width of the (200) plane of the cubic crystal in X-ray diffraction is from 0.75 DEG to 1.10 DEG (inclusive).
Owner:MOLDINO TOOL ENG LTD

Preparation method of nano titanium silicalite molecular sieve

The invention discloses a preparation method of a nano titanium silicalite molecular sieve, and belongs to the technical field of nano molecular sieve preparation, the preparation method comprises the following steps: adding a titanium source, a silicon source and a template agent into a supercritical crystallization reaction kettle, heating, stirring, and carrying out a melting reaction on the raw materials to obtain a seed crystal mixed material; introducing absolute ethyl alcohol into the seed crystal mixed material obtained by the melting reaction, heating, stirring, and carrying out crystallization reaction to obtain a reaction product; and cooling, washing, drying and roasting the crystallization reaction product to obtain the nano titanium silicalite molecular sieve. According to the invention, a melting reaction technology and a supercritical crystallization reaction technology are introduced into the preparation of the nano titanium silicalite molecular sieve for the first time. The method disclosed by the invention has the advantages of short crystallization time, no generation of wastewater and high content of framework tetra-coordinated titanium atoms, and the prepared nano titanium silicalite molecular sieve is small in grain size, uniform in dispersion and large in specific surface area.
Owner:YANCHENG INST OF TECH

Extra-large pore molecular sieve ZEO-1, its synthesis and use

Provided are a ZEO-1 silicate molecular sieve having a new structure, a synthesis method therefor and the use thereof. An X-ray powder diffraction feature, a pore channel system and a topology feature of the ZEO-1 molecular sieve are characterized. Further, titanium atoms are successfully introduced in the framework of the ZEO-1 molecular sieve. The ZEO-1 molecular sieve of the present invention has a good thermal stability and can be used as an adsorbent or a catalyst.
Owner:JILIN JINOBEL SCI & TECH INNOVATION CO LTD