Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
575 results about "Sulphur compound" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Process for removing mercury from flue gases
InactiveUS6878358B2Reduce operating costsSmall amountUsing liquid separation agentChemical/physical processesPower stationCombustion
Process for removing mercury from flue gases of high-temperature plants, in particular power stations and waste incineration plants in which a bromine compound is fed to the multistage furnace and/or the flue gas in a plant section downstream of the furnace, the temperature during contact of the bromine compound with the flue gas being at least 500° C., preferably at least 800° C. The combustion is carried out in the presence of a sulphur compound, in particular sulphur dioxide. Subsequently to the furnace, the flue gas is subjected to an optional multistage cleanup for removing mercury from the flue gas, which cleanup comprises a wet scrubber and/or a dry cleanup.
Owner:BROMERC
Multi-piece solid golf ball
InactiveUS7086969B2Improve spin performanceIncrease total distance traveledGolf ballsSolid ballsPtru catalystSulphur compound
In a multi-piece solid golf ball comprising a solid core consisting of a center core and an outer core, an inner cover layer and an outer cover layer, the solid core is molded from a rubber composition comprising a base rubber composed of (a) a polybutadiene having a high cis-1,4 content, a minimal 1,2 vinyl content and a viscosity η of up to 600 mPa·s at 25° C. as a 5 wt % toluene solution, being synthesized using a rare-earth catalyst, in combination with (b) another diene rubber, (c) an unsaturated carboxylic acid, (d) an organosulfur compound, (e) an inorganic filler, and (f) an organic peroxide; and the center core has a specific JIS-C hardness on its center and a specific JIS-C hardness on its surface and the certain difference, the outer core is harder than the surface hardness of the center core, the cross-sectional hardness of 1 mm outside from the border between the center core and the outer core is a specific range on JIS-C hardness, the surface of the outer core has a specific JIS-C hardness, the inner cover layer has a specific Shore D hardness; the outer cover layer has a specific Shore D hardness; and the outer cover layer has a lower Shore D hardness than the inner cover layer. This combination of features gives the ball a good, soft feel upon impact and an excellent spin performance that provides increased distance.
Owner:BRIDGESTONE SPORTS
Production of low sulfur syngas from natural gas with C4+/C5+ hydrocarbon recovery
Sour natural gas is processed to remove the sulfur compounds and recover C4+ / C5+ hydrocarbons by scrubbing the gas with an amine solution to remove most of the sulfur, followed cooling the gas to remove C4+ / C5+ hydrocarbons and more sulfur compounds as liquid condensate to produce a gas having less than 20 vppm of total sulfur. The condensate is sent to a fractionator to recover the C4+ / C5+ hydrocarbons. The sulfur and hydrocarbon reduced gas is contacted first with zinc oxide and then nickel, to produce a gas having less than 10 vppb of total sulfur which is passed into a synthesis gas generating unit to form a very low sulfur synthesis gas comprising a mixture of H2 and CO. This synthesis gas is useful for hydrocarbon synthesis with increased life of the hydrocarbon synthesis catalyst and greater hydrocarbon production from the hydrocarbon synthesis reactor. Contacting the synthesis gas with zinc oxide further reduces the sulfur content to below 3 vppb.
Owner:EXXON RES & ENG CO
Method for extraction of organosulfur compounds from hydrocarbons using ionic liquids
InactiveUS7001504B2Reduce hydrocarbon contentReduce sulfur contentTreatment with plural serial refining stagesHydrocarbon oils refiningPartial oxidationOrganosulfur compounds
A process for the removal of organosulfur compounds from hydrocarbon materials is disclosed. The process includes contacting an ionic liquid with a hydrocarbon material to extract sulfur-containing compounds into the ionic liquid. The sulfur-containing compounds can be partially oxidized to sulfoxides and/or sulfones prior to or during the extraction step.
Owner:EXTRACTICA
Method for desulfurizing a fuel for use in a fuel cell power plant
A fuel processing system is operable to remove substantially all of the sulfur present in an undiluted hydrocarbon fuel stock supply used to power a fuel cell power plant in a mobile environment, such as an automobile, bus, truck, boat, or the like, or in a stationary environment. The power plant hydrogen fuel source can be gasoline, diesel fuel, naphtha, light hydrocarbon fuels such as butane, propane, natural gas, or other like fuels which contain relatively high levels of organic sulfur compounds such as mercaptans, sulfides, disulfides, and the like. The undiluted hydrocarbon fuel supply is passed through a nickel desulfurizer bed wherein essentially all of the sulfur in the organic sulfur compounds react with the nickel reactant, and are converted to nickel sulfide while the desulfurized organic remnants continue through the remainder of the fuel processing system. The system does not require the addition of steam or a hydrogen source to the fuel stream prior to the desulfurizing step. The system operates at relatively low temperatures and can be used to desulfurize either a liquid or a gaseous fuel stream.Owner:UNITED TECH CORP
Molecular sieve adsorbent-catalyst for sulfur compound contaminated gas and liquid streams and process for its use
InactiveUS20020009404A1Enhanced level of sulfur purificationImprove adsorption capacityMolecular sieve catalystsOther chemical processesMolecular sieveAlkaline earth metal
An adsorbent-catalyst for removal of sulphur compounds from sulfur compound contaminated gas and liquid feed streams, wherein the adsorbent-catalyst is a synthetic X or Y faujasite with a silica to alumina ratio from 1.8:1 to about 5:1 and wherein 40 to 90% of the cations of the faujasite include transition metals of Groups IB, IIB and VIIB with the balance of the cations being alkali or alkaline earth metals.
Owner:ZEOCHEM LLC
Solid acid catalyst and process for preparing the same
InactiveUS6326328B1High catalytic activityHigh activityCatalyst activation/preparationMetal/metal-oxides/metal-hydroxide catalystsIsomerizationPartial oxidation
The present invention relates to a shaped solid acid catalyst for the isomerization of hydrocarbons and so on, which has a high activity and is excellent in strength and easily handleable, and processes for the preparation thereof. This catalyst comprises a support comprising portions of zirconia having a tetragonal form and portions of alumina, and a sulfureous component and, if necessary, a Group 8, 9 or 10 metal component both being supported on the support, and has a specific surface area of 150 m2 / g or above. The catalyst can be prepared by kneading aluminum hydroxide, zirconium hydroxide and a sulfureous compound, shaping the kneaded mixture, calcining the shaped material at such a temperature as to form tetragonal zirconia and, if necessary, supporting a Group 8, 9 or 10 metal component on the calcined material and calcining the resulting molding at 300 to 700° C.
Owner:JAPAN ENERGY CORP
Multi-stage cryogenic acid gas removal
InactiveUS20070221541A1Alleviate power needsIncrease the number ofSolidificationLiquefactionPetroleumPetroleum coke
A relatively simple and energy efficient multiple stage cryogenic process for the purification of a hydrogen-rich stream by the removal of acid gases, mainly CO2 and H2S, by method of autorefrigeration and delivering or producing those acid gases, mainly CO2, at pressure sufficiently high for disposal by containment, commonly known as sequestration. Autorefrigeration is comprised of (a) condensing acid gases from the syngas stream by cooling the syngas, (b) separating the liquefied acid gases from the syngas, and (c) evaporating the liquefied acid gases at a pressure lower than that of the syngas to provide cooling. The process is composed of multiple autorefrigeration stages to generate multiple acid gas product streams with a pressure as high as practical in each stream so as to lessen the power needed to pressurize the acid gas streams for sequestration. The final autorefrigeration stage utilizes an antifreeze liquid that allows the final stage to operate below the freezing point of CO2; thus allowing more acid gas removal. The antifreeze liquid is an alcohol or a mixture of alcohols with a freezing point lower than about minus 110 degrees F. and a boiling point higher than about 100 degrees F. The process includes hydrogen recovery and recycle as well as recovery of the energy contained in the sulfur bearing compounds. The process is especially well suited for CO2 removal/sequestration from a coal (or petroleum coke) gasification process.
Owner:TENNESSEE VALLEY AUTHORITY
Oxidative desulfurization of sulfur-containing hydrocarbons
A method for desulfurizing a hydrocarbon stream (10) containing heterocyclic sulfur compounds, which process comprises contacting the heterocyclic sulfur compounds in the gas phase (60) in the presence of oxygen (70) with a supported metal oxide catalyst, or with a bulk metal oxide catalyst (600) to convert at least a portion of the heterocyclic sulfur compounds to oxygenated products as well as sulfur-deficient hydrocarbons and separately recovering the oxygenated products separately from a hydrocarbon stream with substantially reduced sulfur.
Owner:LEHIGH UNIVERSITY
Process for removing sulfur from naphtha
InactiveUS7799210B2Treatment with hydrotreatment processesMetal/metal-oxides/metal-hydroxide catalystsNaphthaSorbent
A three-step process of removing sulfur from naphtha feeds. The steps include a first hydrotreating step, a mercaptan removal agent and an adsorbent containing a reactive metal on an inorganic support. Step one removes at least 95 wt. % of the sulfur compounds while preserving at least 50 wt. % of the olefins. Treatment with the mercaptan removal agent lowers the sulfur content to 30 wppm total sulfur and final naphtha product contains leas than 10 wppm total sulfur.
Owner:EXXON RES & ENG CO
Membrane process for separating sulfur compounds from FCC light naphtha
InactiveUS6649061B2Ion-exchange process apparatusTreatment with plural serial stages onlyNaphthaHydrocarbon mixtures
A process for the separation of sulfur compounds from a hydrocarbon mixture using a membrane is provided. Preferred hydrocarbon mixtures are oil refining fractions such as light cracked naphtha. Membranes are composed of either ionic or non-ionic materials and preferentially permeate sulfur compounds over other hydrocarbons. A single or multi-stage membrane system separates the hydrocarbon mixture into a sulfur-rich fraction and a sulfur-lean fraction. The sulfur-lean fraction may be used in fuel mixtures and the sulfur-rich fraction may be further treated for sulfur reduction.
Owner:EXXON RES & ENG CO
Method for desulphurization of gases
InactiveUS6656249B1Eliminate needEasy to useTreatment using aerobic processesUsing liquid separation agentGas phaseSulphur compound
A method of removing hydrogen sulphide from a gas stream wherein the hydrogen sulphide is scrubbed from the gas phase by an aqueous solution, the hydrogen sulphide in the aqueous solution is biologically oxidized in a bioreactor to produce elemental sulphur, and the elemental sulphur is separated from the aqueous solution, characterized in that the gas stream to be treated is cooled to such a degree that at least sufficient water vapour condenses from the gas stream to compensate for the discharge stream for the purpose of removing salts. This means that no water need be supplied to the bioreactor. This method is suitable, in particular, for gas streams which contain hydrogen sulphide, the hydrogen sulphide having been obtained by catalytic conversion of sulphur compounds.
Owner:PAQUES BV NL
Process for producing branched hydrocarbons
The invention relates to a process for producing base oils, comprisings the steps where feedstock selected from ketones, aldehydes, alcohols, carboxylic acids, esters of carboxylic acids and anhydrides of carboxylic acids, alpha olefins, metal salts of carboxylic acids and corresponding sulphur compounds, corresponding nitrogen compounds and combinations thereof, is subjected to a condensation step and subsequently subjected to a combined hydrodefunctionalization and isomerization step.
Owner:NESTE OIL OY
Process for the production of gasoline with a low sulfur content comprising a hydrogenation, a fractionation, a stage for transformation of sulfur-containing compounds and a desulfurization
InactiveUS20030042175A1Treatment with hydrotreatment processesPetroleum wax recoverySulfur containingSulfur content
The invention relates to a process for the production of gasoline with a low sulfur content that comprises at least one selective hydrogenation of diolefins, optionally at least one stage for transformation, preferably to increase their weight, for light sulfur-containing compounds that are present in the gasoline, at least one fractionation of the gasoline that is obtained into at least two fractions: light gasoline and heavy gasoline, then optionally a stage for transformation, preferably for alkylation or adsorption, of sulfur-containing compounds and a desulfurization treatment in a stage of at least a portion of the heavy fraction.
Owner:INST FR DU PETROLE
Graphene-Sulfur Compositions and Electrodes Made Therefrom
ActiveUS20130119321A1Conductive materialOxide conductorsOrganosulfur compoundsLithium–sulfur battery
A method of making a composition, comprising: (1) oxidizing graphite to graphite oxide using at least one sulfur-containing reagent, (2) exfoliating the graphite oxide to form graphene sheets, and (3) blending the graphene sheets with elemental sulfur and/or at least one organosulfur compound, wherein the graphene sheets comprise at least about 1 weight percent sulfur. The composition may be made into an electrode that may be used in batteries, including lithium sulfur batteries.
Owner:LETTOW JOHN S
Method for analyzing accelerating agent of electro coppering, and deposited electrolyte
InactiveCN101004401ARelatively small errorAccurate concentration calibration lineCellsMaterial electrochemical variablesElectrolytic agentPolyethylene glycol
A method for analyzing accelerant of electroplated copper includes placing copper electrode in electrolyte containing organic additives to let copper electrode absorb accelerant containing sulphur, using pure water to wash copper electrode absorbed with sulphur compound then placing copper electrode into deposit-electrolyte containing polyethylene glycol and chlorine ion and carrying out cathode circulation VA scan to deposit down copper metal, carrying out integration on obtained polarization curve to prepare out detection line. The deposit-electrolyte used in said method is also disclosed.
Owner:欧恩吉亚洲股份有限公司
Method for desulphurisation of natural gas
The invention relates to a method for the removal of gaseous organo-sulphur compounds, in particular THT, from fuel gas streams. The method comprises bringing the gas stream into contact with an adsorbent, with a clay mineral from the hormite group, such as palygorskite, attapulgite, sepiolite and paramomtmorillonite as adorbent. In particular, the clay mineral is sepiolite and the fuel gas stream comprises natural gas. In this way large gas volumes can be purified for a prolonged period with the aid of an environmenetally friendly and inexpensive adsorbent. The invention also relates to a combination of a gas filter based on a clay mineral from the hormite group and a fuel cell. The invention also relates to a method wherein the clay mineral has been provided with a metal salt or a metal oxide, or a method wherein the clay mineral is combined with a second adsorbent.
Owner:STICHTING ENERGIEONDERZOEK CENT NEDERLAND
Alumina-based catalyst for the treatment of gases containing sulphur compounds, use of these catalysts for the treatment and processes for treatment of the said gases
InactiveUS6080379AImprove performanceDispersed particle separationHydrogen sulfidesOrganic sulphur compoundSulphur compound
The invention relates to a catalyst for the treatment of gases containing sulphur compounds, using the Claus reaction or using hydrolysis, which is made up of alumina-based porous particles and characterized in that the cumulative volume created by all the pores whose diameter is greater than 0.1 .mu.m, V.sub.0.1, is greater than 12 ml / 100 g of catalyst and in that the cumulative volume created by all the pores whose diameter is greater than 1 .mu.m, V.sub.1, is such that the ratio V.sub.1 / V.sub.0.1 is higher than or equal to 0.65. This catalyst can be employed for the treatment of gases containing sulphur compounds by using the Claus reaction, or of gases containing organic sulphur compounds by using a hydrolysis reaction.
Owner:INST FR DU PETROLE
Method of sorbing sulfur compounds using nanocrystalline mesoporous metal oxides
ActiveUS20050205469A1Reduce sulfur compound levelMaintain good propertiesOther chemical processesMetal/metal-oxides/metal-hydroxide catalystsOrganosulfur compoundsAcid property
Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or are impregnated with a material exhibiting soft Lewis acid properties. Methods according to the invention comprise contacting a fluid containing organosulfur contaminants with a mesoporous, nanocrystalline metal oxide. In a preferred embodiment, nanocrystalline metal oxide particles are formed into pellets (14) and placed inside a fuel filter housing (12) for removing organosulfur contaminants from a hydrocarbon fuel stream.
Owner:TIMILON CORP
Polymers produced by using sulphur compounds in the form of transfer agents for controlled radical polymerisation of acrylic acid and the use thereof
ActiveCN1950336ALow polydispersity indexEffective dispersionOrganic chemistryTransportation and packagingSulphur compoundWater soluble
The invention relates to polymers produced by using sulphur compounds for a method for the controlled radical polymerisation of acrylic acid and/or acrylic acid with hydrosoluble monomers in water. Said invention also relates to the use of said polymers in the form of dispersing agents or grinding aid agents and/or aid agents for combined grinding of mineral materials in an aqueous suspension or in the form of dispersing agents directly incorporated into aqueous formulations containing mineral materials. The formulations of the thus obtained mineral materials are also disclosed.
Owner:COATEX SA
Process, method, and system for removing heavy metals from fluids
InactiveUS20130306521A1Enhanced surface contactIncrease surface areaRefining with non-metalsRefining with metal saltsThioureaHydrazine compound
Trace amount levels of heavy metals such as mercury in crude oil are reduced by contacting the crude oil with a sufficient amount of a reducing agent to convert at least a portion of the non-volatile mercury into a volatile form of mercury, which can be subsequently removed by any of stripping, scrubbing, adsorption, and combinations thereof. In one embodiment, at least 50% of the mercury is removed. In another embodiment, the removal rate is at least 99%. In one embodiment, the reducing agent is selected from sulfur compounds containing at least one sulfur atom having an oxidation state less than +6; ferrous compounds; stannous compounds; oxalates; cuprous compounds; organic acids which decompose to form CO2 and / or H2 upon heating; hydroxylamine compounds; hydrazine compounds; sodium borohydride; diisobutylaluminium hydride; thiourea; transition metal halides; and mixtures thereof.
Owner:CHEVROU USA INC
Fluorescent and method for producing the same
To provide a fluorescent having low toxicity and high quantum yield, and a method for producing the same. The fluorescent is a compound comprising each one of I, III and VI group elements having a chalcopyrite structure, has a particle diameter of 0.5 to 20.0 nm and a quantum yield of at least 3% but not more than 30% at room temperature. The fluorescent is produced by: mixing a first solution (solution A), which is prepared by dissolving and mixing copper (I) salt and indium (III) salt in a solution added with a complexing agent coordinating copper (I) and indium (III), with a second solution (solution C) in which a sulfur compound is dissolved; ripening the mixed solution for a predetermined amount of time as a pretreatment; heat-treating the ripened solution under predetermined heat conditions; mixing the ripened solution with the second solution (solution C); and heating thus obtained mixed solution under predetermined synthesis conditions. In addition, a product produced by this production method is subjected to compositing treatment with ZnSe, ZnS or the like to improve the quantum yield.
Owner:NAT INST OF ADVANCED IND SCI & TECH
Separation of minerals
A process for floating fine particles containing metal values of an iron-bearing sulphide mineral ore including the steps of conditioning the aqueous pulp of ore at a pH of between about 7 and about 10 with a reducing agent which is preferably oxy-sulphur compound which dissociates to form oxy-sulphur ions having the general formula:where n is greater than 1; y is greater than 2; and z is the valance of the ion.A suitable collector is then added to the conditioned aqueous pulp to further condition the pulp and the pulp potential of the pulp raised to a sufficient level for the collector to adsorb onto the sulphide mineral ore. Gas is then bubbled through the aqueous pulp to subject the pulp to froth flotation. The froth from the flotation process is recovered to produce a concentrate of fine sulphide mineral and other metal values.By conditioning the aqueous pulp at a pulp potential which dissolves the iron hydroxide film from the surface of the metal sulphide inclusions in the ore and subjecting the ore to froth flotation at a suitable pulp potential before the iron hydroxide can reform, the recovery of metal values in the fine ores can be greatly enhanced.
Owner:COMMONWEALTH SCI & IND RES ORG
Method for desulphurisation of natural gas
The invention relates to a method for the removal of gaseous organo-sulphur compounds, in particular THT, from fuel gas streams. The method comprises bringing the gas stream into contact with an adsorbent, with a clay mineral from the hormite group, such as palygorskite, attapulgite, sepiolite and paramomtmorillonite as adorbent. In particular, the clay mineral is sepiolite and the fuel gas stream comprises natural gas. In this way large gas volumes can be purified for a prolonged period with the aid of an environmenetally friendly and inexpensive adsorbent. The invention also relates to a combination of a gas filter based on a clay mineral from the hormite group and a fuel cell. The invention also relates to a method wherein the clay mineral has been provided with a metal salt or a metal oxide, or a method wherein the clay mineral is combined with a second adsorbent.
Owner:STICHTING ENERGIEONDERZOEK CENT NEDERLAND
Process for reducing content of sulphur compounds and poly-aromatic hydrocarbons in a hydrocarbon feed
InactiveUS20010013484A1Slight additional investmentReduce contentHydrocarbon by hydrogenationLiquid carbonaceous fuelsPtru catalystSulphur compound
A process for reducing content of sulphur compounds and polyaromatic hydrocarbons in a hydrocarbon feed having a boiling range between 200° C. and 600° C., which process comprises in combination contacting the feed and hydrogen over a hydrotreating catalyst and hydrotreating feed at hydrotreating conditions, cooling the hydrotreated effluent and hydrogen-rich gas from the hydrotreating reactor contacting said effluent and hydrogen gas over a hydrotreating catalyst in a post-pretreatment reactor at a temperature sufficient to lower the polyaromatic hydrocarbon content.
Owner:HALDOR TOPSOE AS
Systems and processes for reducing the sulfur content of hydrocarbon streams
Systems and processes for removing a first sulfur compound from a hydrocarbon stream. The systems and process utilize at least one reaction vessel incorporating a hydrolysis catalyst suitable for hydrolyzing the first sulfur compound to a second sulfur compound. The reaction vessel also incorporates a sorbent material suitable for absorbing the second sulfur compound. Following hydrolysis of the first sulfur compound to the second sulfur compound and absorption of the second sulfur compound, a hydrocarbon-containing stream having a reduced sulfur content is produced. The hydrolysis catalyst and sorbent material may be provided in separate zones within the reaction vessel or provided as a mixture in a single zone. The hydrocarbon-containing stream having a reduced sulfur content is suitable for a variety of uses, including as a feedstreams for hydrogen plants, process gas streams for power generation plants, or for other uses for hydrocarbon-containing stream having reduced sulfur content.
Owner:EXXON RES & ENG CO
OLED device with asymmetric host
InactiveUS7056601B2Desired operational stabilityOrganic chemistryDischarge tube luminescnet screensDopantOrtho position
Disclosed is an OLED device comprising an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative of formula (I):whereinR1–R8 are H;R9 is not the same as R10;R9 is a biphenyl group containing no fused rings with aliphatic carbon ring members;R10 is an ortho-substituted- or meta monosubstituted phenyl group;provided that R9 and R10 are free of amines and sulfur compounds.
Owner:GLOBAL OLED TECH
Solid carbonaceous feed to liquid process
ActiveUS20080182912A1Gasifier mechanical detailsCombustible gas catalytic treatmentAlkanePartial oxidation
A process to prepare a paraffinic hydrocarbon from a solid carbonaceous feedstock, preferably coal by performing the following steps,
- (a) feeding an oxygen comprising gas and the carbonaceous feedstock to a burner positioned horizontal and firing into a reactor vessel,
- (b) performing a partial oxidation of the carbonaceous feedstock in said burner to obtain a stream of hot synthesis gas which flows upwardly relative to the burner and a liquid slag which flows downwardly relative to the burner,
- (c) cooling the hot synthesis gas by first cooling the gas to a temperature of between 500 and 900° C. by injecting a gaseous or liquid cooling medium into the synthesis gas and subsequently second cooling the gas in to below 500° C. by directly contacting with water,
- (d) separating solids from the cooled synthesis gas by means of a water scrubbing process step,
- (e) performing a water shift reaction on at least part of the scrubbed synthesis gas,
- (f) separating sulphur compounds, carbon dioxide and other possible impurities from the shifted gas to obtain a purified synthesis gas, and
- (g) performing a Fischer-Tropsch synthesis using the purified synthesis gas of step (f) to obtain a synthesis product comprising paraffinic hydrocarbons.
Owner:AIR PROD & CHEM INC
Carbonyl sulfur hydrolyzing catalyst
ActiveCN101239319AHigh catalytic activityImprove antioxidant propertiesMetal/metal-oxides/metal-hydroxide catalystsDesorptionSulphur compound
The present invention provides a carbonyl sulfur hydrolyst, including a carrier and an active component, characterized in that the active component of the catalyst includes an active component I and an active component II, the active component I is selected from sodium carbonate, potassium carbonate or their mixtures, the active component II is selected from following metal oxide: Be, Mg, Ca, Sr, Ba, or mixtures of their metal oxides, the catalyst carrier is selected from Al2O3 or mixture of Al2O3 and TiO2 or ZrO2, the percentage by weight in the catalyst: the active component I is 2wt%-15wt%, the active component II is 2wt%-15wt%, the carrier is 70wt%-96wt%. The catalyst is used for carboxide sulphur compound in desorption LPG, natural gas, refinery gas, catalytic cracking process gas, propylene and ethylene, the percent conversion is more than 95%.Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Composition for resin and optical lens obtained therefrom
ActiveUS20100331515A1High refractive indexReduce viscosity of compositionOptical partsOptical elementsSulfurRefractive index
According to a preferable embodiment of the present invention, a composition for a resin comprising an inorganic compound having a sulfur atom and/or a selenium atom, an episulfide compound, and a mercaptodisulfide compound can be provided. According to another preferable embodiment of the present invention, a composition for a resin having the viscosity thereof decreased to facilitate a cast polymerization operation and thus to improve the tonality of the obtained optical material can be provided. According to still another preferable embodiment of the present invention, an optical material obtained by curing the above-described composition for a resin and having a high refractive index can be provided.
Owner:MITSUBISHI GAS CHEM CO INC
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap