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126 results about "Bromine Compounds" patented technology
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Inorganic compounds that contain bromine as an integral part of the molecule.
Bromine Addition for the Improved Removal of Mercury from Flue Gas
InactiveUS20080107579A1Significant technicalSignificant commercial advantageGas treatmentUsing liquid separation agentCombustionFlue gas
Bromine-containing compounds, added to the coal, or to the boiler combustion furnace, are used to enhance the oxidation of mercury, thereby enhancing the overall removal of mercury in downstream pollution control devices. The method is applicable to utility power plants equipped with wet FGD systems, as well as those plants equipped with spray dryer absorber FGD systems.
Owner:THE BABCOCK & WILCOX CO
Preparation method of BiOBr/ZnO nano photocatalyst powder
InactiveCN103464184AHigh reuse ratePromote degradationPhysical/chemical process catalystsBismuth compoundPhysical chemistry
The invention discloses a preparation method of BiOBr / ZnO nano photocatalyst powder, belonging to the field of nano photocatalyst preparation. The method is characterized by comprising the steps of adding two bromine compounds CTAB (cetyl trimethyl ammonium bromide) and potassium bromide or sodium bromide at a proper proportion and a zinc-containing compound into an ethanol solvent, adding a bismuth-containing compound, and uniformly mixing; transferring the solution into a Teflon high-pressure reaction kettle, and performing a solvothermal reaction at certain temperature to generate precipitates; washing the precipitates with water and ethanol, and drying at 80 DEG C to obtain novel efficient BiOBr / ZnO nano photocatalyst powder. The method disclosed by the invention is quick, simple, convenient and high in operability, and the prepared BiOBr / ZnO heterojunction nano photocatalyst powder has perfect photocatalytic degradation efficiency on organic pollutants as well as good reusability.
Owner:TAIYUAN UNIV OF TECH
Process for producing polydienes
Owner:BRIDGESTONE CORP
Methods for producing perfluoroalkanedi(sulfonyl chloride)
InactiveUS20090105502A1Organic chemistryOrganic compound preparationSulfonyl chlorideSimple Organic Compounds
Novel methods for preparing perfluoroalkanedi(sulfonyl chloride) are disclosed as are uses for these compounds. In one aspect, a method comprising reacting dibromoperfluoroalkane with Na2S2O4 followed by treating with chlorine, an organic compound, and then chlorine to form perfluoroalkanedi(sulfonyl chloride) is provided. Novel perfluoroalkanedi(sulfonyl bromide) compounds are also disclosed.
Owner:UBE IND LTD
Method of forming thin film
InactiveUS20060014912A1Simple wayHigh purityLiquid surface applicatorsOrganic chemistryEthylene HomopolymersChemistry
There is provided a method of forming a thin film of vinylidene fluoride homopolymer having crystal form I which is applicable to various substrates in relatively easy way (coating conditions, application method, etc.), a process for preparing a vinylidene fluoride homopolymer having crystal form I efficiently at high purity, and novel vinylidene fluoride homopolymers which can give a thin film being excellent in ferroelectricity. The method of forming a thin film of vinylidene fluoride homopolymer comprises (i) a step for preparing a green powder product of vinylidene fluoride homopolymer comprising crystal form I alone or as main component by subjecting vinylidene fluoride to radical polymerization in the presence of a bromine compound or iodine compound having 1 to 20 carbon atoms which contains at least one moiety represented by —CRf1Rf2X1, wherein X1 is iodine atom or bromine atom; Rf1 and Rf2 are the same or different and each is selected from fluorine atom or perfluoroalkyl groups having 1 to 5 carbon atoms and (ii) a step for forming a thin film on a substrate surface by using vinylidene fluoride homopolymer which comprises crystal form I alone or as main component and is obtained from the green powder product of vinylidene fluoride homopolymer comprising crystal form I alone or as main component.
Owner:DAIKIN IND LTD
Flame retardant epoxy resin compositions
InactiveUS6143423AImprove reliabilitySemiconductor/solid-state device detailsSolid-state devicesEpoxyCarbon number
An epoxy resin composition contains (A) an epoxy resin having an epoxy equivalent of at least 185 and possessing a skeleton having a structure in which two benzene rings are conjugable to each other directly or via an aliphatic unsaturated double bond, carbon atoms having an atomic orbital of SP2 type accounting for at least 50% of the carbon number, (B) a phenolic resin having a hydroxyl equivalent of at least 160, carbon atoms having an atomic orbital of Sp2 type accounting for at least 85% of the carbon number, (C) a polyimide resin in an amount of 1-20 parts by weight per 100 parts by weight of components (A) and (B) combined, and (D) 70-85% by volume of the entire composition of an inorganic filler. The composition cures into products having flame retardancy and high-temperature reliability even though it is free of bromine compounds and antimony compounds.
Owner:SHIN ETSU CHEM IND CO LTD
Stable oxidizing bromine formulations, method of manufacture and uses thereof for biofouling control
Stable biocide formulations containing oxidizing bromine are provided for biofouling control in industrial water systems. The formulations contain at least one stable oxidizing bromine compound that is prepared from at least one oxidizing chemical reagent, at least one bromine source and at least one bromine or halogen stabilizer. The resulting products are a mixture of stable oxidizing bromine compounds that can be used as a biocide in an industrial water system.
Owner:NALCO CHEM CO
Large size nonlinear optical crystal lead bromoborate, and preparation and use thereof
InactiveCN101435108APolycrystalline material growthFrom frozen solutionsNonlinear optical crystalMechanical property
The invention relates to a large size lead borate bromine nonlinear optical crystal with high frequency-doubled effect and a preparation method and applications thereof. The molecular formula of the crystal is: Pb2B5O9Br, the crystal belongs to a rhombic system, and the molecular weight is 691.50; mixed solution is obtained by evenly mixing a lead borate bromine compound with a fluxing agent, heating, constant temperature, and cooling to the temperature above a saturation point; seed crystal is put into the mixed solution, the temperature is rapidly reduced to the saturation point, and the seed crystal is led to grow crystal in the solution; after growing to the required size, the crystal is lifted from the liquid surface, the temperature is reduced to room temperature, and the large size lead borate bromine nonlinear optical crystal is obtained. The preparation of the crystal is characterized by simple operation, short growth cycle and low cost. The prepared crystal has larger size, good chemical stability and thermal stability, no deliquescence at room temperature, good mechanical performance, easy processing and storage, and the like. The lead borate bromine nonlinear optical crystal can be widely used in nonlinear optical devices such as frequency-doubled conversion, optical parametric oscillator, and the like.
Owner:XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
Highly concentrated bromine compositions and methods of preparation
InactiveUS7455859B2Good physical and chemical stabilityBiocideDead animal preservationOxidation stateHigh activity
Owner:ENVIRO TECH CHEM SERVICES
Bromine-containing disinfectant
InactiveCN101611717AHas a solubilizing effectImprove bioavailabilityBiocideDisinfectantsDisinfectantDissolution
The invention provides a bromine-containing disinfectant, which is prepared from the following components in percentage by weight: 20 to 60 percent of bromine-containing compounds, 30 to 50 percent of compound cosolvents, 0 to 25 percent of anhydrous sodium carbonate, and 0 to 25 percent of dimethylhydantoin. The bromine-containing disinfectant improves the bioavailability of bromide, wherein the bromine-containing compound has the advantages of high dissolution velocity and strong effects of disinfection and sterilization. The bromine-containing disinfectant is used to prepare thimerosal at a concentration of 250 to 400 ppm to wash and disinfect beer production equipment and pipelines of a beer brewery, can completely kill various bacteria and meets the CRB microbiological standards.
Owner:李新旺 +1
Epoxy resin composition for packaging semiconductors
InactiveCN101831137AImprove flame retardant performanceImprove reliabilitySemiconductor/solid-state device detailsSolid-state devicesEpoxyGreen environment
The invention relates to an epoxy resin composition for packaging semiconductors. The composition contains epoxy resin, a phenolic resin curing agent, a curing promoting agent and inorganic filler. The composition is characterized in that the phenolic resin curing agent is phenolic resin containing the following formula (I), wherein n=1-10, and R is H, CH3 or CF3. The epoxy resin composition can be used for effectively packaging various semiconductor devices, such as transistors and integrating circuits. The epoxy resin composition has no damage to the human body health and environments. Because the bromine compounds and antimonide are not contained, the epoxy resin composition is a green environment-protection product and is suitable for a low-pressure transfer forming process for molding, and the cured and formed semiconductor device has good flame retardant property and thermal-humidity reliability.
Owner:JIANGSU ZHONGPENG NEW MATERIAL
A chemical fiber oil bactericidal preservative and preparation method thereof
The invention discloses a chemical fiber oil agent bactericidal and preservative and a preparation method thereof. The chemical fiber oil agent is composed of thiocyanate-containing compounds, organic bromine compounds, isothiazolone compounds and other bactericidal and antiseptic active ingredients, auxiliary agents, emulsification agents, etc. agent, surfactant, and a balanced amount of propylene glycol. The percentage by weight of the preparation is: 0.5-5.0% of thiocyanate compound, 0-15% of organic bromine compound, 0.5-5.0% of isothiazolone compound, 1.0-3.5% of emulsifier, 0-10% of auxiliary agent, surface Active agent 0-15% and balance propylene glycol. The preparation is prepared by first preparing thiocyanate compounds, organic bromine compounds and isothiazolone compounds under normal pressure and room temperature, then adding the remaining raw materials, mixing and stirring, and organically combining sterilization and antiseptic drugs. The chemical fiber oil has the advantages of good compatibility, low production cost, etc., and is convenient to use, safe and reliable, and easy to implement.
Owner:苏州市永安微生物控制有限公司
Method for producing aromatic chlorine and bromine compounds
The present invention relates to a novel method for producing aromatic chlorine or bromine compounds having the formula (II) by diazotization of formula (I) in the presence of aqueous hydrochloric or hydrobromic acids using sodium nitrite or potassium nitrite and subsequent conversion with an iron (II) or iron (III) compound, optionally in the presence of additional amounts of hydrogen chloride or bromide or alkaline or alkaline earth chlorides or bromides.
Owner:BAYER IP GMBH
Composite disinfecting effervescent tablet and preparation method thereof
InactiveCN101496530AImprove the bactericidal effectReliable sterilization effectBiocideDisinfectantsSodium bicarbonateDisinfectant
The invention provides hydantoin composite effervescent disinfectant tablets and a preparation method thereof. The components of the composite effervescent disinfectant tablets comprise hydantoin bromine-containing compounds, an antimicrobial traditional Chinese medicine extract and effervescent tablet accessories, wherein the concentration of the antimicrobial traditional Chinese medicine extract is that 1 gram of disinfectant tablets contains 0.1 to 10 grams of crude drugs; the content of the antimicrobial traditional Chinese medicine extract is 3 to 30 percent of the total weight; the content of the hydantoin bromine-containing compounds is 0.1 to 30 percent of the total weight; and the balance is the effervescent tablet accessories. The preparation method comprises the following steps that: in an environment at the humidity of between 20 and 45 percent, polyvinylpyrrolidone, potassium bromide, the antimicrobial traditional Chinese medicine extract, sodium carbonate and sodium bicarbonate are well mixed to give a first mixture; the hydantoin bromine-containing compounds, adipic acid, sodium sulfate and citric acid are well mixed to give a second mixture; and the first mixture and the second mixture are mixed well, sieved and tabletted. The composite effervescent disinfectant tablets have the advantages of low toxicity, environmental protection and high efficiency.
Owner:RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
Terphenyl bridged double-benzimidazoles compound as well as synthesis method and application thereof
The invention provides a terphenyl bridged double-benzimidazoles compound as well as a synthesis method and application thereof. The invention takes cyanophoric phenyloboricacid and aromatic dibromide (such as 1,4-dibromo-benzene, 2-fluorine-1, 4-dibromo-benzene, 2,5-dibromo-toluene) as raw materials; under the catalysis of organic palladium and inorganic base, a series of terphenyl compounds with di-cyan can be synthesized by the Suzuki coupling reaction; and then a series of terphenyl bridged double-benzimidazoles compounds can be obtained by adding 1 time of di-cyano-terphenyl compounds and 2-2.4 times of o-phenylenediamine compounds, taking polyphosphoric acid as the catalyst and carrying out the condensation reaction for 6-24 hours under 180-240 degrees C.. The compound can be applied to the fields such as light emitting devices, photovoltaic cells, organic light-emitting diodes and the like as the organic blue-light material or the electron transport material.
Owner:NANJING UNIV OF TECH
Dimensionally-stable propylene polymer foam with improved thermal aging
InactiveUS20050004285A1Sufficient rateImproves longevity test resultConstruction materialSpecial tyresUltrasound attenuationBromine
A propylene polymer foam that contains both a bromine compound, especially an aromatic bromine compound, as a flame retardant additive and an infrared radiation blocking or attenuation compound such as carbon black or graphite and has enhanced resistance to thermal degradation over time due to incorporation of certain stabilizing additives in addition to phenolic-based antioxidants. The foam has utility in thermal insulation applications.
Owner:DELABROYE CHRISTINE +6
Fiber for hair use improved in curling property and head decoration product comprising the same
Fibers for hair use in which the drawback of curling property is imparted without imparting features of human hair, such as flame resistance, heat resistance, touch feeling, and which are reduced in quality unevenness. The fibers are a bundle of fibers for hair use which comprises a mixture of 10 to 90 parts by weight of human hair (A) and 90 to 10 parts by weight of polyester fibers (B) having an LOI-value of at least 25, a thermal shrinkage ratio at 180° C. of at most 5%, and a single fiber fineness of 20 to 100 dtex, wherein the component (B) is polyester fibers formed from a composition obtained by melt-kneading a polyalkylene-ethylene terephthalate and a copolymer comprising polyalkylene-ethylene terephthalate as the main component (C) together with a phosphorus compound flame retardant (D) and / or a bromine compound flame retardant (E).
Owner:KANEKA CORP
Chlorine dioxide solid releasing agent and preparation method thereof
PendingCN109819999AGuaranteed not to absorb moistureReduce formationBiocideFungicidesHypobromous acidPhysical well being
The invention relates to the field of environmental purification and disinfectants, in particular to a chlorine dioxide solid releasing agent and a preparation method thereof.The chlorine dioxide solid releasing agent is prepared from the following raw materials in parts by weight:4-26 parts of chlorite,10-65 parts of a bromine-containing inorganic salt activator and 5-20 parts of a passivation stabilizer, wherein a tasteless bromine-containing inorganic compound is used for firstly forming hypobromous acid and then activating sodium chlorite under an acidic condition;hypobromous acid has stronger oxidizing ability than hypochlorous acid and does not produce chloroform, thereby quickly producing high purity and high yield of chlorine dioxide and being less affected by temperature and reaction time;no secondary pollution occurs during use. According to the preparation method of the chlorine dioxide solid releasing agent, chlorine odor is not produced during the production and preparation process, and the production environment and the health of workers are effectively protected;the bromine-containing compound formed during the activation process has higher oxidation performance thanchlorine-containing compound, so the use concentration is lower,the disinfection effect is better and the application range is wider.
Owner:开封恩科生物科技有限公司
Process for producing polydienes
Owner:BRIDGESTONE CORP
Method of forming thin film
InactiveUS7655742B2High purityEfficient preparationLiquid surface applicatorsOrganic chemistryPolymer scienceCarbon atom
Owner:DAIKIN IND LTD
Method for purifying a bromine compound
InactiveUS6333437B1Ether separation/purificationOrganic compound preparationPhysical chemistrySlurry
A method for purifying a bromine compound by depositing the bromine compound represented by the following general formula (1) as solid particles from a crude solution containing the bromine compound:wherein(i) the crude solution is supplied into the slurry containing the particles of the bromine compound;(ii) the concentration of the particles of the bromine compound in the slurry is maintained at a predetermined range;(iii) the solvent contained in the slurry is a mixed solvent of a good solvent and a poor solvent and the ratio of the good solvent to the poor solvent is maintained at a predetermined value; and(iv) the solid particles of the bromine compound are separated from the slurry.
Owner:TEIJIN KASEK KK
Niobium-doped bismuth oxybromide catalyst and preparation method and use method thereof
PendingCN111744505AGood photocatalytic degradation of organic matter under visible lightLarge specific surface areaPhysical/chemical process catalystsWater/sewage treatment by irradiationBismuth oxybromidePtru catalyst
The invention provides a niobium-doped bismuth oxybromide catalyst and a preparation method and a use method thereof. The preparation method comprises the following steps: 1, heating an alcohol solvent until the alcohol solvent is boiled, and naturally cooling, 2, sequentially adding a bismuth salt compound, a niobium compound and a bromine compound, mixing and fully stirring, 3, adding a neutralsolution, 4, carrying out high-pressure constant-temperature reaction, and 5, cooling to room temperature, carrying out centrifugal separation, respectively washing with water and an ethanol solution,drying, and collecting the powder to obtain the flower-ball-shaped niobium-doped bismuth oxybromide. The photocatalyst prepared by the preparation method disclosed by the invention is Nb-BiOBr, the photocatalyst has good visible light photocatalytic degradation organic matter performance, higher photocatalytic activity and photo-induced electron hole separation efficiency, the degradation efficiency of the photocatalyst is 6.4 times that of BiOBr in the prior art, and the photocatalyst is environmentally friendly, harmless, low in price, controllable in method and easy to operate and has wideapplication prospects in the field of environmental pollution and governance.
Owner:DALIAN POLYTECHNIC UNIVERSITY
Improved biological control by using chlorine-stabilizing agent mixture
InactiveCN103053613AIncrease contentContent increase or decreaseBiocideNon-macromolecular organic additionEthyl ChlorideMixing ratio
The invention relates to improved biological control by using a chlorine-stabilizing agent mixture. The invention discloses a composition and an application method thereof. The composition comprises a halogen source, urea, an extra halogen stabilizing agent excluding urea and optional alkalis with concentrations enough to provide a pH value more than 10 for the composition, and does not comprise stable bromine compounds optionally. Besides, the invention discloses a method for reducing bioactivity in a process stream. Through the optimized mixing ratio of the halogen and the stabilizing agent and mixing ratio of ammonium salt and sulfamic acid or sulfamate, synergy appears, which not only improves the effect of the composition as a biocide but also avoids adverse effects on other chemicals (such as paper pulp and paper additives in the papermaking water flow) in the water flow.
Owner:NALCO CO
Flame-retarded foamable styrene-based resin beads and process for producing the same
Flame-retarded foamable styrene-based resin beads and a process for producing the resin beads are provided in which a combination of two organic bromine-containing compounds is used in order to accomplish a high flame retardancy level with a small amount of addition and decreased level of residual monomer. The flame-retarded foamable resin beads comprises a blowing agent added to resin beads by impregnating with the blowing agent during or after polymerization. The beads are produced by suspension polymerizing a monomer composition containing 0.5 to 5.0 parts by weight per 100 parts by weight of the monomer of a bromine-containing flame retardant comprising (a) an organic bromine-containing compound having 2,3-dibromo-2-alkylpropyl group and (b) an organic bromine-containing compound having a bromine content greater than 50 wt % and free of any bromine atom attached to a tertiary carbon atom.
Owner:DAI ICHI KOGYO SEIYAKU CO LTD
Process For Producing Polydienes
A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer in the presence of a dihydrocarbyl ether, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of organic solvent based on the total weight of the polymerization mixture, and where said step of polymerizing employs a lanthanide-based catalyst system that includes the combination of or reaction product of ingredients including (a) a lanthanide compound, (b) an aluminoxane, (c) an organoaluminum compound other than an aluminoxane, and (d) a bromine-containing compound selected from the group consisting of elemental bromine, bromine-containing mixed halogens, and organic bromides.
Owner:BRIDGESTONE CORP
Method for preparing soluble crosslinked polystyrene uniform branch point distribution
The invention relates to preparation of crosslinked polystyrene, and aims to provide a method for preparing soluble crosslinked polystyrene uniform branch point distribution. The method comprises the following steps: adding multi-arm polystyrene containing a bromine end group, copper powder and polybasic amine ligands into a reactor holding a solvent; stirring after deoxygenation; conducting reaction to obtain soluble crosslinked polystyrene uniform branch point distribution. The method has the advantages that the synthesis conditions are simple, the synthesis of N bromine compounds is convenient, the structure is changeable, the arm length polymerization degree of the N-arm polystyrene containing the bromine end group can be accurately adjusted, and the method is a novel convenient and efficient crosslinked polystyrene synthesis method.
Owner:ZHEJIANG UNIV
Synthetic method of 3,6-dihydro-2H-pyran-4-boronic acid pinacol ester
ActiveCN104004006AReduce usageSave raw materialsGroup 3/13 element organic compoundsBoronic acidKetone
The invention discloses a synthetic method of 3,6-dihydro-2H-pyran-4-boronic acid pinacol ester, which comprises the following steps: 1) carrying out a reaction of tetrahydro-4H-pyran-4-one and hydrazine hydrate in a solvent to generate single ketone hydrazone; 2) carrying out a reaction of the single ketone hydrazone and copper bromide in a solvent in the presence of triethylamine to obtain a dibromo intermediate; 3) carrying out an elimination reaction of the dibromo intermediate and an alkali in a solvent to obtain an alkenyl bromide compound; 4) carrying out a Suzuki-Miyaura reaction of the alkenyl bromide compound and bis(pinacolato)diboron in a solvent in the presence of a palladium complex to obtain the product. The synthetic method of the invention is simple, and low in cost, adopts no dangerous raw materials, and is safe and suitable for large-scale production.
Owner:CHEN STONE GUANGZHOU CO LTD
Coal-fired flue gas demercuration method employing additive and adsorbent
InactiveCN106823773ASimple processEasy to operateGas treatmentEmission preventionCombustion systemSorbent
The invention discloses a coal-fired flue gas demercuration method employing an additive and an adsorbent. The additive is one of or a mixture of more or bromine compounds, wherein the bromine compounds comprises NaBr, KBr, NaBrO3, KBrO3 and CaBr2 aqueous solutions, the concentrations of which are separately 0.1-5mol / L, 0.1-3mol / L, 0.1-1mol / L, 0.1-1mol / L and 0.1-5mol / L; the adsorbent is one of or a mixture of more of active carbon, active coke and Br-carrying modified active carbon, wherein the Br-capacity of the Br-carrying modified active carbon is 1-10wt%. The additive is added into a boiler of a coal-fired glue gas combustion system and the adsorbent is sprayed on an upstream flue of a dedusting device of a flue gas purification system. The synergistic demercuration action of the method is maximized, and the existing pollutant removal equipment can be utilized, so that the coal-fired flue gas demercuration method has the advantages of simple process, high demercuration efficiency, low cost and the like.
Owner:BEIJING SPC ENVIRONMENT PROTECTION TECH
Method of forming thin film
InactiveUS20100093962A1High purityEfficient preparationLiquid surface applicatorsOrganic chemistryPolymer scienceCarbon atom
Owner:DAIKIN IND LTD
Composite type sterilizing agent composition for treating industrial water and method for preparing composite type sterilizing agent composition
InactiveCN105638661ALower doseFast sterilizationBiocideSpecific water treatment objectivesPotassium hydroxideMicrobial diversity
The invention discloses a composite type sterilizing agent composition for treating industrial water. Sterilizing agents of the composite type sterilizing agent composition comprise, by weight, 50-90 parts of bromine compounds, 40-70 parts of amphoteric sterilizing agents, 1-15 parts of dispersing agents, 1-5 parts of inorganic acid, 0.5-3 parts of polymerization inhibitors, 5-10 parts of potassium hydroxide and 10-50 parts of deionized water. The composite type sterilizing agent composition has the advantages that the bromine compounds and the amphoteric sterilizing agents are compounded with one another, potential of various components can be played to the greatest extent under the synergistic effects, and accordingly requirements on microbial diversity sterilization treatment on the industrial water can be met; the sterilizing agents are low in toxicity and easy to degraded, and corrosion inhibition sterilization effects can be realized.
Owner:FOSHAN JUCHENG BIOCHEM TECH RES & DEV CO LTD
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