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42 results about "Fluoroantimonic acid" patented technology

Fluoroantimonic acid is an inorganic compound with the chemical formula H₂FSbF₆ (also written H₂F[SbF₆], 2HF·SbF₅, or simply HF-SbF₅). It is an extremely strong acid, easily qualifying as a superacid. The Hammett acidity function, H₀, has been measured for different ratios of HF:SbF₅. While the H₀ of pure HF is −15, addition of just 1 mol % of SbF₅ lowers it to around −20. However, further addition of SbF₅ results in rapidly diminishing returns, with the H₀ reaching −21 at 10 mol %. The use of an extremely weak base as indicator shows that the lowest attainable H₀, even with > 50 mol % SbF₅, is somewhere between −21 and −23.

Phosphor and optical device using same

A phosphor for converting ultraviolet light or blue light emitted from a light emitting element into a visible white radiation having a high level of color rendering properties, containing a light emitting component prepared from a solid system of an alkaline earth metal antimonate and a system derived from the solid system and exhibiting intrinsic photoemission, such as a fluoroantimonate, a light emitting component prepared from a manganese(IV)-activated antimonate, a titanate, silicate-germanate, and an aluminate, a light emitting component prepared from a europium-activated silicate-germanate or from a system containing a sensitizer selected from a group consisting of europium (II) and manganese (II) as a secondary activator and having an orange color or a dark red color in the spectrum range over 600 nm, or a light emitting component composed of a mixture of eight or less light emitting components having different emission bands and brought to a state of continuous emission of about 380 to 780 nm exhibiting a color temperature of about 10,000 to 6,500 K and a color temperature of about 3,000 to 2,000 K by virtue of the superposition of the light emitting bands.
Owner:TOYODA GOSEI CO LTD +2

Single-component stable luminescent device embedding composition at room temperature

The invention discloses a single-component encapsulating adhesive of a luminescent device with constant room temperature, and the components are: (1) epoxide resin and / or a monomer containing polymerizable double bond of C=C; (2) cation solicitation; (3) accessory ingredient: one or a combination of more than one of silicone adhesive accessory ingredient, foam killer, release agent, toner, antioxidant, and light scattering agent; the cation solicitation is: one of or a combination of more than one of triarylated matte onium based six fluorine antimonite, triarylated matte onium based six fluorine phosphate, phenyl octyloxy iodobenzene onium based six fluorine antimonite, quaternary ammonium group six fluorine antimonite, and quaternary ammonium group triflate. The encapsulating adhesive of the luminescent device is easy to be preserved; the use is convenient; double constituents of encapsulating adhesive are not needed to be blended when the encapsulation is conducted; the polymerization temperature is relatively low; the curing time is short, and the cured colloid is colorless and transparent with high transmittancy; the agglutinated property is constant; the adhesive is applicable to the encapsulating of the luminescent device, particularly for the encapsulating of a luminous diode.
Owner:杨钢

Phosphor and optical device using same

A phosphor for converting ultraviolet light or blue light emitted from a light emitting element into a visible white radiation having a high level of color rendering properties, containing a light emitting component prepared from a solid system of an alkaline earth metal antimonate and a system derived from the solid system and exhibiting intrinsic photoemission, such as a fluoroantimonate, a light emitting component prepared from a manganese(IV)-activated antimonate, a titanate, silicate-germanate, and an aluminate, a light emitting component prepared from a europium-activated silicate-germanate or from a system containing a sensitizer selected from a group consisting of europium (II) and manganese (II) as a secondary activator and having an orange color or a dark red color in the spectrum range over 600 nm, or a light emitting component composed of a mixture of eight or less light emitting components having different emission bands and brought to a state of continuous emission of about 380 to 780 nm exhibiting a color temperature of about 10,000 to 6,500 K and a color temperature of about 3,000 to 2,000 K by virtue of the superposition of the light emitting bands.
Owner:TOYODA GOSEI CO LTD +2

Photosensitive resin composition, method for manufacturing structural body, and liquid discharge head

A photosensitive resin composition includes: a cation polymerizable compound; a photoacid generator having an anion portion represented by the formula 1 and a cation portion,wherein R represents a hydrocarbon group which may be substituted with a fluorine atom and has a total carbon number of 1 to 30; X is selected from the group consisting of a carbon atom and a phosphorous atom; Y is selected from the group consisting of —S(═O)2—, —O—CF2—, —C(═O)—CF2—, —O—C(═O)—CF2—, —C(═O)—O—CF2—, and a single bond; R has at least one fluorine atom when Y is —S(═O)2— or the single bond; m and n are integers selected from the group consisting of m+n=3 and n=0, 1, and 2 when X is the carbon atom; m and n are integers selected from the group consisting of m+n=6 and n=0 to 5 when X is the phosphorous atom; and R and Y may be different from each other when m is equal to or greater than 2; and a salt of an anion portion and a cation portion, wherein an acid strength of an acid derived from the anion portion is equal to or greater than that of hexafluorophosphoric acid and equal to or less than that of hexafluoroantimonic acid.
Owner:CANON KK

Polycarboxylic acid cement grinding aid production method

The present invention relates to a polycarboxylic acid cement grinding aid production method, which comprises: 1, adding maleic anhydride, ethylene glycol, polyethylene glycol, allyl polyethylene glycol, methacrylic acid, a catalyst benzenesulfonic acid, a polymerization inhibitor hydroquinone and an initiator benzoyl peroxide to a reaction kettle, stirring, heating to a temperature of 65-75 DEG C so as to carry out an esterification reaction, maintaining the reaction temperature for 2.5-3 h, and heating to a temperature of 100-120 DEG C so as to carry out a polymerization reaction to obtain a polycarboxylic acid cement grinding aid; and 2, after completing the reaction, adding sulfamic acid and a catalyst fluoroantimonic acid to obtain the modified polycarboxylic acid cement grinding aid. According to the present invention, the efficient polycarboxylic acid cement grinding aid function controlled design method is provided, and the grafting density of the short and long side chains and the molecular weight of the long side chains are adjusted so as to achieve controllability of the key parameters of the cement particle dispersion process and the cement hydration process, achieve the function compounding, and ensure the compatibility of the cement grinding aid and the concrete admixture.
Owner:湖州华仑助剂科技有限公司

Novel fluorocyclopentenone preparation method and product thereof

The invention discloses a novel fluorocyclopentenone preparation method and a product thereof. The novel fluorocyclopentenone preparation method is characterized by comprising the following step: methyl tert-butyl ether, enynic ester, gold (acetonitrile)[(2-biphenyl)di-tert-butylphosphine] hexafluoroantimonate (I) and N-fluorobenzenesulfonimide are added to react, so that fluorocyclopentenone is obtained. The novel method for preparing a fluorocyclopentenone compound which is provided by the invention ensures that an enynic ester compound can be converted into the fluorocyclopentenone compound. The whole reaction is carried out under normal temperature and normal pressure, conditions are mild, and energy consumption is low. The whole reaction is carried out by utilizing a one-pot method, operation is easy, yield is high, and the purity of the product is 98 percent or more. The reaction substrate range is wide, and not only the simple enynic ester compound but also complex compounds containing natural product groups are applicable. The developed fluorocyclopentenone compound has potential bioactivity, and can become a drug by subsequent testing or modification.
Owner:NANJING FORESTRY UNIV

Radiation sensitive material and method for forming pattern

A copolymer expressed by the following structural formulawas obtained by loading adamantyl methacrylate monomer and t-butyl acrylate monomer by 1:1, then conducting polymerization, adding AIBN as a polymerization initiator, and then conducting precipitation purification with methanol. Then to the copolymer, triphenylsulfonium hexafluoroantimonate was added to prepare a cyclohexanone solution. This solution was applied to a wafer, and exposed to a KrF excimer stepper and developed. The threshold energy Eth was 50 mJ / cm2. A 0.45 μm-wide L & S was formed at 130 mJ / cm2. The radiation sensitive material has good transparency and etching resistance, high sensitivity, and little peeling.
Owner:FUJITSU SEMICON LTD

2-(2,6-dicyanophenyl) imidazo [1,2-alpha] pyridine compound and preparation method thereof

ActiveCN106831765AAntiviral Biological ActivityAnti-apoptotic biological activityOrganic chemistrySodium bicarbonateDichloroethane
The invention discloses a 2-(2,6-dicyanophenyl) imidazo [1,2-alpha] pyridine compound obtained through a direct nitrile grouping reaction method of a 2-phenyl-imidazo [1,2-alpha] pyridine compound and N-cyan-N-phenyl p-methylphenyl sulphonylamine (NCTS). The reaction is characterized by utilizing dichloro (pentamethyl cyclopentadienyl) rhodium (III) dimer ([RhCp*Cl2]2) and silver hexafluoroantimonate (AgSbF6) as catalysts, adopting sodium bicarbonate (NaHCO3) as an additive, adopting 1,2-dichloroethane as a reaction solvent, and realizing nitrile grouping reaction of the 2-phenyl-imidazo [1,2-alpha] pyridine compound and the N-cyan-N-phenyl p-methylphenyl sulphonylamine (NCTS). The method is simple and efficient, a functionalization reaction type of the 2-phenyl-imidazo [1,2-alpha] pyridine compound is enriched, and meanwhile, a new reaction mode of the N-cyan-N-phenyl p-methylphenyl sulphonylamine (NCTS) is also realized. The method has significance on research and application of nitrile grouping reaction of the 2-phenyl-imidazo [1,2-alpha] pyridine compound.
Owner:ZHENGZHOU UNIV

Axially chiral biaryl compound with P-stereo center and synthesis method and application thereof

The invention discloses an axially chiral biaryl compound with a P-stereo center and a synthesis method and application thereof. The structural formula of the compound is shown in the specification, chiral trivalent rhodium [CpXRh(III)] is used as a catalyst, diaryl phosphonamide and diaryl acetylene are used as raw materials, and enantioselective coupling is conducted under the assistance of silver trifluoromethanesulfonate or silver hexafluoroantimonate and silver acetate to obtain the compound. Diarylacetylene is taken as an initial raw material, the compound is stable in property and easy to prepare, but the compound is seldom applied to arylation reaction. In the prior art, aryl arylation is mainly carried out by using brominated aromatic hydrocarbon, arylboronic acid and the like. The simple diarylacetylene is adopted as an arylation reagent, the axially chiral biaryl and the P-center chiral compound are stereoscopically and specifically synthesized through double activation of C-H bonds in the aryl phosphonamide and the diarylacetylene, and the method has the advantages of being mild in reaction condition, high in enantioselectivity, good in diastereoselectivity and the like.
Owner:SHAANXI NORMAL UNIV

Method for preparing sodium hexafluoroantimonate by using antimony trioxide one-step method

The invention discloses a method for preparing sodium hexafluoroantimonate by using an antimony trioxide one-step method, which comprises the following steps: slurrying and dissolving raw materials including antimony trioxide, sodium fluoride and hydrofluoric acid, and slowly adding hydrogen peroxide for reaction to obtain a sodium hexafluoroantimonate crude product; and concentrating, cooling and crystallizing the sodium hexafluoroantimonate crude product to obtain a sodium hexafluoroantimonate refined product. According to the method, sodium fluoride is used as a sodium source and a fluorine source, sodium hexafluoroantimonate can be obtained only through one-step reaction with an antimony source, no new substance is introduced into a system, the reaction process is greatly shortened, experimental errors and generation of intermediate products and by-products are reduced, and the method has the advantages of being high in reaction degree and the like.
Owner:CENT SOUTH UNIV

Anti-doodling superhard heat-insulating coating as well as preparation and application thereof

The invention discloses an anti-doodling superhard heat-insulating coating as well as a preparation method and application thereof, and relates to the technical field of heat-insulating coatings. The preparation method comprises the following steps: preparing ladder-type polysilsesquioxane from epoxy siloxane, then taking the ladder-type polysilsesquioxane and 2, 5-bis (trifluoromethyl)-3, 6-dioxaundecafluorononanoyl fluoride as raw materials, and successfully synthesizing fluorinated ladder-type polysilsesquioxane through chemical grafting of a fluorine-containing oligomer and the ladder-type polysilsesquioxane, so as to obtain the fluorinated ladder-type polysilsesquioxane. The preparation method comprises the following steps: preparing a fluorinated trapezoid polysilsesquioxane coating, mixing the fluorinated trapezoid polysilsesquioxane coating with a triaryl sulfonium hexafluoroantimonate mixture to prepare a fluorinated trapezoid polysilsesquioxane coating, and sequentially spin-coating a CWO coating and the fluorinated trapezoid polysilsesquioxane coating on a substrate for curing to obtain the anti-doodling superhard heat-insulating coating. The prepared anti-doodling superhard heat insulation coating has excellent anti-doodling performance, high hardness, good heat insulation effect and use stability, can be used for manufacturing energy-saving windows to prolong the service life of the energy-saving windows, and has important scientific research value and commercial application value.
Owner:SHANDONG NON METALLIC MATERIAL RESEARCH INSTITUTE

Supported catalyst as well as preparation method and application thereof

The invention discloses a supported catalyst and application thereof in synthesis of difluoroacetyl fluoride, the supported catalyst comprises a carrier and active components, the active components comprise superacid and an active auxiliary agent; in the supported catalyst, the loading capacity of the superacid is 20 wt%-25 wt%, and the loading capacity of the active auxiliary agent is 5 wt%-10 wt%; the superacid is selected from at least one of fluoboric acid, fluorosulfonic acid, fluoroantimonic acid and carborane acid; the active auxiliary agent is selected from at least one of molybdenum nitrate, technetium nitrate, ruthenium nitrate, rhodium nitrate and chromic nitrate; when the supported catalyst is used for synthesizing difluoroacetyl fluoride, 1, 1, 2, 2-tetrafluoroethyl ethyl ether is used as a raw material, hydrogen fluoride is added under the action of the supported catalyst to inhibit generation of ethylene, and difluoroacetyl fluoride and fluoroethane are generated through cracking under relatively mild conditions; compared with an existing preparation method, the conditions are milder, and the one-way yield is larger than 95%.
Owner:浙江禾本科技股份有限公司

Platinum(II) ammine selenourea complexes and methods of treating cancer

A platinum(II) complex of formula (I),or a pharmaceutically acceptable solvate or tautomer thereof, wherein R1 and R2 are each independently a hydrogen, an optionally substituted alkyl, an optionally substituted cycloalkyl, an optionally substituted arylalkyl, or an optionally substituted aryl; or wherein R1 and R2 together form a five-, six-, or seven-membered ring with the nitrogen atoms to which they are attached; and X is a nitrate anion, a hexafluorophosphate anion, a hexafluoroantimonate anion, a trifluoromethanesulfonate anion, a tetrafluoroborate anion, a perchlorate anion, or a halide anion. A pharmaceutical composition containing the platinum(II) complex of formula (I), and a method of treating cancer are also disclosed.
Owner:KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS +1

A kind of synthetic method of hydrogenated pyridine spiroindoline ring catalyzed by monovalent silver

The present invention provides a kind of synthetic method that under the action of monovalent silver and reducing agent, the tryptamine alkyne amide substrate containing indole can generate hydrogenated pyridine spiroindoline ring at room temperature, the general reaction formula is as follows , where R 1 , R 2 , R 3 , R 4 As described in the claims and description. The silver catalyst required for the reaction is one of silver trifluoromethanesulfonate, silver hexafluoroantimonate, silver tetrafluoroborate, and silver bistrifluoromethanesulfonimide. The reducing agent required for the reaction is Hans ester. The medium required for the reaction is: toluene. The implementation of the reaction is stirring at room temperature. The method of the invention has easy-to-obtain raw materials, simple operation, wide application range, good atom economy, green reaction and low price.
Owner:SHENYANG PHARMA UNIVERSITY

A method for preparing sodium hexafluoroantimonate

This invention relates to the field of chemical process technology, specifically to a method for preparing sodium hexafluoroantimonate. The preparation method includes the following steps: (1) adding antimony trioxide, hydrogen fluoride aqueous solution, and sodium fluoride into a reaction vessel, stirring and heating, introducing a fluorine-nitrogen mixed gas, and then refluxing the reaction; (2) filtering and then flash evaporation concentration; (3) subsequently cooling and crystallizing at 0~15℃, and centrifuging to obtain sodium hexafluoroantimonate crystals. The preparation method provided by this invention can achieve fluorination, oxidation, and salt formation in one step simultaneously, with a simple process route and a significant reduction in steps; using low-concentration fluorine gas as an oxidant and fluorine source, the atom utilization rate is high, the reaction rate is fast, the raw material consumption is close to the stoichiometric ratio, the final product has a trivalent antimony residue of ≤0.01%, and the product purity is as high as 99.9%; combined with flash evaporation concentration, hydrogen fluoride and mother liquor recovery and recycling process, it can reduce raw material consumption and waste liquid discharge, thereby improving product yield and reducing production costs.
Owner:SHANDONG ZHONGSHAN PHOTOELECTRIC MATERIAL CO LTD

A kind of preparation method of silver hexafluoroantimonate

ActiveCN108726569BIncrease spawn rateLess impuritiesAntimonates/antimonitesSilver carbonateReaction temperature
The invention discloses a preparation method of silver hexafluoroantimonate. The preparation method comprises the following steps: mixing antimony trioxide and an acetic acid solution containing hydrogen fluoride, dropwise adding hydrogen peroxide at a speed of 1 to 30 mL / min to obtain a hexafluoroantimonate solution, adding silver carbonate to obtain a silver hexafluoroantimonate mother solution, concentrating, cooling, crystallizing to otain silver hexafluoroantimonate crude crystals, recrystallizing and purifying to obtain a silver hexafluoroantimonate product. By selecting the raw materials provided by the invention and controlling the reaction sequence of various steps, the reaction temperature, the reaction time as well as the dropwise addition speed of hydrogen peroxide, the entireoperation process of the preparation method provided by the invention is convenient, the reaction condition is mild, the raw material price is low, the environmental pollution is slight, the removalrate of impurities is high, and the purity of a final product is high and can reach 99 percent or more.
Owner:CHENZHOU CITY JINGUI SILVER IND CO LTD

Treatment method using flouroantimonic acid for digestion of trace impurity elements contained in high-purity chromic oxide

ActiveCN108169314AThe digestion effect is obviousImprove enrichment effectMaterial analysis by electric/magnetic meansDigestionImpurity
The invention relates to the field of detection pretreatment, and in particular relates to a treatment method using flouroantimonic acid for digestion of trace impurity elements contained in high-purity chromic oxide. After the chromic oxide is digested with the high-purity flouroantimonic acid, impurities are released from crystal lattices and boundaries, non-volatile impurities are retained after high-temperature volatilization of fluorine and antimony, and non-antimony and non-chromium elements are quantified after reconstitution with nitric acid. The method has an obvious digestion effecton the chromic oxide, has a good enrichment effect on the contained impurities, facilitates use ICP-MS or ICP-AES detection, improves the accuracy of instrument detection results and shortens the detection time.
Owner:DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST CO LTD

Size-controllable palladium nanoparticles and preparation method and application thereof

The invention provides size-controllable palladium nanoparticles as well as a preparation method and application thereof. The preparation method of the size-controllable palladium nanoparticles comprises the following steps: fully dispersing potassium tetrachloropalladate, tris (4-fluorophenyl) phosphine, 4, 4-dichlorodiphenyl disulfide, sodium salt and a reducing agent in a solvent, reacting, filtering, washing and drying to obtain the size-controllable palladium nanoparticles, the sodium salt is sodium hexafluoroantimonate or sodium tetrafluoroborate. According to the invention, a plurality of palladium nanoparticles with stable ligands (phosphine, mercaptan and anions) are systematically designed and synthesized, the preparation method is simple, and the reaction conditions are easy to realize; by changing the anion ligand SbF6 <-> or BF4 <->, the palladium nanoparticles with different sizes are obtained at a good yield. The palladium nanoparticles are applied to catalysis of the reduction reaction of 4-nitrophenol, and an excellent catalytic effect is shown.
Owner:LIAOCHENG UNIV

Chromium-free passivation method for zinc powder

The invention discloses a chromium-free passivation method for zinc powder. The preparation method comprises the following steps: adding a dispersing aid universal for water and oil into a water-soluble organic solvent, and uniformly stirring; adding zinc powder into the uniformly mixed medium, and uniformly stirring; and adding deionized water, a molybdenum-containing compound and silver hexafluoroantimonate, and uniformly stirring to obtain the passivated water-based zinc paste. According to a traditional zinc powder passivation method, zinc powder can be completely wrapped, so that the zinc powder loses the effect of an anti-rust pigment. According to the chromium-free passivation method for the zinc powder, the zinc powder can be stably stored in water for more than 6 months, and the electrochemical protection function of the zinc powder is not lost.
Owner:上海库曜新材料有限公司

A method for synthesizing iminostilbene

The present invention discloses a method for synthesizing iminostilbene. Using 1-phenylindole as the starting material, under the action of a super strong protonic acid, 1-phenylindole undergoes an intramolecular rearrangement reaction to generate iminostilbene. Among them, the super strong protonic acid is one of chlorosulfonic acid, fluorosulfonic acid, trifluoromethanesulfonic acid, magic acid, fluoroantimonic acid, and sulfuric acid / zirconia. The present invention also optimizes the corresponding reaction conditions, shortens the reaction time, and reduces the occurrence of side reactions. Therefore, it has the advantages of high product yield and short reaction time. The highest product yield reaches 93.8%, the time is 4-8 hours, and the purity is 99%, achieving good technical effects.
Owner:ZHEJIANG UNIV OF TECH

Processing technology for prolonging service life of high-temperature mesh belt

The invention discloses a processing technology for prolonging the service life of a high-temperature mesh belt, and relates to the technical field of prolonging the service life of the high-temperature mesh belt, and the processing technology comprises the following steps: coating a template liquid on the surface of the high-temperature mesh belt, ventilating at room temperature for 5-10 minutes, soaking the ventilated high-temperature mesh belt in absolute ethyl alcohol for 15-30 minutes, and drying at room temperature, the high-temperature mesh belt with the flexible porous structure coating is obtained; the preparation method comprises the following steps: adding silicon resin A, silicon resin B, silicon resin C, fluorinated acryloyloxy POSS (Polyhedral Oligomeric Silsesquioxane), a photoinitiator 819 and triaryl sulfonium hexafluoroantimonate into anhydrous dimethyl carbonate, and uniformly stirring to obtain a mixed solution; and coating the mixed solution on the surface of a high-temperature mesh belt with a flexible porous structure coating, placing the high-temperature mesh belt in a dark environment, ventilating at room temperature for 12-24 hours, carrying out photo-crosslinking curing in a nitrogen atmosphere for 10-15 minutes, and carrying out photo-crosslinking curing in air for 10-15 minutes, thereby achieving the effect of prolonging the service life of the high-temperature mesh belt.
Owner:YANGZHOU JIAOYANG MESH BELT MFG CO LTD

Treatment method of trace impurity element content in high-purity chromium trioxide digested by fluoroantimonic acid

ActiveCN108169314BThe digestion effect is obviousImprove enrichment effectMaterial analysis by electric/magnetic meansChromium trioxidePhysical chemistry
The invention relates to the field of detection pretreatment, and in particular relates to a treatment method using flouroantimonic acid for digestion of trace impurity elements contained in high-purity chromic oxide. After the chromic oxide is digested with the high-purity flouroantimonic acid, impurities are released from crystal lattices and boundaries, non-volatile impurities are retained after high-temperature volatilization of fluorine and antimony, and non-antimony and non-chromium elements are quantified after reconstitution with nitric acid. The method has an obvious digestion effecton the chromic oxide, has a good enrichment effect on the contained impurities, facilitates use ICP-MS or ICP-AES detection, improves the accuracy of instrument detection results and shortens the detection time.
Owner:DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST CO LTD

Aluminum molybdenum etching solution and preparation method and application thereof

PendingCN119491226ASulfatePhysical chemistry
The invention discloses an aluminum molybdenum etching solution as well as a preparation method and application thereof, and relates to the technical field of etching agents. Comprising a solvent and functional components, and the functional components comprise fluoroantimonic acid, sorbic acid, 1-hydroxyethylidene-1, 1-diphosphonic acid, fluoride and sulfate. Two organic weak acid oxidants, namely 1-hydroxyethylidene-1, 1-diphosphonic acid and sorbic acid, are added into functional components, and fluoroantimonic acid is used as a main oxidant to oxidize two metals, namely molybdenum and aluminum, so that the relative etching rate is changed. Then, sorbic acid is used as an auxiliary oxidizing agent or a buffer system, and in the etching process, the sorbic acid can ionize hydrogen ions along with the change of time to adjust the etching speed. Through the combination of fluoroantimonic acid and sorbic acid, the phenomenon that the etching speeds of molybdenum and aluminum are inconsistent can be remarkably improved, indentation or trailing of a metal layer is avoided, the residual phenomenon in the reaction process is reduced in cooperation with the action of 1-hydroxyethylidene-1, 1-diphosphonic acid, fluoride and sulfate, and the product yield is increased.
Owner:SHANGHAI SHENGJIAN MICROELECTRONICS CO LTD

Synthesis of 4-oxo-5-(arylformyl acetate-2-yl)naphthalene-sulfoxide ylide hybrids

The invention discloses a method for synthesizing 4-oxo-5-(aroyl acetate-2-yl) naphthalene-sulfoxide ylide hybrid, and belongs to the technical field of organic synthesis. The synthesis method adopts arylformyl sulfoxide ylide 1 and α-diazocarbonyl compound 2 as raw materials, and in the presence of rhodium catalyst and silver hexafluoroantimonate additive, a series reaction is carried out to obtain 4-oxo-5-(arylmethyl) Acyl acetate-2-yl) naphthalene-sulfoxide ylide hybrid 3. Through the series reaction, the present invention has high atom economy; the operation process is simple and efficient; the reaction process does not require the participation of alkali or acid, and is more economical, green, and environmentally friendly; The synthesis of naphthalene-sulfoxide ylide hybrids provides an economical and practical new method.
Owner:HENAN NORMAL UNIV

Thermal insulation composite cable

The invention discloses a thermal insulation composite cable, comprising several conductors and a light unit, wherein the conductors and the light unit are twisted together, an insulating sheath is provided on the outside of the conductor, and a light unit sheath is provided on the outside of the light unit; the light unit sheath comprises the following materials in parts by weight: 72 parts of ethylene-vinyl acetate copolymer, 16 parts of linear low-density polyethylene, 12 parts of ethylene propylene diene monomer rubber, 1 part of vinyl triethoxysilane, 1.5 parts of didodecyl thiodipropionate, 1.6 parts of silicone masterbatch, 3.5 parts of lead oxide powder, 4 parts of ethoxylated trimethylolpropane triacrylate, 1.2 parts of N,N,N',N'-tetrakis[4-(dibutylamino)phenyl]-1,4-phenylenediamine hexafluoroantimonate, 0.8 parts of diphenylguanidine, 1 part of sodium lauryl sulfate, and 0.6 parts of a dispersant. The thermal insulation composite cable of the present invention can isolate the external high temperature and extend the service life of the light unit.
Owner:GUANGXI ZONGLAN CABLE GROUP CO LTD

Production process of curing agent for yarn impregnation

InactiveCN112390288AIncrease spawn rateHigh removal rateAntimonates/antimonitesYarnHydrogen fluoride
The invention relates to a production process of a curing agent for yarn impregnation. The production process is characterized by specifically comprising the following steps: S1, preparing sodium pyroantimonate; S2, preparing hexafluoroantimonic acid; S3, preparing a silver hexafluoroantimonate mother solution; S4, concentrating, cooling and crystallizing the silver hexafluoroantimonate mother liquor; and S5, recrystallizing and purifying the crude silver hexafluoroantimonate crystal. Antimonous oxide is mixed with an acetic acid solution containing hydrogen fluoride, and compared with a method of mixing antimonous oxide with a hydrofluoric acid aqueous solution or anhydrous hydrofluoric acid, the process has the advantages of mild reaction conditions, simple and easily available raw materials, low equipment requirements, high hexafluoroantimonic acid generation rate, fewer impurities and higher silver hexafluoroantimonate product yield. Hexafluoroantimonic acid reacts with silver carbonate to generate the silver hexafluoroantimonate mother solution, and then silver hexafluoroantimonate is prepared from sodium pyroantimonate and silver carbonate in a hydrogen fluoride aqueous solution in one step. The method has the advantages of mild reaction conditions, low raw material price, small environmental pollution and high impurity removal rate, and the purity of the finally obtainedproduct is high and reaches 99% or above.
Owner:如皋市丹凤纺织有限公司

A method for producing fluoroberyllic acid and ammonium fluoroberyllium from beryllium sulfate solution

The invention discloses a method for producing fluoroberyllium acid and ammonium fluoride beryllium from a beryllium sulfate-containing solution, comprising the following steps: (1) after adjusting the pH value of the beryllium sulfate-containing solution, extracting with an iron extracting agent to obtain extracted iron (2) extracting the post-iron solution with beryllium extraction agent to obtain the beryllium post-extraction solution and beryllium-carrying organic phase; (3) using a mixed solution of oxalic acid and sodium sulfite to extract the beryllium-carrying organic phase (4) back-extracting the washed organic phase with a hydrofluoric acid solution to obtain a fluoroberyllium acid solution; this method shortens the technological process of beryllium production and improves the recovery of beryllium rate, reduce production costs, and stabilize the quality of beryllium.
Owner:HUNAN RES INST FOR NONFERROUS METALS

Production process of cationic curing agent

The invention relates to a production process of a cationic curing agent. The production process is characterized by specifically comprising the following steps: S1, preparing sodium pyroantimonate; S2, preparing hexafluoroantimonic acid; S3, preparing a silver hexafluoroantimonate mother solution; S4, concentrating, cooling and crystallizing the silver hexafluoroantimonate mother solution; and S5, recrystallizing and purifying coarse silver hexafluoroantimonate crystals. According to the present invention, the mixing of the antimony trioxide and a hydrogen fluoride-containing acetic acid solution has advantages of mild reaction condition, simple and easily available raw materials, low equipment requirement, high generation rate of hexafluoroantimonic acid, less impurity content, and high yield of the silver hexafluoroantimonate product compared with the mixing of antimony trioxide and a hydrofluoric acid aqueous solution or anhydrous hydrofluoric acid. Hexafluoroantimonic acid reacts with silver carbonate to generate a silver hexafluoroantimonate mother solution; and then silver hexafluoroantimonate is prepared from sodium pyroantimonate and silver carbonate in a hydrogen fluoride aqueous solution in one step. The method is mild in reaction condition, low in raw material price, small in environmental pollution and high in impurity removal rate, and the purity of the finally obtained product is high and reaches 99% or above.
Owner:NANTONG SYNASIA NEW MATERIAL CO LTD