322 results about "Sulfuryl" patented technology

The invention belongs to the technical field of organic synthesis, and particularly relates to a pyroxasulfone preparation method which specifically comprises the following steps: dissolving 3-(5-difluoromethoxy-1-methyl-3-trifluoromethyl-1H-pyrazol-4-ylmethylthio)-5, 5-dimethyl-2-isoxazoline serving as a raw material with a solvent, then adding a boron compound, finally dropwise adding hydrogen peroxide, and reacting at room temperature to obtain the pyroxasulfone. Reacting for several hours to obtain pyroxasulfone; the adopted boron compound is cheap and easy to obtain, so that the use of a transition metal catalyst is avoided, and the raw material cost is reduced; organic acid reagents with heavy odor are not used, waste water and solid waste are less, and the method has great advantages in the aspect of environmental protection; the method is simple to operate, free of complex treatment steps and suitable for industrial production, and when the boron compound is selected from sodium metaborate, sodium perborate or a mixture of borax and sodium metaborate, the yield and purity of the process are higher, and sulfoxide impurities are fewer.

The invention relates to the technical field of water pollution treatment, and discloses a sulfur autotrophic denitrification filler for nitrogen wastewater treatment and a preparation method thereof.The sulfur autotrophic denitrification filler comprises composite particles capable of being degraded step by step, and the composite particles are synergistically limited by chemical compositions and microscopic physical structures; the main alkali source calcium-based carbonate and the sacrificial alkali source magnesium-based oxide establish an interface self-updating mechanism by utilizing the reaction rate difference; physically, a pore structure composed of a reaction chamber and a throat is built in the filler, self-cleaning of an endogenous mass transfer channel is achieved through denitrification product nitrogen, and through internal cooperation of chemical and physical mechanisms, the problems of interface passivation and pore silting self-locking of traditional sulfur-based filler caused by reaction products are solved; the active self-updating and long-term stable operation capabilities of the filler are realized, so that the application potential of a cheap alkali source is released.

The application discloses a kind of water-soluble sulphur-based compound fertilizer preparation method, belong to compound fertilizer technical field.The steps include as follows:(1) in reaction kettle, concentrated sulfuric acid and potassium chloride are reacted under heating condition, reaction temperature is 105-115 DEG C, reaction time is 25-45 minutes, slurry is sent to cooling kettle;(2) in cooling kettle, temperature is reduced to 40-60 DEG C, slurry is sent to mixed acid tank;(3) in mixed acid tank, add dilute phosphoric acid, potassium bisulfate solution and slurry, reaction temperature is 65-75 DEG C, slurry is sent to tubular reactor;(4) in tubular reactor, add ammonia, washing liquid and slurry, reaction temperature is 150-180 DEG C, slurry is sent to granulator;(5) in granulator, add alkaline compound fertilizer raw material, return material and slurry for granulation, granulation temperature is 80-95 DEG C, return material ratio is 1:1.5-2.0;(6) the granules obtained from granulator are cooled and screened to obtain product.

The invention discloses a preparation process of polyether-ether-ketone, and relates to the technical field of preparation of inorganic compounds. The preparation process comprises the following steps: reacting 4, 4 '-difluorobenzophenone, sodium carbonate and hydroquinone to generate polyether-ether-ketone, taking a polyaryletherketone block oligomer as an end-capping reagent, reacting 4, 4'-difluorobenzophenone with 4, 4 '-dimercaptodiphenyl sulfone, and then reacting with pentaerythritol phosphate to obtain the polyaryletherketone block oligomer. The thioester bond reversibly breaks at the polymerization temperature, exposed active sulfenyl reacts with hydroxyl at the tail end of the polyether-ether-ketone to form a more stable covalent bond, volatilization of the end-capping reagent is avoided, meanwhile, the initial decomposition temperature of the end-capped polyether-ether-ketone is increased, and the stability of the end-capping reagent is improved. The polyether-ether-ketone generated in the polyether-ether-ketone resin product is subjected to treatment procedures of crushing, organic solvent extraction, water washing, filtering, drying and the like, so that the product polyether-ether-ketone is obtained, less three wastes are generated, the solvent can be recycled, the atom economy is relatively high, and the preparation process of comprehensive utilization of resources is realized.

The invention relates to the technical field of sewage treatment, and discloses a preparation method of a porous ceramic loaded sulfur-based composite filler and application of the porous ceramic loaded sulfur-based composite filler in nitrogen and phosphorus removal of sewage. Porous ceramic is taken as a carrier, active components are loaded in a layered manner by adopting a gradient filling process, an inner-layer siderite composite gel and calcite complex dynamically neutralizes H < + > generated by sulfur autotrophy, and pH buffering is realized through sulfo group reversible proton exchange; the compressive strength of the middle-layer pyrite composite gel is improved through C-O-Fe bonding, a Pi-Pi conjugate electron pathway is constructed by polypyrrole-coated hybrid gel, electron transfer is accelerated, and Fe < 2 + > is released to precipitate phosphate; sulfur-charcoal on the outer layer forms nano sulfur crystals, and denitrification is quickly started by utilizing a high specific surface area. Sulfur consumption and sulfate accumulation are reduced through sulfur-iron oxidation-reduction circulation. The filler realizes high-efficiency nitrogen and phosphorus removal of sewage under the condition that a carbon source and a pH regulator are not required to be additionally added.

Provided is a rubber composition with which it is possible to obtain a vulcanized product and a vulcanized molded product having excellent wear resistance. According to the present invention, there is provided a rubber composition containing a chloroprene rubber, silica, a silane coupling agent, and a hydrate, the rubber composition containing 5-80 parts by mass of silica and 0.5-20 parts by mass or more of hydrate per 100 parts by mass of the chloroprene rubber, and the rubber composition containing 5-80 parts by mass of silica and 0.5-20 parts by mass of hydrate per 100 parts by mass of the chloroprene rubber. The content of a silane coupling agent is 0.5-15 parts by mass per 100 parts by mass of the silica, and the rubber composition satisfies at least one of the following conditions i) and ii): condition i) the rubber composition contains 3-methyl-thiazolidine-2-thione, and in the rubber composition, the content of 3-methyl-thiazolidine-2-thione is 0.5-15 parts by mass per 100 parts by mass of the chloroprene-based rubber, and the content of 3-methyl-thiazolidine-2-thione is 0.5-15 parts by mass per 100 parts by mass of the chloroprene-based rubber. The composition contains 0.1 to 3.0 parts by mass of 3-methyl-thiazolidine-2-thioketone; condition ii) the rubber composition contains a compound A and a compound B. The compound A is at least one compound selected from the group consisting of thiourea compounds, 3-methyl-thiazolidine-2-thione, and bis (5-mercapto-1, 3, 4-thiadiazol-2-yl) disulfides, and the compound B is at least one compound selected from the group consisting of thiourea compounds, 3-methyl-thiazolidine-2-thione, and bis (5-mercapto-1, 3, 4-thiadiazol-2-yl) disulfides. The compound B is at least one compound selected from the group consisting of thiuram-based compounds, sulfinamide-based compounds, thiazole-based compounds, guanidine-based compounds, benzimidazole-based compounds, N-phenyl-N-(trichloromethylthio) benzsulfonamide, and diazabicyclo-undecene-based compounds, and the content of the compound B is 100 parts by mass per 100 parts by mass of the chloroprene rubber. The rubber composition contains 0.1 to 3.0 parts by mass of a compound A and 0.01 to 3.0 parts by mass of a compound B.

The invention relates to the technical field of wastewater treatment, in particular to an advanced treatment process for fluorine, mercury and chromium in electronic wastewater. The deep purification of fluorine, mercury and chromium is realized through the pretreatment of nano zero-valent iron and sodium hydrogen sulfite and the combined action of Sorel cement, sulfenyl functional activated carbon, FeSO and nano TiO2 and ultraviolet light. The F <-> adsorption capacity is increased to 50mg / g by the modified alumina and the three-dimensional zeolite, and the concentration of F <-> is ensured to be less than or equal to 10mg / L by combining CaF2 precipitation; the sulfur-based functionalized activated carbon directionally adsorbs Hg < 2 + > through-SH groups, and complexed chromium is degraded by combining photocatalysis, so that the residual Hg < 2 + > is less than or equal to 0.001 mg / L, the total chromium is less than or equal to 1.5 mg / L, and the emission standard is comprehensively met.

The invention provides a metal peroxide complex molecular catalyst, a preparation method and application thereof, and a continuous synthesis method of pyroxasulfone. A transition metal ion center, an organic ligand, a metal-peroxide bridged bond (M-O-O-M) and other structures are introduced into the prepared metal peroxide complex molecular catalyst, and under the synergistic effect of the structures, the prepared metal peroxide complex molecular catalyst is used for oxidizing thioether into sulfone. The catalyst has excellent selectivity and catalytic efficiency. Particularly, when the catalyst is used for catalyzing 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazole-4-yl)-methylthio]-4, 5-dihydro-5, 5-dimethyl-1, 2-isoxazole to be oxidized and synthesized into pyroxasulfone, the reaction efficiency, selectivity and safety of the oxidation reaction can be effectively improved, and therefore the preparation cost of pyroxasulfone can be further reduced advantageously, and the catalyst can be used for catalyzing 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazole-4-yl)-methylthio]-4, 5-dihydro-5, 5-dimethyl-1, 2-isoxazole to be oxidized and synthesized into pyroxasulfone.

The invention provides a synthesis method of a thioether ligand and a palladium-catalyzed 2-aryl indole compound, and designs an application of the biphenyl thioether ligand and a palladium catalyst in preparation of the 2-aryl indole compound. Indole and arylboronic acid are subjected to a reaction under the action of a palladium catalyst and a biphenyl sulfide ligand, and the structural formula of the biphenyl sulfide ligand is shown in the specification. Ar is phenyl, furyl, thienyl, naphthyl or phenyl substituted by one or more substituent groups; r1 is methyl, methoxyl, fluorine atom, chlorine atom, bromine atom or methyl ester group; r2 is the same or different and is methyl, ethyl, isopropyl, isobutyl, cyclohexyl, benzyl, n-butyl or n-hexyl; r3 is alkoxy, alkylthio, substituted amino or halogen; the palladium catalyst is a divalent palladium compound.

The application discloses a biological electrochemical auxiliary sulfur conversion promoting sulfur-based denitrification and sulfate emission reduction method and belongs to the field of water treatment. ‑ Nitrogen-containing wastewater enters an elemental sulfur denitrification system, and NO3 0 is reduced to N2 by sulfur autotrophic denitrifying bacteria, and elemental sulfur (S 2‑ ) is converted into SO4 2‑ . Effluent enters a cathode chamber of an electrochemical auxiliary sulfate reduction system, and hydrogen autotrophic sulfate reducing bacteria utilize cathode hydrogen production to reduce SO4 ‑ to HS 2‑ , and meanwhile, alkalinity produced by cathode hydrogen production neutralizes acidity produced in the denitrification process in the elemental sulfur denitrification system. ‑ HS 2‑ / supernatant is returned to the elemental sulfur denitrification system to react with S 0 to generate polysulfide (S n 2‑ ), S n 2‑ , which is used as an efficient electron donor to participate in denitrification, thereby significantly improving denitrification efficiency. The application does not need to add an organic carbon source, sludge production is small, high-concentration nitrogen-containing wastewater is efficiently treated, and the content of sulfate in effluent is simultaneously reduced, thereby realizing sulfur resource recycling, and the application is an economic and environment-friendly autotrophic denitrification method.

The invention belongs to the technical field of aquaculture tail water treatment, and discloses a marine aquaculture tail water denitrification device based on elemental sulfur conversion and a method thereof. According to the device, agricultural wastes or high-molecular polymers are added into elemental sulfur to form an anaerobic sulfenyl polyculture denitrification system, and the anaerobic sulfenyl polyculture denitrification system is used for bearing filler and water pressure through a bearing layer arranged from the bottom; a sulfur autotrophy and heterotrophy synergistic polyculture denitrification system is formed through a functional layer arranged in the middle, and the pH value in the polyculture denitrification system is maintained; and intercepting the fallen biological membrane and suspended matters through a filter layer arranged at the top. According to the invention, heterotrophic denitrification and sulfur autotrophic denitrification technologies are combined to form a solid-phase sulfur-based polyculture denitrification system, elemental sulfur is converted into polysulfide / sulfide, conversion of sulfur is promoted, biocompatibility is improved, denitrification efficiency is improved, starting time of equipment is shortened, and the problem of carbon source dependence is effectively solved.

The application discloses a kind of special sulfur-based compound fertilizer of leaf vegetable, preparation method and device, belong to compound fertilizer preparation technical field.The preparation of the compound fertilizer includes the following steps: sulfur, anhydrous ethanol are mixed and stirred, constant temperature oscillation, stand until clear state, take supernatant and mix with distilled water, oscillation, add sodium dodecyl sulfate, oscillation, add coating agent, oscillation, obtain material B, stand by;Ammonia is introduced into phosphoric acid to adjust to pH 4.3-4.8, filter pressing, collect filtrate to obtain feed liquid D;Material B is filtered, and the filter residue is collected and mixed with feed liquid D, guar gum and locust bean gum are added, oscillation is carried out, a mixed slurry is obtained, granulation is carried out, drying is carried out, screening is carried out, and cooling is carried out, to obtain the compound fertilizer, improve the sulfur and phosphorus ammonium slurry combination degree, avoid the loss of fertilizer efficiency, prevent the occurrence of safety hazards.

This invention relates to the field of catalyst technology, specifically to a latent epoxy resin curing catalyst with precisely controllable activity and its preparation method. The catalyst is 1-(2-(N-tert-butyl-N'-phenylurea)ethyl)-3-(2-(phenyldithio)ethyl)imidazolium, which simultaneously possesses an imidazolium ring catalytic active center, a thermally hindered urea bond, a temperature-responsive dynamic disulfide bond, and an intramolecular hydrogen bond unit. Precise control of catalytic activity is achieved through the synergistic effect of these triple dynamic bonds. The catalyst exhibits excellent storage stability at room temperature, rapid curing at activation temperature, and is free of metal ions. The cured epoxy resin exhibits good dielectric properties. This invention's catalyst achieves a balance between excellent latency and rapid curing performance through the synergistic control of these triple dynamic bonds. It possesses excellent dielectric and mechanical properties, can be compounded with various curing agents, and its preparation method is simple and easy for industrial production.

The application discloses a method for preparing a composite sulfur-based catalyst from waste nickel-cobalt-manganese ternary material and application thereof, and belongs to the field of lithium-oxygen battery catalysts. The method comprises the following steps: (1) dispersing waste ternary positive electrode powder in an aqueous solution of an organic acid to obtain a dispersion liquid, heating, adding an aqueous hydrogen peroxide solution, stirring, and performing suction filtration to obtain a leaching solution; (2) mixing thiourea, a surfactant and the leaching solution to obtain a reaction liquid; and (3) placing the reaction liquid and carbon cloth in a sealed container, reacting, cleaning, and drying to obtain a composite sulfur-based catalyst. The composite sulfide of the three transition metals (Ni, Co and Mn) recovered by the method has a catalytic effect on the charging process of a lithium-oxygen battery, and can greatly improve energy efficiency.

The present invention discloses a one-step method for preparing fluoromethyl thioester compounds from aromatic olefins. Under heating conditions, the aromatic olefin compounds are used as starting materials, fluoromethyl thiobenzenesulfonate is used as a fluoromethylthiolation reagent, and an oxidant, a catalyst, and an organic solvent are added for reaction to obtain the fluoromethyl thioester compounds. The method of the present invention uses inexpensive and readily available aromatic olefin compounds as starting materials, fluoromethyl thiobenzenesulfonate is used as a fluoromethylthiolation reagent that is stable at room temperature, a mild peroxide compound as an oxidant, a copper salt as a catalyst, and acetonitrile as a solvent. The corresponding fluoromethyl thioester compounds are obtained by heating the reaction in air for a certain period of time. This synthetic method features mild conditions, simple operation, environmental friendliness, a wide range of substrate applicability, and good functional group tolerance. Most importantly, it represents the first development of a new pathway for the direct synthesis of fluoromethyl thioesters from aromatic olefins.

The invention provides a preparation method of 2-acrylic acid 2-(2-naphthalenethio) ethyl ester, which comprises the following steps: (1) adding 2-thionaphthol, a first reactant and a catalyst into a first solvent, reacting at 110-140 DEG C for 4-10 hours, and washing with water to obtain 2-naphthyl sulfide ethanol; and (2) adding 2-naphthyl sulfide ethanol and a reaction aid into a second solvent, dropwise adding a second reactant, and reacting at 0-30 DEG C for 2-10 hours to obtain the 2-naphthyl sulfide ethanol, wherein the first reactant is 2-halogenated ethanol, ethylene oxide or ethylene carbonate and derivatives thereof; the second reactant is acryloyl chloride, alpha-methacryloyl chloride or a mixture of acrylic acid and phosphorus oxychloride. The preparation process is safe and simple, the cost is low, the reaction conditions are mild, the reaction polymerization can be effectively controlled, the post-treatment flow is simple, and industrialization is easy.

The invention discloses a Zn < 2 + >-lanthanide ion complex co-doped CIZS quantum dot and a method thereof. The method comprises the following steps: (1) preparing a multi-element sulfide quantum dot; (2) preparing a lanthanide ion complex; (3) preparing CIZS quantum dots coated with Zn < 2 + >; and (4) preparing the lanthanide ion complex doped CIZS (at) ZnS quantum dot. The luminescent property of the quantum dot is improved by utilizing rich f-f electron transition energy level of lanthanide elements and through additional absorbed light quantum energy transfer or through structure doping on the surface of the quantum dot. The key point is that the problem that the lanthanide ions (Ln < 3 + >) are difficult to dope the sulfenyl quantum dots is overcome in a breakthrough manner, so that the lanthanide ions (Ln < 3 + >) and the complex thereof are structurally doped and permeated to the CuInZnS quantum dots. The ZnS-coated lanthanide ion complex-doped CuInZnS quantum dot is prepared by the following steps of: performing Zn < 2 + > coating on the surface of the quantum dot under proper reaction conditions by selecting a combination of an organic small molecule ligand and lanthanide ions to form a lanthanide ion complex, and then introducing the lanthanide ion complex to obtain the ZnS-coated lanthanide ion complex-doped CuInZnS quantum dot.

This positive electrode mixture contains a conductive auxiliary agent which is a carbon material, a sulfur-based active material, and a sulfide solid electrolyte. A relaxation time T1 derived by 7Li-NMR is longer than 0.23 s and shorter than 0.41 s.

The invention discloses a preparation method and application of a sulfonyl-containing defect ternary donor-acceptor organic polymeric material. The material has excellent performance in the aspect of hydrogen production by photocatalytic decomposition of water. According to the present invention, 1, 3, 6, 8-tetra (4-formaldehyde phenyl) pyrene, 3, 7-diaminodibenzo [B, D] thiophene-5, 5-dioxide and trialdehyde phloroglucinol are adopted as synthesis precursors, and a Schiff base reaction is performed to obtain the sulfonyl-containing defect ternary donor-acceptor organic polymerization material; according to the ternary donor-acceptor structure and the double channels located at the defect, a channel for directionally and rapidly transferring current carriers is constructed, separation of electron hole pairs is accelerated, the migration rate of electrons is increased, the energy barrier of hydrogen production reaction is reduced, and meanwhile the hydrophilicity of the material is improved through sulfuryl. The material is stable in property, does not cause secondary pollution, can be recycled, and shows excellent performance of photocatalytic decomposition of water to produce hydrogen.

The invention provides an indole compound and a solar cell. The indole compound has a structural formula as shown in a formula (I). At least one of R1-R7 has a structure as shown in a formula (Hy1): L1 is any one of substituted or unsubstituted C6-C30 arylene, substituted or unsubstituted C3-C30 heteroarylene, substituted or unsubstituted C1-C30 alkylene, substituted or unsubstituted C1-C30 alkyleneoxy and substituted or unsubstituted C1-C30 alkylenesulfenyl, and R8 is any one of a phosphate group, a carboxylic acid group and a sulfonic acid group; when R1-R7 do not represent the structure represented by formula (Hy1), R1-R7 represent the structure represented by formula (Hy1); a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C1-C30 alkylthio group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylamino group, a substituted or unsubstituted C3-C30 heteroaryl group, a substituted or unsubstituted C3-C30 heteroarylamino group, a substituted or unsubstituted C3-, each independently selected from hydrogen, halogen, nitro, hydroxyl, substituted or unsubstituted C1-C30 alkyl group, substituted or unsubstituted C1-C30 alkoxy group, substituted or unsubstituted C1-C30 alkylthio group, substituted or unsubstituted C6-C30 aryl group, substituted or unsubstituted C3-C30 heteroarylamino group, substituted or unsubstituted C3- and C12 cycloalkyl is selected from any one of C12 cycloalkyl.

The present application relates to the fine chemical technology field, specifically to a kind of preparation of bis (4-tolyl sulfenyl) di-deuteromethane method.The domestic research and synthesis of bis (4-tolyl sulfenyl) di-deuteromethane are less reported, only a few foreign literatures provide corresponding preparation method.Aiming at the above problems, the present application provides a kind of preparation of bis (4-tolyl sulfenyl) di-deuteromethane method, the present application is reacted by 4-methyl phenyl sulfenol and 1-(chloro di-deuteromethyl)-1,4-diazabicyclo [2.2.2] octane-1-ammonium chloride in the acetonitrile solution containing HI, bis (4-tolyl sulfenyl) di-deuteromethane is successfully prepared, the synthetic route of the present application is simple and efficient, raw material is easy to obtain, and has good commercial value.

A liquid treatment composition for remediating and removing mercaptans, H2S and other sulfur based contaminants from contaminated hydrocarbon liquids, the treatment composition consisting essentially of a carrier solvent and at least one alkoxide compound. The liquid treatment composition may contain no terpene. Further, the liquid treatment composition may include water. The at least one alkoxide compound includes at least one of sodium methoxide and sodium ethoxide.

The present application relates to a process for the preparation of pyroxasulfone comprising reacting 3-[(5-difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl) methylthio]-4, 5-dihydro-5, 5-dimethylisoxazole with hydrogen peroxide in the presence of a metal catalyst wherein the solvent comprises at least one carbonate and water.

The invention relates to cyclotrithio-tri (2-mercaptoethylthio) mercaptan as shown in a formula I and a preparation method and application thereof. A two-step method of thio reaction and nucleophilic substitution is adopted. In the step I, thiourea is used as a sulfur source, epoxy atoms in trioxymethylene are replaced by sulfur atoms one by one under the condition of strong acid, and 1, 3, 5-trithiacyclohexane is generated. In the nucleophilic reaction of acid catalytic activation in the step II, 1, 3, 5-trithioxane and Lewis acid are subjected to coordination complexation firstly, one sulfydryl in dithiol serves as a nucleophilic reagent to attack an electrophilic carbon center of a ring-opening intermediate, a new C-S bond is formed, and a linear intermediate containing sulfydryl is generated; according to the process, three thiol groups are introduced in sequence step by step, and sulfur alkylation substitution is completed. The obtained product has the characteristics of high purity, high light transmittance and large refractive index, and can be used for preparing optical materials with ultrahigh refractive index and high light transmittance.

The present application relates to a kind of sulfur-based magnesium-containing autotrophic nitrogen and phosphorus removal biological carrier and its preparation method and application, belong to water deep processing field.The sulfur-based magnesium-containing autotrophic nitrogen and phosphorus removal biological carrier includes matrix material and active material distributed in the inside and / or at least part of surface of the matrix material;The matrix material includes elemental sulfur and sulfur compound;The active material includes basic magnesium-containing compound and / or mineral containing basic magnesium-containing compound.The sulfur-based magnesium-containing autotrophic nitrogen and phosphorus removal biological carrier has the ability of easy-to-use sulfur form by denitrification process and automatic adjustment system pH value, realizes deep denitrification and nitrogen removal, and the dissolved magnesium ion is transported into cell by improving ammonia nitrogen efficiency and forms phosphate precipitate, and the carrier is endowed with the function of efficient removal of ammonia nitrogen and phosphate.The sulfur-based basic magnesium-containing functional material provided by the present application is applied to deep processing or ecological buffer zone and other scenes, and can realize the coordinated deep removal of nitrate nitrogen, ammonia nitrogen and phosphate, and has wide application prospect.

The application provides an electrolyte and a battery comprising the electrolyte, wherein the electrolyte comprises a sulfuryl bipyridine compound as a first additive, the first additive has a lower LUMO orbital and a higher HOMO orbital, is easy to be oxidized and reduced, and generates an interface film on the surface of the positive and negative electrodes, the interface film has the characteristics of high inorganic component content, high stability, and rich in S atoms and N atoms, can improve the transmission efficiency of lithium ions, and thus can improve the cycle performance of the battery; meanwhile, the first additive and the pyridine derivative which has formed a film are easy to have a polymerization reaction under the limit working condition of thermal shock, delay the short circuit of the positive and negative electrodes, block the aggravation of the side reaction, and effectively improve the thermal shock performance.

Compositions including zinc salts of sulfur-based accelerators, combinations of zinc salts of sulfur-based accelerators, and golf ball cores made from such compositions are disclosed. The type and concentration of components in the composition affect the properties of cores made therefrom, including, for example, coefficient of restitution and compression, and, thus, can be used to produce golf balls having desirable performance characteristics.

This manufacturing method for a sulfur-based active material-electron conductive material composite includes mixing, stirring and heating a sulfur-based active material and an electron conductive material having pores in a single process.

The present invention addresses the problem of providing a light-emitting material which has a large band gap and exhibits thermally activated delayed fluorescence, and provides a fused ring compound which is characterized by being represented by general formula (1). Each R independently represents hydrogen or is selected from the group consisting of an alkyl group having 1-10 carbon atoms, an alkoxy group having 1-10 carbon atoms, an alkylthio group having 1-10 carbon atoms, an alkylamino group having 1-10 carbon atoms, an acyl group having 2-10 carbon atoms, an aralkyl group having 7-20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6-30 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 3-3 carbon atoms and a monovalent substituent in the 30 aromatic 6-membered heterocyclic group and adjacent substituents may be integrated to form a ring.

The invention relates to the technical field of carbon monoxide catalysts, in particular to a water-resistant sulfur-resistant Pt-based catalyst and a preparation method thereof. The catalyst is prepared by the method. The method comprises the following steps: S1, preparing a CZ carrier; step S2, loading an active component Pt; s3, doping an auxiliary agent lanthanide oxide to obtain the sulfur-resistant Pt-based catalyst, and S4, performing hydrophobic modification to obtain the water-resistant and sulfur-resistant Pt-based catalyst containing the hydrophobic layer. According to the present invention, the water-resistant and sulfur-resistant Pt-based catalyst resistant to sulfur dioxide and water vapor can be prepared, and the active component Pt in the catalyst is uniformly and firmly combined on the CZ carrier so as to solve the problem of catalytic activity reduction caused by Pt nano-particle migration and agglomeration under the gas flow impact effect of the steel plant high-temperature sintering flue gas.