17934 results about "Toluene" patented technology

A golf ball includes a hot-molded product of a rubber composition comprising a base rubber composed of (a) 20-100 wt % of a polybutadiene having a high cis-1,4 content, a minimal 1,2 vinyl content, and a viscosity η of up to 600 mPa·s at 25° C. as a 5 wt % toluene solution, and satisfying a certain relationship between Mooney viscosity and polydispersity index Mw/Mn, in combination with (b) 0-80 wt % of another diene rubber, (c) an unsaturated carboxylic acid, (d) an organosulfur compound, (e) an inorganic filler, (f) an organic peroxide, and optionally, (g) an antioxidant. The hot-molded product has a difference in JIS-C hardness between the center and surface thereof of up to 15 units. The composition and hardness characteristics of the hot-molded product provide the golf ball with a solid comfortable feel upon impact and an excellent rebound.

A process for preparing dimethylbenzene by aromatization of methanol relates to a process for preparing dimethylbenzene by conducting aromatization reaction in a methanol aromatization reactor with methanol and hydrocarbon as raw materials. The process uses a metal-modified molecular sieve composite material as catalyst and causes the mixture of methanol and one or a plurality of C1-C12 hydrocarbons to conduct aromatization reaction in the methanol aromatization reactor. By adjusting the ratio between methanol and hydrocarbons in the raw material, the process regulates and controls the coordination between aromatization and alkylation reaction and realizes the purposes of effectively improving the yield of the target product dimethylbenzene and prolonging the service cycle of catalyst.

The invention provides a thick coating material capable of purifying air and a preparation method thereof, belonging to the building material field. An internal wall coating decorative material comprises 5 to 40 weight portions of a porous absorbing material and 10 to 40 weight portions of a composite photocatalysis material in every 100 weight portion of the paint. In the preparation method, the coating material, is formed by compounding a mineral material with the nanometer photocatalysis material to obtain a high activity purifying material, matching the high activity purifying material with other nanometer materials and the porous absorbing material, and then adding an inorganic filling material, a skeletal material and other addition agents, can remove harmful gases such as formaldehyde and toluol in air and has the environmental protection function. The paint has good effect for removing formaldehyde, is effective continuously, has certain thickness when the coating layer is used, has simple construction, and beautiful and elegant patterns, is well-bedded, is strong in the three-dimension effect and has good decorative effect.

An electric smoking system includes a cigarette including a cylindrical tobacco web partially filled with tobacco material to define a filled tobacco rod portion and an unfilled tobacco rod portion, and an electric lighter. The wrapper includes a filler of ammonium-containing compounds effective to reduce the gaseous constituents of the smoke produced during smoking. The system includes a pilot burner including at least one heating vane and a controller adapted to control heating of the heating vane. The lighter is configured to at least partially contain the cigarette such that the heater blade heats the heating region of the cigarette. Manipulating the controller to limit the heating of the heater blades to a predetermined temperature range which allows the delivery of the smoke generated when the portion of the tobacco rod is heated while at least reducing the amount of smoke present in the smoke as compared to smoking a cigarette having only calcium carbonate as filler. A gaseous component. The gaseous components that can be reduced include carbon monoxide, 1,3 butadiene, isoprene, acrolein, acrylonitrile, hydrogen cyanide, 0-toluidine, 2-naphthylamine, nitrogen oxide, benzene, NNN, Phenol, catechol, benzanthracene and benzopyrene.

The invention provides non-naturally occurring microbial organisms having a toluene, benzene, p-toluate, terephthalate, (2-hydroxy-3-methyl-4-oxobutoxy)phosphonate, (2-hydroxy-4-oxobutoxy)phosphonate, benzoate, styrene, 2,4-pentadienoate, 3-butene-1ol or 1,3-butadiene pathway. The invention additionally provides methods of using such organisms to produce toluene, benzene, p-toluate, terephthalate, (2-hydroxy-3-methyl-4-oxobutoxy)phosphonate, (2-hydroxy-4-oxobutoxy)phosphonate, benzoate, styrene, 2,4-pentadienoate, 3-butene-1ol or 1,3-butadiene.

The invention discloses a catalyst for preparing aromatic hydrocarbon through methanol conversion. The catalyst comprises a component A and components B, wherein the mass ratio of component A to components B is 0.25-4; the component A is a modified zeolite molecular sieve and comprises 80-99wt% of molecular sieves and 1-20wt% of molecular sieve modifiers; the components B are oxide loaded metallic elements and halogen and comprise 85-95wt% of oxide, 0.5-10wt% of total metallic elements and 0.1-5wt% of halogen; and the component A and the components B are formed through squashing or extruding after being mixed uniformly. The catalyst has the following characteristics that: (1) the total recovery of benzene, toluene and xylene is higher and selectivity is high; (2) the raw material treatment capacity is large; (3) the non-aromatic hydrocarbon liquid product can serve as the solvent oil or gasoline component; (4) C4 hydrocarbon and non-aromatic hydrocarbon liquid phase products in the gas phase product can circularly enter into the catalyst bed layer, thus not only balancing the reaction heat but also improving the total recovery of the aromatic hydrocarbon; and (5) the catalyst has high activity and long life.

The invention relates to an indoor decorative material, in particular to a diatom internal wall coating with humidity-regulating and air-purifying functions and a preparation process thereof, and aims at overcoming the defects existing in the prior art and providing the diatom internal wall coating and the preparation process thereof, wherein the diatom internal wall coating has an excellent indoor air humidity-regulating function, can eliminate peculiar smell, preserve heat, reduce noise, remove harmful gases including formaldehyde, toluene and the like in the air, can continuously release negative oxygen ions, has a lasting environmental-protection function, a humidity-regulating function and the air-purifying function, and is rich in colors, strong in texture and environment-friendly. The diatom internal wall coating with the humidity-regulating and air-purifying functions and the preparation process of the diatom internal wall coating have the advantages that ingredients can be used after screened, weighed, evenly mixed in a grading mode, checked out and packaged. When the diatom internal wall coating is used, water is added into the coating to prepare a pasty or milky coating, and texture shape construction can be performed in a batch-coating, blade-coating or wipe-coating mode or in a roll-coating, spraying or brush-coating mode. An appropriate construction process can be selected according to the decorative requirements.

The present invention provides a hydrogenation method capable of converting cracked kerosene into the raw materials for petrochemical cracking having a high thermal decomposition yield by a hydrogenation reaction. The present invention is a petrochemical process for producing at least any of ethylene, propylene, butane, benzene or toluene by carrying out a thermal decomposition reaction at least using naphtha for the main raw material, wherein cracked kerosene produced from a thermal cracking furnace is hydrogenated using a Pd or Pt catalyst in a two-stage method consisting of a first stage (I), in which a hydrogenation reaction is carried out within the range of 50 to 180° C., and a second stage (II), in which a hydrogenation reaction is carried out within the range of 230 to 350° C., followed by re-supplying all or a portion of these hydrogenated hydrocarbons to a thermal cracking furnace.

A solvent deasphalting of crude oil or petroleum heavy fractions and residues is carried out in the presence of a solid adsorbent, such as clay, silica, alumina and activated carbon, which adsorbs the contaminants and permits the solvent and oil fraction to be removed as a separate stream from which the solvent is recovered for recycling; the adsorbent with contaminants and the asphalt bottoms is mixed with aromatic and/or polar solvents to desorb the contaminants and washed as necessary, e.g., with benzene, toluene, xylenes and tetrahydrofuran, to clean adsorbant which is recovered and recycled; the solvent-asphalt mixture is sent to a fractionator for recovery and recycling of the aromatic or polar solvent. The bottoms from the fractionator include the concentrated PNA and contaminants and are further processes as appropriate.

The invention provides a preparation method of dispersible silane functionalized graphene. The method comprises the steps of: conducting ultrasonic dispersion to graphene oxide in absolute ethyl alcohol so as to form a uniform graphene oxide dispersion solution, then adjusting the pH value to 3-4, or under the protection of an inert atmosphere, adding silane into the dispersing solution for modification, with silane and graphene oxide in a mass ratio of 0.1:1-5:1, continuing the reaction for 12h-48h at a temperature ranging from normal temperature to 78DEG C, carrying out centrifugation, then adding hydrazine hydrate to the obtained solid, performing heating reduction, and filtering the reaction solution, then washing and drying the filter cake, thus obtaining dispersible silane functionalized grapheme. The method of the invention is simple and practicable, and the obtained silane functionalized grapheme has good dispersibility in solvents like absolute ethyl alcohol, acetone, toluene, ethyl acetate, butyl acetate, and tetrahydrofuran (THF), etc.

A pair of organic Rankine cycle systems (20, 25) are combined and their respective organic working fluids are chosen such that the organic working fluid of the first organic Rankine cycle is condensed at a condensation temperature that is well above the boiling point of the organic working fluid of the second organic Rankine style system, and a single common heat exchanger (23) is used for both the condenser of the first organic Rankine cycle system and the evaporator of the second organic Rankine cycle system. A preferred organic working fluid of the first system is toluene and that of the second organic working fluid is R245fa.

The invention relates to a method for preparing a styrene catalyst through toluene-methanol side chain alkylation, which mainly solves the problem that in the prior art, a catalyst has a vulnerable catalyst structure and poor catalyst stability. Through the technical scheme that an alkali molecular carrier is loaded with elements selected from B, P and at least one of alkali metal and alkaline-earth metal to prepare the catalyst, wherein the carrier is exchanged into an H-type molecular sieve by ammonium salt before loading, roasted, exchanged by alkali metal salt, dried, roasted and dipped with the loaded elements, the method well solves the problem of poor stability and can be used for industrial preparation of the styrene catalyst through toluene-methanol side chain alkylation.

The invention discloses composite epoxy anticorrosive paint and a preparation method thereof. The composite epoxy anticorrosive paint is composited by a component A and a component B at a ratio of 2:1, wherein the component A comprises constituents as follows: organosilicon modified epoxy resin, a pigment, filler, a plasticizer, a dispersant, a coalescing agent and a antifoaming agent; the component B comprises constituents as follows: polyphenyl ether resin powder, styrene-butadiene rubber, toluene, a plasticizer, a coupling agent, auxiliary materials and a flame retardant; and the components A and B are mixed respectively for preparation, and B is sprayed on A to form the composite epoxy anticorrosive paint. The composite epoxy anticorrosive paint is prepared by two components, has superior high-temperature resistance and abrasion resistance as well as good adhesion and low shrinkage simultaneously, has good corrosion resistance and penetration resistance to water, medium acid, alkali and other solvents and further has superior flexibility and paint application simultaneously; and the preparation method of the composite epoxy anticorrosive paint is simple and low in cost.

The invention relates to the technology of metal material surface modification, in particular to a production method of bionic superhydrophobic surface of an aluminum alloy base, and aims to improve hydrophobicity of the aluminum alloy surface. The production method includes: pre-processing, namely washing aluminum alloy with absolute ethyl alcohol; subjecting the surface of the aluminum alloy to laser processing to obtain a plurality of micro-scale crater structures on the surface of a sample; immersing the sample in chemical etching solution to change morphology features of the surface of the sample, keep the surface to contain chemical elements different from the base, and form micro-nano double-layer hierarchical structure on the surface of the aluminum alloy; and after reaction, placing the chemically etched aluminum alloy sample in DTS-bearing (dodecyltrichlorosilane-bearing) toluene solution for modification so that a low surface energy film gradually forms on the surface. Therefore, the surface of the aluminum alloy in the micro-nano double-layer hierarchical structure has typical biological super-hydrophobicity and has typical petal-effect adhesion.

The invention discloses a preparation method for organosilicon, in particular relates to a preparation method of methyl-phenyl-vinyl silicone resin with high refractive index and high light transmission rate for packaging LED. The preparation method adopts the steps that the mixture of chlorosilane and toluene is added into the solvent which is composed of water and the toluene, the hydrolysis reaction is performed, then an amount of catalyzer is added into the silanol-toluene solution as hysrolysis product, the polycondensation reaction is performed, end capping reagent is finally added to perform the reaction, thus the objective product is obtained. The methyl-phenyl-vinyl silicone resin prepared by utilizing the method has the advantages of high refractive index, transparent clarification, radiation resistance, and high and low temperature resistance and weather resistance, thereby being especially suitable for the high modular basic glue in the packaging material for LED and expected to be applied in organosilicon material such as elastomeric sealant, pouring sealant, elastomoric adhesive and the like.

The invention provides a method for preparing synthetic leather and the synthetic leather prepared by the method. The method comprises the following steps: (1) coating slurry containing surface waterborne polyurethane resin on the surface of release paper, and drying to form a finishing coat; (2) mixing and foaming the slurry containing the foaming waterborne polyurethane resin with air by using a foaming machine, and coating the foamed slurry on the surface of the finishing layer, and drying to form a medium foaming layer; and (3) adhering the surface of the foaming layer and a basic fabric by using an adhesive containing waterborne polyurethane resin, and drying. The method uses the waterborne resin foaming layer to replace the Base leather manufacturing process, avoids using toxic and harmful organic solvents, such as dimetbyl formamide (DMF), toluene and the like, solves the pollution problem in the synthetic leather industry, and realizes clean manufacture of the synthetic leather.

The present invention relates to a process for working up or treating aqueous waste waters which are formed during the nitration of toluene to dinitrotoluene with nitrating acid. These aqueous waste waters containing acidic wash water and alkaline wash water from the dinitrotoluene washing step, and distillate from the sulfuric acid concentration step. The process comprises,

• • a) combining the acidic and alkaline waste waters from the washing step and the aqueous distillate from the sulfuric acid concentration step such that the resulting mixture has a pH below 5,
  • b) separating the aqueous and organic phases which are formed by phase separation,
  • c) subjecting the aqueous phase from b) to an extraction step, wherein
  • d) the organic components contained in the aqueous phase from c) are extracted with toluene, and
  • e) introducing the toluene phase enriched with the organic components into the toluene nitration.

The invention relates to an alkaline molecular sieve catalyst for preparing styrene, which mainly solves the problems that in the prior art, a catalyst has weak alkalescence, a vulnerable structure and poor stability. Through a technical scheme that an alkaline molecular sieve subjected to alkalis exchange is treated by ammonia under the condition of a temperature between 350 and 900 DEG C, the alkaline molecular sieve catalyst wells solves the problem and can be used in industrial preparation of the styrene catalyst through toluene-methanol side chain alkylation.

The invention relates to a 4,4'-bis[4-(2,4-diamidophenoxy)phenyl]biphenyl high-temperature-resistant epoxy adhesive and a preparation method thereof. The 4,4'-bis(2,4-diamidophenoxy)biphenyl high-temperature-resistant epoxy adhesive is composed of a component A and a component B, wherein the component A is a copolymer prepared by reacting 4,4'-bis(2,4-diamidophenoxy)biphenyl and epoxy resin; and the component B is a homogeneous transparent solution with the solid content of 15-30%, which is prepared by reacting 4,4'-bis(2,4-diamidophenoxy)biphenyl and aromatic dibasic acid anhydride in a strong-polarity non-proton organic solvent and toluene. The preparation method comprises the following step: evenly mixing the component A and the component B in a mass ratio of 1:(1-2) at room temperature. The preparation technique is simple; and the adhesive has excellent comprehensive properties, can be widely used for bonding steel, copper, aluminum or any other metal with ceramic, glass, resin-base composite material or any other substrate, and has favorable industrialization prospects.

The invention relates to a preparation method of an organic exhaust gas micro-emulsion absorption liquid, and a method for applying the micro-emulsion absorption liquid for cleaning industrial organic exhaust gas comprising benzene, toluene, xylene, and the like. The invention belongs to the technical field of atmosphere pollution control. The absorption liquid is prepared from the components of, by mass, 80-90% of water, 0.5-3% of a surfactant, 7-19.5% of a coupling agent, and 0.02-0.06% of an auxiliary agent. The surfactant is sufficiently mixed with water, such that a surfactant solution is obtained; the auxiliary agent is dissolved in water, such that an auxiliary agent solution is obtained; the two solutions are combined and uniformly mixed; and the coupling agent is added, and the obtained solution is stirred, such that the organic exhaust gas micro-emulsion absorption liquid is obtained. The organic exhaust gas micro-emulsion absorption liquid is suitable to be used for controlling exhaust gas containing benzene-series volatiles, and has the advantages of convenient raw material source, low cost, mild and stable property, low toxicity, environment-friendliness, no absorption tower corrosion or blocking phenomena, no severe influence to human health, high removal rate to organic exhaust gas, no need of pretreatment upon exhaust gas, and low investment and running cost. Saturated absorption liquid and absorbed organics can be recycled, such that waste can be turned useful.

The present invention relates to a solid catalyst component for olefin polymerization, and a catalyst thereof. According to the solid catalyst component, amorphous spherical dialkoxy magnesium is adopted as a carrier, toluene is adopted as a dispersing agent, the amorphous spherical dialkoxy magnesium contacts titanium halide at a certain temperature, and then reacts with a polyol ester compound with a special structure, wherein the polyol ester compound is adopted as an electron donor; then the resulting material is treated by the titanium halide to obtain the solid catalyst component, during the polymerization process, an organic aluminum compound is adopted as an assistant catalyst, and an silicone compound is adopted as a stereo structure directing agent. According to the present invention, the catalyst has high activity during the polymerization process, and the prepared polymer has characteristics of wide molecular weight distribution, good stereoregularity, good particle morphology and low powder content.