163 results about "Hydrocarbon solvents" patented technology

The invention discloses a low-temperature curing PVC plastisol composition for a vehicle and a preparation method of the low-temperature curing PVC plastisol composition. The invention relates to a low-temperature curing PVC plastisol composition for vehicles, which is prepared from the following raw materials in parts by weight. Comprising 5 to 15 parts of polyvinyl chloride-vinyl acetate copolymer resin, 5 to 15 parts of homopolymerized PVC paste resin, 1 to 10 parts of blended PVC paste resin, 30 to 40 parts of a compound plasticizer, 1 to 10 parts of a hydrocarbon solvent, 0.5 to 1.5 parts of terminated polyurethane, 0.5 to 2 parts of polyamide, 0.5 to 1 part of a thixotropic agent, 30 to 45 parts of an inorganic filler, 1 to 5 parts of a stabilizer and 1 to 5 parts of a moisture absorbent. The compound plasticizer is prepared from diethylene glycol dibenzoate, isodecyl benzoate and diisononyl phthalate. The PVC plastisol composition disclosed by the invention is a low-temperature and short-time curing material, and can be cured under the conditions that the baking temperature is 125 DEG C and the baking time is 20 minutes.

The invention provides a method for preparing polyarylester by interfacial polycondensation, which comprises the following steps: dissolving a diphenol monomer in an alkali solution to prepare a bisphenol salt solution, and dissolving an interfacial catalyst in a bisphenol salt water phase to obtain a water phase; dissolving aromatic dicarboxylic acid acyl chloride in a halogenated hydrocarbon solvent to obtain an organic phase; s2, slowly adding the organic phase obtained in the step S1 into the water phase in a stirring state within 10-60 minutes, and continuously reacting for 10-120 minutes in the stirring state; the product is separated out in the form of precipitate, the precipitated precipitate absorbs the halogenated hydrocarbon solvent, so that a liquid phase main body is water, a solid phase is a muddy product containing the halogenated hydrocarbon solvent, and the obtained muddy product is filtered, washed and dried to obtain a powdery product. According to the method disclosed by the invention, the polymer is directly precipitated by controlling the solute concentration and the mixing ratio, so that the efficient in-situ removal of the solvent is realized, the solvent is directly separated from water through simple filtration, and'zero separation, zero crushing and zero distillation 'is realized.

A method for preparing 1,2-propanediol involves continuously reacting propene with hydrogen peroxide in the presence of a catalyst mixture, containing a quaternary ammonium salt and a polytungstophosphate, in a liquid reaction mixture containing an aqueous phase with a maximum apparent pH of 6 and an organic phase containing an alkylaromatic hydrocarbon solvent. The method then involves withdrawing the liquid reaction mixture from the reaction and adding a water-soluble sulfate salt or sulfuric acid to provide a mixture containing from 500 to 10,000 mg / kg of sulfate ions in the aqueous phase. The method further involves separating the mixture obtained into an aqueous phase (Pa) containing 1,2-propanediol and an organic phase (Po), recycling at least a part of the organic phase (Po) to the reaction, and recovering 1,2-propanediol from the aqueous phase (Pa). The method allows for extended operation of the reaction with little loss of tungsten and phase transfer catalyst.

A borate compound-containing composition soluble in hydrocarbon solvents. A composition containing base A, or a compound having a total carbon number of not less than 8 and represented by the formula (5):wherein R and R′ are each independently an optionally substituted C1-30 alkyl group, an optionally substituted C3-15 cycloalkyl group, or an optionally substituted C6-14 aryl group; anda borate compound represented by the following formula (1):wherein R1, R2, R3 and R4 are each independently a C6-14 aryl group substituted by one or more fluorine atoms or fluoro C1-4 alkyl groups; and[A-H]+ is a base A-derived cation. A method for producing a polymer, by polymerizing at least one kind of monomer selected from the group consisting of olefins and dienes by using the composition A as a cocatalyst.

Embodiments of a dual reactor solution polymerization process include: introducing a first feed comprising an ethylene monomer, optionally hydrogen, optionally a C3-C12 alpha-olefin comonomer, and a hydrocarbon solvent into a first polymerization reactor to produce a first reactor product comprising an ethylene-based polymer via solution polymerization at a temperature of 100 DEG C to 225 DEG C; and introducing the first reactor product and a two-phase second feed comprising an ethylene monomer, a hydrocarbon solvent, optionally hydrogen, and optionally a C3-C12 alpha-olefin comonomer to a second polymerization reactor to produce an ethylene-based polymer via solution polymerization, wherein the weight ratio of the sum of hydrocarbon solvent plus comonomer in the two-phase second feed to ethylene monomer is 0.1 to 2.0.

This application discloses an integrated cleaning device, relating to the field of cleaning equipment, comprising a frame; a loading rack installed at one end of the frame; a unloading rack installed at the other end of the frame; a transfer mechanism installed on the frame and used for transferring optical components; a hydrocarbon cleaning unit installed on the frame and adjacent to the loading rack, the hydrocarbon cleaning unit being used to clean optical components using hydrocarbon solvents; and an HFE cleaning unit installed on the frame and adjacent to the unloading rack. This application reduces the footprint by integrating the hydrocarbon cleaning unit and the HFE cleaning unit onto the frame; it reduces mutual interference and improves safety by physically isolating the hydrocarbon cleaning unit and the HFE cleaning unit with partitions; and it prevents large amounts of hydrocarbon solvent from entering the next process by using air knife purging, greatly reducing the contamination load of subsequent HFE solvents and minimizing cross-contamination.

The present invention relates to the technical field of battery component processing, and provides a Dyn hold cleaner for battery covers and a cleaning method. The cleaner is composed of components in the following mass percentages: 40% - 65% of a hydrocarbon solvent, 3% - 15% of an organic base, and 20% - 50% of a co-solvent. The hydrocarbon solvent is one of synthetic isoparaffins, dearomatized fluids, Fischer-Tropsch synthetic paraffins, isoparaffins, or refined C11. The organic base is one or more of monoethanolamine, triethanolamine, isopropanolamine, diethylene glycolamine, and 2-amino-2-methyl-1-propanol. The present invention can effectively remove various dirt such as stamping oil residues on the surface of the battery cover. After cleaning, there is no white spot residue on the cover surface, the cleaner does not corrode the workpiece, and there is no adverse effect on the appearance of the workpiece; the initial Dyn value after cleaning is greater than 54 mN / m, and the Dyn value remains undiminished after 15 days of storage. Fundamentally, the problem of Dyn attenuation on the surface of the workpiece during storage and turnover is solved.

The present disclosure describes compositions for restoring and protecting vinyl, rubber, and plastic (VRP) surfaces, wherein the compositions include at least two silicone fluids. In embodiments, the compositions include a first silicone fluid and a second silicone fluid, one or more mineral oils, one or more rheology modifiers, one or more hydrocarbon solvents, water, and optionally one or more preservatives. The present disclosure also describes a method of preparing the composition, wherein the method includes slowly adding the one or more hydrocarbon solvents to the water that is moving at a slow speed to form a solution, continuing mixing, and adding the one or more rheology modifiers to the solution and mixing, continuing mixing and adding to the solution in the following order: the one or more mineral oils; the first silicone fluid, the silicone second fluid, and optionally adding the one or more preservatives and continue mixing.

The application discloses a cleaning method of a cauldron for preparing aluminum trihydride, which comprises the following steps: (1) under an inert gas atmosphere, adding a polyhalogenated hydrocarbon solvent and an inorganic salt abrasive into the cauldron, and stirring intensively to grind off the wall-bonding substances in the cauldron; (2) emptying the cauldron, and slowly feeding a buffer solution into the cauldron through a bottom pipe in a vacuum-extraction mode, so that the buffer solution is immersed into the cauldron from the bottom of the cauldron; and (3) sequentially using dilute alkali, dilute acid and water to completely immerse the wall-bonding layer, and then washing the cauldron with water. The method can safely and effectively remove the wall-bonding substances on the cauldron.

A method including polymerizing a conjugated diene-based monomer, or the conjugated diene-based monomer and an aromatic vinyl-based monomer in a hydrocarbon solvent to prepare an active polymer; and reacting or coupling the active polymer with a modifier to prepare a modified conjugated diene-based polymer. Polymerization is initiated in the presence of a first polymerization initiator, and the polymerization reaction is performed by injecting a second polymerization initiator in at least one installment at a point where a polymerization conversion ratio is from 50% to 95%.

This invention belongs to the field of compound synthesis technology and provides a method for preparing lithium aluminum hydride. The method includes the following steps: mixing an organic solution of aluminum trichloride and an organic solution of lithium hydride to perform a displacement reaction, obtaining a mixture of lithium aluminum hydride; mixing the lithium aluminum hydride mixture with a hydrocarbon solvent and performing solid-liquid separation to obtain lithium aluminum hydride. Lithium aluminum hydride is insoluble in hydrocarbon solvents and precipitates out, further improving the yield of lithium aluminum hydride; simultaneously, unreacted aluminum trichloride dissolves in the hydrocarbon solvent, thereby increasing the main content of lithium aluminum hydride. The preparation process of this invention has high yield, stable product content, and is easy to implement and industrialize.

The application provides application of a hydrocarbon solvent in a full solid battery, a positive electrode sheet, a negative electrode sheet and a full solid battery. The full solid battery comprises a binder, the binder comprises a polyolefin binder and / or a styrene block binder, and the hydrocarbon solvent comprises paraffin and naphthene; the flash point of the hydrocarbon solvent is greater than or equal to 60 DEG C, and the distillation range of the hydrocarbon solvent is greater than or equal to 200 DEG C. The hydrocarbon solvent solves the problems of poor solubility and dispersibility of the polyolefin binder or the styrene block binder in the solvent, easy gelation, floating of the binder and reaction metamorphosis of sulfides in a processing process.

A room-temperature flowable dispersion of syndiotactic polybutadiene particles in an aqueous mixture containing at least one emulsifier. The dispersion reduces the need for temperature control equipment for storing or transporting the dispersion during processing. The syndiotactic polybutadiene particles in the dispersion are formed from a syndiotactic polybutadiene cement containing a hydrocarbon solvent obtained from a polymerization process, and the hydrocarbon solvent is subsequently removed from the dispersion by evaporation.

The application discloses a combustion-supporting and corrosion-preventing type colloidal magnesium-based heavy oil additive and a preparation method thereof. The heavy oil additive is prepared from the following components in parts by weight: magnesium oxide 50-80 parts, bentonite 10-15 parts, lime powder 5-10 parts, nano silicon dioxide 10-15 parts, basic copper chloride 5-10 parts, diaspore powder 10-15 parts, sodium dodecyl benzene sulfonate 2-8 parts, hydrocarbon solvent 2-8 parts, combustion-supporting dispersant 2-8 parts, and water 80-100 parts. The additive can inhibit the combustion of sulfur in the heavy oil to generate sulfur oxides, low-temperature sulfur corrosion and the synergistic corrosion of HCl. In the low-temperature section, the basic components such as lime powder react with HCl to generate salt compounds, neutralize the acidic substances in the flue gas, and significantly increase the pH value to above 8, thereby preventing the low-temperature dew point corrosion of the tail heating surface.

The present invention discloses an N^N^N type terpyridine platinum complex, its preparation method, and application. The present invention relates to the technical field of fluorescent probe material preparation, and specifically to an N^N^N type terpyridine platinum complex, its preparation method, and application. The present invention mixes 4'-(3,4-bisethoxyphenyl)-2,2':6',2''-terpyridine (S1) with K2PtCl4, adds a halogenated hydrocarbon solvent and an alcohol solvent, and conducts a heating reaction. After the reaction, the solvent is removed by reduced pressure distillation, and column chromatography is used for purification to obtain an N^N^N type terpyridine platinum complex. The preparation method of the N^N^N type terpyridine platinum complex of the present invention has readily available raw materials, a simple reaction process, and can be industrially produced. It has specific targeting to lysosomes, low cytotoxicity, and good two-photon absorption activity, and has good application prospects in lysosomal analysis and imaging products.

The invention discloses a method for preparing SAF through continuous hydrogenation of a bio-based aviation oil precursor and a hydrogenation reactor, and belongs to the technical field of preparation of sustainable aviation oil. The hydrogenation reactor comprises a dispersion kettle, a first-stage hydrogenation reaction kettle, a second-stage hydrogenation reaction kettle, a filter, a reaction product cooler, a split-phase tank and a rectifying tower which are sequentially connected in series; the method comprises the following steps: mixing an aviation oil precursor, a supplementary catalyst and a hydrocarbon solvent in a dispersion kettle to obtain a reaction solution, then conveying the reaction solution to a primary hydrogenation reaction kettle for hydrogenation saturation and hydrodeoxygenation reaction, conveying part of unreacted reaction solution to a secondary hydrogenation reaction kettle for hydrogenation saturation and hydrodeoxygenation reaction, and then outputting a reaction product, sequentially passing through a filter and a reaction product cooler to enter a split-phase tank, and separating to obtain an SAF crude product; and inputting the SAF crude product into a rectifying tower, and separating to obtain an SAF product. The production process is continuous, the product quality is stable, and the method is suitable for large-scale production of sustainable aviation oil by hydrogenation of a condensation body prepared from a bio-based platform compound.

The application discloses an interface control liquid for prelithiation electrodes, a preparation method and application, and the interface control liquid comprises a solvent and a metal salt; the solvent comprises one or more of an ether solvent, an ester solvent, a ketone solvent, a hydrocarbon solvent, a nitrile solvent or deionized water; the metal salt comprises one or more of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium bisoxalate borate, lithium bisfluorosulfonimide, lithium bistrifluoromethylsulfonimide, lithium perchlorate, lithium fluoride and lithium chloride; the concentration of the metal salt is 0.001 g / mL-10 g / mL; the prelithiation electrode is obtained by supplementing lithium to an electrode by a chemical prelithiation solution; the interface control liquid is used for modifying the prelithiation electrode, the metal salt of the interface control liquid reacts with the chemical prelithiation solution remaining on the surface of the prelithiation electrode, and a solid electrolyte layer containing inorganic lithium salt is generated on the surface of the prelithiation electrode; wherein, the content of the inorganic lithium salt is between 5% and 90%.

The present invention provides a method for producing hollow particles with high porosity and not easy to break. The method for producing hollow particles produces hollow particles having a shell containing a resin and a hollow part surrounded by the shell, and having a porosity of 50% or more. The method for producing hollow particles comprises: a process of preparing a mixed solution containing a first polymerizable monomer, a hydrocarbon solvent, a dispersion stabilizer, and an aqueous medium; a process of preparing a suspension containing droplets of a monomer composition of the first polymerizable monomer and the hydrocarbon solvent dispersed in an aqueous medium by suspending the mixed solution; a process of supplying the suspension to a polymerization reaction; the content of the crosslinking monomer in 100 parts by mass of the first polymerizable monomer is 75 to 100 parts by mass, and in the process of supplying the suspension to the polymerization reaction, when the polymerization conversion rate of the first polymerizable monomer reaches 93% or more by mass, a second polymerizable monomer having a solubility of 0.3 g / L or more in distilled water at 20° C. is added, and then supplied to the polymerization reaction.

The invention discloses a preparation method of an alkylaluminoxane solution, and belongs to the field of alkylaluminoxane preparation. The method comprises the following steps: firstly, performing vacuum drying on an aluminum hydroxide solid at high temperature to remove moisture adsorbed by the aluminum hydroxide solid; then dispersing aluminum hydroxide in an anhydrous hydrocarbon solvent under anhydrous and anaerobic conditions, adding a hydrocarbon solution of trimethylaluminum, and preparing alkylaluminoxo alkyl substrate through double decomposition reaction of the aluminum hydroxide and the trimethylaluminum; and respectively adding aluminum alkyl and inorganic salt hydrate into the alkyl aluminoxane base, reacting at a set temperature, and filtering to remove inorganic salt by-products after the reaction is completed, thereby obtaining the alkyl aluminoxane solution. The method disclosed by the invention is mild in reaction, high in yield and few in byproducts.

The method produces hollow particles which have a high void ratio, which can reduce the residual amount of a sparingly water-soluble solvent used in the production process, and which are less likely to collapse. The method for producing hollow particles which comprise a shell and a hollow portion and which have a void ratio of 50% or more and 90% or less, wherein a suspension treatment of a mixture liquid containing a polymerizable monomer for shell, a polar resin, a hydrocarbon solvent, a sparingly water-soluble inorganic metal salt as a dispersant, and an aqueous medium is carried out to prepare a suspension in which droplets of a monomer composition containing the polymerizable monomer for shell, the polar resin and the hydrocarbon solvent are dispersed in the aqueous medium; a polymerization reaction of the suspension is carried out; and the hydrocarbon solvent is removed from the obtained hollow particles.

Described herein are slurries comprising a solid electrolyte material, a hydrocarbon solvent, and a combination of binders, and methods of making the same. Additionally described are layers for electrochemical cells made from the slurries.

The present invention relates to the fields of synthesis of polymer materials and exploitation of oil and gas reservoirs, and discloses a water-soluble thermosetting resin, a preparation method thereof, a curable resin composition, an epoxy resin product and a preparation method thereof. The water-soluble thermosetting resin has a structure shown in Formula I: wherein, R1 is an alkylene group with 1 to 4 carbon atoms; A is wherein, R2 and R3 are each independently H, CH3, CF3 or CH2CH3; M1 and M2 are each independently H, K or Na, and at least one of M1 and M2 is H; 0 < m1 + m2 ≤ 8. This water-soluble thermosetting resin has a specific structure, and the epoxy resin product prepared therefrom has a low swelling rate in water and hydrocarbon solvents and a high pressure-bearing strength after a long time at high temperature.

The embodiment of the invention discloses a connector and a cleaning system. The system comprises a cleaning device and a drying device, the cleaning device is configured to perform ultrasonic cleaning on the connector by adopting a hydrocarbon solvent, and the drying device is configured to perform vacuum negative pressure drying on the connector subjected to vacuum ultrasonic cleaning, so that metal or non-metal particles on the surface of the connector can be well removed, and the cleaning efficiency of the connector is improved. Moreover, in the process of cleaning the connector, product deformation can be avoided, and meanwhile, all related characteristics of the connector are maintained, so that the value of the product is improved, the yield of the product is very high, and large-scale mass production is facilitated.

The present application provides a preparation method of an aromatic hydrocarbon oligomer, the preparation method including: subjecting an aromatic hydrocarbon compound to an oligomerization reaction under the catalysis of a chloroaluminate ionic liquid to obtain the aromatic hydrocarbon oligomer, where the oligomerization reaction is carried out in a solvent system, and the solvent is selected from chlorinated hydrocarbon solvents, and the aromatic hydrocarbon compound is selected from fused-ring aromatic hydrocarbons with 2 to 4 rings. The preparation method of the present application can efficiently prepare aromatic hydrocarbon oligomers with simple composition and narrow molecular weight distribution under mild conditions, thereby providing a high-quality precursor for the preparation of high-quality mesophase pitch.

The present invention relates to an efficient process for the preparation of highly active polymerization co-catalysts by reacting methylaluminoxane residues with C6-C18-alkyl aluminum compounds in the presence of a hydrocarbon solvent.

To provide a nonaqueous dispersion resin composition capable of forming a coating material excellent in weather resistance and pigment dispersibility, and a coating material containing the nonaqueous dispersion resin composition.SOLUTION: The nonaqueous dispersion resin composition contains an organic solvent containing a hydrocarbon solvent, and a nonaqueous dispersion resin having a core and a shell covering the core. The core is a polymer of the core polymerization component. The polymer of the core polymerization component is substantially insoluble in an organic solvent. The shell is a polymer of the shell polymerization component. The polymer of the shell polymerization component is soluble in an organic solvent. The shell has an acid number of at least 0. 5mgKOH / g and no greater than 4. 0mgKOH / g. Acid values of the non-aqueous dispersion-type resins are 0. 5mgKOH / g or more and 6. 0mgKOH / g or less. The amine value of the non-aqueous dispersion-type resins is 0. 2mgKOH / g or more and 4. 0mgKOH / g or less. The non-aqueous dispersion resin composition has a hindered amino group.SELECTED DRAWING: None

The invention discloses a preparation process for producing high-strength polyethylene fibers. The technological process comprises the following steps: mixing an ultra-high molecular weight polyethylene raw material and a halogenated hydrocarbon solvent in proportion, swelling and pre-dissolving by a first-step screw rod, dissolving by a second-step screw rod, filtering by a filter, pumping by a metering pump, spinning, cooling by chilled water, drying, carrying out gas-phase separation on the solvent, carrying out multi-stage drafting, and rolling according to the deep processing requirement of the fiber. The method has the beneficial effects that halogenated hydrocarbon is selected as a solvent, the swelling temperature of the stepped screw is reduced by about 40% compared with the temperature in the prior art, and the energy consumption is reduced; the extraction process is omitted, the equipment capital investment can be reduced by about 30%, the production cost can be reduced by about 40%, the production cost can be reduced by about 40% compared with the total production cost in the prior art, and the produced economic benefits are remarkable.

To provide a lightweight fiber-reinforced molded body. [Solution] A method for producing a fiber-reinforced molded article, comprising the steps of: preparing a mixture containing a first polymerizable monomer, a hydrocarbon solvent, a dispersion stabilizer, and an aqueous medium; preparing a suspension by suspending the mixture; and subjecting the suspension to a polymerization reaction, wherein the mixture contains a crosslinkable monomer as the first polymerizable monomer, the content of the crosslinkable monomer in 100 parts by mass of the first polymerizable monomer is 80 parts by mass or more, and when the polymerization conversion rate of the first polymerizable monomer reaches 93% by mass or more, a second polymerizable monomer having a solubility of 0.3 g / L or more in distilled water at 20°C is added and subjected to a further polymerization reaction to produce hollow particles; preparing a resin composition containing the obtained hollow particles, a matrix resin, and a solvent; and impregnating reinforcing fibers with the resin composition.

The invention belongs to the field of cleaning agents, and particularly relates to a hydrocarbon cleaning composition and a preparation method thereof. The invention discloses a hydrocarbon cleaning composition which comprises the following raw materials in parts by weight: 40-60 parts of a hydrocarbon solvent; 28-36 parts of an alcohol ether solvent; 1 to 12 parts of a surfactant; 0.5-2 parts of fatty alcohol ether sodium sulfate; 2-6 parts of a phosphate ester substance; the surface active agent comprises isomeric alcohol polyoxyethylene ether and a fluorine-containing surface active agent. The hydrocarbon cleaning composition combines a hydrocarbon solvent, an alcohol ether solvent, a surfactant, fatty alcohol ether sodium sulfate and phosphate ester substances, and has remarkable advantages in the aspect of semiconductor cleaning. The cleaning agent can efficiently remove particulate pollutants (such as particles and metal scraps on a silicon wafer), can deeply clean a slit structure (such as a high-aspect-ratio groove), does not damage the surface of a chip, considers the material safety and environmental protection requirements, and is suitable for front-end and rear-end cleaning processes in semiconductor manufacturing.

The embodiment of the invention provides a bearing retainer cleaning control method and device, and relates to the technical field of cleaning equipment.The method comprises the steps that a hydrocarbon solvent is stored through an extraction bottle of a Soxhlet extractor, a cooling system is started to cool and circulate cooling water, the hydrocarbon solvent is vaporized, the vaporized hydrocarbon solvent enters a condenser, and the vaporized hydrocarbon solvent enters the condenser; after being liquefied, the liquid hydrocarbon solvent is dropped into an extraction tube, a siphon of the extraction tube siphons the liquid hydrocarbon solvent into an extraction bottle to extract the bearing retainer, and a cooling system is controlled to be started or stopped according to the current temperature until the bearing retainer is cleaned; and after cleaning is completed, optical surface detection, geometric dimension detection and the like of the bearing retainer are carried out through the bearing retainer quality detection module. According to the embodiment of the invention, the cleaning degree of the retainer is improved, the damage to the mechanical structure and the surface quality of the retainer is avoided, independent work of a plurality of sets of extraction systems can be simultaneously realized, the cyclic utilization of the extraction solvent is realized, and the use efficiency of the extraction solvent is improved.