237 results about "O-dichlorobenzene" patented technology

In a toner having toner particles having at least a binder resin and a colorant, the binder resin in the toner contains at least i) a vinyl resin formed of a vinyl resin having at least a carboxyl group and a vinyl resin having at least an epoxy group, and having a cross-linked structure formed by the reaction of the carboxyl group of the former with the epoxy group of the latter, and ii) a copolymer having an aliphatic conjugated diene compound as a monomer component; and the binder resin in the toner has a THF-insoluble matter in a content of from 0.1% by weight to 60% by weight, and the copolymer having an aliphatic conjugated diene compound as a monomer component is incorporated in an o-dichlorobenzene-soluble matter of the THF-insoluble matter. This toner has superior developing stability and running performance in high-speed machines, and can keep fixing separation claws from contamination.

In a toner having a polyester resin as a binder resin component, and a colorant, the toner contains (a) in the binder resin component, from 20.0% by weight to 65.0% by weight of a tetrahydrofuran-insoluble matter A1 in 6-hour extraction and from 35.0% by weight to 80.0% by weight of a tetrahydrofuran-soluble matter A2 in 6-hour extraction, (b) in the binder resin component, from 10.0% by weight to 30.0% by weight of a tetrahydrofuran-insoluble matter B1 in 16-hour extraction and from 70.0% by weight to 90.0% by weight of a tetrahydrofuran-soluble matter B2 in 16-hour extraction, and (c) in the binder resin component, from 0.5% by weight to 3.0% by weight of an orthodichloro-benzene-insoluble matter C1 in 6-hour extraction at 185° C. and from 97.0% by weight to 99.5% by weight of an orthodichlorobenzene-soluble matter C2 in 6-hour extraction at 185° C. The proportion of C1 to B1, C1 / B1, is from 0.06 to 0.15, and the A1, B1 and C1 satisfy the following expression (1):A1>B1>C1.  Expression (1)A process cartridge makes use of this toner.

The present invention relates to an organic semiconductor thin film suitably employed in electronics, photonics, bioelectronics, or the like, and a method for forming the same. The present invention further relates to a solution for an organic semiconductor used to form the organic semiconductor thin film and an organic semiconductor device using the organic semiconductor thin film. The transistor of the present invention is manufactured by forming sequentially a gate electrode (2), an insulator layer (3), a source electrode and drain electrode (4, 4) on a glass substrate (5), applying thereto a 0.05% (by mass) solution of pentacene in o-dichlorobenzene and drying the solution to form an organic semiconductor thin film (1). The present invention provides a transistor with superior electronic characteristics because the organic semiconductor thin film (1), which can be formed easily at low cost, is almost free of defects.

This invention discloses a method for producing semitone fast violet RL. The method uses carbazole as the raw material, and comprises alkylating, nitrifying, reducing, condensing, ring closing and ball-milling. The method makes improvement on the present nitrifying and ring closing techniques. After improvement, the nitrifying technique has a short reaction time and a high recovery rate of solvent o-dichlorobenzene. The method has such advantages as little pollution, little harm to operators and stable product quality.

The invention provides a chloration method for phenoxyacetic acid and derivatives thereof, which comprises the following steps that: raw materials of the phenoxyacetic acid or the derivatives of the phenoxyacetic acid and chlorinating agents take reaction at a certain temperature in organic solvents under the effect of catalysts, wherein the chlorinating agents can be chlorine gas, sodium hypochlorite, calcium hypochlorite and sulfuryl chloride, the catalysts can be lewis acid and sulfurated substances, and solvents can be dichloromethane, dichloroethane, trichloromethane, carbon tetrachloride, formic acid, ethyl acetate, benzene, toluene, dimethylbenzene, chlorobenzene and o-dichlorobenzene. The method has the advantages that the operation can be carried out under the waterless condition, the generation of a large amount of industrial waste water is avoided, the used catalysts are safe and are easy to obtain, the solvents can be cyclically used, and the industrialization is easy.

The invention relates to a preparation method of a covalence organic framework material for detecting trace water in an organic solvent. The preparation method adopts a solvothermal method. The preparation method comprises the following steps: mixing 1,4-dihydroxy terephthalaldehyde, 2,4,6-tri(4-amino phenyl)-1,3,5-triazine, acetic acid, o-dichlorobenzene or mesitylene, and N,N-diethylacetamide, and ultrasonically uniformly dispersing; transferring a tube with a reaction solution to an environment with the temperature of 120 DEG C to react for 3d; and centrifugally separating obtained red solids, and alternately cleaning the separated solids by using tetrahydrofuran and dichloromethane, and then drying to obtain the needed covalence organic framework material. The preparation method has the advantages that the covalence organic framework material prepared by the method is high in crystallization degree, good in heat stability and chemical stability, stable in fluorescence performance, high in sensitivity to the trace water in the organic solvent, and can be reused for multiple times, so that an effective way is provided for detecting the trace water.

The invention provides a method for modifying a covalent organic framework material. The method comprises the following steps: (1) mixing 1,3,5-tris-(4-aminophenyl)benzene with 2,5-dioxymethyl-terephthalaldehyde, adding o-dichlorobenzene / n-butanol and an acetic acid catalyst, carrying out freezing-exhausting-unfreezing circulation for several times, carrying out flame sealing, heating, centrifugally collecting precipitates, washing, carrying out Soxhlet extraction, drying, and collecting powder, so as to obtain TPB-DMTA-COF; (2) adding 2-methyl-2-butene, a sodium chlorite water solution and glacial acetic acid into dioxane suspension liquid of the TPB-DMTA-COF powder, and stirring in a dark environment, so as to obtain purple solids; and (3) re-oxidizing the purple solids by virtue of thesodium chlorite water solution, and carrying out filtration separation, washing, drying, so as to obtain purple powder. The preparation method is simple, the synthesis conditions are easily controlled, and prepared O-TPB-DMTA-COF powder has a good glycopeptides enriching effect.

The invention relates to the field of methods for preparing medicinal intermediates, in particular to the field of methods for preparing key intermediates of quinolone medicines, and develops a method for coproducing the key intermediates of the quinolone medicines by using o-dichlorobenzene as a raw material. The method comprises the following steps of: nitrifying the o-dichlorobenzene serving as the raw material, and performing distillation, purification and stepwise crystallization to obtain 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene; performing fluoridation on the 2,3-dichloronitrobenzene to obtain 3-chloro-2-fluoronitrobenzene, performing chlorination to obtain 2,6-dichlorofluorobenzene, performing nitration to obtain 1,3-dichloro-2-fluoro-4-nitrobenzene, and finally performing fluoridation to obtain 2,3,4-trifluoronitrobenzene; and performing fluoridation on the 2,3,4-trifluoronitrobenzene to obtain 3-chloro-4-fluoronitrobenzene, performing chlorination to obtain 1,3-dichloro-4-fluorobenzene, and finally performing acylation reaction on the 1,3-dichloro-4-fluorobenzene and acetylchloride to obtain 2,4-dichloro-5-fluoroacetophenone.

The invention specifically relates to production equipment for refining hexamethylene diisocyanate and a method thereof. A stirrer is respectively arranged in the middle of the bottom of both a distillation column and a rectifying tower which are provided with a stirring device, and stirring wings are a frame type. The method for refining hexamethylene diisocyanate comprises the following steps: (1) letting an synthesized HDI solution enter a distillation column through a heat exchanger, starting a first vacuum pump, and starting a first stirrer in the column bottom while the agitation speed is less than or equal to 60rpm / min; Starting a first condenser on the tower top, evaporating all o-dichlorobenzene, continuously discharging by the distillation column and entering a mixing tank; and (ii) adding a DEIP solvent into the mixing tank, uniformly mixing crude HDI and the DEIP solvent according to the HDI-DEIP ratio of 1:1-1.5, sending the mixture into the rectifying tower to firstly evaporate mono-isocyanate chloride and continuously evaporate the HDI, drawing forth the DEIP for recycling, stirring high polymer residue in a heating vessel and discharging regularly, and carrying out burning treatment. The device and method provided by the invention can be applied in distillation separation and purification production technology which is easy to generate auto-agglutination phenomenon under the distillation condition.

The invention relates to a preparation method of bromoamine acid, which comprises the following steps: (1) sulfonation reaction: by using 1-aminoanthraquinone as a raw material, dropwisely adding chlorosulfonic acid into an orthodichlorobenzene solvent to carry out sulfonation reaction so as to obtain the sulfonated material containing sulfonated product, wherein the weight ratio of the 1-aminoanthraquinone to the orthodichlorobenzene is 1:(5-7), and the temperature of the sulfonation reaction is 115-150 DEG C; (2) stratification by adding dilute sulfuric acid: after the sulfonation reaction reaches to the end, directly adding 55-60 wt% dilute sulfuric acid into the reaction system until the sulfonated material stratifies, wherein the upper stratum is an orthodichlorobenzene organic phase which can be used repeatedly, and the understratum is a sulfuric acid solution of 1-aminoanthraquinone-2-sulfonic acid; and (3) bromination reaction: adding water into the understratum material obtained in the step (2) until the acidity reaches to 8-10%, and directly dropwisely adding bromine to carry out bromination reaction, thereby obtaining the bromoamine acid crude product. The invention greatly lowers the energy consumption; and the quality and yield of the bromoamine acid product are obviously enhanced.

Bis(halophthalimides) are prepared in mixture in an organic liquid such as ortho-dichlorobenzene or anisole, by a reaction at a temperatire of at least 150° C. between at least one diamine compound and at least one halophthalic anhydride in the presence of imidization catalyst. The reaction mixture is maintained at about 15% by weight solids content and rich in the halophthalic anhydride by constantly monitoring the reaction mixture using analytical methods such as high performance liquid chromatography. The product mixture may be directly employed in the direct preparation of polyetherimides, and similar slurries may be employed to prepare other polyether polymers.

The invention discloses a polymer photovoltaic material, a preparation method and use thereof. The molecule of the polymer material takes two-dimensional conjugate dibenzothiophene or naphtho-bithiophene as a donor, and takes thiophene and pyrrole diketone and derivatives thereof as receptors, and the polymer material has a structure shown in a formula (I) or a formula (II). The polymer material is simple in preparation and easy to purify, and has good solubleness in common organic solvents (for example, dichloromethane, trichloromethane, tetrahydrofuran, chlorobenzene or o-dichlorobenzene and the like). The film with high quality can be prepared by using a liquid method. The macromolecule is applied to a donor material of a solar battery, the energy conversion efficiency exceeds 7.5%, and the open-circuit voltage exceeds 1V.

The invention discloses a synthetic method of m-dichlorobenzene which is obtained by transposition in the presence of a catalyst by taking o-dichlorobenzene and / or p-dichlorobenzene as raw materials. The catalyst is a composite catalyst comprising a solid phase catalyst and a gas phase catalyst, wherein the solid phase catalyst is aluminum trichloride or halide of transition metal, and the gas phase catalyst is anhydrous hydrogen chloride or other anhydrous halogen acids. The raw materials have no limitation of water, have arbitrary ortho-para proportion and react under normal pressure; the solid catalyst has long service life, and the gas catalyst can be recycled after gas-liquid separation and has high conversion ratio; and the synthetic method can be used for large-scale industrial production. The process realizes the automatic control easily and has energy saving, safety, environment protection and low cost.

The invention discloses a preparation method of a conjugated three-dimensional porphyrin-based covalent organic framework material. The preparation method comprises the following steps: taking 3,3', 5,5'-tetra (4-formylphenyl) hexamethylbiphenyl (TFBM) and a series of porphyrin derivatives as raw materials, o-dichlorobenzene and n-butanol as solvents and acetic acid as a catalyst, and carrying outsolvothermal reaction for several days; after the reaction is finished, sequentially using DMF and THF for suction filtration and washing, carrying out soxhlet extraction for 24 hours, and carrying out vacuum drying to obtain purple black powder, namely the target product. For the first time, tetrahedral tetraaldehyde based on steric hindrance effect is used as a building block, so that the material has a fully conjugated three-dimensional skeleton structure, good thermal stability and chemical stability, and porphyrin units facing three-dimensional pore channels are used as single active catalytic sites, so that the material shows good application prospects in the field of bionic catalysis.

The invention discloses a complex function resin and process for preparation, and a method used for dealing with phthalate ester water body pollution. The process for preparation comprises the following procedures: swelling chlorine ball in the organic solvent; sulfonating in the mixing condition; getting the sulfonated chlorine ball after reacting; charging nitrobenzene or o-dichlorobenzene in order to swell in the air-tight condition after drying the sulfonated chorine ball; charging the accelerant in order to react; filtering the resin; washing the resin sequentially with distilled water, alcohol and chlorhydric acid 2%-5%; washing the resin with the distilled water until the washed water is neutral; getting the complex function resin. The specific surface area of the complex function resin is 900-1500m2 / g, the exchange capacity of corrosive acid is 2.1-5.5mmol / g, and the sulfonic group is distributed in the micropore section, the mesopore section and the big pore section of the resin. The complex function resin is applied to deal with water body polluted by phthalate ester. The invention solves the problem that the corrosive acid of the prior complex function resin is concentrated in the mescopore and the big pore of the resin and is distributed less in the micropore, which enhances the absorption effect of the resin for phthalate ester, and enhances the acid hydrolysis catalytic activity of the resin.

The invention mainly discloses a synthetic method of p-hydroxyacetophenone. According to the synthetic method, phenol and acetic anhydride are taken as raw materials so prepare phenylacetate; under catalytic action of aluminium trichloride, o-dichlorobenzene is added for reaction, steam distillation is carried out, active carbon filtration is carried out, and crystallization is carried out so as to obtain p-hydroxyacetophenone; and then p-hydroxyacetophenone is also prepared via two times of circular reaction of o-dichlorobenzene layer and phenylacetate, wherein the o-dichlorobenzene layer contains o-hydroxyacetophenone and is obtained via layering of a product of the former reaction. Compared with the prior art, the synthetic method possesses following advantages: side product suppression assistant circulating method (three times of continuous operation, and two times of circulation) is adopted, o-dichlorobenzene containing o-hydroxyacetophenone is used in circulation process, generation of o-hydroxyacetophenone in subsequent process is reduced effectively, p-hydroxyacetophenone yield is increased by 10% at least, and HPLC detection purity is 99.7% or higher. The synthetic method is capable of increasing p-hydroxyacetophenone yield, realizing reasonable cyclic utilization of side product, and reducing production cost, and is suitable for industrialized production.

The invention provides a method for synthesizing 3,4-dichloroaniline by using a micro-channel reactor. The micro-channel reactor is used for nitration and catalytic hydrogenation. The method comprisesthe following steps: nitration: preheating o-dichlorobenzene, mixing and preheating concentrated nitric acid and concentrated sulfuric acid, allowing the preheated materials to enter a reaction module group for a reaction and carrying out refining so as to obtain an intermediate 3,4-dichloronitrobenzene; and catalytic hydrogenation: dissolving 3,4-dichloronitrobenzene in a solvent, adding a Pd-loaded active carbon catalyst, adding a dechlorination inhibitor, then carrying out preheating, allowing a preheated product and hydrogen to enter a reaction module group for a reaction and carrying outpost-treatment so as to obtain 3,4-dichloroaniline. The method provided by the invention is good in material mixing effect, accurate in material proportion control, capable of improving reaction yield and product purity, safe and stable in reactions, short in synthesis time and free of amplification effect, and has good application prospects in industrial production.

The invention discloses a piezochromic material, a preparation method and applications thereof. The preparation method comprises the following steps: adding 3 grams of carbazole, 3.3 grams of p-bromobenzaldehyde, 3.7 grams of potassium carbonate, 0.33 gram of 18-crown-6, 0.4 gram of cuprous iodide, and 18 mL of o-dichlorobenzene into a round-bottom flask (100 mL); vacuumizing under freezing, introducing nitrogen into the round-bottom flask for three times, stirring at a temperature of 180 DEG C, carrying out reflux for 48 hours; repeatedly washing the reaction system by a hydrochloric acid solution (5%), using dichloromethane to carry out extraction for three times, using waterless magnesium sulfate to dry the product, performing rotary evaporation to remove the solvent, and finally carrying out column chromatography isolation to obtain 3.9 grams of pure product, wherein the yield is 80%.

The invention discloses a three-dimensional fluorescent covalent organic framework material as well as a preparation method and application thereof. A hexamethyl biphenyl aldehyde derivative and a series of pyrenylamine derivatives are used as raw materials, o-dichlorobenzene and mesitylene are used as solvents, acetic acid is used as a catalyst, and solvothermal reaction is carried out for several days. After the reaction is finished, suction filtration and washing are sequentially carried out by using DMF and THF, carrying Soxhlet extraction is carried out for 24 hours, and vacuum drying iscarried out to obtain yellow powder, namely a target product. Hexamethyl biphenyl tetraaldehyde based on a steric effect and pyrenyl tetramine with fluorescent property are used as construction monomers, the synthesized Turn-on type three-dimensional fluorescent covalent organic framework has a rich cavity structure and a conjugated three-dimensional skeleton, the aggregation-induced quenching effect of fluorophores is avoided, the sensitivity of host-guest response of the material is improved, the material has a good application prospect in the field of fluorescence sensing, and the three-dimensional covalent organic framework is applied to the field of VOCs molecular decoding for the first time.

One object of the present invention is to provide a polyethylene-base resin laminate having excellent properties in the transparency, blocking resistance, flexibility and the like, exhibiting heat resistance high enough to withstand a sterilization at 121° C., and being greatly improved in the impact strength of seal part as compared with conventional laminates; in order to achieve the object, the present invention provide a laminate having at least an inner layer, an intermediate layer and an outer layer, wherein said inner layer comprises a resin material (A) containing a high-density polyethylene, said intermediate layer comprises a resin material (B) mainly comprising Polyethylene-Base Resin I which is an ethylene.alpha-olefin copolymer obtained by copolymerizing ethylene with an alpha-olefin having from 3 to 20 carbon atoms and which has the following physical properties (a) to (d), and said outer layer comprises a resin material (c) containing a high-density polyethylene: (a) the density is less than 0.920 g / cm<3>, (b) the MFR is from 0.1 to 50 g / 10 min, (c) the amount X (% by mass) of o-dichlorobenzene-soluble portion at 25° C., the density d (g / cm<3>) and the MFR (g / 10 min) satisfy the following relationship: X<9.8X10<3>x(0.9300-d+0.008 logMFR)<2>+2.0 (d) the parameter Cb of the composition distribution is from 1.08 to 2.00.

The invention relates to a preparation method of a fullerene-polyimide conductive film, which comprises the following steps: (1) adding solvents of o-dichlorobenzene and ODA in a container, adding PMDA while stirring, reacting for 3 hours to generate a polyamide acid solution; (2) adding fullerene powder into the above solution, performing ultrasonic processing for 2 hours, keeping the temperature at 25-35 DEG C during the ultrasonic process to obtain a fullerene-polyamide acid solution; (3) spreading the above solution on a glass plate, strickling the film, removing the solvent of o-dichlorobenzene in a common baking oven, putting the film in a vacuum baking oven to realize complete imidization of fullerene-polyamide acid so as to obtain the fullerene-polyimide conductive film. The preparation method of the invention can reduce surface conductivity of polyimide, prevent static electricity, and extend the application scope.

The present invention provides a method for preparing relatively insoluble bisimides under conditions which afford high imidization reaction rates and which permit the monitoring and adjustment of reactant stoichiometry at any stage of the reaction. The bisimides provided by the present invention are prepared either by reaction of a diamine such as 4,4′-diaminodiphenylsulfone (DDS) with an anhydride, for example 3-chlorophthalic anhydride (3-ClPA) in the presence of a solvent at a pressure greater than one atmosphere and at a temperature above the normal boiling point of the solvent, or by reaction of a monoamine with a dianhydride under the same conditions. In one embodiment, the relatively insoluble product bisimides provided by the present invention have a solubility in ortho-dichlorobenzene of less than about 10 percent by weight at a temperature of about 180° C.

The invention discloses a method for preparing photocatalysts for degrading nitrogen oxide. The method has the advantages that the photocatalysts are mainly made of TiO2, benzidine, anhydrous THF (tetrahydrofuran), trihydroxy mesitylene formaldehyde, n-butanol, o-dichlorobenzene, Bi(NO3)3.5H2O and ammonium bromide, nanometer TiO2@COF porous materials are used as matrixes, and the photocatalysts with TiO2@COF coated by BiOBr oxide can be synthesized by the aid of in-situ deposition processes and are simple, stable and efficient novel BiOBr-TiO2@COF photocatalysts with visible light response capability; the method includes novel preparation processes, excellent visible light degradation effects can be realized by the photocatalysts, the cost can be reduced, pollution can be abated, and the method has a good application prospect and a good economic benefit in the aspect of organic pollutant decomposition.

The invention discloses a method for reducing COD (chemical oxygen demand) of permanent violet process wastewater and an application of the method and belongs to the technical field of pigment wastewater treatment. The method comprises the following steps: firstly, process wastewater is collected and treated in a classified manner according to specific pollutants of the wastewater: a nekal-bx-containing nitride washing wastewater is subjected to alkali regulating treatment, a flocculating agent is added for coagulating sedimentation, and an anionic surfactant is removed; layered wastewater produced through solvent o-dichlorobenzene recovery is subjected to alkaline hydrolysis and stripping; high-concentration wastewater containing triethylamine hydrochloride at a front section is separated from finished washing wastewater and subjected to alkali regulation and distillation, and triethylamine is recovered; secondly, the three parts of treated wastewater are mixed with other acidic wastewater for iron-carbon micro-electrolysis and Fenton oxidation coupled reinforced treatment. Classified collection and quality-divided treatment are performed according to features of the wastewater pollutants, the treatment process is safe and environment-friendly, wastewater treatment is targeted, refractory organics are removed to a greater extent, and the COD and total nitrogen content of the wastewater are reduced.

The invention discloses distillation equipment and method for separating dichlorobenzene isomers. The distillation equipment comprises a dividing wall tower, a tower kettle reboiler and a tower top condenser, wherein the dividing wall tower comprises a middle tower region, a tower top distillation section arranged above the middle tower region and used for performing distillation and separation on m-dichlorobenzene and p-dichlorobenzene, and a tower kettle stripping section arranged below the middle tower region and used for stripping and separating m-dichlorobenzene and o-dichlorobenzene; the middle tower region is divided into a pre-separation tower region and a finished product separation tower region by a baffle plate arranged in a longitudinal direction; the pre-separation tower region is parallel to the finished product separation tower region; the pre-separation tower region comprises an upper feeding distillation section and a lower feeding stripping section; the finished product separation tower comprises an upper m-dichlorobenzene / p-dichlorobenzene stripping section and a lower p-dichlorobenzene / o-dichlorobenzene distillation section. According to the distillation equipment, the dichlorobenzene isomers, namely the m-dichlorobenzene, the p-dichlorobenzene and o-dichlorobenzene can be separated in a distillation tower through the dividing wall tower, so that the energy consumption, the equipment investment and the occupied area are reduced.