57 results about "Chlorinated phenols" patented technology

A monomeric adhesive composition includes a polymerizable monomer, such as a 1,1-disubstituted monomer such as a cyanoacrylate, and an antimicrobial agent, wherein the antimicrobial agent is a phenolic active compound. Examples of suitable phenolic active compounds include halogenated phenol compounds such as chlorinated phenol compounds (such as triclosan) and brominated phenol compounds.

The invention provides a photochemical catalysis and degradation method of chlorinated phenols in water by utilizing Fe<0> / TiO2, belonging to the field of water deep disposal and photocatalytic material technique. The method aims at avoiding the problems of low degradation efficiency by traditional physical chemistry method, chemistry method and biology method and slow degradation speed and incomplete degradation by using pure zero valence iron or TiO2 during the process of removing the chlorinated phenols in water. The method is characterized in that nanometer zero valence iron mixed with TiO2 is prepared by a chemical reduction method; and photocatalytic reaction degrades the chlorinated phenol effectively, avoids forming other hazardous and noxious intermediate product, and finally obtains the end products without chlorinated phenol or even no phenols. The method has the effects and benefits that a novel photocatalyst, the preparation method thereof and a method used for photochemical catalysis and degradation of chlorinated phenols contamination in water with high efficiency are provided; and the catalyst is cheap and has high efficiency. The invention can be widely used for the purification of photolytic composite and water and the removal of contamination such as chlorinated phenols.

The invention relates to a metal-loaded magnetic carbon material catalyst and a method for catalyzing dechlorination of chlorinated phenol through the metal-loaded magnetic carbon material catalyst, and belongs to the field of organic synthesis and catalytic reaction. The metal-loaded magnetic carbon material catalyst and the method for catalyzing dechlorination of the chlorinated phenol through the catalyst are provided. The metal-loaded magnetic carbon material catalyst is a compound obtained by loading Fe3O4 and active metal elements on a carbon material, wherein the carbon material is activated carbon or carbon nano tubes or graphene, and the active metal elements are one or two of platinum, palladium and rhodium. The preparation steps of the catalyst are simple, reduction is carried out simultaneously in the preparation process of the catalyst, and the reduction step is omitted. The catalyst has terrific hydrodechlorination performance on the chlorinated phenol and is used for dechlorination of the chlorinated phenol, reaction conditions are milder, no inorganic or organic additive is added to a reaction system, and the catalyst can be recycled.

The invention relates to a degradation processing process of chlorinated phenol, particularly to application of sodium persulfate in the degradation processing process of the chlorinated phenol, and belongs to the technical field of environmental management. In the method of the invention, the chlorinated phenol is degraded in the degradation process under the condition of ensuring the existence of Na2S2O8; and meanwhile, H2SO4 or NaOH is added, and the pH value of a processing system is regulated to be 1.0-9.0. The invention is simple and easy to operate and has remarkable effect; and the removal rate of the chlorinated phenol is high, and the removal rate of 2, 4-dichlorophen is as high as 99.76 percent.

Disclosed are a disperse dye composition, and a preparation method and application thereof. The disperse dye composition comprises a component A composed of one or more of compounds shown as a formula (1) (please see the specifications for the formula), a component B composed of one or more of compounds shown as a formula (2) (please see the specifications for the formula), forbidden aromatic amine compounds, chlorinated phenols, chlorobenzene and chlorotoluene, optional auxiliaries, and other unavoidable impurities. The total content of the forbidden aromatic amine compounds is 10 ppm or below, the respective content of the various chlorinated phenols is 0.5 ppm or below, and the total content of the chlorobenzene and chlorotoluene is 1 ppm or below. The various environment protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100(2016). In addition, after fabric is dyed through the disperse dye composition, the dyed fabric meets the baby level requirements of Oeko-Tex Standard 100(2016).

The invention provides a surface iron modified titanium dioxide photocatalyst comprising titanium dioxide powder and / or film, wherein a highly-dispersive iron oxygen compound is contained in the surface of the titanium dioxide powder and / or film. The invention also provides a preparation method of the photocatalyst, comprising the steps of: adsorbing the iron phthalocyanine in a solution to the surface of the titanium dioxide through taking pre-burnt titanium dioxide as a titanium source, taking macromolecule iron phthalocyanine with different substituent groups as an iron source and taking water-organic solvent as a mixed solvent, firing at a specific temperature so as to destroy a ring structure of phthalocyanine, removing carbon, nitrogen, oxygen and hydrogen elements except the iron element in iron phthalocyanine molecule and finally obtaining the composite photocatalyst. The invention also provides application of the photocatalyst and the photocatalyst can be used for degrading phenol and chlorinated phenol organics by utilizing ultraviolet light. The photocatalyst provided by the invention has the advantages that raw materials are easy to get, the preparation method is simple, compared with a blank titanium dioxide photocatalyst, the iron modified titanium dioxide photocatalyst has obviously increased activity and the stability of the photocatalyst is good to ensure thatphenomenons of salvation and form transition of iron do not happen in reaction processes.

The invention discloses a preparation process of chlorinated phenol; phenol is used as a raw material, a mixture of arbitrary one of diphenyl sulfide and dimethyl sulfide, arbitrary one of acetic acid and toluene sulfonic acid and arbitrary one of aluminum trichloride and ferric trichloride is used as a catalyst, a chlorinated phenol crude product is generated through sulfuryl chloride chlorination, and a target product is obtained by melt crystallization. The mixed catalyst used in the reaction has a positioning function, the content of p-chlorophenol in the monochlorophenol mixture generated from the reaction is greater than 83%, the content of 2,4-dichlorophenol in dichlorinated phenol generated from the reaction is greater than 98%, the amount of trichlorinated phenol impurities generated from the reaction is reduced, and 2,4,6-dichlorophenol with the content greater than 99% and the total yield more than or equal to 98% is obtained without purification treatment; moreover, energy consumption is greatly reduced, and high-content p-chlorophenol and high-quality 2,4-dichlorophenol can be produced at the same time.

The invention discloses a method for detecting phenolic antibacterial agents in textiles through the combined use of in-situ derivatization, dispersive liquid phase microextraction and gas chromatography / mass spectrometry. A technical program suitable for the simultaneous detection on five types of chlorinated phenols and o-phenylphenol in the textiles is established, a target compound is extracted by utilizing a dispersive liquid phase microextraction technology after being subjected to extraction and derivatization, and qualitative and quantitative analysis is carried out by using a gas chromatograph / mass spectrometer. The method can be applicable to the determination of the five types of chlorinated phenols and o-phenylphenol in the textiles such as clothes, fiber packing, yarns, clothing materials and household decoration products. The method is simple and rapid to operate, low in cost, environment-friendly and high in enrichment efficiency.

The invention discloses a disperse dye composition as well as a preparation method and an application thereof. The disperse dye composition comprises a component A consisting of one or more of compounds shown by formula (1), a component B consisting of one or more compounds shown by formula (2), forbidden aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, optional accessory and other unavoidable impurities, wherein the total content of the forbidden aromatic amine compound is below 10ppm, the total content of chlorinated phenol of each kind is below 0.5ppm, and the total content of chlorobenzene and chlorotoluene is below 1ppm. The environmental protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100 (2016); and the properties such as washing fastness after dyeing are excellent. Moreover, by adopting the disperse dyeing composition disclosed by the invention for dyeing, the dyed fabric meets the baby-level requirements of Oeko-Tex Standard 100 (2016).

The invention discloses a preparation process of 2,4-dichlorophenol. The preparation process comprises the following steps: chloridizing phenol or o-chlorophenol serving as a raw material and a mixture which is prepared from boric acid, phenyl sulfide and ferric trichloride and serves as a catalyst to generate a 2,4-dichlorophen coarse product, and rectifying the coarse product to obtain a target product. The mixed catalyst used in the reaction has a positioning effect, so that the content of p-chlorophenol in a chlorinated phenols mixture generated by the reaction is greater than 65 percent, the content of the 2,4-dichlorophenol in di-chlorophenol generated in the reaction is greater than 95 percent, the number of di-chlorophenol impurities generated in the reaction is reduced, and the 2,4-dichlorophenol with the content greater than 99.5 percent and the total yield of 95 percent or above can be obtained by rectification treatment; furthermore, the reaction yield is greatly increased, and the yield of the p-chlorophenol is also increased.

The invention relates to a disperse dye composition and a preparation method and application thereof. The disperse dye composition comprises a component A as shown in formula (1), a forbidden aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, any auxiliary materials and other unavoidable impurities. According to the disperse dye composition, the total content of the forbidden aromatic amine compound is 10ppm or lower, the total content of each chlorinated phenol is 0.5ppm or lower, and the total content of chlorobenzene and chlorotoluene (COCs) is 1ppm or lower. Various environment-protective indexes of the disperse dye composition conform to the requirement of Oeko-Tex Standard 100 (2016), and various performance such as the fold strength, sublimation fastness and the like is excellent. Furthermore, after the disperse dye composition of the invention is used for dyeing a fabric, the dyed fabric conforms to the requirements of a baby level of the Oeko-Tex Standard 100 (2016). (Shown in the description).

The invention discloses a method for producing 2,4-dichlorphenoxyacetic acid. The method comprises the following steps of: etherifying, dehydrogenating and oxidizing phenol and epoxy ethane in the presence of an oxidation catalyst to generate phenoxy acetic acid; dissolving the phenoxy acetic acid in a mixed solvent; making the solution react with chlorine in the presence of a chlorination catalyst; and cooling, crystallizing, filtering and drying to obtain the 2,4-dichlorphenoxyacetic acid. The method has the advantages of easiness for operation, avoidance of dioxin which is an extremely toxic substance and chlorinated phenol which is a smelly substance during production, high environmental friendliness, small amount of waste water and small treating amount of three wastes; the product has high yield and good quality; and the content of active ingredients is over 98.6 percent.

A disperse dye composition and a preparation method and use thereof are disclosed, the disperse dye composition comprises a component A, a banned aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, optional accessories, and other inescapable impurities, the component A comprises one or more compounds of compounds shown as formula (1), the total content of the prohibited aromatic amine compound is 10ppm or below, the total content of various types of the chlorinated phenol is respectively 0.5ppm or below, and the total content of the chlorobenzene and the chlorotoluene is 1ppm or below. All environmentally-friendly indicators of the disperse dye composition meet the requirements of Oeko-Tex Standard 100 (2016). In addition, after a fabric is dyed with the disperse dye composition, and the dyed fabric meets the baby level requirements of the Oeko-Tex Standard 100 (2016).

The invention relates to a preparation method of a palladium(Pd) catalyst loaded in hollow mesoporous silicon nanocapsules, which is a method for loading Pd catalyst active components to the inside ofa hollow mesoporous carrier in a dispersing way to overcome defects of the Pd catalysts of the prior art. According to the method, Pd nano-particle loaded carbon nano tubes (Pd / CNTs) are taken as templates, the surfaces of the Pd / CNTs are coated with mesoporous silicon, the CNTs are removed by means of roasting, and thus the Pd catalyst loaded in hollow mesoporous silicon nanocapsules is obtained. Through the hollow mesoporous structure, gas-phase and liquid-phase reactant molecules enter or exit the shell effectively to contact the Pd active components; thus, correlated chemical reactions, such as hydrodechlorination of chlorinated phenol, hydrogenation reaction of aldehydes, hydrogenation reaction of nitro-compound, Suzuki coupling reaction, hydrogen production by catalyzing formic acidor ammonia borane, are catalyzed under high activity of Pd. But above all, the Pd catalyst loaded in hollow mesoporous silicon nanocapsules is capable of preventing loss of the nano particles of Pd active components effectively.

The invention relates to a disperse dye composition, and a preparation method and application thereof. The disperse dye composition comprises a component A formed by one or more of compounds shown in formula (1), a forbidden aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, any auxiliary materials and other unavoidable impurities. According to the disperse dye composition, not only are various environment-protective indexes conform to the requirements of Oeko-Tex-Standard 100(2016), but also the total content of the forbidden aromatic amine compound in a dye composition chemical product for dyeing is 10ppm or lower, the total content of each chlorinated phenol is 0.5ppm or lower, and the total content of chlorobenzene and chlorotoluene (COCs) is 1ppm or lower. The sewage after the dyeing also can meet the environmental protection requirement; and meanwhile, the use is more convenient and secure. (Shown in description).

The present invention provides an antiviral composition and system for using the same, wherein the antiviral composition includes between about 0.1 to about 0.3 wt % of antimicrobial agent such as benzalkoniumchloride, between about 0.1 to about 1 wt % of chlorinated phenol compound, such as parachlorometaxylenol, between about 0.1 to about 3 wt % of hydrogen peroxide, and at least about 60 wt % aqueous solvent.

The present invention provides an antiviral composition and system for using the same, wherein the antiviral composition includes between about 0.1 to about 0.3 wt % of antimicrobial agent such as benzalkoniumchloride, between about 0.1 to about 1 wt % of chlorinated phenol compound, such as parachlorometaxylenol, between about 0.1 to about 3 wt % of hydrogen peroxide, and at least about 60 wt % aqueous solvent.

The invention discloses a method for detecting chlorinated phenols in dyes, comprising the following steps: first, obtaining a liquid phase by mixing a sample of a dye to be tested with acetic anhydride; then adding a sample internal standard after adding a mixed solvent to form a homogeneous solution; and next, performing extraction by adding an aqueous solution of sodium sulfate, and passing thesupernatant obtained by the extraction through a gas chromatography-mass spectrometry after centrifugation and filtration separation to detect the content of the chlorinated phenols. The detection method of the invention can overcome the problem of quantitative misjudgment caused by the connected peaks of the chromatogram integration of dichlorophenol and trichlorophenol.

The invention provides an N-doped graphene loaded Pd catalyst, and belongs to the technical field of chlorinated phenol catalyzed dechlorination environmental protection. The catalyst takes N-doped layered graphene as a carrier and a metal Pd as an active component, and the metal Pd accounts for 0.1-9% of the weight of the whole catalyst. The invention further provides a preparation method and anapplication of the catalyst. The preparation method includes the steps: dissolving metal Pd compounds and nitrogen compounds in alcohol; stirring mixture, adding the graphene, and continuing to stir mixture; cooling the mixture to reach the indoor temperature, and performing high-temperature reduction after vacuum drying until a loaded metal element palladium reach zero valence to obtain the N-doped graphene loaded Pd catalyst. The catalyst is mild in reaction condition when being used for chlorinated phenol dechlorination, the chlorinated phenol can be completely dechlorinated at normal temperature and normal pressure, the catalyst is good in stability, the chlorinated phenol with high concentration can be catalyzed and dechlorinated by the catalyst, and reactant concentration can reach 3.0g / L when the chlorinated phenol catalyzed and dechlorinated by the catalyst prepared by the method.

The invention provides an orange disperse dye composition, an orange disperse dye and a preparation method and application of the orange disperse dye. The orange disperse dye composition comprises: acomponent A as shown in a formula (I), a component B as shown in a formula (II) and a component C as shown in a formula (III). The contents of chlorobenzene, toluene chloride and chlorinated phenols in the orange disperse dye composition disclosed by the invention all meet the requirements of Oeko-Tex Standard 100 and the requirements of European Union Reach regulations, and the orange disperse dye composition is an ecological and environment-friendly disperse dye composition. The orange disperse dye composition can reduce the production cost, reduce the dyeing sewage and effectively make up for the deficiency of disperse orange 30 in the market.

The invention belongs to the field of analytical chemistry, and relates to a detection method of chlorinated phenols in a textile through hollow fiber liquid-phase microextraction. The detection method comprises the steps of extracting a sample by using acetone, after concentrating an extracting solution to nearly dry, dissolving by using normal hexane to obtain a solvent, then taking a porous hollow fiber tube as a carrier of microextraction solvent, and transferring all extracted solvent into a high performance liquid chromatograph for subsequent assay determination. The detection method provided by the invention has the advantages that a hollow fiber tube liquid-phase microextraction method is adopted, namely, the hollow fiber tube is taken as the carrier of the microextraction solvent, the extraction, gathering, separation and purification are integrated into a whole, the extraction efficiency is high, the organic solvent consumption is less, the extraction is fast and sensitive, and the like; according to experiment results, the recovery rate and precision of the method both satisfy the demands, and the method can be used for the detection of chlorinated phenol mildew preventives in the textile, and has wide application prospect.

A synergistic microbicidal composition containing a phenolic compound selected from the class consisting of chlorinated phenols, monosubstituted phenols, fused bicyclic phenols, isopropyl methyl catechols, and monosubstituted catechols and an antimicrobial alcohol selected from the class of menthadiene alcohols and other antimicrobial alcohols.

A process for preparing a fluorinated poly(arylene ether) comprising the repeating unit:wherein n provides a molecular weight up to about 30,000 to 100,000, X represents one of following groups: none, ketone, sulfone, sulfide, ether, hexafluoroisopropylidene, αω-perfluoroalkylene, oxadiazole, and Y is 4,4′-(hexafluoroisopropylidene)-diphenyl, 4,4′-isopropylidene diphenyl, 3,3′-isopropylidene diphenyl, phenyl, or chlorinated phenol which process comprises reacting a bis(pentafluorophenyl) compound and a bisphenol or hydroquinone in the presence of a dehydrating agent and a polar aprotic solvent is disclosed. Polymers resulting from the process show good promise as new passive optic polymer waveguide materials.

The invention belongs to the field of analytical chemistry, and relates to a detection method of chlorinated phenols in a textile through hollow fiber liquid-phase microextraction. The detection method comprises the steps of extracting a sample by using acetone, after concentrating an extracting solution to nearly dry, dissolving by using normal hexane to obtain a solvent, then taking a porous hollow fiber tube as a carrier of microextraction solvent, and transferring all extracted solvent into a high performance liquid chromatograph for subsequent assay determination. The detection method provided by the invention has the advantages that a hollow fiber tube liquid-phase microextraction method is adopted, namely, the hollow fiber tube is taken as the carrier of the microextraction solvent, the extraction, gathering, separation and purification are integrated into a whole, the extraction efficiency is high, the organic solvent consumption is less, the extraction is fast and sensitive, and the like; according to experiment results, the recovery rate and precision of the method both satisfy the demands, and the method can be used for the detection of chlorinated phenol mildew preventives in the textile, and has wide application prospect.

The invention discloses a chlorinated phenol detection reagent and a preparation method thereof, which belong to the technical field of chemical detection. The detection reagent comprises the following components in parts by mass: 5-12 parts of tributyl phosphate, 6-18 parts of 4-amino-antipyrine, 2-5 parts of sodium thiosulfate, 1-3 parts of sodium hydroxide, 1-3 parts of palladium chloride, 2-6 parts of sodium carbonate, 2-7 parts of zinc sulfate, 6-12 parts of ethyl alcohol and 12-25 parts of deionized water. The chlorinated phenol detection reagent has the characteristics of being efficient, quick and visual, is relatively high in sensitivity, relatively simple to operate and relatively low in cost. The chlorinated phenol detection reagent is used as an ideal chlorinated phenol detection reagent.

The invention discloses a diazotization preparation method of chloroarylamine. The method is conducted according to the following steps that metered sulfuric acid is slowly added into a diazotization reaction vessel, stirring is started, then nitrosyl sulfuric acid is slowly added, the temperature is lowered and controlled to be at minus 10 DEG C to 35 DEG C, chloroarylamine is slowly added, and after addition is completed, a diazotization reaction is conducted by keeping the above-mentioned temperature range till the reaction reaches a final point to obtain chloroarylamine diazotization liquid; the chloroarylamine diazotization liquid is slowly added into ice-water mixed liquid or low-temperature water at the temperature below 0 DEG C to be diluted, and after addition is completed, stirring under heat preservation is controlled to be conducted at the temperature below 5 DEG C; filtration is conducted for impurity removal in 3 hours, and filtrate serves as diazotization liquid for use. After conventional disperse dye obtained by coupling the diazotization liquid acquired through the method is used for normal dyeing, all environment protection detection indexes, particularly the chlorinated phenol content, the chlorobenzene content and the chlorinated methylbenzene content, of a textile fabric meet the limitation requirements of the Oeko-Tex Standard 100, and then the more stringent biological environment protection requirements of medium-grade and high-grade fabrics are met.

The invention provides a synthetic method of a chlorinated phenol compound, which takes Lewis acid series alkyl imidazole ionic liquid as a catalyst, and a phenol compound, hydrochloric acid and an oxidizing agent are subjected to an oxidation chlorination reaction to obtain the chlorinated phenol compound. Hydrochloric acid is used as a chlorinating agent, so that the use of chlorine, sulfonyl chloride and other environment-unfriendly chlorinating agents is avoided, and the method is green and environment-friendly; the Lewis acid series alkyl imidazole ionic liquid is adopted as the catalyst, no organic solvent is needed, the catalytic activity is high, the selectivity is high, product separation is facilitated, waste liquid is not generated, industrial production is facilitated, and the cost is reduced.

The invention provides a bimetallic composite catalyst, a preparation method and application thereof, a working electrode and a battery system, and belongs to the technical field of catalysts. The bimetallic composite catalyst provided by the invention comprises a carbon material carrier and a bimetallic active component loaded on the surface of the carbon material carrier, the bimetallic active component comprises two of palladium, platinum, silver, gold, ruthenium, iron, cobalt, nickel and copper. The bimetallic composite catalyst provided by the invention has the advantages that the adsorption capacity to chlorinated phenol compounds is improved, so that dechlorination and hydrogenation of the chlorinated phenol compounds to form phenol compounds are accelerated, meanwhile, further hydrogenation of the phenol compounds to generate KA oil is promoted, and the selectivity and yield of the KA oil are improved through the synergistic effect of the two metals; and the carbon material is used as the carrier, so that the dispersity and the binding force of the bimetallic active components in the catalyst can be improved, and the catalytic activity and the stability of the bimetallic composite catalyst can be improved.

The invention relates to a metal-loaded magnetic carbon material catalyst and a method for catalyzing dechlorination of chlorinated phenol through the metal-loaded magnetic carbon material catalyst, and belongs to the field of organic synthesis and catalytic reaction. The metal-loaded magnetic carbon material catalyst and the method for catalyzing dechlorination of the chlorinated phenol through the catalyst are provided. The metal-loaded magnetic carbon material catalyst is a compound obtained by loading Fe3O4 and active metal elements on a carbon material, wherein the carbon material is activated carbon or carbon nano tubes or graphene, and the active metal elements are one or two of platinum, palladium and rhodium. The preparation steps of the catalyst are simple, reduction is carried out simultaneously in the preparation process of the catalyst, and the reduction step is omitted. The catalyst has terrific hydrodechlorination performance on the chlorinated phenol and is used for dechlorination of the chlorinated phenol, reaction conditions are milder, no inorganic or organic additive is added to a reaction system, and the catalyst can be recycled.

An application of a disperse dye composition as disperse dye is disclosed. The disperse dye composition comprises dye and a dispersant. A ratio of the mass of the dispersant to the mass of the dye is 0.5:1-2.5:1. The dye comprises, by weight, 20-65% of a component A, 15-50% of a component B and 15-55% of a component C. The component A is one or more of compounds 1. The component B is one or more of compounds 2. The component C is a compound 3 and / or a compound 4. The composition is good in compatibility, high in printing color yield, good in deep dyeing property, good in lifting capability, excellent in water fasteness, sublimation fasteness and other types of fasteness, significantly improved in white-ground staining, and low in chlorinated phenol residue amount after printing.