10 results about "Sodium phenoxide" patented technology

The present invention belongs to the technical field of wastewater treatment, and relates to a device and method for electro-oxidation treatment of sodium phenolate sewage, comprising a treatment frame body, partition plates, cover caps, a feeding frame, a filter screen and a liquid inlet pipe. Three partition plates are connected to the treatment frame body at intervals, and the partition plates divide the cavity inside the treatment frame body into four chambers. Three cover caps are connected to the top of the treatment frame body, and the three cover caps respectively block the three chambers on the right side of the treatment frame body. A feeding frame is connected inside the leftmost chamber, and a filter screen is arranged at the bottom of the feeding frame. One side of the treatment frame body is communicated with a liquid inlet pipe, and a drain port is opened on the other side of the treatment frame body, and a valve is arranged at the drain port. When treating sodium phenolate sewage, the present invention can add the medicament through the injection groove on the feeding block. Each time the added medicament just fills one injection groove, ensuring the consistency of the added amount of the medicament, without manual weighing, being more convenient to operate and having higher treatment efficiency.

This application discloses a photocatalytic method for dehydrogenating sodium cyclohexoxide, comprising the following steps: mixing sodium cyclohexoxide with a catalyst, and conducting a photocatalytic reaction under light irradiation to obtain sodium phenolate; the catalyst is selected from metal catalysts and / or supported metal catalysts; the metal catalyst is Rh metal particles; the supported metal catalyst is selected from at least one of Pt / TiO2, Pd / TiO2, Rh / TiO2, Rh / Al2O3, and Rh / C. The photocatalytic sodium cyclohexoxide dehydrogenation method provided in this application can achieve rapid hydrogen release from sodium cyclohexoxide without external heating, and has a faster response speed and a faster dehydrogenation rate compared to thermal catalysis. Furthermore, the photocatalytic sodium cyclohexoxide dehydrogenation method of this application can be carried out under sunlight, and the use of solar energy can effectively reduce the cost of sodium cyclohexoxide dehydrogenation, which is beneficial for its large-scale application.

The invention relates to a salicylic acid production method for comprehensively utilizing wastewater, comprising the following steps: S1: reacting phenol with liquid alkali to obtain sodium phenolate; S2: introducing carbon dioxide into the sodium phenolate to carry out a carboxylation reaction, and then carrying out rearrangement isomerization to obtain sodium salicylate; and then carrying out acid precipitation to obtain a crude salicylic acid product; S3: washing and centrifuging the crude salicylic acid product to obtain a salicylic acid product and salicylic acid production wastewater; S4: subjecting the wastewater to adsorption by a resin column, wherein the adsorption effluent comprises front-end effluent and back-end effluent, and the front-end effluent is used for the carboxylation reaction and acid precipitation operation in step S2; S5: inputting the back-end effluent into an evaporation crystallization device to obtain a crude sodium sulfate product and a kettle residue, and the kettle residue is used for the carboxylation reaction and acid precipitation operation in step S2; and S6: after the resin column is saturated with adsorption, eluting and regenerating with alkali solution, and obtaining an eluent comprising a front-end eluent and a back-end eluent, wherein the front-end eluent is used for step S1, and the back-end eluent is used for preparing the alkali solution.

The invention discloses a nylon 6 color fixing master batch, a color fixing fiber thereof and a preparation method of the color fixing fiber, and belongs to the technical field of textile fibers. In order to solve the problems of low cation dyeing fastness, complicated dyeing process and the like of the nylon fiber, a reaction product C12H10O4S.C6H6O4S.CH2O. 2Na of hydroxyl phenyl sulfonic acid monosodium salt, formaldehyde and sulfonyl bis (phenol) sodium salt is used as an acidic color fixing agent, the nylon 6 color fixing master batch and the color fixing fiber are prepared in a blending manner, the production process is simple, the cost is low, and the method is suitable for industrial production. Strong acid and high-temperature treatment is not needed in downstream dyeing; in the dyeing process, phenolic hydroxyl groups, sulfonic acid groups and other color fixing groups introduced by the acidic color fixing agent can enhance the combination of nylon 6 fibers and cationic dyes, a better color fixing effect is shown, meanwhile, due to the addition of the acidic color fixing agent, negative charges on the surfaces of the nylon 6 fibers are increased, and the acidic color fixing agent plays a role in electrostatic repulsion on dyes with negative charges, so that the color fixing effect is better. The neutral grey dye cross-dyeing prevention capability is endowed to the nylon 6 color fixing fiber.

This invention discloses a method for preparing quinone compounds. The method comprises the following steps: in the presence of a base, a compound as shown in Formula II and a compound as shown in Formula III undergo a condensation reaction to obtain a quinone compound as shown in Formula I; wherein the base is more basic than sodium phenolate. This method is simple to operate and suitable for industrial production.

The invention discloses an application of sodium phenate in preparation of a termite attractant. The termite attractant comprises sodium phenate and imidacloprid. The trapping effect of sodium phenate can attract termites, so that the termites actively contact with imidacloprid, imidacloprid plays an insecticidal role, the combination of sodium phenate and imidacloprid improves the termite trapping and killing efficiency, and compared with a single attractant or insecticide, the termite trapping and killing agent can more effectively control termite harm.

The invention relates to the technical field of solar cells, and particularly discloses a polishing additive for solving the problem of white spots in the pre-rough polishing process of a BC battery and a using method.The polishing additive is prepared from, by weight, 1.0%-10.0% of accelerant, 0.1%-5% of defoaming agent, 0.1%-0.5% of pH regulator, 0.01%-0.1% of surfactant and the balance deionized water; the accelerant is selected from one or a combination of more than two of sodium p-toluenesulfonate, perbenzoic acid, 2-nitroaniline, parachloronitrobenzene and sodium 2-methoxy-5-nitrophenolate; the accelerant is one or a combination of more than two of sodium p-toluenesulfonate, perbenzoic acid, 2-nitroaniline, parachloronitrobenzene and sodium 2-methoxy-5-nitrophenolate; by adopting an alcohol-free and phosphorus-free environment-friendly component design, the polishing additive obviously reduces the difficulty of subsequent sewage treatment while ensuring the efficient polishing performance, avoids the pollution of a traditional alcohol-containing and phosphorus-containing additive to the environment, effectively solves the problem that a silicon wafer is easy to generate white spots after a previous rough polishing process, and also has the advantages of simple process and low cost. And through an optimized surfactant and defoaming agent compounding technology, the surface flatness of the silicon wafer is further improved, and double breakthrough of environmental protection and performance is realized.

The invention discloses a hydroxyl-terminated polybutadiene-based polyurethane material with hot air aging resistance and excellent mechanical properties and a preparation method of the hydroxyl-terminated polybutadiene-based polyurethane material. According to the method, hexachlorocyclotriphosphazene is taken as a raw material, sodium phenolate or a mixture of sodium phenolate and p-aldehyde sodium phenolate is taken as a nucleophilic substitution reagent, sodium borohydride is taken as a reducing agent, and the hydroxymethylphenoxy cyclotriphosphazene compound is obtained through nucleophilic substitution reaction and reduction reaction. And introducing the hydroxymethylphenoxy-containing cyclotriphosphazene compound serving as a chain extender or a cross-linking agent into synthesis of hydroxyl-terminated polybutadiene polyurethane to obtain the polyurethane material. The tensile strength of the polyurethane material can be improved by 437%, the elongation at break can be improved by 39%, the glass transition temperature of the polyurethane material is maintained at about-70 DEG C, in addition, the tensile strength retention rate of the polyurethane material is maintained at 56% or above, and the elongation at break retention rate of the polyurethane material is maintained at 53% or above after the polyurethane material is aged in hot air at 100 DEG C for 24 h.

The invention discloses a continuous synthesis process of 2, 4-dichlorphenoxyacetic acid isooctyl ester, and relates to the technical field of synthesis of 2, 4-dichlorphenoxyacetic acid isooctyl ester, the continuous synthesis process of 2, 4-dichlorphenoxyacetic acid isooctyl ester comprises the following steps: S1, preparation of a sodium phenate solution: dissolving phenol in liquid caustic soda, adding a sodium hydroxide solution, and stirring to obtain the sodium phenate solution; stirring for 20-30 minutes in a normal pressure state through stirring equipment to prepare a sodium phenate solution, heating the prepared sodium phenate solution to 80 DEG C, and carrying out heat preservation treatment. In the process of processing the sodium phenate solution and the isooctyl chloroacetate solution through the tubular reaction device, the sodium phenate solution and the isooctyl chloroacetate solution in the reaction tank body are stirred and pressurized through transmission, the reaction is obviously accelerated, the time required by the reaction is shortened, and the reaction efficiency is improved. The occurrence probability of side reaction caused by non-uniform reaction conditions is reduced, so that the purity and the quality of the product are improved, and the product quality can be better guaranteed compared with conventional mixing.

The invention relates to a waste liquid recycling method and application, and discloses a preparation method for producing sodium salicylate by using waste liquid, and the preparation method specifically comprises the following steps: introducing carbon dioxide into the waste liquid containing sodium phenate and sodium hydroxide for the first time for reaction and layering to respectively obtain an oil phase and a water phase, the method comprises the following steps: reacting phenol with an alkaline reagent under normal pressure to obtain a reaction solution, then carrying out reduced pressure reaction on the reaction solution to obtain sodium phenate, and then introducing carbon dioxide for the second time to react to obtain sodium salicylate. According to the invention, the waste liquid containing sodium phenate and sodium hydroxide is subjected to chemical treatment, and sodium phenate in the waste liquid is used for producing high-purity sodium salicylate, so that an efficient reaction method for producing sodium salicylate under mild conditions is obtained, high-conversion-rate recovery and high-value utilization of the waste liquid are realized, no secondary pollution is caused during the process, and the method is suitable for industrial production. And the environment burden is reduced.