67 results about "Salicylaldoxime" patented technology

The invention relates to a preparation method of a magnetic cadmium ion surface imprinted polymer, which comprises the following steps: synthesizing magnetic Fe3O4@SiO2 microspheres through a coprecipitation method and a sol-gel method, and treating with acid to increase the surface hydroxyl content; introducing polymerizable double bonds onto the surfaces of the Fe3O4@SiO2 microspheres through a two-step method, namely grafting amino groups onto the surfaces of the microspheres by using aminosilane coupling agent, and generating the double bonds through reaction between acid anhydride and the amino groups; and finally, performing polymerization reaction by taking the Fe3O4@SiO2 microspheres as carriers, taking Cd(II) as a template, taking ethylene glycol dimethacrylate as crosslinking agent and taking methacrylic acid and salicylaldoxime as monomers, and washing off the template Cd(II) after the reaction, thus obtaining a polymer layer with a large number of Cd(II) imprinted holes distributed on the surfaces of the Fe3O4@SiO2 microspheres. The magnetic cadmium ion surface imprinted polymer provided by the invention can be used for separation and removal of cadmium ions.

The invention discloses anticorrosive sealing liquid and a method for sealing an anodic oxide film containing a copper-aluminium alloy by utilizing the same. The anticorrosive sealing liquid is prepared by dissolving 5-15g of adipate and 10-100mu g of anticorrosive in 100ml of deionized water. The anticorrosive is 2-mercaptobenzothiazole, benzotriazole, salicylaldoxime, 8-hydroxyquinoline or quinaldic acid. The sealing method is characterized by sealing the anodized copper-aluminium alloy in the electric field. By the sealing method, not only the micropores of the anodic oxide film are sealed, but also the anticorrosive is adsorbed in the anodic oxide film in the applied electric field, when the anodic oxide film is corroded, the anticorrosive is released from the micropores of the anodic oxide film through capillarity to play a role of corrosion inhibition to the copper-bearing phases in the base materials containing the copper-aluminium alloys to prevent further corrosion.

The invention relates to a preparation method of a magnetic zinc ion surface-imprinted polymer, which comprises the following steps: synthesizing magnetic Fe3O4@SiO2 microspheres by a coprecipitation process and a sol-gel process, and treating with acid to enhance the surface hydroxy content; introducing a polymerizable double bond onto the surface of the Fe3O4@SiO2 microspheres by a two-step process, i.e. grafting amino group onto the microsphere surface by using an aminosilane coupling agent, and reacting acid anhydride with the amino group to generate the double bond; and finally, carrying out polymerization reaction by using the Fe3O4@SiO2 microspheres as a carrier, Zn (II) as a template, ethylene glycol dimethacrylate as a crosslinking agent and methacrylic acid and salicylaldoxime as monomers, and after the reaction finishes, washing out the template Zn (II) to obtain the polymer layer in which abundant Zn (II) imprinted holes are distributed on the Fe3O4@SiO2 microsphere surface. The magnetic zinc ion surface-imprinted polymer can be used for separating and removing zinc ions.

An organic electro-luminescence display element comprising: at least a positive electrode; an organic luminescent film; an electron injection layer and a negative electrode, wherein: each of the positive and negative electrodes is formed of a transparent conductive film; the electron injection layer is formed of a thin film having transparency and made of organic metal salt containing alkali metal or alkaline earth metal as the metal, halogenide of alkali metal or alkaline earth metal, or organic metal complex containing alkali metal or alkaline earth metal as the metal; and the organic metal complex is at least one selected from the group consisting of acetylacetonate complex, .alpha.-nitroso-.beta.-n- aphthol complex, salicylaldoxime complex, cupferron complex, benzoinoxime complex, bipyridine complex, phenanthroline complex, crown complex, proline complex and benzoylacetone complex. An organic electro-luminescence display element comprising at least a positive electrode, an organic luminescent film and a negative electrode, wherein the positive electrode is formed of an electrically conductive film having transparency, the negative electrode is formed of a metal film containing metal having a low work function, and the negative electrode is connected to a power supply lead portion made of a transparent and conductive film.

The invention discloses a method for preparing 2-cyanophenol, which comprises the following steps: preparing salicylaldoxime; performing dehydration; and performing hydrolytic-acidification reaction, wherein in the dehydration, anhydride is adopted as a dehydrating agent; and in the hydrolytic-acidification reaction, a hydrolyticreagent is 10 to 30 mass percent alkaline solution, and the temperature of the hydrolytic-acidification reaction is 100 to 150DEG C. The preparation method comprises three steps of preparing the salicylaldoxime; performing dehydration; and performing hydrolytic-acidification reaction; the operation in each step is easy and feasible; the product generated in the third step is not needed to be recrystallized, the purity can reach over 95 percent and the total yield can reach over 92 percent; the process flow is simple, the product is easily produced industrially and the equipment cost is low; besides, the raw materials and auxiliary materials used in the invention are conventional chemical reagents, the varieties are single, and partial solvents can be recycled, so the problems of large wastewater quantity, high price of the dehydrating agent, potential safety hazard, high recrystallization cost and the like in the prior art are solved.

The invention provides a method for recovering copper and nickel from plastic chromium coatings. The method is characterized by consisting of the following steps of: 1, weighing the plastic chromium coatings, adding mixed solution of H2SO4 and H2O2 to the plastic chromium coatings for leaching, and filtering the mixed solution to obtain leachate and insoluble substances; 2, adjusting a pH value of the leachate, extracting the leachate by a mixture, serving as an extractant, of 2-hydroxyl-5-dodecyl salicylaldoxime and 2-hydroxyl-5-nonyl acetophenone oxime to obtain copper containing extraction solution and nickel containing raffinate, and back-extracting the copper containing extraction solution by sulfuric acid to obtain the copper containing back extraction solution; and 3, electrolyzing the copper containing back extraction solution and the nickel containing raffinate to obtain metal copper and metal nickel respectively. The method for recovering copper and nickel is lower in cost, causes little environmental pollution, and is suitable for the recycling of the plastic chromium coatings.

The invention discloses a preparation method of a magnetic lead ion surface imprinting polymer. The method comprises the following steps: firstly, synthesizing magnetic Fe3O4@SiO2 microspheres by using a 'coprecipitation method' and a 'sol-gel method', processing by using an acid, so as to improve the hydroxy content of the surface; then leading polymerizable double bonds to the surfaces of the Fe3O4@SiO2 microspheres by using a 'two-step process', firstly, grafting amino on the surfaces of the microspheres by using an amino silane coupling agent; generating double bonds by using reaction of anhydride and amino; finally taking the Fe3O4@SiO2 microspheres as a carrier, the Pb(II) as a template, ethylene glycol dimethacrylate as a crosslinking agent and methacrylic acid and salicylaldoxime as monomers to carry out polymerization reaction; and washing off the template Pb(II) after reaction is ended, so as to obtain a polymer layer with a lot of Pb(II) imprinting cavities distributed at the surfaces of the Fe3O4@SiO2 microspheres. The magnetic lead ion surface imprinting polymer disclosed by the invention can be applied to separation and removal of lead ions.

The invention discloses a low-temperature-resistant rare earth ore flotation collecting agent. The collecting agent comprises, by weight, 30-40 parts of 2-hydroxybenzohydroxamic acid, 30-50 parts of C5-7 hydroxamic acid, 5-15 parts of o-methyl naphthalene hydroxamic acid, 5-10 parts of coconut oil acid and 1-2.5 parts of surface active agents. The invention further provides a preparation method of the collecting agent. The collecting agent is good in water solubility, resistant to low temperature, excellent in selectivity and collecting property, good in flotation performance and easy to degrade, and the defects that an existing collecting agent for industrial application is poor in selectivity and difficult to degrade and needs heating flotation are overcome; and the production technique of the prepared collecting agent is simple and easy to implement, capital construction investment and energy consumption are reduced for enterprises, and the profit of the enterprises is increased.

The invention relates to a rare earth collector, in particular to a floatation rare earth mineral. The rare earth collector consists of the materials with the weight percentage as follows: 30-70 % of 1-naphthyl hydroxamic acid, 8-20 % of salicylaldoxime and 20-40 % of beta-furfural oxime. The rare earth collector is confected by a method as follows: (1) the 1-naphthyl hydroxamic acid is put in an enamel reactor and then is added with methanol and strong sulfuric acid to be put in a crystallizer tank for natural crystallization after heating reflux; (2) crystal, salicylal and beta-fufural are put into the enamel reactor and added with water and hydroxylamine hydrochloride to be heated to 35 DEG C to 55 DEG C for 5 hours; 30 percent liquid alkali is dipped during the reaction to keep pH at 10 always; after the reaction, solution is cooled to 30 DEG C, and 25 percent dilute sulphuric acid is added for acidifying, until the pH value equals to 5; and a product is put in a plastic bucket, and the product is the rare earth collector. The invention has less medicament dosage, low cost, simple medicament addition, strong adaptability, good selectivity and the strong ability of the collector.

Aqueous acidic coating solutions containing a water soluble divalent zinc compound, a complex fluoride compound, and an organic inhibitor for improving the corrosion resistance and adhesive bonding characteristics of aluminum, aluminum alloys, anodic coatings and sacrificial coatings, are disclosed. Suitable organic inhibitors include oximes, such as salicylaldoxime, and / or quinolines, particularly 8-hydroxyquinoline, and mixtures thereof.

The invention discloses a solid phase imprinted double-position extraction agent for copper (II). The solid phase imprinted double-position extraction agent comprises a salicylaldoxime ligand, which can enrich copper (II) ions from various water systems with high selectivity, and further comprises a quaternary ammonium structure unit, which is strong in hydrophilia, capable of remarkably improving the water wettability and the electric charge density of the surface of the solid phase imprinted double-position extraction agent, and favorable to quick diffusion of the copper (II) ions in the water systems on the surface of the solid phase imprinted double-position extraction agent, so as to quickly reach adsorption equilibrium, and overcomes the defects that the existing ion chelate polymer is strong in hole inside hydrophobicity, and long in adsorption equilibrium time; furthermore, the solid phase imprinted double-position extraction agent comprises an amino with an anion exchange function; after elution and recovery of copper (II), the amino in an alkaline solution is easily transformed into a zwitterionic polymer, so that the solid phase imprinted double-position extraction agent can not only chelate and adsorb the copper (II) ions, but also adsorb and contend against anions, and keep material balance of zwitterions during the solid phase extraction process.

The invention relates to a silica gel extraction agent containing quaternary ammonium positive ions and salicylaldoxime. The silica gel extraction agent containing quaternary ammonium positive ions and salicylaldoxime is prepared by the following steps: by adopting 3-(N, N-dialkylamine propyl) trialkoxyl silane as an organic alkoxyl silane coupling agent and 5-chloromethyl salicylaldehyde as a functional reagent, introducing quaternary ammonium positive ions and salicylaldoxime on the surface of silica gel through a chemical reaction; and further converting the silica gel into the functional silica gel with quaternary ammonium positive ions and salicylaldoxime on the surface as a solid phase extraction agent for metal ions. The silica gel extraction agent containing quaternary ammonium positive ions and salicylaldoxime provided by the invention has high hydrophilicity, can quickly and selectively chelate and adsorb heavy metal ions in an aqueous solution, and has the fast exchange characteristic of negative ions.

The invention discloses a cross-linkable copper (II) monomer containing quaternary ammonium cation and salicylic Schiff base and a preparation method of the cross-linkable copper (II). The preparation method is to regard salicylic Schiff base as a functional group of copper (II) coordination imprinted polymer, combine the technique requirements of a copper (II) wet melting technology of 5-alkyl salicylaldoxime chelate extraction, utilize the polymer synthesis design philosophy, design the cross-linkable copper (II) monomer containing quaternary ammonium cation and salicylic Schiff base, conduct a polymerization reaction to prepare the salicylic Schiff base-copper (II) chelate imprinted polymer as a solid phase extraction agent in the copper wet melting industry. The cross-linkable copper (II) monomer containing quaternary ammonium cation and salicylic Schiff base has the characteristics of high copper (II) chelation absorbing selectivity, high copper (II) chelation absorbing capacity, high hydrophilia, high water phase dispersing rate, high separation coefficient, high elution rate, high mechanical stability, high chemical stability and high simplicity in preparation technology.

The invention provides a super chelating ion exchange fiber which adopts one of cotton fiber, hemp fiber, wood fiber, bamboo fiber, grass fiber, polypropylene fiber, polyacrylonitrile fiber, vinylon, polyester or spandex or the blend fiber composed of more than two above fibers as fiber substrate; the fiber substrate is impregnated in cyanamide resin emulsion to obtain a cyanamide resin emulsion coated functional fiber which then reacts with 5-(chloromethyl)salicylaldehyde and hydroxylamine hydrochloride in turn, so that the functional fiber is introduced with quaternary ammonium group, salicylaldoxime and amidoxime and becomes the super chelating ion exchange fiber.

The invention relates to a method for extracting and separating copper from iron and zinc through segmented flow type micro-fluid, and belongs to the technical field of fluid extraction. A sulfuric acid system containing the copper, the iron and the zinc is used as a water phase, and an oil phase is formed by taking 5-dodecyl salicylaldoxime and 2-hydroxy-5-nonylacetophenone oxime as extraction agents and number 260 solvent oil as a diluent; the water phase and the oil phase enter a cross type micro-channel through a pump, and the flow speed is controlled to be 0.01 mL / min-10 mL / min; after a segmented flow reaction is performed for 0.1-20 s under the condition that the temperature ranges from 25 DEG C to 50 DEG C, products are collected from the outlet of the cross type micro-channel and stand to be layered; and Cu2+ is extracted and enters an organic phase, Fe3+, Fe2+ and Zn2+ remain in the water phase, and thus the copper is separated from the iron and the zinc. The method has the advantages of being high in efficiency, safe, low in cost, free of pollution and high in separation rate.

The invention relates to a preparation method and application of a photosensitizer transmission carrier sensitive to active oxygen. According to the preparation method and application, salicylaldoximeand derivatives of the salicylaldoxime serve as cross-linking agents, vinylpyridine and polyethylene glycol serve as monomers to perform free radical polymerization, and then obtained nanoscale particles can serve as the transmission carrier of a photosensitizer. After the photosensitizer is transmitted to a lesion position, the cross-linking agents can fracture to release the photosensitizer tothe lesion position when being subjected to active oxygen stimulation generated by the photosensitizer. The preparation method and application of the photosensitizer transmission carrier sensitive tothe active oxygen have the advantages that the preparation method of the carrier is simple, the raw materials are obtained easily, the water solubility problem of the photosensitizer can be effectively improved, the drug administration on the lesion position 'according to demands' is achieved, the biological distribution of the drug on the tumor is improved, the toxic and side effect of the drug is obviously reduced, and then the better curative effect than original medicine is obtained. The preparation method and application of the photosensitizer transmission carrier sensitive to the activeoxygen have an important practical prospect and social value in the fields of oncotherapy and drug delivery.

The invention provides an aqueous dispersion for chemical mechanical polishing that can limit scratches of a specific size to a specific number, even with interlayer insulating films with small elastic moduli (silsesquioxane, fluorine-containing SiO2, polyimide-based resins, and the like.). When using the aqueous dispersion for chemical mechanical polishing of an interlayer insulating film with an elastic modulus of no greater than 20 GPa as measured by the nanoindentation method, the number of scratches with a maximum length of 1 μm or greater is an average of no more than 5 per unit area of 0.01 mm2 of the polishing surface. An aqueous dispersion for CMP or an aqueous dispersion for interlayer insulating film CMP according to another aspect of the invention contains a scratch inhibitor agent and an abrasive. The scratch inhibitor may be biphenol, bipyridyl, 2-vinylpyridine, salicylaldoxime, o-phenylenediamine, catechol, 7-hydroxy-5-methyl-1,3,4-triazaindolizine, and the like. The abrasive may consist of inorganic particles, organic particles or organic / inorganic composite particles. The organic / inorganic composite particles may be formed by polycondensation of an alkoxysilane, aluminum alkoxide, titanium alkoxide, and the like in the presence of polymer particles of polystyrene or the like, and bonding of polysiloxane, and the like, on at least the surface of the polymer particles.

The invention discloses a synthetic method of 5-nonyl salicylaldoxime. The method comprises the following steps: a) mixing 4-nonyl phenol and a formaldehyde solution, adding an alkali as a catalyst, and reacting for 2 hours under the thermal insulation condition; b) standing the solution for layering, taking an organic layer and adding chloroform and a Dess-Martin reagent for reaction for 1-3 hours; c) sequentially washing the solution obtained after reaction in the step b) at room temperature by using a saturated sodium carbonate aqueous solution, a sodium thiosulfate aqueous solution and deionized water and standing for layering, then, adding alkali as a catalyst into the organic layer, dropwise adding a hydroxyl amine salt solution, and reacting for 3 hours under the thermal insulation condition; and d) adding sulfuric acid into the solution, standing for layering, washing the organic layer by using deionized water to be neutral, and removing the solvent to obtain 5-nonyl salicylaldoxime. The method provided by the invention is simple in operation step, mild in reaction condition, easy to control and safe, convenient to operate and free of flammable and combustible exhaust gas. Based on 4-nonyl phenol, the yield of products can reach over 98% and the purity can reach over 95%.

A solid material for recovering metal ions from aqueous streams, and methods of making and using the solid material, are disclosed. The solid material is made by covalently bonding a chelating agent to a silica-based solid, or in-situ condensing ceramic precursors along with the chelating agent to accomplish the covalent bonding. The chelating agent preferably comprises a oxime type chelating head, preferably a salicylaldoxime-type molecule, with an organic tail covalently bonded to the head. The hydrocarbon tail includes a carbon-carbon double bond, which is instrumental in the step of covalently bonding the tail to the silica-based solid or the in-situ condensation. The invented solid material may be contacted directly with aqueous streams containing metal ions, and is selective to ions such as copper (II) even in the presence of such ions as iron (III) and other materials that are present in earthen materials. The solid material with high selectivity to copper may be used to recover copper from mining and plating industry streams, to replace the costly and toxic solvent extraction steps of conventional copper processing.

The invention discloses a reagent and method for detecting copper ion content in a water environment. The reagent is solution in which a copper color-developing agent is dissolved in organic phases; the copper color-developing agent is salicylaldoxime and / or salicylaldoxime derivatives; and the organic phase is one or more of benzene, methylbenzene, dimethylbenzene, styrene, ethyl acetate, carbon tetrachloride, trichloromethane and dichloromethane. The reagent is formed by dissolving the copper color-developing agent in the organic phases; and when the organic phases are fully mixed with water solution, the copper color-developing agent and copper ions are subjected to complexing to enter the organic phases, and the color of the organic phases are changed along with the concentration of the copper ions, so that the concentration of the copper ions can be detected according to the colors of the organic phases. The reagent comprises less components, is low in cost and good in stability, and can be stored for a long time without deterioration; and moreover, as all the organic phases of the reagent and the water are immiscible, waste liquid after detection can be separated and recovered, and can be reused after being processed, so that secondary pollution is avoided.

The invention discloses a continuous multi-level extraction metal leaching recycling method. Metal leaching is conducted on fly ash through hydrochloric acid; 5-salicylaldoxime (LIX860N-I) and mixed trialkyl phosphine oxide (Cyanex 923) serve as extraction agents for recycling heavy metal in heavy metal waste, such as the fly ash, rich in the heavy metal; kerosene serves as solvent of the extraction agents; and sulfuric acid, pure water and potassium chloride serve as reverse extraction agents. The multi-level extraction method that different extraction agents and the reverse extraction agentsare added level by level is adopted; selectivity of the extraction agents is combined; the two types of extraction agents are sequentially added, and level-by-level separation of metallic copper, metallic cadmium, metallic zinc and metallic iron in pickle liquor can be achieved to the greatest extent; the cost of secondary purification conducted on mixed metal compounds similar in chemical property is effectively lowered; the extraction process has the advantages of being simple, fast and convenient to implement, low in cost and the like; and a new concept can be provided for resource utilization of the metal in the fly ash.

The invention discloses a multicomponent compound salicylaldoxime copper extractant which belongs to the technical field of hydrometallurgy copper extraction and a preparation method thereof. The extractant which treats a salicylaldoxime mixture as an active component has the advantages of strong copper extraction capability, fast extraction speed, no flocculation, easy back extraction, high pure copper transfer rate, low consumption, and less residual of copper ions in mine tailings through comparing with traditional products. The copper extractant treats industrial byproducts mixed with decylene or cardanol as raw materials, so the preparation method is simple.

The invention discloses a flotation enriching method for willemite. According to the method, sodium hexametaphosphate and tannin extract are taken as gangue mineral inhibitors, lime and salicylaldoxime are taken as willemite activating agents, and lauryl sodium sulfate and lauryl mercaptan are taken as willemite collecting agents. Due to the adoption of the flotation enriching method, willemite minerals can be effectively floated and enriched. After one time of rougher flotation, four times of scavenging and three times of concentration are performed under the condition that the feed zinc content is 8.78-15.66 percent, zinc silicate concentrate of which the zinc content is 45.67-46.74 percent and the recovery rate is 83.15-85.61 percent is obtained.

The invention relates to a process for producing 5-nonyl salicylaldoxime that comprises of converting nonyl phenol to a 5-nonyl aldehyde in a two-step reaction using a novel catalyst mixture, followed by the oximation of the said aldehyde using hydroxylamine sulphate, and that the said catalytic process of aldehyde production is the main invention, in that the effective use of the catalyst mixture helps the reaction proceed at a faster and controlled rate which leads to a higher yield of aldehyde, as a result of complete conversion of all the reactants to the final products.

The invention relates to tert-octyl salicylaldoxime and a synthetic method thereof. The synthetic process conditions are as follows: the molar ratio of magnesium: p-tert-octyl phenol is 0.55:1, the salt forming reaction time is 110 minutes and the salt forming reaction temperature is 63 DEG C; the molar ratio of paraformaldehyde: p-tert-octyl phenol is 2.4:1, the acylation temperature is controlled to be 107 DEG C by oil bath, and the time is 150 minutes; the molar ratio of hydroxylamine hydrochloride: p-tert-octyl phenol is 1.5:1, the oximation reaction temperature is between 45 DEG C and 50 DEG C, the boil bath temperature is 47 DEG C, and the time is 210 minutes; adding methylbenzene for two times while methanol-methylbenzene azeotrope is distilled in the salt forming reaction, and adding the methylbenzene for three times in the acylation reaction, wherein 5 ml of the methylbenzene is added every time, and the time interval is 2 minutes; to obtain a tert-octyl salicylaldoxime coarse product, acidifying, distilling in the reduced pressure and washing by petroleum ether, to obtain the tert-octyl salicylaldoxime. Compared with other common copper extraction agents, the tert-octyl salicylaldoxime has the advantages of low synthesis cost and extensive raw material source.

The invention discloses salicylaldoxime ester compounds with a structure shown in formula I. A substituent group R of the salicylaldoxime ester compounds is selected from C1-C8 alkyl, or selected fromcyanogroup, halogen, phenyl, C1-C4 alkoxy, C1-C4 alkyl sulphanyl substituted C1-C8 alkyl, or selected from phenyl, or selected from phenyl with 1-3 substituent groups, wherein the 1-3 substituent groups on phenyl are selected from halogen, hydroxyl, carboxyl, nitryl, cyano group, phenyl, phenoxyl, benzoyl, C1-C8 alkyl, C3-C8 naphthenic base, C1-C4 alkoxy, C1-C4 halogenated alkyl, C1-C4 halogenated alkoxy, C1-C4 halogenated alkyl sulphanyl and C1-C4 halogenated alkyl sulfonyl. According to a synthesis route of the salicylaldoxime ester compounds, 4-methoxyl salicylaldehyde and hydroxylamine hydrochloride are taken as raw materials. The method is used for the first time for synthesis of the compounds and has the advantages that the yield is high, separation is easy and the like. The compounds have better bacteriostatic activity for multiple agricultural pathogenic fungi.