10 results about "Sulfosalicylic acid" patented technology

The invention relates to the technical field of rare earth hydrometallurgy, and discloses a process for preparing ultra-high-purity rare earth oxide by an ion exchange method, which comprises the following steps: loading monodisperse polystyrene sulfonic acid resin into a chromatographic column, and carrying out constant-temperature circulating pretreatment by using a pre-swelling solution containing urea and ammonium nitrate; preparing a rare earth feed liquid containing urea and with anions being nitrate radicals, introducing the rare earth feed liquid into the chromatographic column for adsorption saturation, and then connecting the rare earth feed liquid in series with the retardation column; carrying out displacement leaching by using a composite leaching solution in which ethylenediamine tetraacetic acid, 5-sulfosalicylic acid and urea are dissolved, and collecting target rare earth effluent in sections; and finally, adding a precipitant into the effluent for precipitation, and filtering, washing and firing to obtain the ultra-pure rare earth oxide. According to the invention, a urea swelling driven dynamic compensation system is constructed, and 10%-14% of monodisperse resin with high crosslinking degree is selected to cooperate with urea-ammonium nitrate pretreatment, so that low-pressure-drop operation at a high flow rate of 1.0 BV / h or above is realized.

This invention discloses a method for measuring the total iron content in EDTA chemical cleaning solution for power plant boilers, relating to the field of chemical cleaning technology for power plant boilers. The method includes: injecting the EDTA cleaning solution into a UV reactor and diluting it with demineralized water; adjusting the pH of the solution in the UV reactor to acidic using hydrochloric acid and ammonia, then adding persulfate solution, heating the reaction, and allowing complete digestion; transferring the solution from the UV reactor to a reaction flask, adding sulfosalicylic acid as an indicator, and titrating with EDTA standard solution until the purple-red color changes to pale yellow as the endpoint, recording the volume of EDTA consumed, and calculating the total iron content in the chemical cleaning solution. This invention features high accuracy, simple operation, and fast detection speed.

This invention discloses a cerium sulfosalicylate sulfonate for use as a coal combustion catalyst, its preparation method, the catalyst itself, and its applications. The preparation method includes: S10, mixing cerium nitrate and sulfosalicylic acid dihydrate with water to obtain a cerium sulfosalicylate complex solution; S20, adding the cerium sulfosalicylate complex solution to a first reverse micelle solution to obtain a first mixed solution, then adding n-butanol in batches to obtain a first microemulsion; S30, adding ammonia to a second reverse micelle solution, then adding n-butanol in batches to obtain a second microemulsion; S40, mixing the first and second microemulsions and stirring to obtain a pale blue, opalescent colloidal solution, thus obtaining a second mixed solution; S50, drying and grinding the second mixed solution to obtain cerium sulfosalicylate. This cerium sulfosalicylate coal combustion catalyst is easily dispersed and can catalyze the pyrolysis and oxidation processes of coal from within, improving the utilization rate and calorific value of coal.

The invention discloses a leaching method for iron oxide coated gold in calcine, which comprises the following steps: adding water into the calcine to obtain ore pulp, adding an iron leaching agent to adjust the system to be weakly acidic, leaching, carrying out solid-liquid separation to obtain iron-removed slag, adding water into the iron-removed slag to prepare the ore pulp, adding the iron leaching agent into the ore pulp, and carrying out solid-liquid separation on the ore pulp to obtain the iron oxide coated gold in the calcine, and adjusting the pH value of the ore pulp to be neutral or alkalescent, adding a gold leaching agent, and performing solid-liquid separation after leaching to obtain gold leaching residues and a gold-containing pregnant solution. According to the leaching method for the iron oxide wrapped gold in the calcine, the wrapped gold in the iron oxide phase can be fully opened, and the gold recovery rate is increased by 15%-20%.

The present application relates to lyocell fabric with anti-static function and its preparation method. First, the wood pulp cellulose is modified by using ferric chloride, sulfosalicylic acid and pyrrole monomer; second, the spinning solution is prepared; third, the spinning solution is added into the screw extruder and enters the spinning system to prepare the lyocell fiber; finally, the lyocell fiber is post-treated and woven to prepare the anti-static lyocell fabric. The point-to-point resistance of the anti-static lyocell fabric prepared by the present application reaches 4.7*10 6 ~5.3*10 6 Ω, the charging amount reaches 0.18~0.21 muC / piece; after 20 times of washing, the point-to-point resistance and the charging amount do not change greatly, which indicates that the lyocell fabric prepared by the present application has stable anti-static function.

The present application belongs to the field of material surface treatment, and particularly relates to a surface passivation method of pure copper, comprising the following steps: performing pre-treatment on the pretreated sample, performing surface passivation on the sample after pre-treatment in a passivation solution, and generating a film layer capable of resisting external erosive ions on the surface of the pure copper and copper alloy after passivation treatment, so as to improve the breakdown potential and prolong the service life of the pure copper product; at least two passivation main agents, such as BTA derivatives and TTA, are required for the traditional pure copper passivation process, and the composition process is complex, and the compounding amount and ratio need to be considered; the passivation method of BTA + sulfosalicylic acid is adopted in the present application, and no BTA compounding agent is required, so as to solve the problems, and the operation is more simple and convenient; and the protection performance of the pure copper sample treated by the passivation process is improved, and the pure copper sample can resist Cl ‑ erosion in 3.5% NaCl solution for a long time, thereby providing guarantee for long-term operation of various pure copper samples in marine environment.

The invention discloses a multi-effect imidazoline corrosion inhibitor for acidizing and fracturing as well as a preparation method and application thereof, and relates to the technical field of oilfield chemistry, the preparation method comprises the following steps: uniformly stirring polyethylene glycol monomethyl ether and cyanuric chloride to react to prepare a polyether cyanuric chloride solution; the preparation method comprises the following steps: stirring 5-sulfosalicylic acid, propargyl alcohol, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and 4-dimethylaminopyridine to react to prepare a 5-sulfosalicylic acid propargyl alcohol ester product, reacting the 5-sulfosalicylic acid propargyl alcohol ester product with polyether cyanuric chloride to prepare a polyether-sulfonate disubstituted cyanuric chloride intermediate, and reacting the polyether-sulfonate disubstituted cyanuric chloride intermediate with polyether cyanuric chloride to prepare the polyether-sulfonate disubstituted cyanuric chloride intermediate. Dodecenylsuccinic acid and diethylenetriamine react to prepare an imidazoline intermediate, and the polyether-sulfonate disubstituted cyanuric chloride intermediate and the imidazoline intermediate are heated to react to obtain the polyether-sulfonate disubstituted cyanuric chloride. According to the prepared multi-effect imidazoline corrosion inhibitor, four functional groups are combined through chemical bonds, the defects of physical compounding are avoided, and the corrosion inhibition efficiency far exceeding that of physical compounding is achieved.

The application relates to a high-performance fiber-reinforced and novel-structure thermoplastic honeycomb composite plate and belongs to the technical field of high polymer composite materials. The composite plate comprises a synergistically modified thermoplastic resin, reinforcing fibers, 2,6-dihydroxy triptycene, deionized water, an antioxidant, a lubricant, a flame retardant and a nucleating agent; wherein the synergistically modified thermoplastic resin is prepared by synergistically modifying polypropylene, glycidyl methacrylate, maleic anhydride, 2-methyl imidazole and sulfosalicylic acid through an epoxy ring-opening grafting reaction and ionic bonding. By constructing an ionic crosslinking network structure and introducing a rigid organic small molecule, the effective restriction of molecular chain movement is realized, and the interface bonding performance between the reinforcing fibers and the matrix is enhanced, so that the mechanical properties, heat resistance and creep resistance of the composite plate are significantly improved. The preparation method is simple, is suitable for industrial production and has a good application prospect.

The invention discloses a nuclear power cooling liquid preparation method, which comprises the preparation of a base material, the preparation of a base liquid, mineral type base oil, 2, 6-butylated hydroxytoluene, an antioxidant, dimethyl silicone oil and polyisobutylene-bis-succinimide, the base oil is prepared by mixing ethylene glycol, water, 5-sulfosalicylic acid and silicone oil, and the base liquid is prepared by mixing the mineral type base oil, the 2, 6-butylated hydroxytoluene, the antioxidant, the dimethyl silicone oil and the polyisobutylene-bis-succinimide. The corrosion inhibitor comprises a non-ionic dispersant, nanoparticles, a corrosion inhibitor and a solvent. The modified composite organic amine corrosion inhibitor prepared through a large number of experimental studies is low in corrosion inhibitor dosage, good in corrosion inhibition effect, easy to biodegrade, easy in raw material obtaining and capable of having corrosion inhibition and scale inhibition dual performance in a wide PH range.

The invention relates to the technical field of hydrotalcite materials, in particular to ultrathin MnNiFe-LDO and a preparation method and application thereof.The ultrathin MnNiFe-LDO is composed of MnNiFe-A-LDO, A is SLS or SL or SPT or SSA, SLS is lauryl sodium sulfate, SL is sodium laurate, SPT is sodium p-toluenesulfonate, and SSA is 5-sulfosalicylic acid. The preparation method comprises the following steps: 1, dissolving manganese chloride, ferric nitrate and nickel nitrate in deionized water to obtain a mixed solution; step 2, adding urea and sodium citrate into the mixed solution, and finally adding a surfactant; 3, pouring the mixed solution in the step 2 into a polytetrafluoroethylene high-pressure reaction kettle, and filtering, washing and drying after the reaction is finished; and 4, a product obtained in the step 3 is subjected to heat treatment, and MnNiFe-A-LDO is obtained. When the adding amount of the ultrathin MnNiFe-SSA-LDO is 5.0 g / L, the removal rate of 50 mg / L Cu (II) reaches 97.6%. After the ultrathin MnNiFe-SSA-LDO (5.0 g / L) is treated for 4 hours by taking the circuit board wastewater containing Cu < 2 + > as an object, the removal rate is up to 82.34%, and the adsorption capacity is up to 247.02 mg / g.