13 results about "Aminosulfonate" patented technology

The invention discloses an electrolytic solution of a platinum-rhodium alloy, a preparation method and a preparation method of a plating layer of the platinum-rhodium alloy, and belongs to the technical field of precise electroplating. The electrolytic solution comprises a platinum salt, a rhodium salt, a first additive, a second additive, a first complexing agent, a second complexing agent, a first stabilizer and a second stabilizer, the first additive is a sulfamic acid compound containing 3-4 hydroxyalkyl groups, the second additive is sulfamic acid salt containing 3-4 hydroxyalkyl groups, and the first complexing agent and the second complexing agent are a platinum salt and a rhodium salt. The first complexing agent is a mixture of dicarboxylic acid and dicarboxylic acid containing amino or hydroxyl, the second complexing agent is a salt corresponding to the dicarboxylic acid, and the first stabilizer is a mixture of alkyl sulfonic acid and alkyl sulfonate. Through the synergistic effect of the additive, the complexing agent and the stabilizer, the additive, the complexing agent and the stabilizer form a five-membered to seven-membered heterocyclic coupling structure with platinum ions and rhodium ions, and the stability of the electrolytic solution is remarkably improved. And the obtained platinum-rhodium alloy coating is compact and uniform, and has excellent nitric acid steam and mixed gas corrosion resistance.

This invention discloses a solid sodium aminosulfonate β-H elimination promoter, its preparation method, and its application, relating to the technical field of β-H elimination promoters. The technical solution is as follows: S1, diethylenetriamine is dissolved in an organic solvent; S2, chlorosulfonic acid organic solution is added dropwise to the diethylenetriamine organic solution at 0-10℃ to carry out the reaction; after the addition is complete, the temperature is raised to continue the reaction; S3, the white solid generated by the reaction is filtered and washed with chloroform and ethanol respectively. The washed white solid is poured into anhydrous methanol and dispersed evenly. The reaction temperature is lowered to 0℃, sodium hydroxide is added for neutralization, and the solvent is removed by vacuum distillation. The resulting pale yellow solid is washed with ethanol and finally dried under vacuum to obtain the solid sodium aminosulfonate β-H elimination promoter. The solid sodium aminosulfonate β-H elimination promoter prepared by this invention has advantages such as high metal salt content, strong alkalinity, and easy separation, making it a promising additive for industrial application.

The application discloses a preparation method and application of a water-based conductive binder for a silicon-based negative electrode of a lithium ion battery. The water-based conductive binder is a kind of polymer aqueous solution prepared by copolymerization of monomer A, monomer B and monomer C in water, and then grafting reaction with amino sulfonate monomer D containing a long-chain ether bond. The obtained solution has a solid content of 2.5-5% after dialysis purification, and has the characteristics of water solubility, heat crosslinking and enhanced ionic conductivity, thereby solving the problem of large viscosity of the crosslinked network binder slurry and difficulty in dispersion. The electrode material coated on the copper foil has the characteristics of strong dry and wet adhesion and difficulty in falling off, the binder is used for the silicon-based negative electrode, the influence of the volume expansion of silicon can be relieved, the battery has high specific capacity and good cycle performance. The application has the advantages of low cost, simplicity, universality, environmental friendliness, good coating effect and the like, and is suitable for the silicon-based negative electrode of the lithium ion battery.

The invention discloses a preparation method of nickel aminosulfonate, and relates to the technical field of nickel-containing chemical production, and the method comprises the following specific steps: multi-element metal pretreatment: mixing and ball-milling nickel, aluminum and magnesium powder, adding an acyclic boroxane-containing aqueous solution, and carrying out ultrasonic treatment to form a suspension; a reaction system is constructed by mixing the suspension liquid, sulfamic acid and an acyclic organic phosphorus compound, a segmented stirring reaction is carried out under the conditions of oxygen introduction and proper temperature and humidity, programmed crystallization and cooling are carried out to form wet crystals, and nickel sulfamic acid is finally prepared through segmented vacuum drying; through collaborative design of multi-metal pretreatment and a reaction system, reaction preparation and proportion are optimized, reaction activity and conversion rate are improved, and side reactions are reduced; and by matching with segmented stirring, substance transfer is promoted, the product purity is guaranteed, program crystallization and segmented vacuum drying are combined, crystal growth and drying conditions are controlled, impurities are removed, the product purity, stability and production efficiency are improved, and the large-scale production requirement is met.

The invention discloses an HY catching agent as well as a preparation method and application thereof, and belongs to the technical field of acid waste liquid regeneration. The HY trapping agent comprises the following components in percentage by mass: 0.08%-2.00% of a pH buffer agent, 5.0%-12.0% of an adsorbent, 0.01%-0.08% of an ionic strength regulator, 0.03%-0.10% of an acid radical supplement, 0.01%-0.03% of a chelating agent, 0.05%-0.2% of sulfamate and a proper amount of deionized water. The heavy metal removal rate is larger than or equal to 99%, the acid radical retention rate is larger than or equal to 95%, and the treatment cost is reduced.

The invention provides a method for detecting sulfamate and sulfate in a topiramate bulk drug, which is suitable for the technical field of detection of impurity control of organic chemical synthesis bulk drugs, especially in the organic synthesis process of bulk drugs. An ion chromatography detection method for monitoring synthesis of potential residual inorganic anion impurities is needed. The analysis method overcomes the limitation that the existing method (such as turbidimetric method) is poor in specificity and cannot detect simultaneously, shortens the analysis time, simplifies the components of the mobile phase, and increases the sensitivity and the accuracy. According to the method, separation and detection are carried out in a gradient elution mode through an ion chromatography method, a chromatographic column is an anion exchange chromatographic column and an electrical conductivity detector, and a mobile phase is a potassium hydroxide solution. The method for detecting the sulfamate and the sulfate in the topiramate bulk drug is good in separation degree, high in specificity, high in precision and good in repeatability, and meets methodological research on determination of the sulfamate and the sulfate in the topiramate bulk drug.

This application relates to the field of polymer materials technology, and particularly to a protein adhesion coating and its preparation method. The protein adhesion coating provided in this application comprises resin I and resin II. Resin I is obtained by reacting maleic anhydride, polyethylene glycol, pyrrole, and hexanediol diacrylate, while resin II is obtained by polymerizing aminosulfonate-modified polyisocyanate with hexanediol. The mass ratio of resin I to resin II is 6-9:7-8. This application utilizes the curing of resin I and resin II to form a protein adhesion coating. Because these two resins contain hydrophobic segments, they can generate hydrophobic interactions and π-π stacking with substrates such as PS culture dishes to enhance adhesion, preventing the substrate from detaching in water. Simultaneously, these two resins contain a large number of amide bonds and zwitterions, which can form hydrogen bonds and electrostatic adsorption with proteins, promoting cell adhesion.

The application discloses a method for floating copper oxide or cobalt copper oxide ore by using calcium and magnesium rich high alkaline tailing backwater, and belongs to the technical field of ore dressing. The method comprises the following steps: crushing, grinding and slurry adjusting of the copper oxide or cobalt copper oxide ore to obtain a slurry; adding copper and cobalt ore inhibitors (ammonium dithiocarbamate and amino sulfonate) and calcium and magnesium gangue mineral collectors into the slurry to perform reverse flotation, and the foam product is calcium and magnesium gangue minerals, and the tailing product is copper oxide or cobalt copper oxide concentrate; wherein, water used in the grinding, slurry adjusting and reverse flotation processes is calcium and magnesium rich high alkaline tailing backwater. The method not only improves the flotation recovery rate of the copper oxide or cobalt copper oxide ore, but also realizes direct and efficient use of the calcium and magnesium rich high alkaline tailing backwater, and has good industrial application value and environmental friendliness.

This invention discloses a nonlinear optical crystal, sodium lead aminosulfonate, its preparation method, and its uses. The sodium lead aminosulfonate has the chemical formula Na₂Pb(SO₃NH₂)₄, belongs to the orthorhombic crystal system, space group C₂₂₁, has a molecular weight of 637.524, and unit cell parameters a = 9.8213(4) Å, b = 9.8315(4) Å, c = 14.5136(6) Å, α = 90°, β = 90°, and γ = 90°. The nonlinear optical crystal prepared by this invention exhibits good ultraviolet transmittance, low toxicity, stability, simple processing, and low cost.

The invention discloses a preparation method of an electronic-grade high-purity nickel aminosulfonate solution, which comprises the following steps: preparing a functional composite membrane: taking a porous polysulfone support membrane as a substrate, and forming a boron-nitrogen coordination polymer coating on the surface of the porous polysulfone support membrane through interfacial polymerization; then, a graphite-like phase carbon nitride layer grows on the surface of the coating through in-situ roasting; then grafting a phosphorus-sulfur synergistic chelating agent to the surface of the coating through ester exchange reaction; and finally, spraying fluorine modified silane and carrying out activating treatment to obtain the functional composite membrane. Carrying out integrated refining; regenerating and recycling the membrane; according to the preparation method disclosed by the invention, the fully non-metallic element functional composite membrane consisting of the boron-nitrogen coordination polymer, the graphite-like carbon nitride photocatalytic layer, the phosphorus-sulfur synergistic chelating agent and the fluorinated layer is innovatively designed and prepared and is combined with a customized integrated refining process; and synchronous and deep removal of various different-property impurities in a single process is realized.

The invention relates to the field of electroplating of backboard connectors, and particularly discloses an electroplating method of a high-speed line backboard connector, which comprises the following steps: S1, washing the surface of a copper substrate to obtain a pretreated substrate; s2, electroplating a nickel layer on the surface of the pretreated base material, and cleaning to obtain a semi-finished product; s3, after the surface of the semi-finished product is electroplated with a gold layer, a finished product connector is obtained after hole sealing, water washing and drying; an electroplating solution of the nickel electroplating layer comprises the following raw materials in parts by weight: 280-320 g / L of nickel aminosulfonate, 100-140 g / L of polyethylene glycol compounded nickel aminosulfonate, 50-60 g / L of nickel sulfate, 30-40 g / L of boric acid, 120-180 g / L of pyridinium hydroxy propyl sulfobetaine, 10-25 g / L of triethanolamine compounded glycolic acid, 5-10 g / L of a brightener and the balance of pure water which is supplemented to 1 L; the coating has the advantages of uniform coating, good binding force between the coating and a base material and good conductivity.

The invention discloses a deep hole electroplating nickel-plating solution and a nickel-plating process thereof, and relates to the field of electroplating. The nickel plating solution for deep hole electroplating comprises a water-soluble nickel salt, a complexing agent, a deep hole agent, polyethylene glycol, butynediol dipropoxy ether, a water-soluble conducting salt, dibenzenesulfonimide and water, wherein the complexing agent comprises glycine / aminopropionic acid, sulfamate, malic acid, etidronic acid and sodium citrate. According to the deep hole electroplating nickel-plating solution, nickel ions in a system can be stabilized, the reduction deposition efficiency of nickel is controlled, the nickel deposition process is stable and controllable, meanwhile, the penetration and dispersion capacity of the electroplating nickel-plating solution to a deep hole area is high, a zinc alloy substrate can evenly plate deep holes with the depth being 1 cm or above, and the electroplating quality of the deep holes is improved. Therefore, fine, uniform and compact nickel layers can be stably deposited inside and outside deep holes of the zinc alloy substrate, and the corrosion resistance can be improved.

The invention relates to the technical field of chemical nickel plating, and particularly discloses a low-stress chemical nickel plating solution and a preparation method thereof.According to the chemical nickel plating solution, uniform deposition of a nickel layer is achieved through optimization and adjustment of a formula, nickel aminosulfonate provides a stable nickel source, a reducing agent and a complexing agent are matched to control the deposition rate, and therefore the low-stress chemical nickel plating solution is obtained. Sodium hydrogen citrate maintains the acid-base balance of the plating solution, and a macromolecular chain segment in the composite additive can form an adsorption layer on an interface, so that the local stress concentration in the grain growth process is reduced; the benzothiazole group can be moderately coordinated with the nickel surface through nitrogen and sulfur atoms to inhibit abnormal growth of crystal grains, so that the crystal grain size distribution of the plating layer is more concentrated, the plating layer is flat and compact, the general size precision and appearance requirements can be met without post-treatment, and the method is suitable for metallization scenes sensitive to residual stress and has good application prospects. And the method is particularly suitable for surface treatment of chemical nickel-plating and gold-plating of the flexible printed circuit.