25 results about "Sodium tartrate" patented technology

The invention discloses an environment-friendly electrolyte for anodic oxidation of titanium and titanium alloy workpieces and an electrolytic coloring method. The electrolyte comprises 8-12 parts of lactic acid, 5-10 parts of sodium tartrate, 2-5 parts of sodium bicarbonate and the balance of deionized water. The electrolytic coloring method comprises the steps of pretreatment, anodic oxidation coloring and aftertreatment. The pretreatment comprises alkali washing oil removal, water washing and laser treatment; and an electrolyte mixed by 8-12 parts of lactic acid, 5-10 parts of sodium tartrate, 2-5 parts of sodium bicarbonate and the balance of deionized water is used for anodic oxidation coloring. The post-treatment comprises sealing treatment and drying. According to the technical scheme, the technical problems that the anodic oxidation coloring technology is completely free of fluorine, low in toxicity and safe to operate, and the oxidation waste liquid is free of pollution and easy to treat can be solved, existing pretreatment steps can be simplified, and meanwhile uniform coloring is achieved.

The present invention belongs to the technical field of scale and corrosion inhibition treatment for industrial circulating cooling water, and relates to a phosphorus-free composite scale and corrosion inhibitor for circulating water, its preparation method, and application. The composite scale and corrosion inhibitor comprises the following components by weight: 26-33% disodium cocoamphodipropionate, 8-10% sodium tartrate, 1-2% sodium thioglycolate, 0.1-0.2% concentrated hydrochloric acid, and 54.8-64.9% deionized water. The composite scale and corrosion inhibitor provided by the present invention not only has high scale inhibition performance, but also exhibits excellent corrosion inhibition performance in various circulating cooling water systems, exhibits broad-spectrum stability, and its key components are highly efficient and environmentally friendly, making it particularly suitable for use in industrial circulating cooling water systems.

This invention proposes a sperm staining kit based on a sequential staining strategy of tail pre-staining – rapid differentiation – enhanced nuclear staining. A gentle fixation with 4% paraformaldehyde and acetate buffer preserves the complete nucleic acid of the sperm head and the protein structure of the tail. The addition of PVP K30 and Tween-20 effectively inhibits non-specific adsorption and reduces staining background interference. Brilliant Green SF combined with sodium tartrate is used for specific staining of the sperm tail, followed by rapid differentiation to wash away non-specific staining. Nuclear staining is performed using toluidine blue O combined with sodium chloride and sodium tetraborate hydrate, specifically binding to DNA and enhancing color development stability, resulting in a blue sperm head and a light green tail with clear color contrast. This invention produces a clean staining background, accurately distinguishing the morphology of the sperm head, acrosome, and tail, significantly improving the accuracy of microscopic identification of abnormal sperm such as large-headed, small-headed, curled-tailed, broken-tailed, and short-tailed sperm. It is suitable for detecting sperm morphology and abnormality rates in breeding males.

A process for producing a nitrogen-doped peony-shaped molybdenum oxide, comprising the following steps: (1) adding a regulator to a molybdenum-containing solution for reacting, concentrating and thermally treating to obtain a peony-shaped molybdenum oxide; and (2) dissolving the peony-shaped molybdenum oxide in a conditioning agent and adding an amine source for standing, centrifuging, washing, and heat-treating, thereby obtaining the nitrogen-doped peony-shaped molybdenum oxide; wherein the regulator is at least one of the following: nitric acid, ammonium nitrate, sodium persulfate, ammonium persulfate, concentrated sulfuric acid, H2O2, ozone, sodium hypochlorite, wherein in step (2), the conditioning agent is at least one of the following: sodium acetate, ammonium acetate, sodium formate, diaminoethane, sodium oxalate, ammonium benzoate, sodium phenylacetate, sodium propionate, sodium tartrate, sodium citrate, ammonium citrate; and wherein in step (2) the amine source is at least one of the following: aniline, dimethylamine, trimethylamine, benzylamine, phenethylamine, ethylamine, diethylamine, propylamine, phenylenediamine, xylylenediamine, amphetamine.

The application belongs to the technical field of pharmaceutical preparations, and particularly relates to an indocyanine green preparation and a preparation method and application thereof. The preparation is a liquid preparation or a freeze-dried preparation, raw materials for preparing the preparation include indocyanine green, phospholipid, cholesterol, a freeze-drying protective agent, water and a pH regulator, the pH regulator is selected from one or more of sodium citrate, potassium citrate, sodium tartrate, sodium acetate, sodium lactate and sodium succinate, and the pH of the preparation is adjusted to 6.0-8.5. By means of a specific organic acid salt buffer system and a specific preparation process (the freeze-drying protective agent is added before lipid film deposition), the application can specifically inhibit the growth of impurities with RRT 0.7 and RRT 0.3, respectively, and significantly improve the chemical stability of the preparation. Meanwhile, the preparation can realize accurate positioning of sentinel lymph nodes and second and third lymph nodes, and can be used for preparing a lymph tracer. The application effectively solves the technical problems of rapid impurity growth, poor stability and inaccurate multi-stage lymph positioning of the existing ICG preparation.

The invention relates to the technical field of batteries, in particular to a battery monomer, a preparation method of a secondary battery, an electrolyte and an electric device. Each single battery comprises a positive pole piece, a negative pole piece and an electrolyte, at least partial structures of the positive pole piece and the negative pole piece are located in the electrolyte, the electrolyte comprises a metal ion complexing agent, and the metal ion complexing agent comprises an organic complexing agent and / or an inorganic complexing agent; the organic complexing agent comprises at least one of phenanthroline, a crown ether compound, oxalic acid, citric acid, tartaric acid, ethylenediamine tetraacetic acid and deferoxamine; and / or the inorganic complexing agent comprises at least one of sodium oxalate, sodium citrate, sodium tartrate and sodium ethylene diamine tetracetate. The metal ion complexing agent in the electrolyte can be combined with impurity metal ions in the electrolyte to form a stable complex, so that the risk that the impurity metal ions are separated out into dendritic metal foreign matters at an anode to pierce a diaphragm to cause self-discharge of the battery is reduced.

The invention discloses a detection pretreatment method for an amide herbicide in an environmental water body, and belongs to the technical field of pesticide residue analys.The method comprises the steps that the environmental water body containing the amide herbicide is centrifuged, and supernate is obtained; adding sodium tartrate and ascorbic acid into the supernate, and carrying out vortex mixing to obtain a mixed solution; the pH value of the mixed solution is measured, and if the pH value is not in the range of 6.5-7.5, the pH value of the mixed solution is adjusted to 6.5-7.5; filtering the mixed solution with the pH value of 6.5-7.5 to obtain a filtrate; cooling the filtrate to 60 DEG C below zero to 80 DEG C below zero, and pre-freezing; freeze-drying the pre-frozen filtrate, wherein the vacuum degree is kept to be less than or equal to 10Pa in the freeze-drying process; dissolving the freeze-dried sample by using acetonitrile or normal hexane, and standing; filtering the sample after standing for the second time for subsequent detection; according to the pretreatment method, the recovery rate of the sample is improved, and the variable coefficient of a test result is reduced.

The application discloses a phosphorus-free scale and corrosion inhibitor easy to be biodegraded and a preparation method thereof, and belongs to the technical field of water treatment. The phosphorus-free scale and corrosion inhibitor comprises the following components in parts by weight: 360-400 parts of water, 30-40 parts of modified polyepoxysuccinic acid, 20-30 parts of a composite adsorption corrosion inhibitor, 20-25 parts of hydrolyzed polymaleic anhydride, 8-15 parts of sodium gluconate, 4-6 parts of alanine, 2-5 parts of sodium alginate and 1-3 parts of sodium carboxymethyl cellulose. The composite adsorption corrosion inhibitor is formed by a complex of plant polyphenol and hydroxypropyl-beta-cyclodextrin, and then is reacted with sodium tartrate, sodium citrate and polyaspartic acid to obtain the composite adsorption corrosion inhibitor. The modified polyepoxysuccinic acid is obtained by modifying epoxysuccinic acid with urea, N-hydroxymaleimide and citraconimide. The phosphorus-free scale and corrosion inhibitor prepared by the application is easy to be biodegraded and has good scale and corrosion inhibition performance.

The invention relates to the technical field of fine chemical engineering, in particular to a method for green production of D-tartaric acid by a double-compartment bipolar membrane process, which comprises the following steps: preparing a raw material sodium tartrate solution generated by hydrolysis of a sodium epoxysuccinate solution through a strain into a raw material solution with the mass concentration of 7-8.5%, and carrying out electrodialysis on the raw material solution through a double-compartment bipolar membrane electrodialysis device to obtain D-tartaric acid. Directional ion migration is realized under the action of direct current; sodium ions enter an alkali side through a positive membrane and are combined with hydroxyl ions generated by dissociation of a bipolar membrane to generate a sodium hydroxide solution with the mass concentration of 3-4%; hydrogen ions enter an acid side through the bipolar membrane and are combined with tartrate ions to generate a D-tartaric acid solution, and a D-tartaric acid finished product is obtained through subsequent concentration and drying; through the mode, one-step conversion from sodium tartrate to D-tartaric acid is realized, the cost is reduced, and the yield is improved.

This invention relates to the field of functional textile materials technology, specifically disclosing a nonwoven fabric with both flame-retardant and anti-aging properties and its preparation method. A functional filler is filled into the porous structure of the nonwoven fabric; the functional filler is a magnesium-aluminum double hydroxide with a flower-like structure, and its surface is loaded with nanoparticles of tin-doped cerium dioxide. A high specific surface area magnesium-aluminum double hydroxide is prepared by a hydrothermal method using urea and sodium tartrate in synergistic regulation; further, tin-doped cerium dioxide nanoparticles are grown in situ on its surface by a hydrothermal method, forming a unique "flower-particle" composite structure. The layered magnesium-aluminum double hydroxide exhibits excellent flame-retardant and smoke-suppressing effects, while the tin-doped cerium dioxide efficiently absorbs ultraviolet light, significantly improving anti-aging properties. The synergy of these two components endows the nonwoven fabric with excellent and long-lasting flame-retardant and UV-aging-resistant properties, making it suitable for high-end applications such as special protection, outdoor sunshade, and construction.

The invention discloses a composite cleaning agent for a screw of an injection molding machine as well as a preparation method and application of the composite cleaning agent, and relates to the field of cleaning agents. The water-based adhesive comprises the following components: 15-25% of azodicarbonamide, 8-12% of a water-soluble azo initiator, 8-12% of a fluorinated surfactant, 3-7% of triethanolamine oleate, 3-7% of diphenylmethane diisocyanate, 12-18% of sodium tartrate, 12-18% of sodium carbonate and the balance of alkaline ionized water. According to the composite injection molding machine screw cleaning agent and the preparation method and application thereof, stubborn residues such as pigment and carbon black can be rapidly removed through multiple synergistic effects, and the cleaning time can be shortened to 5-20 minutes; the consumption of resin for cleaning is greatly reduced, and tests show that the resin cleaning cost can be saved by up to 85% and the time cost can be saved by 80%.

The embodiment of the invention discloses a carbon felt electrode loaded with a copper sulfide / graphdiyne composite catalyst as well as a preparation method and application of the carbon felt electrode. The method comprises the following steps: preparing an electroplating solution containing copper sulfate, sodium citrate, sodium tartrate and lauryl sodium sulfate: electroplating in the electroplating solution by taking a pre-oxidized carbon felt as a cathode and a copper sheet as an anode; washing with deionized water to be neutral, and drying to obtain a copper modified carbon felt material; preparing a diethyl ether solution containing a hexaacetylene benzene monomer, and then adding pyridine; soaking the modified carbon felt material in the diethyl ether solution, washing and drying to obtain a copper modified carbon felt material on which graphdiyne grows; preparing a thiourea-containing ethylene glycol solution, soaking the copper modified carbon felt material on which graphdiyne grows in the ethylene glycol solution, and carrying out heat preservation at a preset temperature for a preset time; and washing and drying to obtain the required carbon felt electrode. The limitation of a traditional carbon felt electrode in the aspects of catalytic activity, conductivity and stability is effectively overcome, and the comprehensive performance of the electrode is improved.

The invention discloses an alkali polishing additive for silicon wafers. The alkali polishing additive comprises organic amine, a complexing dispersant, inorganic salt and a surfactant. The organic amine is one or more of dichloroaniline, diethanol amine and dimethylamine, and the organic amine is 1-5 parts. The complexing dispersant is one or more of sodium benzoate, sodium alginate and sodium citrate, and the complexing dispersant is 3-8 parts. The inorganic salt is one or more of sodium sulfate, lauryl sodium sulfate, sodium pyrosulfate and sodium tartrate, and the inorganic salt is 1-5 parts. The surfactant is one or more of dodecyl dimethyl betaine, sodium alkyl naphthalene sulfonate and alkyl glycoside, and the amount of the surfactant is 5-8 parts; the additive also comprises deionized water; according to the silicon wafer alkali polishing additive, the organic amine is added, the back polishing effect of the same tower footing is obtained under the condition of low weight loss, the battery efficiency is improved, meanwhile, the additive synthesis device can stir and dissolve all the raw materials evenly, and the alkali polishing additive is obtained.

The invention belongs to the technical field of electrolytic copper foil preparation, and discloses a low-chromium washing-free anti-oxidation liquid for an electrolytic copper foil, a preparation method of the low-chromium washing-free anti-oxidation liquid and a washing-free anti-oxidation process. The anti-oxidation liquid comprises the following components: chromium sulfate, ammonium molybdate, gamma-aminopropyltriethoxysilane, phytic acid, nano silicon dioxide, sodium tartrate, citric acid, a pH value regulator and water. According to the invention, the synergistic ratio of chromium sulfate, ammonium molybdate and gamma-aminopropyltriethoxysilane is limited, and nano silicon dioxide is introduced to enhance the compactness of the film layer, so that the chromium content is remarkably reduced, and meanwhile, efficient anti-oxidation protection under a washing-free condition is realized. The matched stepped hot air drying process further avoids the problem of copper foil warping caused by traditional high-temperature drying, and a more environment-friendly and more reliable surface treatment solution is provided for the electrolytic copper foil for the lithium ion battery.

The invention discloses a preparation method of petal-shaped ferromagnetic metal particles, which is characterized in that growing magnetic metal particles generate anisotropy based on an external magnetic field, and anisotropic petal-shaped ferromagnetic metal particles are prepared by a hydrothermal synthesis method. Weighing cobalt chloride hexahydrate and sodium tartrate, and adding deionized water for dissolving; adding a hydrazine hydrate solution with the concentration of more than 80wt%, and uniformly stirring; dropwise adding a sodium hydroxide solution in a stirring state; putting the prepared solution into a reaction kettle, and adding magnetons; then, raising the temperature of the reaction kettle to 100-200 DEG C, reacting for 4-16 hours, and cooling to room temperature; centrifugally separating and drying to obtain a product. The magnetocrystalline anisotropy of the magnetic metal particles is utilized to break through the Snoek constant, high-frequency microwave absorption is achieved, and the performance requirements of high-frequency application materials can be met.

The invention relates to the technical field of medicine, in particular to a metal ion complexing agent, a metronidazole gel preparation thereof and a preparation method of the metronidazole gel preparation. The first component is selected from at least one of disodium edetate, sodium calcium edetate and tetrasodium edetate; the second component is selected from at least one of sodium tartrate and sodium citrate; wherein the mass ratio of the first component to the second component is (8: 1)-(1: 6). The metronidazole gel preparation has the advantages that the preparation process is simple, the stability is better, and the safety and the effectiveness can be guaranteed.

This invention provides a method for preparing and applying a modified layered bimetallic hydroxide. The preparation method includes the following steps: Step 1, preparing a mixed solution of Ca(NO3)2 and Al(NO3)2, labeled as solution A, and preparing a mixed solution of NaNO3 and NaOH, labeled as solution B; Step 2, adding solution A dropwise to solution B to obtain a mixed slurry; Step 3, hydrothermal reaction; Step 4, cooling, centrifuging, washing, and drying for later use; Step 5, preparing a sodium tartrate solution and adjusting the pH; Step 6, mixing the solid sample obtained in Step 4 and the solution obtained in Step 5, and stirring; Step 7, centrifuging, washing, and drying. This invention enables the embedding of environmentally friendly tartrate ions into a calcium-aluminum layered bimetallic hydroxide. Chloride ions in a corrosive environment can enter the interlayer of the layered bimetallic hydroxide to reduce the concentration of free chloride ions in the system. Simultaneously, tartrate ions are released from the interlayer, forming an adsorption film on the surface of the metal substrate.

The invention discloses a preparation method of an Al2O3 microsphere loaded nickel metal bifunctional catalyst with a high specific surface area and application of the Al2O3 microsphere loaded nickel metal bifunctional catalyst in hydrodeoxygenation reaction of biomass derivatives. According to the preparation method, sodium tartrate is taken as a template agent, urea is taken as a precipitator, Al2 (SO4) 3.18 H2O is taken as an aluminum source, Al2O3 microspheres are prepared by adopting a hydrothermal method, then active metal is loaded on an Al2O3 microsphere carrier by adopting an impregnation method, and the Ni / Al2O3 catalyst is synthesized through calcination reduction. The catalyst can efficiently catalyze catalytic transfer hydrogenation (CTH) of biomass derivative compounds such as levulinic acid (LA) to prepare an important chemical intermediate gamma-valerolactone. According to the invention, on the basis that Al2O3 is an acidic site, the active metal component is introduced, so that the catalyst shows good hydrodeoxygenation activity and selectivity of a target product in the reaction process, and efficient hydrodeoxygenation of levulinic acid is realized. The prepared Ni / Al2O3 catalyst has the characteristics of simple preparation process, low cost, mild reaction conditions, high catalytic activity and the like. Even in the absence of exogenous H2, the catalyst can effectively catalyze the cascade reaction of esterification and hydrogenation lactonization, improves the safety of the reaction operation process, and has a good application prospect.

To provide a main material that can maintain excellent fluidity when made into a slurry, even in low-temperature environments such as winter. [Solution] A main material for use in a two-component hydraulic composition for 3D printers is provided, wherein the main material comprises a binder, a water-reducing agent, a retarder, and fine aggregate, the binder comprises cement and silica fume, the retarder comprises sodium gluconate and sodium L-tartrate, the content of the retarder is 0.5 parts by mass or more per 100 parts by mass of the binder, and the mass ratio α of the content of sodium L-tartrate to the content of sodium gluconate is 1.0 or more.

The invention provides a combined inhibitor for flotation separation of copper-zinc sulfide ore and application of the combined inhibitor. The combined inhibitor comprises sodium tartrate and zinc sulfate. According to the application of the combined inhibitor for flotation separation of the copper-zinc sulfide ore in flotation separation of the copper-zinc sulfide ore, the application comprises the following steps that firstly, after a copper-zinc sulfide ore sample is crushed and ground, pulp mixing is conducted, and copper-zinc sulfide ore pulp is obtained; secondly, a pH regulator, a combined inhibitor, a roughing collecting agent and a foaming agent are sequentially added into the copper-zinc sulfide ore pulp in the first step, and roughing copper concentrate and roughing zinc concentrate are obtained; and thirdly, a combined inhibitor is added into the roughed copper concentrate obtained in the second step for first-time concentration, then the combined inhibitor is added for second-time concentration, and final copper concentrate is obtained. According to the method, the content of zinc in the copper concentrate is greatly reduced while the copper recovery rate is guaranteed, and the recovery rate of copper and zinc resources is effectively increased. Compared with a single zinc sulfate inhibitor or a sodium tartrate inhibitor, the copper-zinc separation efficiency is high, and the dosage of the combined inhibitor is greatly reduced.

The invention discloses a preparation process of a high-performance sealing material for a gas storage end of a compressed gas energy storage mine, which comprises the following steps: (1) dispersing magnesium oxide powder into absolute ethyl alcohol containing a silane coupling agent, heating and preserving heat to obtain pretreated magnesium oxide powder; and (2) adding the solid product into a sodium tartrate solution, standing, adding the solid product into a Mg < 2 + > source solution, uniformly mixing, separating the solid product, and drying to obtain modified magnesium oxide powder a. And (3) uniformly mixing the modified magnesium oxide powder a with dihydric phosphate to obtain the auxiliary cementing material. And (4) uniformly mixing Portland cement, the auxiliary cementing material, fine aggregate, silica fume, fly ash, the modified magnesium oxide powder b, basalt fiber and a water reducing agent as raw materials, adding mixing water, and uniformly stirring. The sealing material disclosed by the invention not only has good bonding capacity with the rock wall of the gas storage, but also has good mechanical strength, and can better adapt to a load applied by high-pressure air in the gas storage.

The invention provides a preparation method of a gas-phase antirust film for carbon steel, and belongs to the technical field of rust prevention, the preparation method comprises the following steps: taking potassium sodium tartrate, sodium tungstate and polyaspartic acid, and carrying out microencapsulation treatment by using sodium silicate to obtain silicate microcapsules; maleic anhydride grafted PP (polypropylene) and LDPE (low-density polyethylene) are jointly used as base materials, and n-decanoic acid and the silicate microcapsules are added, so that the gas-phase antirust film for the carbon steel is prepared. According to the prepared gas-phase antirust film for the carbon steel, LDPE, PE-g-MAH, n-decanoic acid and a silicate microcapsule system can play a role at the same time on the two time scales of short-term rapid inhibition and long-term continuous rust prevention, and the efficient and environment-friendly gas-phase antirust film for the carbon steel with good mechanical performance is formed.

The invention discloses a method for preparing a copper-nickel alloy for a solid-state battery through an acidic system, and belongs to the technical field of solid-state batteries. Preparing a copper-nickel alloy by adopting an electro-deposition method; the electrolyte comprises the following components: copper sulfate pentahydrate and nickel sulfate hexahydrate as raw materials, sodium citrate as a single complexing agent or a mixed complexing agent consisting of sodium citrate and sodium tartrate, a buffering agent, conducting salt and a brightener. According to the method, the components and the thickness of the alloy are adjusted by adjusting the type and the input amount of the complexing agent and changing technological parameters (the electrolyte temperature, the current density and the like), and the copper-nickel alloy with the tensile strength higher than 1000 MPa, the ductility higher than 3.97% and the high nickel content can be prepared. The electrochemical electrolysis preparation technology is simple, high temperature is not needed, the production cost is low, the product impurity content is low, the obtained copper-nickel alloy is excellent in corrosion resistance, the coating thickness is uniform, electro-deposition can be conducted at the normal temperature, energy is saved, and the method is suitable for large-scale industrial production.

The invention discloses a particle flow regulator and a preparation method and application thereof, and belongs to the technical field of oilfield chemistry. The invention discloses a particle flow regulator. Comprising the following components in parts by weight: 0.3-2 parts of aminated carbon quantum dot dispersion liquid, 20-35 parts of water-based organic silicon modified high-temperature-resistant resin emulsion, 2-5 parts of sodium dodecyl diphenyl ether disulfonate, 1-4 parts of caprolactam blocked isophorone diisocyanate, 1-4 parts of polyoxyethylene-polyoxypropylene ether segmented copolymer, 1-3 parts of alkaline silicon-aluminum sol, 0.5-2 parts of silane coupling agent and 0.5-2 parts of sodium tartrate. 0.5 to 2 parts of sulfonated polyether ether ketone, 0.1 to 0.5 part of isothiazolinone derivative and 0.1 to 0.5 part of defoaming agent. In addition, the invention further provides a preparation method of the particle flow regulating agent and application of the particle flow regulating agent in profile control and water plugging of an oil field. The particle flow regulator provided by the invention realizes delayed formation of high-strength and non-flowing plugging particles.

To provide a producing method of a high water content rice food product having desired taste and texture of cooked rice and rice cooking preparation for producing the high water content rice food product.SOLUTION: A producing method of a high water content rice food product includes a step of adding (1) protein and (2) organic acid salt selected from a group consisting of sodium gluconate, sodium lactate, sodium fumarate, sodium tartrate, sodium citrate, sodium acetate, and sodium ascorbate to raw rice. Rice cooking preparation for producing the high water content rice food product includes (1) and (2).SELECTED DRAWING: None