77 results about "Chromate and dichromate" patented technology

The disclosure relates to a method of producing a multi-metal catalyst film and of producing a reactor system for catalytic removal of a wide variety of contaminants (for example, nitrate, nitrite, perchlorate, chlorate, chromate, selenate, chlorophenols, 2,4-D, dicamba, atrazine, trichloroacetic acid, bromochloroiodomethane, NDMA, TCE, TCA, chloroform, freons, RDX, HMX, TNT, PFOA, and PFOS) from water and wastewater. The disclosure also relates to a method of using the multi-metal catalyst for the removal of such contaminants and a system comprising the multi-metal catalyst film for removing such contaminants.

The invention discloses a modified polyaniline synergistic flaky zinc-aluminum waterborne epoxy anticorrosive coating and a preparation method thereof. The anticorrosive coating comprises a component A and a component B in a mass ratio of (4-5): 1, the component A is prepared from the following components in parts by weight: 8 to 16 parts of waterborne epoxy resin, 55 to 75 parts of zinc powder, 5 to 10 parts of flaky zinc-aluminum powder, 0.3 to 0.6 part of a dispersing agent, 0.5 to 1 part of an anti-settling agent, 0.1 to 0.3 part of dodecylbenzene sulfonic acid doped polyaniline, 1 to 2 parts of an adhesion promoter and 6 to 10 parts of a first solvent; and the component B comprises the following components in parts by weight: 3-7 parts of a water-based amine curing agent, 1-2 parts of an anti-flash-rust auxiliary agent, 5-10 parts of a second solvent and 2-5 parts of deionized water. The obtained coating is compact, excellent in corrosion resistance, good in adhesive force, few in organic volatile matter, easy to prepare, convenient to operate and completely free of chromate, and the corrosion resistance far beyond that of conventional paint is achieved.

The invention belongs to the technical field of precision part machining, and discloses a precision part corrosion-resistant coating process, electrochemical treatment is chromic acid treatment, coating materials comprise epoxy resin coating, polyurethane coating and polytetrafluoroethylene coating, and a spraying technology comprises electrostatic spraying, air spraying and airless spraying. Hydrochloric acid is used for removing oxides on the surface of steel, phosphoric acid is used for removing rust on the surface of metal, through cooperation of acid pickling, passivation and electroplating, acid pickling and passivation can remove the surface oxides, the hardness and friction resistance of the surface of the metal can be improved, and electroplating can improve the surface hardness of parts, improve abrasion resistance and prevent corrosion; a protective film is formed through passivation treatment, further oxidation is prevented, chromate passivation soaking time is 10-30 minutes, phosphate passivation soaking time is 5-15 minutes, nitric acid passivation soaking time is 5-10 minutes, and durability, corrosion resistance and surface hardness of the precision part are improved.

The invention relates to the technical field of chemical mechanical polishing solutions, in particular to a chemical mechanical polishing solution for silicon carbide and a preparation method thereof, the polishing solution comprises a catalyst, abrasive particles, a dispersing agent, an oxidizing agent, a surfactant, an acid-base regulator and deionized water; the catalyst is nano platinum particles; the abrasive particles are aluminum oxide; the dispersing agent is at least one of sodium polyacrylate, sodium hexametaphosphate, hexadecyl trimethyl ammonium bromide and the like. The oxidizing agent is at least one of permanganate, pypocholoride, dichromate and the like; the surfactant is at least one of sodium dodecyl benzene sulfonate, organic bentonite and the like; the pH regulator is at least one of phosphoric acid, nitric acid, oxalic acid and citric acid. The polishing solution can effectively improve the removal rate of silicon carbide, and meanwhile, a polished silicon carbide wafer is high in flatness and free of scratches.

The invention discloses an electrolytic copper foil surface roughening method. The method comprises the following steps: performing degreasing, water washing and acid pickling activation pretreatment on an electrolytic copper foil to remove oil stains, impurities and an oxide layer on the surface; primary coarsening, curing treatment, secondary coarsening and post-treatment are sequentially carried out, and in the primary coarsening process, electrolyte containing specific components is utilized, and electrolysis is carried out under the specified current density, temperature and time; a specific curing liquid is adopted for curing treatment, and relevant parameters are controlled; an electrolyte containing lanthanum sulfate and other components is used for secondary coarsening; the post-treatment comprises water washing, repeated coarsening, chromate passivation and hot air drying. According to the electrolytic copper foil treated through the method, the surface roughness Rz is smaller than or equal to 2.5 micrometers, the (220) crystal face proportion exceeds 80%, the peeling strength with a substrate reaches 1.2 N / mm or above, the application requirements of high-speed and high-frequency PCBs and high-performance lithium ion batteries can be effectively met, and the product performance and quality are improved.

The present application relates to the technical field of insulating coating material, and particularly relates to a colored insulating coating composition of a lithium ion battery positive electrode sheet. The colored insulating coating composition of the lithium ion battery positive electrode sheet comprises the following components: a filler 50% to 98%, a pigment 1% to 80%, a binder 1% to 10% and a solvent 10% to 50%; wherein the pigment is selected from any one of metal oxides, chromates, carbonates, sulfates and sulfides. The colored insulating coating composition provided by the present application has good insulating performance, stable electrochemical properties and stable chemical properties. The present application further provides a lithium ion battery positive electrode sheet, which comprises a current collector, a positive electrode active material layer and a colored insulating coating; the colored insulating coating is coated on the surface of the current collector; the positive electrode active material layer is coated on the surface of the current collector and is arranged on one side of the colored insulating coating; the colored insulating coating is spliced and connected with the positive electrode active material layer; wherein the colored insulating coating is formed by the colored insulating coating composition as described above.

The invention discloses a method for simulating phosphorus and chromium migration during farmland irrigation with acid mine wastewater, which comprises the following steps: mixing a plant-derived organic material with deionized water to obtain a soluble organic matter; h2O2 oxidizes Fe < 2 + > to prepare pure Schwertmannite, and the pure Schwertmannite is placed in a phosphate solution to obtain phosphorus-loaded Schwertmannite; mixing the phosphorus-loaded Schwertmannite and the soluble organic matter with a chromate solution, carrying out oscillation adsorption, carrying out solid-liquid separation after adsorption, carrying out CrO and POconcentration change test on filtrate, and carrying out mineral characterization on separated solids; a three-dimensional fluorescence spectrum is adopted to track composition conversion of the soluble organic matter in the reaction process; and analyzing the component change of the supernate before and after the reaction by adopting Fourier transform ion cyclotron resonance mass spectrometry. The influence mechanism of DOM on phosphorus and chromium fate in mineral / water interface molecular fractionation is disclosed from the molecular level, and a scientific basis is provided for collaborative migration risk assessment of phosphorus and heavy metal in acid mine wastewater irrigation area farmland.

A stainless steel pouch film for a secondary battery, comprising: a stainless steel layer, any one of a first surface and a second surface being treated with chromate and corona; an outer resin layer formed on the first surface of the stainless steel layer; and an inner resin layer formed on the second surface of the stainless steel layer, wherein the outer resin layer comprises polyethylene terephthalate.

A method for determining the presence of chromium-6 (Cr-6) in a solid sample is described, comprising the steps of contacting the solid sample with a destruction liquid under conditions in which the Cr-6 of the solid sample dissolves in the destruction liquid as a chromate, providing a test solution; subjecting the test solution obtained in step (1) to a specific Cr-6 detection reaction, under conditions in which the presence of Cr-6 is detected; and detecting whether the specific Cr-6 reaction occurred in step (2); wherein the destruction liquid comprises an oxidant, which has a standard electrode potential E0 higher than the chromate.

The present invention relates to systems and methods for catalytic removal of oxidized contaminants (for example, nitrite, chromate, chlorate, trichloroethene, CFC-11, 4-nonylphenol, RDX, and perfluorooctanoate) from water and wastewater. In some aspects, the catalytic method of removing oxidized contaminants comprises using precious metal nanoparticles as catalysts to reduce the oxidized contaminants.

The invention discloses an organic inhibitor for galena and application of the organic inhibitor. The inhibitor is 3-mercapto-1 sodium propane sulfonate (MPS). Aiming at the characteristics of close copper and lead symbiosis, high iron and zinc content and fine disseminated particle size of raw ore, the method adopts the technological process of'copper and lead partial bulk flotation tailing discarding-bulk concentrate regrinding-copper and lead separation flotation ', and comprises the following steps: firstly, in a bulk flotation section, utilizing a zinc sulfate and sodium sulfite combined reagent to efficiently inhibit sphalerite and pyrite under a weakly alkaline condition; a large number of gangue and zinc-sulfur minerals are thrown away in advance; the method comprises the following steps of: carrying out superfine regrinding dissociation on obtained bulk concentrate, then carrying out separation operation, and in a copper-lead separation section, replacing traditional dichromate with 3-mercapto-1 sodium propane sulfonate (MPS), carrying out a closed-loop process of one-roughing, three-refining and three-sweeping, and supplementing an inhibitor in fine selection operation, so that efficient inhibition of galena and preferable flotation of chalcopyrite are realized. The technological process is rigorous in design, the reagent system is green and environmentally friendly, and the resource recovery rate of the low-grade complex ore is remarkably increased.

The present invention provides a continuous flow process for preparing nitroacetic acid ester compounds, belonging to the field of chemical pharmaceutical preparation. This process avoids the use of dichromate, thus preventing heavy metal pollution; avoids the use of nitric acid, thus avoiding the highly dangerous nitration reaction; and implements automated control, reducing the risks and costs of manual operation, thereby achieving safe, environmentally friendly, and efficient green chemical production.

The invention relates to the technical field of railway steel production, and particularly discloses an environment-friendly zinc-aluminum-magnesium coated steel rail and a preparation method thereof.The preparation method comprises the steps that the steel rail is pretreated to obtain a clean steel rail; alloy coating spraying is conducted on the clean steel rail, and a steel rail intermediate is obtained; performing surface hole sealing treatment on the steel rail intermediate; the chromium-free passivation solution comprises water-based acrylic resin, tannic acid, an organic silane coupling agent, silica sol, fluotitanic acid, polyethyleneimine, ethyl alcohol and deionized water. By adopting a chromium-free passivation technology, the technical problems that a chromate passivation technology is high in biotoxicity and does not meet the requirements of modern environmental protection development are effectively solved, and by adopting the water-based acrylic resin, the obtained coated steel rail has excellent corrosion resistance and can form a stable protective film on the metal surface; and the coating has the characteristics of good environmental protection property and convenience in construction, and can be well matched with various metal substrates, so that the service life of a metal workpiece is effectively prolonged.

The present application belongs to the technical field of electrolytic copper foil, and provides a chromium-free anti-oxidation method for electrolytic copper foil, which solves the problem of copper foil oxidation under chromium-free condition. The electrolytic copper foil is sequentially subjected to pickling, roughening I, roughening II, electroplating, passivation, silane coupling and drying to complete the treatment of the electrolytic copper foil. In the process of treating the copper foil, a Ni-Cu-Sn alloy layer is deposited on the surface of the copper foil through a specific composition of electroplating solution, so as to achieve the purpose of preliminary protection. Then, passivation is carried out in a passivation solution, and the passivation solution can effectively form an organic adsorption film to inhibit the oxidation of the electrolytic copper foil. On the basis of abandoning the addition of chromate, the present application can still well improve the anti-oxidation property of the electrolytic copper foil, and there is no oxidation discoloration under high-temperature and high-humidity conditions, and the electrolytic copper foil is resistant to chemical reagents, and the tensile strength under high temperature reaches 406 MPa, and has excellent mechanical properties.

The present invention discloses a method and system for measuring the concentration of divalent iron in the electrolyte of a Fe / Cr flow battery. The measurement method includes: mixing the positive electrolyte and the negative electrolyte in equal volume to obtain a mixed electrolyte; mixing the mixed electrolyte with an acid and an excessive amount of soluble dichromate so that the divalent iron in the mixed electrolyte is fully oxidized to trivalent iron to obtain an acidic test solution; introducing a pair of electrolysis electrodes and a pair of measurement electrodes into the acidic test solution, performing direct current constant current electrolysis on the acidic test solution through the electrolysis electrodes to reduce the trivalent iron in the acidic test solution, and simultaneously detecting the potential between the measurement electrodes by a potentiometer and recording the electrolysis duration required when the potential suddenly drops; obtaining the concentration of divalent iron in the electrolyte of the Fe / Cr flow battery according to the added amount of the soluble dichromate, the current magnitude of the constant current electrolysis, and the electrolysis duration. This measurement method has the advantages of accurate measurement results, high reliability, etc.

A method of surface treatments that provide additional characteristics to the surfaces of galvanized steel materials is provided. A chromate-free coating material is applied after texturing on the surface of the galvanizing steel material and obtaining the roughness values. The resulting galvanized steel material provides a stainless-steel alternative sheet materials with high corrosion resistance and anti-fingerprint characteristics.

The invention discloses an efficient flotation inhibitor for galena and pyrite separation and application of the efficient flotation inhibitor. The inhibitor adopts a ternary compound system of modified lignosulfonate, an organic phosphate corrosion inhibitor and an organic reducing agent, and all the components have a synergistic effect. And the used components are low-toxicity or non-toxic organic compounds and do not contain extremely toxic substances such as cyanide and dichromate, so that the alkaline tailing pollution of a high-alkali lime method is avoided, and the green mineral separation requirement is met. During application, efficient separation can be realized under a weak base condition, the pH of ore pulp does not need to be increased to 11 or above, lime consumption is greatly reduced, corrosion and abrasion of equipment are reduced, and meanwhile, the over-inhibition risk of galena is reduced. The dosage of a roughing inhibitor is small, and the total dosage is low due to subsection decrement addition during concentration. And the N, N-diethyldithiocarbamate is adopted as the collecting agent, the agent system is simple, and industrial implementation is easy. The inhibitor still has a good inhibition effect on pyrite activated by copper ions, overcomes the defect of poor adaptability of a traditional high-alkali method, and has strong adaptability to ores with different properties.

This surface-treated copper foil, comprising a heat-resistant treatment layer and a chromate treatment layer but without a roughening treatment layer, exhibits excellent heat resistance and corrosion resistance. Furthermore, because the amount of nickel and chromium adhering to the treated surface is small, there is less conductor loss due to dissimilar metals, and because of its low roughness and lack of conductor loss due to roughening particles, it is suitable for copper-clad laminates used in high-speed transmission printed circuit boards. [Solution] The arithmetic mean height Sa of the untreated copper foil surface is less than 0.27 μm, the unfolded interface area ratio Sdr is less than 6%, the surface area ratio calculated from Sdr is A, and the two-dimensional area of ​​the surface-treated copper foil surface is 1 m². 2 When the amount of nickel deposited per unit area (mg) is B, the surface area is 1 m². 2 The amount of nickel deposited per unit [B / A] is 5 mg to 31 mg, and the two-dimensional area of ​​the surface-treated copper foil surface is 1 m². 2 When the amount of chromium deposited per unit area (mg) is C, the surface area is 1 m². 2 Surface-treated copper foil with a chromium content per unit area [C / A] of 1 mg to 4 mg.

The invention relates to a solid catalyst system comprising a first chromium compound, a second chromium compound, a reaction product of an alkyl aluminium compound and a nitrogen containing compound and a silicon oxide support, wherein the first chromium compound is chromium trioxide or a compound convertible to chromium trioxide, the second chromium compound is a slilylchromate compound and the nitrogen containing compound is a cycloalkylamine compound having the general formula: R3—NH2, wherein R3 is selected from C3-C8 cycloalkyl groups.

Disclosed is a method for determination of the presence chromium-6 (Cr-6) in a solid sample, comprising the steps of contacting the solid sample with a destruction liquid under conditions wherein Cr-6 from the solid sample dissolves in the destruction liquid as a chromate, providing a test solution; subjecting the test solution obtained in step (1) to a specific Cr-6 detection reaction, under conditions wherein the presence of Cr-6 is detected; and detecting whether the Cr-6 specific reaction occurred in step (2); wherein the destruction liquid comprises an oxidator, having a higher standard electrode potential E0 than the chromate.

The invention provides a Ba-doped rare earth chromate ceramic material with high infrared emissivity and a preparation method of the Ba-doped rare earth chromate ceramic material, and belongs to the technical field of thermal barrier coating ceramic materials. The chemical general formula of the Ba-doped rare earth chromate ceramic material with high infrared emissivity is RE1-xBaxCrO3, x is more than or equal to 0.01 and less than or equal to 0.1, and RE is one of La, Nd and Sm. The grain size of the Ba-doped rare earth chromate ceramic material with high infrared emissivity is 0.5-10 [mu] m, the porosity is 0-10%, and the average emissivity of the Ba-doped rare earth chromate ceramic material at the infrared band of 200-2000 nm is not lower than 90%. The preparation method is a solid-phase reaction method. The Ba-doped rare earth chromate ceramic material with high infrared emissivity prepared by the invention has flexible and adjustable infrared emissivity, and the infrared emissivity can be adjusted by changing the doping amount of the Ba element. A solid-phase reaction method adopted for preparing the Ba-doped rare earth chromate ceramic material with high infrared emissivity is low in raw material cost, simple in process and low in equipment requirement.

The invention belongs to the technical field of automobile interior decoration manufacturing, and discloses a spraying-free material and a production device of an automobile spraying-free decoration. The spraying-free material comprises 90-95% of matrix resin, 0.5-3.5% of effect toner, 0.1-3% of basic toner and 0-20% of filler. The effect toner is at least one of aluminum powder, glass beads, glass residues, pearl powder, straw powder and wood powder; the basic toner comprises at least one of an inorganic pigment and an organic pigment; the inorganic pigment is at least one of a metal oxide, a metal sulfide, a metal sulfate, a metal chromate, a metal molybdate and carbon black, the effect toner is matched with the base color regulation of the basic toner to realize a three-dimensional decorative effect, and meanwhile, due to the synergistic effect of the auxiliary master batch and the matrix resin, the three-dimensional decorative effect is realized. Appearance defects caused by metal powder agglomeration in traditional mixing are avoided; and the filler is selectively added, so that the impact resistance of the material can be improved through the rigidity of the glass beads, and the environmental protection property can be enhanced by virtue of the biocompatibility of the straw powder.

The utility model provides a corrosion-resistant die-casting aluminum alloy ingot, and relates to the technical field of aluminum alloy ingots. The corrosion-resistant die-casting aluminum alloy ingot comprises an aluminum alloy ingot body, fixing blocks are fixed to the two sides of the aluminum alloy ingot body correspondingly, connecting blocks are fixed to the separated ends of the two fixing blocks correspondingly, limiting frames are fixed to the two sides of the aluminum alloy ingot body correspondingly, and limiting grooves are formed in the separated sides of the two limiting frames correspondingly; two upper grooves are formed in the upper side of the aluminum alloy ingot body. According to the corrosion-resistant die-casting aluminum alloy ingot, the two aluminum alloy ingots are drawn close to each other in a back-to-back state through manpower, the stable clamping effect is achieved, the aluminum alloy ingots can be tightly connected into a whole, and then the effect of improving the use stability of the aluminum alloy ingots is achieved; according to the aluminum alloy ingot composed of the fluorocarbon coating, the ceramic coating, the anodic oxidation film layer, the rare earth conversion film layer, the corrosion-resistant alloy layer and the chromate conversion film layer, the corrosion-resistant effect of the aluminum alloy ingot is achieved, and the effect of improving the using effect of the aluminum alloy ingot is achieved.

The invention provides an air conditioner heat exchange material and a preparation method thereof.The method comprises the steps that an aluminum base material is subjected to degreasing cleaning and chromate conversion in sequence, and a conversion film with the thickness being 0.5-1 micrometer is formed on the surface of the aluminum base material; mixing the coating in proportion, dispersing for 30-45 minutes in a high-speed dispersion machine at the rotating speed of 2000-3000 rpm, and adjusting the viscosity to 25-35 seconds; a precise steel roller with the surface roughness Ra ranging from 0.05 micrometer to 0.1 micrometer is used for conducting coating on the surface of the aluminum base material, the coating speed ranges from 10 m / min to 15 m / min, and the thickness of a wet film is controlled to range from 8 micrometers to 12 micrometers; and a natural gas hot air circulation device is used for conducting multi-stage curing on the coated aluminum base material, and the multi-stage curing sequentially comprises the steps of curing for 2-3 minutes at the temperature of 80-100 DEG C, curing for 3-5 minutes at the temperature of 150-180 DEG C and curing for 1-2 minutes at the temperature of 220-250 DEG C. Through the coating material and the coating technology, quick discharging of defrosting water is achieved, and then the aluminum base material is subjected to heat preservation. And the operation efficiency of the heat pump air conditioner and the electric automobile heat exchanger is improved.

The present invention relates to a stainless steel pouch film for a secondary battery, comprising: a stainless steel layer in which either one of a first surface and a second surface is treated with chromate and corona; an outer resin layer formed on a first surface of the stainless steel layer; and an inner resin layer formed on a second surface of the stainless steel layer, wherein the outer resin layer includes polyethylene terephthalate.

The invention relates to the technical field of metal material corrosion resistance research, in particular to a preparation method of a rare earth conversion coating on the surface of an AZ91D magnesium alloy material. According to the preparation method, the AZ91D magnesium alloy is placed in a rare earth passivation solution to be soaked, and preparation of the rare earth conversion coating on the surface of the AZ91D magnesium alloy is completed; the rare earth passivation solution is rare earth salt, a hydrogen peroxide solution and water; the rare earth salt is one or two of cerium chloride and lanthanum chloride. Cerium chloride, lanthanum chloride or cerium chloride and lanthanum chloride are used for replacing highly toxic chromate; precise control over the thickness, density and component distribution of a film layer is achieved by improving key process parameters such as passivation temperature, time, concentration and a soaking mode, the uniformity and matrix binding force of the conversion film are remarkably improved, local corrosion weak points are avoided, the high-quality rare earth conversion film is formed, and the service life of the rare earth conversion film is prolonged. And the corrosion resistance of the AZ91D magnesium alloy is improved through the rare earth synergistic effect.

This invention relates to an organic-inorganic hybrid passivation solution and method for zinc-aluminum-magnesium plating to resist blackening. It primarily aims to provide a novel, pollution-free passivation solution and treatment method for enhancing the anti-blackening and corrosion resistance of zinc-aluminum-magnesium products, belonging to the field of metal material surface treatment technology. The passivation solution contains a key component, an acrylic acid-phosphonic acid copolymer, which chelates with zinc, aluminum, and magnesium ions on the plating surface through phosphonic acid groups in its molecular chain, constructing a chemically bonded organic-inorganic hybrid network that significantly improves the adhesion and corrosion resistance of the passivation film. This copolymer remains stable under strongly acidic conditions with a pH of 1-3 and can form a film normally. The passivation solution of this invention is chromium-free, environmentally friendly and safe, and can be directly applied to continuous zinc plating production lines without a separate degreasing process, simplifying the process flow. Zinc-aluminum-magnesium plating treated with this invention exhibits excellent resistance to white rust and blackening in salt spray tests, effectively replacing traditional chromate passivation processes.

The invention discloses a coating liquid for improving compatibility of silicon steel and insulating paint as well as a preparation method and application of the coating liquid, and belongs to the technical field of silicon steel sheet insulating coatings. The coating comprises a stabilizer solution and an insulating solution, the insulating liquid comprises the following raw materials: 1-10% of zinc chromate, 1-10% of magnesium chromate, 1-10% of calcium chromate, 1-5% of glycerol, 1-7% of boric acid, 1-8% of an acrylic emulsion and the balance of water; the stabilizer solution is prepared from the following raw materials in parts by mass: 0.25 to 0.5 part of trisodium citrate, 0.25 to 0.5 part of EDTA (Ethylene Diamine Tetraacetic Acid) disodium and 5.0 to 10.0 parts of water. According to the insulating liquid disclosed by the invention, the ternary chromate is used as an inorganic framework, the acrylic emulsion is used as an organic bridging phase, and the stabilizer is supplemented to form a two-component system, so that the interfacial compatibility between the silicon steel surface and the water-soluble insulating paint is remarkably improved.

There is a metal pipe coated on at least a section of the metal pipe with a polyolefin coating system. The system has the following layers: (a) optionally, a corrosion protective layer of a chromate, phosphate or other salt; (b) a polyolefin based adhesive, preferably in a thickness of 0.3-5 mm; (c) a PE or PP coating layer, preferably in a thickness of 1-10 mm; and (d) optionally, an adhesion promoting layer between the polyolefin based adhesive and a PE or PP layer. The polyolefin based adhesive contains an organic phase having substantially saturated hydrocarbons. The adhesive has amorphous polypropylene, ethylene-propylene copolymers or poly(iso)butylene (co)polymers. The adhesive is flowable when a pressure of 10 kgf / cm2 is applied. The PE or PP coating is a continuous layer over the coated section. The polyolefin based adhesive adheres to both the metal pipe and to the PE or PP coating.

Provided is a tin-plated steel sheet which is more excellent in yellowing resistance in a steel sheet for containers having a film layer containing zirconium without being subjected to a conventional chromate treatment. A tin-plated steel sheet is adopted which has a steel sheet, a tin plating layer located on at least one surface of the steel sheet, and a film layer located on the tin plating layer and containing zirconium oxide and tin sulfide, in which an adhesion amount of the tin-based plating layer is 0.1 g / m2 or more and 15 g / m2 or less in terms of the amount of metal Sn, an adhesion amount of the zirconium oxide in the film layer is 0.2 mg / m2 or more and 50 mg / m2 or less in terms of the amount of metal Zr, and an adhesion amount of the tin sulfide is 0.1 mg / m2 or more and 5 mg / m2 or less in terms of the amount of sulfur.