61results about How to "Inhibit "corrosion" patented technology

In a high pressure and high temperature reaction system suitable for oxidative waste treatment, particularly a reaction system for supercritical water oxidation (SCWO), a method is disclosed for injecting a first fluid of a first temperature at a first flow rate into a second fluid of a second temperature at a second flow rate, mixing the first and the second fluids within a mixing length (115, 215), and wherein the first and second temperatures and the first and second flow rates are selected such that a temperature of the mixed fluids downstream of said mixing length (115, 215) is obtained, at which said first fluid being substantially non-corrosive.

The invention relates to the technical field of lithium ion batteries, in particular to a coating structure applicable to high-voltage charge-discharge and a manufacturing method of the coating structure. A first metal oxide layer and a second metal oxide layer coat the surface of a cathode material layer, the first metal oxide layer coats the surface of the cathode material layer, the second metal oxide layer coats the outer surface of the first metal oxide layer, and the weight of the first metal oxide layer occupies 40 to 70 percent of the total weight of the first metal oxide layer and the second metal oxide layer. The coating structure contains active substances, so the first charge-discharge efficiency of a material is improved; by a surface ceramic oxide layer, corrosion of hydrogen fluoride (HF), release of metal ions and extraction of active oxygen are well inhibited; and a lithium ion secondary battery with the structure is applicable to charge-discharge at high voltage of more than 4.30 V, high in energy density, high in cycle performance and high in safety performance, and high-temperature storage performance is greatly improved.

A corrosion-inhibiting cleaning composition for semiconductor wafer processing includes hydrogen peroxide at a concentration in a range from about 0.5 wt % to about 5 wt %, sulfuric acid at a concentration in a range from about 1 wt % to about 10 wt %, hydrogen fluoride at a concentration in a range from about 0.01 wt % to about 1 wt %; an azole at a concentration in a range from about 0.1 wt % to about 5 wt % and deionized water. The azole operates to inhibit corrosion of a metal layer being cleaned by chelating with a surface of the metal layer during a cleaning process.

A mobile water conversion system including an electro-coagulation stage, a microfiltration stage, a cooling stage, a nanofiltration stage, and a reverse osmosis stage. The electro-coagulation stage receives heated input water, such as geothermal brackish water, and reduces total suspended solids. The microfiltration stage removes suspended solids and dissolved solids. The cooling stage provides cooled brine water. The nanofiltration stage removes hardness from the cooled brine water to provide sodium brine water. A portion of sodium brine water is provided to circulating water in the cooling stage. The reverse osmosis stage reduces sodium content and provides fresh water suitable for a specified purpose, such as fracking.

The invention relates to a water injected pitting-corrosion composite inhibitor and an application thereof. The composite inhibitor is composed of agent A and agent B, wherein the agent A comprises 10%-30% of imidazoline quaternary ammonium salts, 5%-15% of organic acid amide, 1%-15% of nonionic surfactants, 1%-8% of long-chain alkyl quaternary ammonium salts, 2%-6% of sulfocompounds, 1%-8% of aromatic acid or aromatic acid salts and the balance solvents; and the agent B is a cationic surfactant. At the beginning of the use, the concentration of the agent A in water injection is 100-300mg/L and is reduced to 30-60mg/L after uniform corrosion rate and the pitting corrosion rate are stabilized for at least 6 hours, then the agent B is injected, and the concentration of the agent B in the water injection is controlled to be 10-40mg/L.

The invention discloses a method for improving the cycle performance and the rate capability of a lithium titanate battery. The main improvement is that additives including a stabilizer and a gas elimination agent are added into an electrolyte of the battery; the temperature is controlled to be 5 to 60 DEG C in a formation process of the battery; 3-6 sections of ladder currents from low to high are adopted for formation charge; the current interval is 0.02 to 1C; the charging time of each stage is 1 to 4 hours; and the upper limit voltage is 1.9 to 3.2V. By the method, the problem of battery swelling is solved effectively by adopting a complete and reasonable formation process and by using the electrolyte additives; the corrosion of substrates of an anode and a cathode is restrained; and therefore, the cycle performance and the rate capability of the lithium titanate battery are improved, and the requirements of a power lithium battery are met.

Cold water alkalescent water-quality treatment and treating system for dual-water internal cooling generator are disclosed. By-pass water treating system is installed on cold water main circulation circuit in dual-water internal cooling generator, hardness, copper, iron, corrosive product and granular purity are trapped in by-pass system utilizing cationic exchanger, cold water conductivity is controlled by EDI unit to improve pH value and regulate alkalescence. It has better internal cold water treating ability and can inhibit corrosion.

The invention discloses a harmful substance removal device and an air purification device adopting the harmful substance removal device. The harmful substance removal device can effectively reduce harmful gas components of treated air and can inhibit re-release of high-volatility organic matters. The harmful substance removal device (1) comprises a front-stage treatment part (2) which is arranged in a path for flowing of harmful gas ingredient-containing air needing to be treated, and a rear-stage treatment part (3) which is arranged at a downstream side of the front-stage treatment part (2), wherein the front-stage treatment part (2) comprises a porous adsorbent (12) used for adsorbing harmful gas ingredients of the treated air, a photocatalyst (13) and an ultraviolet radiator (8) used for emitting ultraviolet rays to the photocatalyst (13); and the rear-stage treatment part (3) comprises a gas-liquid contact part (16) used for making water contact with the air treated by the front-stage treatment part (2) and an electrolysis treatment part (17) comprising electrodes (21) used for carrying out electrochemical treatment on water contacting with the treated air in the gas-liquid contact part (16) .

This invention relates to a preparation method and application of excellent anticorrosion organic-inorganic hybridization paint. Chelating agent with good slow corrosion function and chelation is catalyst, it reacts with silane oxygen group compound, water, alcohol style solvent, cross blended matter to prepare organic-inorganic pant material, compact, flattening organic-inorganic hybridization paint can be got through control of reaction condition, the product's anticorrosion function can be improved by the chelating agent act with poly organosilicon times half oxygen alkyl. The paint doesn't contain chrome and other heavy metal element, the advantages are safety, non-poison, environmental protection, and good film capability, anticorrosion capability, anti-heat capability, chemical stability, mechanical stability, oxidation resistance, weathering resistance, insulativity etc. It can be used to metal surface protection and decoration.

The purpose of the present invention is to provide a corrosion-resistant steel for a hold of a coal carrying vessel and a coal/ore carrying vessel, which does not undergo corrosion after removal of a coating film therefrom under an environment in which drying and humidification are repeated and the pH value is low. Specifically provided is a corrosion-resistant steel for a hold of a coal carrying vessel or a coal/ore carrying vessel, which is characterized in that a material for the steel has a component composition containing 0.010 to 0.200 mass% of C, 0.05 to 0.50 mass% of Si, 0.10 to 2.0 mass% of Mn, 0.0250 mass% or less of P, 0.010 mass% or less of S, 0.0050 to 0.10 mass% of Al, 0.010 to 0.50 mass% of Sb and 0.0010 to 0.0080 mass% of N, with the remainder being Fe and unavoidable impurities.

The invention relates to a composite corrosion and scale inhibitor for high-chlorine-ion circulating water. The composite corrosion and scale inhibitor is a high-efficiency high-stability low-cost chlorine-ion-corrosion-resistant composed of organic phosphonic acid, phosphocarboxylic acid, polycarboxylic acid, polyphosphate, zinc salt, inorganic acid, azole and the like. The composite corrosion and scale inhibitor has favorable scale and corrosion inhibition effects on high-chlorine-ion-content medium/high-hardness water, and also has favorable corrosion inhibition effects on high-chlorine-ion-content softened water. Under favorable synergistic actions of the components, the composite corrosion and scale inhibitor provided by the invention has the advantages of high reagent compounding stability and obvious corrosion and scale inhibition effects, and can ensure the long-term safe stable operation of the circulating water system under high-chlorine-ion-content water conditions within a wider calcium ion content range.

There is provided a cosmetic or topical composition for use on the human body having a phosphate compound in an amount effective to inhibit corrosion of metallic containers containing the composition. Preferably, such a cosmetic or topical composition has sodium hydrogen phosphates and/or sodium polyphosphates in an amount about 0.05 wt % to about 1.5 wt % based on the total weight of the finished composition.

Compositions comprising graphene sheets and at least one metal having an anodic index of no greater than about −1.0 V. Disclosed is are coatings comprising compositions comprising graphene sheets and at least one metal having an anodic index of no greater than about −1.0 V. Also disclosed is an object or structure coated at least in part with a coating comprising graphene sheets and at least one metal having an anodic index of no greater than about −0.7 V and methods of coating objects and structures.

A gas detecting element that can effectively prevent fluctuations in measurement sensitivity caused by diffusion of a reagent as well as the occurrence of corrosion. The gas detecting element comprises a frame 1 with an optical density detection window 4 that is not gas-permeable formed on one side to allow optical density detection, and a gas-permeable window 6 formed on the opposing side, with a reagent absorbent material 7 being housed between the two windows and impregnated with a reagent that undergoes coloration change by reaction with a gas to be measured.

The invention provides a component which can set the thickness of cladding layer exposed to a surface of an external part to be thinner and restrains corrosion of the plating layer and a base metal for a long time in a stable state. The component (1) possesses a main body part (11) formed by metal materials; a bottom cladding layer (12) comprising an Ni cladding layer and covering the surface of the main body part (11); a multi-pore cladding layer (13) covered by the bottom cladding layer (12); and a surface cladding layer (14) formed on the surface of the multi-pore cladding layer (13) and exposed to the external part. The multi-pore cladding layer (13) is configured to be a multi-pore plasmid with a multi-pore structure (13a). The surface cladding layer (14) is configured to make the multi-pore structure (13a) dispersed on the surface of the multi-pore cladding layer (13) expose to the external part. The ionization tendency of the metal forming the surface cladding layer (14) is smaller than the ionization tendency of the metal forming the multi-pore cladding layer (13).

The invention provides magnesium lithium alloy and a preparation method thereof. The magnesium lithium alloy comprises, by mass, 3-5 wt% of Li, 2.5-7.5 wt% of Zn, 1-3 wt% of Gd, 0.2-0.6 wt% of Ca, less than 0.02 wt% of the total quantity of impurity elements, and the balance Mg. The preparation method mainly comprises the steps of smelting and heat treatment. The magnesium lithium alloy has extremely high corrosion resistance.

The invention relates to a lithium iron phosphate composite electrode with a metal oxide coating layer on a surface. The lithium iron phosphate composite electrode comprises a lithium iron phosphate pole plate and the coating layer, wherein the coating layer is formed by coating a metal oxide, a dispersing agent and a binding agent on the lithium iron phosphate pole plate, the grain size of the metal oxide is 50-500 nanometers, the thickness of the coating layer is 1-10 micrometers, and the mass of the coating layer accounts for 0.1-5% of the total mass of the composite electrode. The invention also relates to a preparation method of the lithium iron phosphate composite electrode. The preparation method comprises the following steps of S1, providing the lithium iron phosphate pole plate; S2, uniformly dispersing the metal oxide and the binding agent in a solvent by the dispersing agent to form paste; and S3, coating the paste on an outer surface of the lithium iron phosphate pole plateand performing drying to obtain the lithium iron phosphate composite electrode. The lithium iron phosphate composite electrode with the metal oxide coating layer on the surface has favorable cycle property and high safety.

The invention provides an aqueous ion battery and a preparation method thereof, and relates to the technical field of batteries. The metal modified zinc powder is prepared by adopting a coating or doping mode, AND is used as a main negative electrode material to prepare the aqueous ion battery. The microstructure of the metal modified zinc powder is designed to be needle-shaped, so that the chemical activity of the metal modified zinc powder is improved, the corrosion of the negative electrode in the standing process after the battery is charged is effectively delayed, the hydrogen evolution reaction of the battery in the charging and discharging process is inhibited, the cycle life of the battery is prolonged, and the self-discharge rate of the battery is reduced.

Provided is an inkjet printing device that can perform suitable printing even when used over long periods. This inkjet printing device (100) comprises an inkjet head (10) having a nozzle surface (14) on which nozzles are formed, and a cap (21) to which a protective fluid is supplied. The inkjet head (10) is configured from a metal portion (11), and a water repellent layer (12) that is formed on the surface of the metal portion (11) and that forms the nozzle surface (14). The nozzle surface (14) of the inkjet head (10) is maintained in a protective fluid-soaked state in the cap (21).

The invention discloses thick-film photoresist cleaning solution and a cleaning method thereof. The photoresist cleaning solution comprises dimethyl sulfoxide, potassium hydroxide, aryl alcohol, alcohol amine and a metal corrosion inhibitor. The photoresist cleaning solution can be used in a wider temperature range from 30 to 90 DEG C, is used for removing thicker photoresist on a metal, a metal alloy or a dielectric medium and other substrates in a semiconductor manufacturing process, and is particularly suitable for removing high-crosslinking degree negative photoresist with the thickness of over 100 mu m. Meanwhile, the photoresist cleaning solution has extremely weak corrosion on copper, tin, lead and other metals, does not damage chip patterns and substrates, and has good application prospect in the fields of microelectronics, such as semiconductor chip cleaning and the like.

The invention relates to the field of paints, particularly an antirust ultraviolet-curing paint which is prepared from the following raw materials in parts by weight: 55-65 parts of acrylic resin, 10-15 parts of graphene, 10-15 parts of phytate, 5-10 parts of zinc powder, 3-5 parts of photoinitiator, 7-12 parts of reactive diluent, 0.3-0.6 part of leveling agent, 0.2-0.5 part of anti-settling agent and 1-1.5 parts of defoaming agent. Multiple antirust methods are performed at the same time, thereby enhancing the antirust capacity of the antirust paint and ensuring the adhesive force, durability, cracking resistance, scrub resistance and other characteristics.

The invention provides a cutting process of wafer. The said process can cheaply and simply keep cleaning effect without corroding the welding pad containing aluminium and divide the wafer into a number of semiconductor chips. In the said cutting process, cold machining water of below 15 degree mixed with carbon dioxide is supplied to wafer W through chemistry reaction with an eye to one reason of welding pad corroding, at the same time the cutting process of wafer W is performed using cutting tool (21), in order to slow the reaction rate of digesting of aluminium and prevent the welding pad from corrode.

The present invention relates to a corrosion inhibitor comprising cellulose nanocrystals. According to another aspect, there is provided a corrosion-inhibiting agent essentially consisting of a plurality of cellulose nanocrystals. The above set out cellulose nanocrystals may be in free form, such as acid-form cellulose nanocrystals, in one embodiment and added to a carrier. The cellulose nanocrystals may be effective in inhibiting ferrous and non-ferrous metals. According to a further aspect, the invention relates to a corrosion-inhibiting composition comprising a corrosion inhibitor and the above set out corrosion-inhibiting agent in an effective combination to inhibit corrosion of metals. The composition may be effective in inhibiting ferrous metals when the cellulose nanocrystals are in either salt or free form. The composition may be effective in inhibiting corrosion of both ferrous and non-ferrous metals when the cellulose nanocrystals are in free form.

The invention provides a method for high-carbon steel casting blank dendritic crystal corrosion and measurement. The method comprises the following steps of (1) flatly grinding a test specimen according to the conventional golden phase inspection requirement; performing polishing to be with a mirror surface; (2) preparing a corrosive: dissolving picric acid and cuprous chloride into distilled water; then, adding cleanser essence; performing stirring and mixing to obtain the corrosive; (3) polishing the test specimen; then, soaking the test specimen into the corrosive; next, taking out the testspecimen. Compared with the prior art, the corrosive used by the method has the advantages that during the preparation, the consumption of used chemical reagents is low; the corrosion degree depth isproper; no damage is caused on the dendritic crystal tissues; the clear casting blank dendritic crystal tissues photos can be obtained and are used for quantitatively evaluating the dendritic crystaltissues; the method belongs to an environment-friendly and accurate test method.

A substrate processing method, including: a substrate holding step for holding a substrate that has a surface in which a metal is exposed; an inert gas substitution step for feeding an inert gas to the vicinity of the surface of the substrate and thereby substituting the atmosphere surrounding the surface of the substrate with an inert gas; an adjustment step for adjusting the pH of a rinsing liquid so as to form an inert state in which the metal does not react with the rinsing liquid, or so that the metal reacts with the rinsing liquid to form a passive state; and a rinsing liquid feeding step for feeding the pH-adjusted rinsing liquid to the surface of the substrate after the atmosphere surrounding the surface of the substrate has been substituted with the inert gas.

A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; a nonaqueous electrolyte containing an electrolyte salt; and a separator, wherein in the electrolyte salt, a molar fraction x of at least one member selected among electrolyte salts represented by the following formulae (1) and (2) occupying in the whole electrolyte salt satisfies a relationship of (0.5<x!<=1) LiPFaAc (1) LiBFbB'd (2) wherein a represents an integer of from 0 to 5; b represents an integer of from 0 to 3; each of A and B' independently represents CnF2n+1; n represents an integer of from 1 to 6; c represents an integer of 1 or more and satisfies a relationship of (a+c=6); and d represents a an integer of 1 or more and satisfies a relationship of (b+d=4).

The invention provides a corrosive negative ion removal apparatus, which is easy to use and can actually prevent corrosion, as well as a regeneration method of negative ion exchange resin. The corrosive negative ion removal apparatus (10) includes the negative ion exchange resin (12), which exchanges corrosive negative ions in water, fed to a distribution pipe (11), by anti-corrosion negative ions, thus producing negative ion exchange processsed water. The apparatus is provided with a regeneration pipeline (17) which only allows NaHCO3 water solution, diluted by tap water, to be contacted with the negative ion exchange resin (12) during regeneration of the negative ion exchange resin (12).

The invention relates to a lithium battery positive electrode material, a preparation method thereof, a lithium battery and a positive electrode piece of the lithium battery. The lithium battery positive electrode material comprises a lithium active material, and the outer surface of the lithium active material is coated with a composite conductive layer, wherein the composite conductive layer isformed by compounding a conductive polymer adhesive and conductive carbon according to a mass ratio of 1: (0.8-1.2). The composite conductive layer can be used as a protective layer, thereby improvingthe interface stability of the positive electrode material, preventing the anode material from being corroded by the electrolyte, preventing side reaction products generated with the electrolyte frombeing accumulated on the surface of the positive electrode, and avoiding the decrease of the lithium diffusion speed and transfer rate of charges between the electrodes and an electrolyte interface.Meanwhile, the composite conductive layer can form an excellent conductive network and an excellent conductive node, so the conductive performance is excellent, the transmission resistance of lithiumions in an electrode material is reduced, and the low-temperature performance of the lithium ion battery is improved.

The present invention provides a resin composition for cured film formation, the resin composition comprising a (meth)acrylate polymer (except those having a silane structure in a side chain or a carboxylic acid group in a side chain), an ion trap agent, and a solvent.