41 results about "Cloud point" patented technology

The present invention addresses the problem of providing an acidic cleaning solution for an aluminum-based metallic material, the acidic cleaning solution being capable of suppressing foaming while achieving favorable cleaning properties. One embodiment for solving the aforementioned problem is an acidic cleaning solution for an aluminum-based metallic material that comprises 0.01-25 g / L of at least one inorganic acid selected from the group consisting of sulfuric acid, nitric acid, nitrous acid, and phosphoric acid; 0.05-4.0 g / L of trivalent iron ions; and 0.1-10 g / L of a surfactant, wherein the surfactant includes a surfactant A: a polyoxyalkylene alkyl ether having a cloud point of 80°C or more, a surfactant B: a polyoxyalkylene alkyl ether having a cloud point of 50-60°C, and a surfactant C: a polyoxyalkylene alkyl ether having a cloud point of 40°C or less, and wherein the cloud point is measured in accordance with JIS K 3211: 1990.

To provide an acidic cleaning solution for aluminum-based metal materials that can achieve desirable cleaning properties while suppressing foaming. [Solution] An acidic cleaning solution for aluminum-based metal materials comprising: 0.01 g / L to 25 g / L of at least one inorganic acid selected from the group consisting of sulfuric acid, nitric acid, nitrite, and phosphoric acid; 0.05 g / L to 4.0 g / L of trivalent iron ions; and 0.1 g / L to 10 g / L of a surfactant, wherein the surfactant comprises: surfactant A: a polyoxyalkylene alkyl ether with a cloud point of 80°C or higher; surfactant B: a polyoxyalkylene alkyl ether with a cloud point of 50°C to 60°C; and surfactant C: a polyoxyalkylene alkyl ether with a cloud point of 40°C or lower.

This invention discloses a method for producing base oil. The raw material is mixed with hydrogen and then fed into a graded hydroisomerization dewaxing reactor. The mixture sequentially passes through a protective agent layer and a catalyst layer for hydroisomerization. The resulting catalytic product undergoes boiling point trimming to obtain base oil with a fraction exceeding 340°C. Along the flow path, the total acid content of the catalyst first increases and then decreases, and the molar percentage of acid in the total acid content also first increases and then decreases. The reaction temperature of the protective agent layer is lower than that of the catalyst layer, and the reaction temperature within the catalyst layer first increases and then remains constant or decreases. This invention, by using a specifically graded hydroisomerization dewaxing reactor and setting different temperature zones, produces base oil with higher yields, lower sulfur and nitrogen content, and effectively reduces the low-temperature performance (pour point and cloud point) of the base oil, resulting in a higher viscosity index and improved base oil quality.

The present disclosure provides nonionic surfactants having the formula I:R-[A] x -[B] y A nonionic block copolymer structure of Formula I, wherein R is a C8-C30 alkyl, x is 8-20, y is 2-20, and [A] x The block is formed from propylene oxide, [B] y The blocks relate to nonionic surfactants formed from ethylene oxide and having a cloud point greater than 15°C.

The present technology relates to biofuels, and more particularly, to biomass-based diesel from olefin oligomers. Diesel fuels with cetane number of 49 or greater are prepared by blending hydrocarbons produced by olefin oligomerization with renewable diesel, resulting in a blended fuel that has a lower cloud point than the cloud point of the renewable diesel. A different aspect relates to an integrated process for lipid HDO and olefin oligomerization wherein the propane coproduct of lipid HDO is subjected to dehydrogenation to produce a vapor stream having propylene and hydrogen. The propylene is subsequently oligomerized to iso-olefins and the iso-olefins are combined with the lipid feed for hydrogenation in the HDO reactor.

This detergent for an automatic washing machine contains: (a) a polyoxyalkylene-based non-ionic surfactant having a cloud point of 30-50ºC and an HLB value of 10-16; and (b) a polycarboxylic acid and / or a salt thereof. The detergent for an automatic washing machine further contains a chelating agent. The detergent for an automatic washing machine further contains an alkaline agent. The detergent for an automatic washing machine further contains an anti-foaming agent. The detergent for an automatic washing machine is used for cleaning soilage that includes at least one type selected from the group consisting of proteins, pigments, silicone-based water-repelling agents and grease.

The objective of the present invention is to provide a liquid fragrance and cleaning agent composition for flush toilets that does not gel and is less prone to viscosity changes even when exposed to temperature changes or the addition of water. [Solution] (A) Having an alkyl group with 11 to 15 carbon atoms, the cloud point in a 1% by weight aqueous solution is 80 A specific polyoxyethylene alkyl ether type nonionic surfactant that is above ℃, and (B) A liquid fragrance and cleaning agent composition for flush toilets, containing fragrance components and having a viscosity of 60-800 mPa·s at 25°C, may possess the characteristic of being resistant to gelation and viscosity changes even with temperature changes or the addition of water.

This invention discloses an defoamer, its preparation method, and its application. By weight, it comprises the following components: 100-110 parts silicone paste; 5-8 parts polyether-modified silicone oil; 10-20 parts surfactant; 2-4 parts dispersing agent; and 200-250 parts distilled water. Based on the weight of the silicone paste, the silicone paste is prepared from raw materials comprising the following components: 100 parts organosiloxane; 6-8 parts active particles; and 1-1.5 parts silane coupling agent. The anionic surfactant of this invention helps to improve the defoaming speed of the defoamer, while simultaneously increasing the cloud point of the nonionic surfactant and improving its high-temperature resistance to prevent demulsification and failure. The nonionic surfactant assists in the fusion of the components in the defoamer, making it less prone to stratification and improving the defoamer's performance. Specifically, this invention involves adding the defoamer to the extraction and rinsing stages of black liquor during the pulping process in paper mills to achieve defoaming treatment of the black liquor.

An aqueous adhesive composition for textile printing according to the present disclosure contains a (meth)acrylic resin having a glass transition temperature of −30° C. or more and −5° C. or less, an anionic surfactant containing an ammonium salt, and a nonionic surfactant having a cloud point of 100° C. or more. An amount of the nonionic surfactant is preferably 0.3 parts by mass or more and 10.0 parts by mass or less based on 100 parts by mass of the (meth)acrylic resin. The anionic surfactant preferably contains an ammonium alkyl sulfate. The ammonium alkyl sulfate preferably has 12 or more carbon atoms in a molecule thereof.

The invention discloses an environment-friendly smokeless plating assistant and a hot-dip galvanizing method. The plating assistant comprises the following components according to the concentration: 100-300 g / L of zinc chloride, 1-5 g / L of polyether modified siloxane, 30-100 g / L of magnesium chloride, 5-25 g / L of sodium chloride, 1-15 g / L of stannous chloride, 5-15 g / L of sodium silicate and the balance of water. Wherein the cloud point of the polyether modified siloxane is higher than 70 DEG C. By the adoption of the scheme, basically smokeless environment-friendly plating assisting can be achieved, the polyether modified siloxane clean activation mechanism is combined with stannous chloride activation and sodium silicate corrosion inhibition, and through the synergistic effect of the magnesium chloride-zinc chloride low-melting-point eutectic salt film, the excellent uniformity, brightness, adhesive force and corrosion resistance of a plating layer are ensured, the process adaptability is high, and the service life of the plating layer is prolonged. And the comprehensive cost can also be controlled.

The present invention concerns a triacetin-based bioadditive composition for mineral diesel fuel, diesel–biodiesel blends, and pure biodiesel or B100. The bioadditive composition comprises triacetin as the sole bioadditive component in the range of 5–10% v / v by volume of the fuel. Triacetin is added directly to the fuel at ambient temperature and mixed to obtain a homogeneous fuel–bioadditive composition without the need for catalysts, additional chemical reactions, heating at elevated temperatures, or further refining processes. The resulting composition has a kinematic viscosity that remains within the specification range of each fuel and a sediment content of less than 0.01% m / m after storage for up to 30 days at 15–30°C.The effect of triacetin addition on density, acid number, oxidative stability, cetane number or cetane index, flash point, pour point, and cloud point depends on the type of fuel and the triacetin concentration used. The uniqueness of the present invention lies in the use of triacetin as a single bioadditive component in concentrations tested to produce a homogeneous composition, maintain flow characteristics within the specification range, and limit sediment formation during storage.

The present invention relates to a hydrocarbon compound mixture that is transparent in a layer of 40 mm thick at 20°C and has a cloud point of 15°C or less according to a relevant standard test method for measuring cloud point, obtained by a method of converting plastic waste into a liquid hydrocarbon compound mixture. The present invention further relates to a method of converting plastic waste into such a liquid hydrocarbon compound mixture and to the use of said hydrocarbon compound mixture as a feedstock for a crude oil refining unit or a steam cracker in an oil refinery.

The invention discloses a dishwasher drier composition, and relates to the technical field of daily chemical products. The dishwasher drier composition comprises the following components in percentage by weight: 10-30% of a surfactant and 0-5% of an auxiliary agent, the surface active agent comprises a non-ionic surface active agent A and a non-ionic surface active agent B; the cloud point of the nonionic surfactant A is higher than 55 DEG C; the cloud point of the nonionic surfactant B is lower than 25 DEG C, and the nonionic surfactant B accounts for more than 25% of the weight of the surfactant; the cloud point of the dishwasher drier composition is greater than 40 DEG C. The dishwasher drier composition provided by the invention has the advantages of good drying effect and low foam.

A fuel composition comprising a base fuel and an additive mixture, wherein the base fuel comprises a renewable fuel component, and wherein the additive mixture comprises: (i) a first additive comprising a long-chain carboxylic acid polyamine; and (ii) a second additive comprising an ionic or nonionic oil-soluble polar organic nitrogen-containing compound having a single nitrogen atom per molecule; wherein the weight ratio of the first additive to the second additive is in the range of 6:1 to 2:1. The additive mixture is capable of improving the low-temperature flow properties (cloud point and CFPP) of the renewable fuel component.

The present application relates to the technical fields of drilling fluid lubricant, in particular to an aged oil water-based drilling fluid lubricant and a preparation method thereof. The aged oil water-based drilling fluid lubricant is prepared by mixing 2-5 parts of aged oil, 1-3 parts of polyhydroxy alcohol, 1-2 parts of alkylphenol polyoxyethylene ether, 0.1-0.2 parts of sodium dodecyl benzene sulfonate and 0.05-0.1 parts of sodium carboxymethyl cellulose. The present application uses aged oil to produce water-based drilling fluid lubricant, which can avoid the problems of aged oil demulsification, dehydration, mud and sand removal, realize the resource utilization of aged oil, and reduce the generation amount of hazardous waste; the use of polyhydroxy alcohol and its cloud point characteristics realizes the wrapping and deblocking of aged oil, can control the deblocking conditions, and realizes the fixed-point lubrication of the selected well wall rock. The lubricity of aged oil can be fully utilized, the utilization rate of aged oil is improved, and the lubrication effect is improved.

The present application relates to the technical field of industrial gas purification and sulfur resource recovery, and discloses a sulfur recovery method based on organic alkali catalytic hydrolysis and spiral pressure filtration, which comprises the following steps: feeding raw gas containing COS and / or CS2 and SO2 into an absorption reaction liquid containing organic alkali, aromatic hydrocarbon solvent and non-ionic surfactant, and reacting at 120-150 DEG C to generate liquid sulfur; cooling the reaction liquid to below the sulfur freezing point to obtain a sulfur-containing slurry; performing solid-liquid separation by a spiral pressure filter to obtain sulfur cake and filtrate; heating the filtrate to above the cloud point temperature and standing to separate into layers, and recycling the upper layer regeneration liquid. Through the multifunctional synergistic effect of the non-ionic surfactant in dispersing liquid sulfur in the reaction section, regulating the particle morphology in the crystallization section and enriching impurities in the regeneration section, combined with the spiral pressure filtration mechanical separation and cloud point regeneration technology, the present application realizes efficient removal of various sulfides and recovery of sulfur resources, effectively solves the problem of sulfur plugging, and guarantees long-period stable operation of the system.

The invention relates to the technical field of defoaming agents, in particular to a hydrophobic epoxy modified polyether emulsion defoaming agent for papermaking and a preparation method. The invention discloses a hydrophobic epoxy modified polyether emulsion defoaming agent for papermaking. The defoaming agent is prepared from the following raw materials in parts by weight: 14-30 parts of hydrophobic epoxy modified fatty alcohol polyether, 3-6 parts of a surfactant, 0.2-2 parts of a thickening agent and 50-80 parts of water, the hydrophobic epoxy modified polyether emulsion prepared by the invention is an oil-in-water emulsion, so that the hydrophobic epoxy modified polyether emulsion can be quickly and fully dispersed in water and has a faster defoaming effect; the hydrophobic epoxy modified fatty alcohol polyether prepared by the invention is an emulsion, has no cloud point, is wider in use temperature range, and has better applicability.

This application describes a process for making hydrocarbons from an oxygenate-containing hydrocarbon feedstock having high nitrogen impurities, such as animal fats. The process includes hydroprocessing of the oxygenate-containing feedstock in a first hydroprocessing bed disposed downstream of a finishing bed. After the first hydroprocessing bed, the gas phase is removed and the liquid hydroprocessing phase is fed to the finishing bed, disposed upstream of the first hydroprocessing bed, along with fresh hydrogen, which further reduces any nitrogen impurities contained in the finished hydrocarbon product. This particular process arrangement effectively removes nitrogen impurities from the resulting hydrocarbon product, resulting in an improved cloud point after isomerization, and at the same time this particular arrangement enables the efficient use of fresh hydrogen for finishing, thereby providing a finished hydrocarbon product rich in dissolved hydrogen, where a portion of the product can be used as a hydrocarbon diluent in downstream hydroprocessing beds, and / or can be withdrawn between the finishing bed and the hydroprocessing bed and isomerized in an isomerization reactor.

The present invention provides a surface treatment agent capable of forming a good coating film that can maintain hydrophilicity, corrosion resistance, and frost resistance over a long period of time. Provided is a surface treatment agent which contains a water-soluble inorganic compound (A), an organoalkoxysilane (B), and one or more surfactants (C) that are selected from among an anionic surfactant which has a weight average molecular weight of 3,000 or less and a nonionic surfactant which has a weight average molecular weight of 3,000 or less and of which a 10 mass% aqueous solution has a cloud point of 20°C or more, wherein if Ma, Mb, and Mc are the respective masses of the components (A), (B), and (C), Mc / (Ma + Mb) is 0.001 to 0.3.

Methods include adjusting the cloud point of an alkoxylated nonionic surfactant containing residual alkaline catalyst, the method including containing: neutralizing the alkoxylated nonionic surfactant creating a mixture with an organic acid having 5 to 20 carbon atoms and selected from one or more of an aromatic acid, organic sulfuric acid, organic phosphoric acid, or branched fatty acid; wherein the organic acid is added at a concentration sufficient to place the mixture at a pH in the range of 5.0 to 8.0. Surfactant compositions may contain an alkoxylated nonionic surfactant with a general structural formula R- (PO) x- (EO) y- (PO) z-OH, wherein R is a C8 to C22 alkyl group, and x and y are, independently, from 1 to 20, and z is 0 to 20; and an organic acid having 5 to 20 carbon atoms and selected from one or more of an aromatic acid, organic sulfuric acid, organic phosphoric acid, or branched fatty acid.

This application discloses a water-in-oil type dual-cloud-point liquid crystal cleaning agent, comprising the following raw materials in parts by weight: 50-80 parts of oil phase, 5-20 parts of surfactant, 5-10 parts of co-surfactant, and 5-30 parts of aqueous phase; wherein, the oil phase is selected from olefins and isopropyl myristate, and the olefins have 9-14 carbon atoms; the surfactants are nonionic surfactants and gemini surfactants, and the weight ratio of the nonionic surfactants to the gemini surfactants is (0.5-1.2):1; the nonionic surfactants are selected from secondary alcohol polyoxyethylene ethers and alkynyl alcohol polyoxyethylene ethers; the gemini surfactants are rosin-based anionic surfactants and lauryl alcohol polyoxyethylene ether (3) carboxylate symmetric succinate diester surfactants. The cleaning agent prepared by this application has a fast cleaning speed, excellent cleaning effect, and is biodegradable, environmentally friendly, and pollution-free.

The invention provides lubricant base oil and a production method thereof. The production method comprises the following steps: hydrofining raw oil, and fractionating to obtain a light component, a middle fraction and tower bottom wax; carrying out contact reaction on the middle fraction and a first isomerization catalyst, and carrying out contact reaction on tower bottom wax and a second isomerization catalyst; mixing the reaction products of the middle fraction and the tower bottom wax, carrying out refining reaction, and then carrying out fractionation cutting to obtain the lubricant base oil, the first isomerization catalyst and the second isomerization catalyst both comprise carrier particles and metal clusters containing bound positive and negative ion pairs, and the metal clusters are loaded on the carrier particles; the distillation range of the light component is 170-300 DEG C, the distillation range of the middle fraction is 300-500 DEG C, and the distillation range of the tower bottom wax is greater than 500 DEG C; the distillation range of the lubricant base oil is greater than 490 DEG C. The lubricant base oil provided by the invention has the characteristics of high yield, low cloud point, low condensation point and high viscosity index.

The utility model discloses a multifunctional integrated structure for oil detection, and belongs to the technical field of oil detection, the multifunctional integrated structure comprises a box body, a first cavity and a second cavity which are arranged in the box body, and a density detection module and a cloud point detection module which are respectively arranged in the first cavity and the second cavity; the multifunctional integrated structure further comprises a connecting structure which penetrates through the first cavity and the second cavity, is connected with an oil outlet pipe of the density detection module and an oil inlet pipe of the cloud point detection module and is used for guiding oil in the density detection module into the cloud point detection module. According to the multifunctional integrated structure for oil detection, the density detection module and the cloud point detection module are directly communicated by arranging the connecting structure, so that oil subjected to density detection can directly flow into the cloud point detection module, independent repeated sampling for detection is not needed, the detection process is simplified, and waste of oil samples is reduced.

The invention provides a polyether surfactant and a production method thereof. The polyether type surfactant comprises a component A and a component B. The chemical structural formula of the component A is H [OCH2CH2] x1-[OCH (CH3) CH2] y1-[OCH2CH2OCH2CH2O]-[CH2CH2 (CH3) O] y2-[CH2CH2O] X2H, x1 + x2 is larger than or equal to 4 and smaller than or equal to 34, y1 + y2 is larger than or equal to 29 and smaller than or equal to 31; the molar content of the component A accounts for 88 mol%-95 mol%; the chemical structural formula of the component B is H [OCH2CH2] m1-[OCH (CH3) CH2-O-CH2CH (CH3) O] n-[CH2CH2O] m2H, m1 + m2 is more than or equal to 4 and less than or equal to 34, and n is more than or equal to 29 and less than or equal to 31. The polyether surfactant is endowed with low foam performance and low cloud point.

This invention provides a method for producing lubricating oil base oil from heavy feedstock and the resulting lubricating oil base oil. The method includes: cutting the heavy feedstock to obtain a light component, a middle fraction, and a bottom wax; wherein the boiling point ranges of the light component, the middle fraction, and the bottom wax are 170-300℃, 300-500℃, and >500℃, respectively; subjecting the bottom wax to a first isomerization reaction under the catalysis of a first isomerization catalyst to obtain a first isomerization product; subjecting the first isomerization product and the middle fraction to a second isomerization reaction under the catalysis of a second isomerization catalyst to obtain a second isomerization product; subjecting the second isomerization product to hydrorefining; and then fractionating the obtained refined product to obtain the lubricating oil base oil. The lubricating oil base oil produced by this method has high yield, low pour point, low cloud point, and high viscosity index, making it a high-quality lubricating oil base oil.

The invention relates to the technical field of petroleum drilling, in particular to a plugging agent, a preparation method and application thereof and a water-based drilling fluid. The plugging agent comprises an inorganic core and a coating layer coating the inorganic core, wherein the coating layer contains a polymer containing a polydopamine structural unit and a grafted chain segment enabling the blocking agent to have a cloud point effect. When the plugging agent is used, the rheological property of the drilling fluid is not influenced, a tackifying effect is not shown in a drilling fluid system, chemical bond coupling of an elastic organic layer and rigid nanoparticle plugging can be achieved, and the effective anti-collapse plugging effect is achieved.

A system, device, and method for detecting a formation of nanoparticles in a fluid, comprise a temperature controller that provides a temperature of a source of fluid during a temperature ramp cool down operation; a measurement system that detects a particle formation in the source of fluid at an wax particle formation temperature; and an apparatus that detects a cloud point after the particle formation detection by the measurement system and at a temperature less than the wax particle formation temperature, wherein the wax particle formation temperature provides an early warning to users regarding the source of fluid before the fluid becomes visibly cloudy.

To provide a surface treatment agent capable of forming a good film capable of maintaining hydrophilicity, corrosion resistance and frosting resistance over a long period of time.SOLUTION: A surface treatment agent comprising a water-soluble inorganic compound (A), an organoalkoxysilane (B), and one or more (C) selected from an anionic surfactant having a weight average molecular weight of 3000 or less and a nonionic surfactant having a weight average molecular weight of 3000 or less and a cloud point of a 10% by mass aqueous solution of 20 °C or higher, wherein Mc / (Ma + Mb) = 0.001 to 0.3, where Ma, Mb, and Mc are the respective masses of (A), (B), and (C).SELECTED DRAWING: None

This invention provides an engine cleaner containing a surfactant and water. The surfactant is sodium lauryl sulfate, cetyl polyoxyethylene ether, and nonylphenol polyoxyethylene ether. Based on 100 parts by weight of the total cleaner, the sodium lauryl sulfate comprises 3.0-50.0 parts by weight, the cetyl polyoxyethylene ether comprises 3.0-50.0 parts by weight, the nonylphenol polyoxyethylene ether comprises 3.0-50.0 parts by weight, and the total mass of the surfactants comprises 10.0-80.0 parts by weight. This invention also provides a method for preparing the engine cleaner. The engine cleaner of this invention has a high cloud point, a short penetration time on the dirt surface, requires less water for thorough cleaning, does not produce a large amount of waste liquid, and does not pollute the ground.

The present application relates to the technical field of metal heat treatment, and discloses a wind power inner gear ring induction quenching method, which comprises the following steps: preparing an epoxyethane and epoxypropane random copolymer aqueous solution as a main quenching liquid, and preparing a sodium xylene sulfonate aqueous solution as an auxiliary liquid; quenching along the axial direction of the workpiece from top to bottom, spraying only the main quenching liquid in the initial interval, and then injecting the auxiliary liquid into the main quenching liquid in an incremental manner for mixed spraying. The mixed waste liquid is collected and kept at a set separation temperature for stratification, and the crude polyether-rich phase and the auxiliary agent-containing water phase mother liquor are collected respectively; the crude polyether-rich phase is mixed with heated deionized water and subjected to constant-temperature centrifugal separation, and the pure polyether-rich phase is cooled and reused. The auxiliary agent is injected in an incremental manner to raise the dynamic cloud point, the axial heat accumulation lag is compensated, the workpiece hardness range and the deformation amount are reduced, the polyether and the auxiliary agent salt are deeply separated through high-temperature stratification and isothermal centrifugal washing, and the long-term stability of the rheological and thermodynamic parameters of the closed-loop circulation system is maintained.