58 results about "Cloud point" patented technology

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.

The present invention relates to a processing liquid containing an effective ingredient and water, wherein the effective ingredient contains the following component (A), the following component (B), and the following component (C), • component (A): one or more compounds selected from a specific acetylenic diol and an alkylene oxide adduct thereof, • component (B): a compound containing a copolymerization site of ethylene oxide and another alkylene oxide, and not having a carbon-carbon triple bond, • component (C): a compound containing a copolymerization site of ethylene oxide and another alkylene oxide, not having a carbon-carbon triple bond, and having a higher cloud point than the component (B) at 1 mass% aqueous solution, the content of the component (A) and the total content of the component (B) and the component (C) are in a specific range based on the total amount of the effective ingredient, and the content ratio (A) / (C) of the component (A) and the component (C) and the content ratio (B) / (C) of the component (B) and the component (C) are in a specific range in terms of mass ratio.

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.

The invention relates to the technical field of preparation of acidizing corrosion inhibitors, and discloses a preparation system and method of an acidizing corrosion inhibitor, and the system comprises a raw material treatment module used for pretreating, metering and mixing a plurality of organic amine and aldehyde raw materials; the reaction synthesis module performs condensation reaction at preset temperature and pressure, and the reaction temperature is kept constant through the heat-conducting oil circulation system; the product separation and purification module comprises a centrifugal separator and a membrane filtration device and is used for realizing preliminary separation, washing and purification of a product; the performance detection module is used for detecting the corrosion inhibition rate, the iron ion concentration, the dynamic viscosity, the cloud point and the adsorption membrane potential on line; the central control module judges the product performance according to the detection result, and performs feedback regulation on the raw material ratio, the reaction temperature, the reaction duration or the purification pressure when the product does not reach the standard, so that the production process optimization and the product performance stability are realized, and the intelligent regulation and control and the performance stability in the production process of the acidizing corrosion inhibitor are effectively realized.

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.

The application discloses a rust-proof enhancer for PAG quenching liquid, and raw materials of the rust-proof enhancer include the following components in parts by weight: 40-45 parts of organic-inorganic rust-proof additive, 35-40 parts of pH regulator, 5-10 parts of non-ferrous metal rust-proof agent and 5-10 parts of antibacterial agent; the organic-inorganic rust-proof additive is a mixture of dicarboxylic acid, tricarboxylic acid, phytic acid, isomeric decanoic acid, fatty acid amide or fatty acid amine salt and sodium tungstate; the components synergistically generate a stable rust-proof film on the surface of metal, the rust-proof film has strong adhesion and can be firmly attached to the surface of metal, is less affected by the polarity of PAG, can effectively enhance the rust-proof performance of steel workpieces after quenching, and has no adverse effect on the properties such as the cloud point, viscosity, foam and cooling characteristics of the quenching liquid.

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.

A process for preparing hydrocarbons from an oxygenated hydrocarbon feedstock, such as animal fat, having a high nitrogen impurity is described. The process involves hydrotreatment of the oxygenated feedstock in a first hydrotreating reactor and a further hydrotreatment in a second hydrotreating reactor, where between the two reactors, the gaseous phase is removed. The specific process setup effectively removes nitrogen impurities from the resultant hydrocarbon product causing an improved cloud point after isomerisation.

A process for preparing hydrocarbons from an oxygenated hydrocarbon feedstock, such as animal fat, having a high nitrogen impurity is described. The process involves hydrotreatment of the oxygenated feedstock in a first hydrotreating reactor and a further hydrotreatment in a second hydrotreating reactor, where between the two reactors, the gaseous phase is removed. The specific process setup effectively removes nitrogen impurities from the resultant hydrocarbon product causing an improved cloud point after isomerisation.

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.

According to a first aspect of the present disclosure, there is provided a liquid composition, preferably a liquid rinse aid composition, more preferably a liquid automatic dishwashing rinse aid composition, comprising a non-ionic surfactant mixture. The non-ionic surfactant mixture comprises (a) an ethoxylated-propoxylated C10 to C18 alcohol having 4 - 8 ethoxy groups and 2 - 5 propoxy groups; and (b) an ethoxylated C10 to C15 alcohol having 4 - 10 ethoxy groups. The non-ionic surfactant mixture has a cloud point of 50°C or below, as measured in 1% water at 25°C. According to a second aspect of the present disclosure, there is provided the use of a liquid composition, preferably a liquid rinse aid composition, more preferably a liquid automatic dishwashing rinse aid composition, during the rinse cycle for reducing spotting or / and improving drying of hard surface. The liquid composition may be the liquid rinse aid composition according to the first aspect of the present disclosure.

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 discloses a dry-process humidity control structure for hollow membrane spinning and its application, comprising a through-cavity and several groups of capacitive induction atomizers disposed therein. The present invention controls the humidity of the dry-process cavity between the membrane filaments from the spinneret to the coagulation bath at 100% RH, and controls the ratio of the casting solution so that its phase separation state is close to the cloud point. Liquid-liquid separation occurs immediately after the casting solution contacts the moisture in the dry-process cavity, thereby increasing the mass transfer rate of the solvent in the casting solution to diffuse outward, forming a larger number of macroporous structures on the membrane surface, and improving the looseness of the cross-sectional structure, thereby producing hollow membrane filaments with high pore size and high flux. The process is simple and effectively solves the complex problem of adjusting the formulation and coagulation bath required in the prior art. The capacitive induction atomizer also improves the defect of the steam generator caused by the insufficient exchange of too fine atomized mist.

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 disclosure relates to a process for production of a dewaxed hydrocarbon fraction from a hydrocarbon feedstock having a cloud point above -5°C wherein the dewaxed hydrocarbon has a cloud point at least 5°C below the hydrocarbon feedstock, comprising the steps of providing a process feed comprising an amount of an ammonia source, hydrogen and an amount of said hydrocarbon feedstock, at a temperature above 200°C, directing said process feed to contact a material catalytically active in isomerization under isomerization conditions to provide a dewaxed hydrocarbon fraction, wherein said ammonia source provides an amount of ammonia corresponding to a concentration of NH3 in the presence of said material catalytically active in hydrodeoxygenation being at least (50) ppbwt and less than 1000 ppmwt. This has the associated benefit that the ammonia source releases ammonia by thermal reaction, such that the presence of ammonia may limit the extent of hydrocracking the isomerization process, as the addition of ammonia source is sufficient for affecting the catalyst, but not sufficient for full deactivation of the zeolite in the catalytically active material.

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 discloses a method for producing lubricant base oil. The method comprises the following steps: (a) paraffin-based vacuum wax oil and hydrogen enter a hydrotreating reaction zone, hydrotreated oil obtained after reaction is subjected to gas stripping and enters a hydroisomerization reaction zone, hydroisomerized oil obtained after reaction enters a finishing reaction zone for reaction, and a base oil mixed product is obtained; and (b) fractionating the base oil mixed product obtained in the step (a) to obtain the lubricating oil base oil product. The method combines proper process steps and the specific isodewaxing catalyst, has strong raw material adaptability, can improve the yield of heavy lubricating oil products, can obtain lubricating oil products with high viscosity index, low pour point and cloud point, and can produce lubricating oil base oil products meeting APII and API II requirements.

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.