78 results about "Cloud point" patented technology

According to the liquid defoaming agent for papermaking white water and the preparation method of the liquid defoaming agent, through combined use of the high-carbon alcohol emulsion and the polyether emulsion, the problem that the foam inhibition capacity of the high-carbon alcohol emulsion is insufficient can be solved, meanwhile, the alcohol ether solution is adopted as a solubilizer to be used for improving the cloud point of polyether in a system, the system is prevented from being changed due to the temperature, and the foam inhibition capacity of the high-carbon alcohol emulsion is improved. The precipitation of polyether leads to system imbalance; the defoaming agent obtained by compounding the high-carbon alcohol emulsion and the polyether solution in proportion can realize more excellent defoaming and foam inhibition performance in papermaking white water, and the storage stability is effectively enhanced.

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 invention discloses an environment-friendly energy-saving fabric low-temperature detergent and a preparation method thereof, and belongs to the technical field of daily chemical products. Aiming at the technical bottlenecks that the decontamination capability of the traditional detergent is suddenly reduced under the condition of low temperature (10-25 DEG C) and the hard water adaptability is poor, and the pain points that the traditional detergent depends on high energy consumption and is low in decontamination efficiency, the invention provides the detergent. The method has the advantages that 1) a compound system of an anionic surfactant with a low Krafft point and a nonionic surfactant with a low cloud point or no cloud point higher than room temperature is optimized, and the stain permeation and emulsification efficiency in a low-temperature water environment is remarkably enhanced; 2) a chelating agent with good biodegradability and other assistants are added to ensure low-temperature washing stability, the decontamination index of the low-temperature fabric detergent at the water temperature of 20 DEG C is increased by 40% or above compared with that of a conventional product, the formula is environment-friendly, and a solution with energy-saving benefits and environment-friendly performance is provided for low-temperature textile cleaning.

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.

To provide a method for manufacturing a laminated formed article by lamination molding such as 3D printings, in which the occurrence of dripping and crushing of a water-setting inorganic composition during lamination is reduced to a level sufficient for practical use.SOLUTION: A method for manufacturing a laminated formed article includes laminating a laminate formed article composition containing a water-setting inorganic composition and a thermosensitive gelling agent, and heating the composition during and / or after a lamination, thereby making the laminate formed article composition non-fluid. The thermosensitive gelling agent contains an aqueous medium, a polymer dispersed in the aqueous medium, and a nonionic surfactant having a cloud point of 30°C or higher and a HLB value of 10 to 18, and the thermosensitive gelling agent has a value of a1 / a0 of 15 or more, where a0 is the penetration resistance at 17±3°C immediately after degassing and a1 is the penetration resistance at 17±3°C after 30 seconds of microwave heating at 600 W after degassing.SELECTED DRAWING: None

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 cleaning composition comprises a surfactant having a cloud point of 60° C. or greater and a glycol ether having a hydrophilic-lipophilic balance (HLB) of 6 to 10. If the surfactant has a cloud point greater than 90° C., the glycol ether has an HLB of less than 7.5, or if the surfactant has a cloud point between 60° C. and 75° C., the glycol ether has an HLB of greater than 8.5, or if the surfactant has a cloud point between 75° C. and 90° C., the glycol ether has an HLB of 7 to 9.

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 present invention relates to the technical field of lubricant base oils, and specifically relates to an API-Class III lubricating oil and a preparation method thereof. An API-Class III base oil is characterized in that the base oil is obtained by sequentially passing a feedstock oil through a hydroisomerization fixed-bed reactor and a hydrorefining fixed-bed reactor, and then separating through a separation unit. A feedstock oil, the components of which include: 50-70 wt% of hydrocracked tail oil of Fischer-Tropsch wax, 20-40 wt% of petroleum-based hydrocracked tail oil, 5-15 wt% of Fischer-Tropsch wax. The feedstock oil undergoes hydroisomerization and hydrorefining reactions, and the obtained API-Class III base oil has a high viscosity index, a low pour point, a low cloud point, high oxidation stability and excellent low-temperature performance, and can be used as a high-quality lubricant base oil. The specific indicators of the base oil are as follows: the kinematic viscosity at 100 °C is 2.0-9.0 mm 2 / s, the viscosity index > 125, wherein, for the base oil with a kinematic viscosity above 4.0 mm 2 / s, the viscosity index ≥ 130, the pour point ≤ -10 °C, the cloud point ≤ 0 °C, the oxidation stability RBOT > 320 min, and the low-temperature fluidity CCS (-30 °C) < 4200 mPa·s.

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.

Drilling fluids for drilling a wellbore. An example drilling fluid includes an aqueous base fluid, a first fluid loss control additive that comprises a cross-linked polymer comprising N-vinylpyrrolidone as a monomer, and a second fluid loss control additive that comprises a cloud point glycol.

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.

The invention discloses a method for preparing glycosyl modified nonylphenol polyoxyethylene ether, and belongs to the technical field of surfactants. The preparation method of the glycosyl modified nonylphenol polyoxyethylene ether comprises the following steps: mixing glucose, nonylphenol polyoxyethylene ether and an acid catalyst to obtain a precursor, and carrying out aldolization to complete glycosyl modification. The nonylphenol polyoxyethylene ether is subjected to efficient grafting modification through glucose, on the basis that the original performance advantages of the nonylphenol polyoxyethylene ether are kept, the cloud point, alkali resistance and other working performance are further improved, the application value of the nonylphenol polyoxyethylene ether in an actual scene is expanded, and the nonylphenol polyoxyethylene ether has economical efficiency and functionality and is worthy of popularization and application. The method has important significance in promoting the progress and development of the surfactant industry.

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 which comprises a long chain carboxylic acid polyamine; and (ii) a second additive which comprises an ionic or non-ionic, 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 from 6:1 to 2:1. The additive mixture enables an improvement in the cold flow properties (cloud point and CFPP) of the renewable fuel component.

A method for producing an additive manufactured object, the method comprising layering a composition for additive manufacturing comprising a water-curable inorganic composition and a heat-sensitive gelling agent, and non-fluidizing the composition for additive manufacturing by heating at the time of layering and / or after layering, wherein the heat-sensitive gelling agent contains an aqueous medium, a polymer dispersed in the aqueous medium, and a nonionic surfactant having a cloud point of 30° C. or higher and an HLB value of 10 to 18, and the heat-sensitive gelling agent is a heat-sensitive gelling agent having a value of al / a0 of 15 or more when a penetration resistance value at 17±3° C. immediately after defoaming is defined as a0 and a penetration resistance value at 17±3° C. after microwave heating at 600 W for 30 seconds after defoaming is defined as a1.

A process and system for converting a high-pour-point organic feedstock to an upgraded product that exhibits good low-temperature properties (cloud point, pour point, and viscosity) and improved transportability. The high-efficiency process includes a continuous-flow, high-rate hydrothermal reactor system and integrated separation systems that result in low complexity, small footprint, high energy efficiency, and high yields of high-quality upgraded product. The system is specifically desirable for use in converting waxy feedstocks, such as yellow and black wax petroleum crudes and wax from the Fischer-Tropsch (FT) process, into upgraded crude that exhibits a high diesel fraction and, correspondingly, low vacuum gas oil (VGO) fraction.

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 disclosure relates to a nonionic surfactant having a nonionic block copolymer structure of Formula I: R-[A] x-[B] y, Formula I wherein R is a C8 to C30 alkyl group; x is 8 to 20; y is 2 to 20; the [A] x block is formed from propylene oxide; the [B] y block is formed from ethylene oxide; and the nonionic surfactant has a cloud point higher than 15 DEG C.

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.