13 results about "Iso butanol" patented technology

The present invention addresses the problem of improving the aftertaste of the taste of a preservative, which may be generated after a beverage obtained from a beverage base is drunk. A specific fatty acid and isobutanol are used in a specific weight ratio.

The application relates to the technical field of building thermal insulation materials, and particularly discloses a gel nano thermal insulation mortar and a preparation method thereof. The gel nano thermal insulation mortar is prepared from the following raw materials in parts by mass: vitrified microbeads 75-85 parts, hydrophobic pretreated nano silicon dioxide aerogel 90-110 parts, modified potassium silicate solution 310-330 parts, deionized water 430-470 parts, dispersant 4-6 parts, wetting agent 1.5-2 parts, composite defoaming agent 4-5 parts, hydroxyethyl cellulose 2.5-3.5 parts, quaternary ammonium salt 9-11 parts, thickening agent 2-4 parts, mildewproof and alga-resistant agent 2-4 parts, preservative 2-4 parts, bactericide 0.4-0.6 parts and isobutanol amine 0.8-1.2 parts. The gel nano thermal insulation mortar prepared by the application realizes synchronous optimization of thermal insulation performance and mechanical performance.

The present disclosure provides an equipment for production of butanol and octanol and a triple-effect distillation method, comprising two processes: butanol separation and octanol separation, both processes use same feedstocks to obtain n-butanol, iso-butanol and octanol products through different procedures, respectively, wherein butanol separation process is sequentially divided into hydrogenation, removal of light and heavy components and separation of isomeric; and octanol separation process is sequentially divided into separation of isomeric, hydrogenation and removal of light and heavy components; the removal of light and heavy components for butanol is carried out by a butanol pre-distillation column and a butanol distillation column, and the separation of isomeric for butanol is carried out by a first butanol isomer column and a second butanol isomer column; and the separation of isomeric for octanol is carried out by a first butyraldehyde isomer column and a second butyraldehyde isomer column.

The invention discloses a concealed-grid writing color-coated sheet and a preparation method thereof, and relates to the field of color-coated sheets. The concealed grid writing color-coated sheet comprises a galvanized steel sheet or a cold-rolled steel sheet, a primer layer, a concealed grid layer and a green board finish paint layer, wherein the concealed grid layer is obtained by printing concealed grid paint consisting of 14 to 18 weight percent of fluorescent pigment, 30 to 35 weight percent of polyester resin, 10 to 12.5 weight percent of amino resin, 0.1 to 0.3 weight percent of acid catalyst, 0.5 to 0.7 weight percent of defoaming agent, 0.5 to 0.7 weight percent of flatting agent, 0.5 to 0.7 weight percent of wetting dispersant and the balance of solvent; the solvent is a mixed solvent of ethyl acetate, isobutanol and butyl ether in a weight ratio of (4-5): (2-3): 3. The concealed grid writing color-coated sheet is long in service life and not prone to abrasion, the concealed grid layer can only display at a short distance, the concealed grid layer cannot be seen clearly at the distance larger than 2 meters, attractiveness is not affected, and the concealed grid writing color-coated sheet is widely applied to teaching of kindergartens and primary schools.

The invention discloses a preparation method of waterborne polyurethane, which belongs to the field of polyurethane and comprises the following steps: step 1, obtaining sodium isobutoxide; 2, methanol amine and sodium isobutoxide are subjected to a contact reaction, and a first reactant is obtained; step 3, subjecting bromoisobutane and the first reactant to a contact reaction so as to obtain a second reactant, and removing impurities so as to obtain isobutoxy etherified methanol amine; 4, polyester polyol, polyether polyol or a mixture of the polyester polyol and the polyether polyol react with isocyanate to generate a third reactant of which the chain end is an isocyanate group, and the third reactant and isobutoxy etherified methanol amine are mixed and react to obtain a polyurethane prepolymer; step 5, emulsifying the polyurethane prepolymer to obtain waterborne polyurethane; the invention also discloses the polyurethane and application thereof.

This invention belongs to the field of environmentally friendly fuel technology, specifically relating to a method for preparing a green, low-carbon, and highly efficient modified fuel for alcohol-hydrogen engines. This invention comprehensively improves fuel performance through a progressive synergistic architecture of a bio-methanol platform – an oxygen-containing combustion-promoting system – a stability barrier – and a low-energy-consumption blending path. Using bio-methanol as a base, it optimizes combustion by compounding with oxygen-containing components such as 2-MTHF and DMM / MF, achieving rapid ignition, emission reduction, and noise reduction. Phase behavior is regulated by isobutanol and polyether-modified silicon, achieving a reversible and stable phase without the need for high-HLB surfactants, preventing deposition and gas lock. A four-fold protective barrier is constructed using GMO and fluorinated silica polyethers, combined with antioxidant synergy to achieve corrosion resistance and aging resistance. The process adopts a sequential design of front-end purification – mid-stage two-phase construction – and end-stage static mixing, achieving low-energy homogenization and ensuring storage, transportation, and operational stability.

The present invention relates to a process for the reduction of reactor fouling in a high pressure polymerization reactor comprising a siloxane-bonded polymer layer adhered to at least one reactor wall, wherein the process comprises contacting the siloxane-bonded polymer layer with an alcohol in an amount of not more than 2 wt.-%, based on the total amount of the reactor feed, wherein the alcohol is in supercritical state. The alcohol may be selected from the group consisting of methanol, ethanol, n-propanol, iso-propanol, n-butanol, and iso-butanol, or a combination thereof. The siloxane-bonded polymer layer may comprise an ethylene copolymer. The above process improves heat transfer at the reactor walls by reducing or removing said siloxane-bonded polymer layer and reducing fouling phenomena. This in turn improves product output, process control, product quality and reproducibility of the obtained polymers, and decreases down-time of the reactor.

The utility model discloses a rectification device in an isobutanol production process, which comprises a rectification tank, a condenser and a reboiler, the condenser is arranged at the top of the rectification tank and is used for circularly condensing gaseous materials, the reboiler is arranged at the bottom of the rectification tank and is used for circularly gasifying liquid materials, a feeding pipe is arranged on the outer side of the rectification tank, and the feeding pipe is communicated with the reboiler. Flow guide partition plates which are vertically arranged are fixedly mounted in the rectification tank. Recondensed liquid gathers on the flow guide partition plate, the liquid level exceeds the overflow plate and flows downwards, steam at the bottom flows upwards along the air holes in the flow guide partition plate under the action of pressure, gas-liquid two-phase contact is achieved, and meanwhile due to the fact that the flow equalizing cover on the flow guide partition plate is completely immersed by stock solution, the flow equalizing cover is completely immersed by the stock solution. The stock solution at the bottom is heated by the reboiler to form steam, and the steam rises and is dispersed by the flow equalizing cover, so that more efficient contact efficiency with the stock solution is realized, and the device has the advantages of high gas-liquid double-phase contact efficiency, improvement of rectification efficiency and reduction of equipment energy consumption.

The invention relates to the technical field of building thermal insulation materials, and particularly discloses gel nano thermal insulation mortar and a preparation method thereof. The invention relates to gel nano thermal insulation mortar. Comprising the following raw materials in parts by mass: 75-85 parts of glass beads, 90-110 parts of nano silicon dioxide aerogel subjected to hydrophobic pretreatment, 310-330 parts of a modified potassium silicate solution, 430-470 parts of deionized water, 4-6 parts of a dispersing agent, 1.5-2 parts of a wetting agent, 4-5 parts of a composite defoaming agent, 2.5-3.5 parts of hydroxyethyl cellulose, 9-11 parts of quaternary ammonium salt, 2-4 parts of a thickening agent, 2-4 parts of an anti-mildew and anti-algae agent, 2-4 parts of a preservative, 0.4-0.6 part of a bactericide and 0.8-1.2 parts of isobutanol amine. According to the prepared gel nano thermal insulation mortar, the thermal insulation property and the mechanical property are synchronously optimized.

This invention relates to the field of coating technology, and in particular to waterborne epoxy polyamide coatings, their preparation methods, and applications. The waterborne epoxy polyamide coating comprises component A and component B; component A includes waterborne epoxy resin, thickener, defoamer, flash rust remover, pigments and fillers, fumed silica, regulator, and water in a specific ratio; component B includes waterborne epoxy polyamide curing agent, plasticizer, defoamer, regulator, flash rust remover, pigments and fillers, fumed silica, anti-caking agent, thickener, ammonia, isobutanol, and water in a specific ratio; the mass ratio of component A to component B is 0.5–1.5:1. This coating exhibits good corrosion resistance, hardness, extremely strong adhesion, good flexibility, film-forming properties, workability, and leveling properties, and can achieve integrated application of putty and primer.

Genetically modified microorganisms that have the ability to convert carbon substrates into chemical products such as isobutanol are disclosed. For example, genetically modified methanotrophs that are capable of generating isobutanol at high titers from a methane source are disclosed. Methods of making these genetically modified microorganisms and methods of using them are also disclosed.

The application discloses a preparation method and application of a low-temperature curing water-based amino baking paint. The baking paint raw materials comprise methanol etherified amino resin, isobutanol etherified amino resin and organic silicon modified water-based polyurethane resin. The preparation method comprises the following steps: S1, preparation of the organic silicon modified water-based polyurethane resin; S2, mixing of the organic silicon modified water-based polyurethane resin and water, addition of adhesion additives and partial neutralizing agents, and stirring to obtain a first paint; S3, mixing of amino resin, leveling agents, wetting agents and defoaming agents, and stirring to obtain a second paint; S4, mixing and stirring of the first paint and the second paint to obtain a third paint; and S5, addition of a curing agent and residual neutralizing agents into the third paint to obtain the water-based amino baking paint. The water-based amino baking paint has good adhesion, good flexibility, excellent water resistance, low curing temperature, low VOC and other excellent performances, and is suitable for application on metal parts.

This invention relates to the field of printed circuit board manufacturing technology and discloses a process for uniformly coating and curing PCB solder resist ink. The process includes mixing and dispersing isobutanol, cyclohexanone, and stearic acid-terminated dimer acid-ethylenediamine type polyamide wax micropowder; adding o-cresyl aldehyde epoxy acrylate, dipentaerythritol hexaacrylate, an initiator, and fillers; grinding to obtain the ink; printing the ink and then pre-baking it in an oven, during which the exhaust air is controlled to create alternating pressure perturbation within the oven, promoting the expulsion of internal microbubbles; subsequently, the temperature is increased to complete the second stage of constant-temperature pre-baking; after exposure, development, and cleaning, a final constant-temperature thermosetting baking is performed. This invention utilizes specific wax micropowder to construct a thixotropic network to prevent ink sagging on the board surface, and combines this with alternating pressure pre-baking technology to accelerate solvent evaporation and degassing, reducing pinhole defects within the cured coating and improving the consistency of the ink film thickness and the overall structural density of the printed circuit board.