69 results about "Iodine value" patented technology

The utility model discloses a catalytic hydrogenation reactor for treating a biomass raw material with a high acid value and a high iodine value, and belongs to the technical field of oil product hydrogenation. The catalytic hydrogenation reactor comprises a reactor pressure-bearing container, an inner cylinder, an ash discharge port, a feeding assembly, a reaction assembly and a discharging assembly, the inner cylinder is arranged in the reactor pressure-bearing container, the feeding assembly and the reaction assembly are arranged in the inner cylinder, the reaction assembly comprises a ceramic tube bundle internal part, the discharging assembly is arranged above the inner cylinder, and the discharging assembly is arranged above the inner cylinder. The ash discharge port is formed in the center of the bottom of the reactor pressure-bearing container. By arranging the ceramic tube bundle internal part in the catalytic hydrogenation reactor, on one hand, the ceramic tube bundle internal part serves as a reaction assembly and has certain acid corrosion resistance, and on the other hand, the ceramic tube bundle internal part serves as a solid catalyst carrier, selective hydrogenation of high-acid-value and high-iodine-value biomass raw materials is achieved, the iodine value is effectively reduced, and coking of the high-iodine-value biomass raw materials in the reaction process is avoided; in addition, the acid value is maintained as far as possible while the iodine value is reduced, and the solid catalyst and the catalytic hydrogenation reactor are not corroded, so that the stability of the solid catalyst and the yield of the product are improved.

The invention is applicable to the technical field of toothpaste preparation, and particularly relates to mild stain-removing and whitening toothpaste containing diatomite and coconut shell carbon and a preparation method of the mild stain-removing and whitening toothpaste. The mild stain-removing and whitening toothpaste comprises 9-30% of Changbai Mountain diatomite abrasive, 32-38% of sorbitol, 2-4% of sodium lauroyl silicate, 2-3% of polyethylene glycol 400 and 0.5-2% of coconut shell carbon. The toothpaste is prepared from the following components in percentage by weight: 0.6 to 1 percent of polyvinylpyrrolidone, 0.5 to 0.8 percent of honeysuckle flower extract, 0.5 to 0.7 percent of pseudo-ginseng extract, 0.5 to 0.8 percent of xanthan gum, 0.1 to 0.2 percent of 1, 2-hexanediol, 0.5 to 0.8 percent of essence and water. The diatomite and coconut shell carbon used in the invention are refined natural food-grade raw materials, do not contain chemical components, have low hardness, are suitable for children and sensitive people, and do not damage enamel; the selected Changbai Mountain diatomite and coconut shell carbon with the iodine value of 1500-3000 have a synergistic effect, and the Chinese herbal medicine extract is added to assist in degerming; the adsorption, whitening and deodorizing capabilities of the toothpaste are greatly improved, and the toothpaste can quickly remove stains, whiten and remove bad breath.

The present invention concerns an aqueous radiation-curable polyurethane acrylate dispersion comprising: a) a polyurethane acrylate polymer which is the reaction product of: i) from 10 wt.% to 50 wt.% of an isocyanate monomer; ii) from 5 wt.% to 20 wt.% of a polyunsaturated monomer or polyunsaturated oligomer, which has an iodine value of at least 50 g of I2 / 100g of respectively polyunsaturated monomer or polyunsaturated oligomer, and at least one hydroxyl functional group; iii) from 10 wt.% to 55 wt.% of an acrylate functional oligomer which contains at least one (meth)acrylate group and at least one isocyanate-reactive group; and iv) from 1 wt.% to 10 wt. % of a dispersing agent which contains at least one isocyanate-reactive group and at least one group having a hydrophilizing action; dispersed in b) an aqueous continuous phase; and a coating composition and kit-of-parts with a drying agent; and a coated substrate.

The present disclosure provides adsorbents and adsorbents that improve adsorption of perfluoroand polyfluoroalkyl species (PFAS). The adsorbents and adsorbents have a microstructure effective to adsorb PFAS, as shown in a combination of high volume iodine number and high volume molasses number. Methods of manufacture and methods of use are further provided.

The invention belongs to the field of propolis soft capsules, and provides a propolis soft capsule and a preparation method thereof.The propolis soft capsule is prepared from, by weight, 30%-50% of propolis extract, 40%-60% of modified egg yolk phospholipid and 5%-15% of cosolvent; wherein the modified egg yolk phospholipid is partially hydrogenated, the sn-2 site of the modified egg yolk phospholipid is substituted by branched chain fatty acid, and the iodine value of the modified egg yolk phospholipid is shown in the specification; according to the invention, specifically modified egg yolk phospholipid is used as a core carrier, and the unique molecular structure of the egg yolk phospholipid can be efficiently self-assembled in an oil phase, so that the egg yolk phospholipid has excellent wrapping and solubilizing capabilities on various active components in propolis. The propolis extract can be stably loaded into an oil phase to form a transparent nano-dispersion with small average particle size and low polydispersity index, so that high-efficiency and high-loading oil dissolution of propolis is realized, and a stable nano-dispersion system is formed.

Non-saccharide sweeteners are used in various types of beverages. However, most of non-saccharide sweeteners are accompanied by an unique, unpleasant sweetness or bitterness, or bad aftertaste, and such non-saccharide sweeteners often have problems in terms of flavor.　Provided is a processed oil and fat that satisfies all of the following requirements (A)-(C) for use in a beverage containing at least a non-saccharide sweetener.　(A) An iodine value is 125 or less. (B) A triglyceride composition is randomized. (C) In the constituent fatty acid composition, the total content of a palmitic acid and a stearic acid is 10 wt% or more.

Provided is a hydrogenated nitrile rubber which has excellent dispersibility and stability of a conductive material dispersion when used to produce an electrode for an electrochemical element, has excellent peel strength of the electrode, has an excellent effect of suppressing cracking of an active material in the electrode after a cycle test, and also has excellent output characteristics of the electrochemical element. This hydrogenated nitrile rubber contains a nitrile group-containing monomer unit, a conjugated diene monomer unit and / or an alkylene structural unit, has a weight-average molecular weight (Mw) in the range of 1,000-1,000,000, and an iodine value of 100 mg / 100 mg or less, contains a phenol-based antioxidant, and has a calcium (Ca) content of 1-2500 ppm, a ruthenium (Ru) content of 0.5-50 ppm, a palladium (Pd) content of 200 ppm or less, and a magnesium (Mg) content of 50 ppm or less. And the sodium (Na) content is 300 ppm or less.

This invention discloses a method for preparing high-performance wood wax oil, belonging to the field of coating technology. The raw materials used in this wood wax oil are soybean oleic acid, maleic anhydride, grafting catalyst, glycerol, phthalic anhydride, esterification catalyst, vanadium drier, zirconium drier, carnauba wax, and beeswax. Compared to wood wax oils based on tung oil and linseed oil, the wood wax oil of this invention uses soybean oleic acid as the main material, utilizing maleic anhydride to perform graft copolymerization at the α-position of the carbon-carbon double bond in soybean oleic acid, thereby increasing the iodine value of the resin system. Increased iodine value leads to increased crosslinking points, thus ensuring drying properties and improving the hardness, drying performance, and yellowing resistance of the wood wax oil; weather resistance is significantly improved, and drying time is accelerated; no heavy metal driers such as cobalt and manganese are added, making it environmentally friendly; the preparation process of the wood wax oil of this invention is simple and easy to operate, with low material costs.

Provided is a fraction of an interesterified fractionated fat blend that has a solid fat content (SFC) at 20 °C of about 35.0% to about 70.0%, a SFC at 30 °C of about 30.0% to about 60.0%, and a SFC at 40 °C of about 20.0% to about 45.0%; wherein the fat blend comprises an interesterification product of a pre-interesterification mixture that includes: 25-75 wt% of an edible liquid fat, and 25-75 wt% of a fully hydrogenated edible fat with an iodine value of at most 4.0 and having SFC of greater than or equal to 85.0% at 40 °C. The fraction may be a stearin fraction, an olein fraction, or any combinations thereof.

To provide a hydrogenated unsaturated dibasic acid composition exhibiting superior thermal stability, a production method thereof, and a polyester composition and a polyamide composition obtained by reaction of the hydrogenated unsaturated dibasic acid composition.SOLUTION: The present invention provides a hydrogenated unsaturated dibasic acid composition satisfying the following (A) and (B). (A) An iodine value is 55 or more. (B) In a 1H-NMR measurement, a ratio (Olefin Hα / ArHα) of an integral value (Olefin Hα) of a peak corresponding to olefin protons to an integral value (ArHα) of a peak corresponding to aromatic protons is 0.10 or more and 0.80 or less.SELECTED DRAWING: None

The application discloses a high-efficiency fluorite collecting agent and a preparation method thereof, and comprises the following raw materials in parts by weight: 20-45 parts of oleic acid with different iodine values, 5-10 parts of amide surfactant, 3-5 parts of inorganic alkali or organic alkali, and 10-25 parts of low-carbon-chain alcohol compounds; the amide surfactant is a non-ionic surfactant, and a general structure of the amide surfactant is R1-C(O)NH(CH2) n CH2-R2, wherein R1 is a carbon-hydrogen chain with 12-18 carbon atoms, n=5-6, and R2 is a functional group with hydrogen bond effect. The fluorite collecting agent can ensure high fluorite recovery rate, improve the grade of fluorite concentrate to a certain extent, reduce the amount of the collecting agent, and solve the problem of low fluorite concentration efficiency of the fatty acid fluorite collecting agent.

The invention provides a method for preparing industrial stearic acid by using an OPO distillation byproduct. The invention relates to a method for preparing industrial stearic acid by using an OPO distillation byproduct, which comprises the following steps: carrying out vacuum degassing on the OPO distillation byproduct, and filtering to obtain a byproduct liquid; performing catalytic hydrogenation reaction on the by-product liquid by using a catalyst to obtain a first material, wherein the iodine value of the first material is less than or equal to 0.5 g / 100g; wherein the mass ratio of the catalyst to the byproduct liquid is (0.01-0.05)%: 1; adding metered C18 fatty acid or C16 fatty acid according to the composition proportion of the fatty acid in the first material until the mass ratio of the C18 fatty acid to the C16 fatty acid in the obtained second material is (1-3): (1-3); and decolorizing the second material to obtain the industrial stearic acid. With the adoption of the method, the industrial stearic acid with relatively high purity can be prepared; the yield of the industrial stearic acid prepared by the method is relatively high; by the adoption of the method, resource recycling can be achieved, and meanwhile discharge of solid waste and waste liquid is reduced.

The utility model discloses a portable activated carbon iodine value detection device, which belongs to the technical field of detection instruments and comprises an iodine solution container, a smashing and stirring container is in threaded connection with the lower portion of the iodine solution container, a titration container is in threaded connection with the lower portion of the smashing and stirring container, and a handle is fixedly connected with the upper portion of the iodine solution container. The iodine solution container, the crushing and stirring container and the titration container are connected together through threads, so that the device integrates multiple functions, the detection process is simplified, the miniaturization of detection equipment is realized, the detection device has portability, detection personnel can conveniently carry out field detection, a sample does not need to be taken back to a laboratory for detection, and the detection efficiency is improved. The detection time is shortened, the iodine solution switch capable of controlling the outflow dosage of the solution and the baffle are arranged in the iodine solution container, accurate control over the adding amount of the iodine solution is achieved, compared with traditional adding through a dropper, operation is more convenient and faster, and meanwhile waste of the iodine solution is avoided.

The object of the invention is to provide a treatment agent for synthetic fibers that can achieve both a reduction in the amount of thermally degraded material and suppression of tension fluctuations. A method for producing a synthetic fiber treatment agent that contains a nonionic surfactant (B) having a polyoxyalkylene skeleton without ester bonds and an ester component (A), and satisfies specific conditions 1 and 2, wherein the ester component (A) comprises at least one selected from an ester compound represented by general formula (1) and a compound having a structure in which polyoxyalkylene glycol and a fatty acid are ester-bonded, the nonionic surfactant (B) comprises a nonionic surfactant (B1) having an alkyl group having 12 to 15 carbon atoms, and the proportion of the nonionic surfactant (B) in the nonvolatile content of the treatment agent, the strong acid value, saponification value, iodine value, content of Zr and Ti elements, content of K and Na elements, and content of Si element are within specific ranges.

Provided is a water permeability-imparting agent which imparts excellent stability of water permeability over time to fibers and has excellent handleability.　Provided is a water permeability-imparting agent includes a nonionic surfactant (N) and at least one selected from an anionic surfactant (S) having elemental S and an anionic surfactant (P) elemental P, a nonvolatile component of the water permeability-imparting agent having an iodine value of 0.5-100 g I2 / 100 g and an acid value of 0.5-100 mgKOH / g. The water permeability-imparting agent includes an active agent (P), and the active agent (P) preferably includes necessarily a compound (A) represented by general formula (1) and a compound (B) represented by general formula (2), and includes optionally a compound (C) represented by general formula (3).

The invention provides a frozen confection product comprising oil bodies and from 2 to 35 wt% total fat; at most 15 wt % protein; and from 5 to 40 wt% sugars; wherein at least 25 wt% of the fat is present as oil bodies; and wherein the oil in the oil bodies has an iodine value of less than 100 and comprises at least 45% C18:1 fatty acids.

The invention relates to the technical field of diesel oil preparation, in particular to a preparation method of environment-friendly diesel oil with an ultralow condensation point. Comprising the following steps: step 1: raw material pretreatment: S1.1, raw material component screening and proportion determination (in percentage by mass): a basic component: hydrofined diesel oil fraction (straight-run diesel oil is subjected to hydrodesulfurization / dearomatization, the distillation range is 180-360 DEG C, the sulfur content is less than or equal to 5 ppm, the aromatic hydrocarbon content is less than or equal to 10%, and the cetane number is more than or equal to 50), and the proportion is 60-70 wt%; the bio-based pour point depressing component comprises 10-15 wt% of rapeseed oil methyl ester biodiesel (the acid value is less than or equal to 0.5 mgKOH / g, the moisture is less than or equal to 0.05 wt%, and the iodine value is 100-120 gI / 100 g); the modified synthetic ester pour point depressant is a pentaerythritol fatty acid ester-polymethacrylate grafted copolymer (the number-average molecular weight is 8000-12000, and the ester content is 40-50 wt%); the condensation point of the finished diesel oil is less than or equal to-45 DEG C, the cold filter plugging point is less than or equal to-38 DEG C, the low-temperature fluidity is excellent, the finished diesel oil is suitable for all-weather use in-45 DEG C alpine regions, the sulfur content is less than or equal to 5ppm, the aromatic hydrocarbon content is less than or equal to 15%, the cetane number is greater than or equal to 52, the national VII diesel oil standard is completely met, and the particulate matter emission after combustion is reduced by 18%

To provide a hair cosmetic composition that can realize a finish having both moist weight and softness of hair.SOLUTION: A hair cosmetic composition of the present invention contains components (A) oily component, (B) polyhydric alcohol and (C) cationic surfactant, where the component (A) is a combination of an oily component (A1) having an iodine value 35 or more and an oily component (A2) having an iodine value of less than 35, where a content mass ratio [(A2) / (A1)] of the component (A2) for the component (A1) may be 0.2 to 12, and this constitution can realize a finish having both moist weight and softness of hair.SELECTED DRAWING: None

The invention relates to the technical field of water treatment, and discloses a water purification method for removing micro-plastics in water through photocatalysis-activated carbon synergism, which comprises the following steps: S1, preparation of functional composite particles: raw materials: activated carbon particles (the particle size is 0.5-2mm, the specific surface area is greater than or equal to 800m < 2 > / g, and the particle size is 0.5-2mm); the iodine value is greater than or equal to 1000mg / g), the photocatalyst precursor is selected from one or more of graphite phase carbon nitride g-C3N4, bismuth vanadate BiVO4 and titanium dioxide TiO2, and the transition metal salt is selected from one or more of ferric nitrate Fe (NO3) 3, copper sulfate CuSO4 and ferrous chloride FeCl2. A photocatalyst is directionally loaded on the surface of activated carbon through a silane coupling agent, a space coupling structure of'activated carbon adsorption of microplastics-photocatalyst in-situ degradation 'is formed, the microplastics are directly contacted with the photocatalyst (the contact distance is less than 10 microns) after being enriched by the activated carbon, and the problem of separation of the microplastics and the photocatalyst in a traditional mixed system is avoided.

The purpose of the present invention is to provide a method for suppressing an increase in the acid value of an oil and fat composition for cooking, wherein the increase is associated with deterioration of oil or fat in the composition. An oil and fat composition for cooking is provided, the composition comprises: an edible oil and / or an edible fat; and an emulsifier. The emulsifier is a polyglycerol fatty acid ester, and has an acid value of 7 or less. The polyglycerol constituting the polyglycerol fatty acid ester has an average degree of polymerization of 2 or more. The emulsifier has an iodine value of 70 or more, and an alkali metal content of 500 ppm or more. The oil and fat composition comprises the emulsifier in an amount of 0.01-5 mass%.

The invention relates to the technical field of tire rubber, and discloses a cord fabric rubber composition containing modified liquid regenerated rubber and a preparation method thereof.Unsaturated liquid regenerated rubber is subjected to grafting-micro-crosslinking modification through organic peroxide, and the cord fabric rubber composition containing modified liquid regenerated rubber is obtained on the premise that high-corrosivity monomers are not introduced and the viscosity is not excessively improved; the unsaturation degree of the unsaturated liquid regenerated rubber is reduced to a semi-activation interval (iodine value is 5-25), so that the unsaturated liquid regenerated rubber is added into a cord fabric rubber composition without basically influencing 100% stress at definite elongation, tensile strength, elongation at break and DIN abrasion, and the adhesiveness can be improved. The modified liquid regenerated rubber is simple in preparation process and free of anhydride peculiar smell, a short-time melting method is adopted, and vacuum devolatilization is performed after the reaction is completed, so that deep scorching and yellowing are avoided.

The utility model discloses a waste gas treater for advanced treatment, which comprises a treatment main machine, an activated carbon box is arranged at an air outlet of the treatment main machine, and columnar activated carbon with the iodine value of 200-800 is arranged in the activated carbon box; and the length of the columnar activated carbon is 6 to 10 mm. According to the utility model, the activated carbon box is additionally arranged at the rear part of the air outlet of the treatment main machine, and columnar activated carbon is filled in the activated carbon box, so that residual pollutants can be deeply adsorbed, and VOCs (Volatile Organic Compounds) can be efficiently removed; the porous structure of the activated carbon can adsorb volatile organic compounds (such as benzene, methylbenzene, formaldehyde and the like), and particularly has a remarkable effect on low-concentration or refractory organic matters; fine particles can be captured, aerosol, heavy metal (such as mercury vapor) and the like can be adsorbed, and the defects of front-stage treatment (such as dust removal and washing) are overcome; and the activated carbon has strong adsorption capacity on foul gases (such as hydrogen sulfide and ammonia gas) containing sulfur, nitrogen and the like, so that the quality of surrounding air is obviously improved.

Provided is an olein fraction of an interesterified fractionated fat blend that has a solid fat content (SFC) at 20 °C of about 20.0% to about 65.0%, a SFC at 30 °C of about 8.0% to about 35.0%, and a SFC at 40 °C of about 1.0% to about 25.0%; wherein the fat blend comprises an interesterification product of a pre-interesterification mixture that includes: 15-75 wt% of an edible liquid fat, and 25-85 wt% of a fully hydrogenated edible fat with an iodine value of at most 4.0 and having SFC of greater than or equal to 85.0% at 40 °C.

The invention relates to the technical field of microbial fermentation, in particular to a method for preparing leiocassis longirostris oil through salting fermentation. The fish oil is produced by using the leiocassis longirostris viscera as the raw material, and the problem of high-value utilization of by-products such as the viscera in the leiocassis longirostris processing process can be solved. Results of the specific embodiment of the invention show that compared with a cooking method and a salting fermentation method, the fish oil can be rapidly produced without high-temperature heating, and the fish oil is brighter in color and better in quality, mainly has lower acid value, peroxide value, moisture and volatile matter content, higher iodine value and higher unsaturated fatty acid content, and has a wide market application prospect.

The invention discloses a detection method for rapidly measuring the quality of activated carbon through ethanol adsorption. The detection method comprises the following steps: obtaining a plurality of commonly-used industrial activated carbon quality evaluation indexes; obtaining the ethanol adsorption rate of the activated carbon under a certain condition; based on each quality evaluation index of the activated carbon and the ethanol adsorption rate, constructing a relational expression between each quality evaluation index of the activated carbon and the ethanol adsorption rate; and based on the relational expression and the ethanol adsorption rate of the to-be-detected activated carbon, obtaining the CTC value, the iodine value, the specific surface area and other quality evaluation indexes of the to-be-detected activated carbon. According to the detection method, each quality evaluation index of the activated carbon is estimated by rapidly determining the ethanol adsorption rate of the activated carbon, the problems that an existing detection method is complex in operation process, time-consuming, high in cost, prone to causing harm to the environment and the like are solved, and the detection method has high industrial practical application value.

The present invention provides a rubber composition, containing 10 parts by mass or more and 90 parts by mass or less of a rubber-like polymer having an iodine value of 10 to 200 (g / 100 g), a content of an ethylene structure of 3% by mass or more, a content of an aromatic vinyl monomer block of less than 10% by mass, and a content of a conjugated diene monomer unit of 2% by mass or more; 10 parts by mass or more and 90 parts by mass or less of a natural rubber; and 20 parts by mass or more and 80 parts by mass or less of a silica-based inorganic filler and a carbon black, with respect to 100 parts by mass of a total amount of a rubber component.

The present invention addresses the problem of providing a pyrolysis oil that is easily usable as a raw material for a chemically converted product. A solution to the problem is a pyrolysis oil obtained by thermally decomposing waste materials including used tires. The pyrolysis oil is characterized by exhibiting a 90%-distillation temperature of 400°C or less and having an iodine value of 180 g I2 / 100 g or more.

This invention relates to an online monitoring and closed-loop control system for trans fatty acid content in hydrogenated oils, applied in the field of oil hydrogenation processing technology. The system includes a sampling pretreatment unit, a spectral detection unit, a control unit, and a hydrogenation execution unit. The sampling pretreatment unit processes high-temperature, high-pressure solid-containing materials, outputting uninterrupted test data. The spectral detection unit incorporates a quantitative prediction model for trans fatty acids and iodine value, outputting content data in real time. The control unit constructs a multi-parameter coupled collaborative control model with trans fatty acids as the first priority and iodine value as the second priority, outputting control commands. The hydrogenation execution unit adjusts hydrogen flow rate, stirring rate, and reaction temperature, forming a fully closed-loop feedback control chain. This invention achieves online real-time monitoring and precise closed-loop control of trans fatty acids, overcoming the industry bottleneck of traditional offline detection's lag and inability to suppress trans fatty acid formation, significantly improving product safety and process stability.

Provided is a stearin fraction of an interesterified fractionated fat blend that has a solid fat content (SFC) at 20 °C of about 80.0% to about 98.0%, a SFC at 30 °C of about 70.0% to about 95.0%, and a SFC at 40 °C of about 58.0% to about 82.0%, and a crystallization onset temperature of about 38.0 °C to about 55.0 °C; wherein the fat blend comprises an interesterification product of a pre-interesterification mixture that includes: 15-75 wt% of an edible liquid fat, and 25-85 wt% of a fully hydrogenated edible fat with an iodine value of at most 4.0 and having SFC of greater than or equal to 85.0% at 40 °C.

Provided are: a curable resin having excellent adhesion to a metal foil and good electrical characteristics and heat resistance; a method for producing the curable resin; a curable resin composition containing the curable resin; a prepreg; the curable resin has at least an alpha-olefin structure represented by formula (1), and has an iodine value of 70 or more and a weight-average molecular weight Mw of 2500 or more. In formula (1), R1 each independently represents a C1-10 hydrocarbon group or haloalkyl group, p1 represents a real number of 0-4, and * each represents a bonding position.