50results about How to "High iodine value" patented technology

The invention provides a plant oil-based offset lithographic printing ink formula and a preparation method thereof. The plant oil-based offset lithographic printing ink formula comprises, by weight, 30-35 parts of soybean oil, 19-29 parts of tung oil, 2-5 parts of soya alkyd resin, 30-35 parts of rosin-modified phenolic resin, 2-6 parts of a dry conditioning agent, 2-5 parts of a gelling agent, 18-28 parts of a pigment, 5-10 parts of a filler, 7-7.5 parts of other auxiliary agents and 2-5 parts of a drier. The preparation method comprises 1, binder preparation, 2, accessory material addition, 3, printing ink rolling and 4, re-rolling. The plant oil-based offset lithographic printing ink formula has the advantages of good rheological performances, fast curing performances, passing performances, good glossiness and good stability and is especially suitable for newspaper and periodical printing.

The present invention provides an external preparation for skin comprising a phospholipid having an iodine value of 80 to 110, ethanol in an amount of 55 to 83 wt % and water in an amount of 15 to 43 wt %, which is improved in it's preparation stability by suppressing an increase in an acid value of phospholipid. The present invention also provides an external preparation for skin which is improved in percutaneous absorption of medically effective ingredient(s). The present invention provides further a method for suppressing an increase in an acid value of phospholipid by comprising phospholipid having high iodine value and high concentration of ethanol and water, as well as a method for improving percutaneous absorption of medically effective ingredient(s) in external preparation for skin.

The invention relates to an active carbon refining process, which comprises the following steps: active carbon crude products are prepared; the active carbon crude products are processed by A preparation process; the active carbon processed by the A preparation process is processed by B preparation process; the active carbon processed by the B preparation process is manufactured into finished active carbon after drying and sieving; the A preparation process comprises A preparation hot washing, rinsing and dehydration, and the B preparation process comprises B preparation hot washing, rinsing and dehydration; the A preparation is one water solution of sodium carbonate, sodium bicarbonate, sodium hydroxide or potassium hydroxide; the B preparation is one water solution of nitric acid, phosphoric acid, formic acid, acetic acid or hydrofluoric acid. The invention solves the problem that the impurity content is high in the existing active carbon, and the active carbon produced by the process of the invention has little impurity content and can be used for medicine and food industries.

The invention discloses a preparation method of a graphene modified activated carbon air filtering material. The preparation method comprises the following steps: crushing activated carbon, and dispersing the activated carbon and graphene into a solvent to form a mixed solution; then treating the mixed solution by a spraying method or a hydrothermal method to obtain the graphene modified activated carbon air filtering material. The method provided by the invention is simple in process and simple and convenient in operation, the prepared product has excellent adsorption efficacy, the iodine value can reach 1500 or more, the iodine value is increased by 50 to 80 percent compared with that of the traditional untreated activated carbon, the purification efficiency is improved and the air quality is effectively improved.

In order to solve the technical problems that in the conventional urea adduction method, the energy consumption for separating saturate fatty acid methyl ester is high, the product purity is low, and a large amount of urea wastewater cannot be processed, the invention provides a eutectic solvent method unpacking technology, which has high urea recovery efficiency. According to the technology, the unpacking is realized by forming a eutectic solvent, the urea recovery rate is high, and almost all urea in inclusion compounds can be separated through once mixing in an unpacking kettle. The cost of choline chloride taken as the unpacking agent is low, and choline chloride is biodegradable and environment-friendly. The technology has the characteristics that the unpacking efficiency is high and urea can be radically removed. At the same time, the formed eutectic solvent has a certain effect on removing water and few metal impurities in fatty acid methyl ester; the energy consumption and production cost are prominently reduced, and fatty acid methyl ester with a high iodine value can be obtained.

The invention relates to chlorinated sorbitol alkyd resin and a preparation method thereof. The preparation method comprises the steps of preparing sorbitol alkyd resin by taking 70wt% sorbitol water liquid, phthalic anhydride, soybean oil fat acid and benzoic acid as raw materials, diluting, and then directly chlorinating to obtain the chlorinated sorbitol alkyd resin. The chlorinated sorbitol alkyd resin provided by the invention has the advantages of low cost, strong paint preparation performance, strong corrosion resistance and the like. In addition, the chlorinated sorbitol alkyd resin is simple and convenient in preparation process, suitable for industrial production and wide in application prospect in the field of coatings.

The invention relates to a method for synthesizing biodiesel with high cetane number by catalyzing one step ester exchange of highly unsaturated fat and hydrogenation reaction, and catalyst thereof. Bifunctional catalyst alkaline earth metallic oxide loading copper oxide is prepared by chemisorption hydrolysis together with vacuum calcination with alkaline earth metallic oxide prepared by vacuum calcination as the carrier. The method includes the following steps: adding unsaturated fat, lower alcohol and catalyst to a high pressure reactor and mixing up based on the alcohol-fat molar ratio of 6-36:1 and fat-catalyst weight ratio of 1:0.01-1:0.1; filling nitrogen and hydrogen in turn to change the gas in the high pressure reactor, then sealing the reactor for heating and mixing; as the temperature rises to 150-220 DEG C, filing 1-10MPa hydrogen; after 2-20h of reaction, removing the solid catalyst of the reaction product by filtration, separating the glycerol layer, evaporating alcohol and finally getting biodiesel which contains single unsaturated oleic acid ester transformed from polyunsaturated low carbon ester with high cetane number over 51 and other properties that meet German Standard, such as low temperature liquidity and antioxidation stability.

The invention relates to a method for improving the low-temperature anti-freezing characteristic of special-grade palm oil. Palm oil with the iodine value being 60+/-1 serves as a raw material. The iodine value of the palm oil product is increased to be 67-75 through a dry fractionation crystallization technology; crystallization inhibitor diglyceride is added into the palm oil product, mixing is performed under the stirring condition at the temperature of 30-60 DEG C, and the special-grade palm oil product with the anti-freezing performance improved at the low temperature of -10 DEG C to 0 DEG C is obtained. According to the method, dry fractionation crystallization is performed, the iodine value of the obtained palm oil product is 67-75 through combination with the crystallization inhibiting effect of diglyceride, the anti-freezing performance of the product is improved by 1.5 times or higher at the low temperature of -10 DEG C to 0 DEG C and can be improved by 120 times to the highest extent, and the process overall mass yield is 50% or higher. Meanwhile, in the diglyceride preparing process of the method, diglyceride with the purity being 98% or higher can be obtained through a column chromatography method.

The invention belongs to the field of coal chemical industry, and more specifically relates to a preparation method of active coke. The preparation method comprises following steps: 1, a coal raw material is subjected to carbonization at 400 to 700 DEG C so as to obtain semicoke, wherein carbonization time is controlled to be 6 to 12h; 2, semicoke obtained in step 1 is smashed into particles of an appropriate particle size, wherein the particle size ranges from 1 to 20mm; 3, the coal particles obtained via smashing are mixed with a metal sulfide aqueous solution so as to obtain wet coal particles; 4, the wet coal particles are subjected to reaction at 100 to 250 DEG C until drying is realized so as to obtain an activated material; 5, the activated material is sieved so as to obtain a product with a particle size ranging from 1 to 20mm; and 6, an additive is added into the product, and granulation is carried out so as to obtain an active coke finished product. When the active coke is used for treating waste water containing a relatively large amount of heavy metals such as electroplating waste water, the metal sulfide in the pores of the active coke is dissolved in water, and reaction of the metal sulfide with heavy metals in water is realized rapidly, precipitate or floccule is generated, and the precipitate or floccule is intercepted in the pores of the active coke, so that most of the heavy metals is removed.

The invention provides a preparation method of a lipophilic load type NaHSO4 catalyst, and belongs to the field of catalytic chemistry. The preparation method comprises the following step: a loading material and an alkyl silane solution are uniformly mixed, filtering and drying are carried out, and a lipophilic carrier material is obtained; the lipophilic carrier material is dipped in an aqueous solution of NaHSO4, separation and drying are carried out, and the load type NaHSO4 catalyst is obtained. The method has the advantages of simple operation, stable process, and safety without toxicity; and the method is suitable for large scale industrial production. The invention also provides a lipophilic load type NaHSO4 catalyst which is prepared by the method; the catalyst has good hydrophobicity and lipophilicity, and has substantial catalysis effects for oil and fat substrates. The invention also provides an application of the lipophilic load type NaHSO4 catalyst to a dehydrated reaction of castor oil, conversion rate and yield of the reaction are good, quality of dehydrated castor oil which is obtained by the reaction is excellent, and the castor has high iodine number and low hydroxyl value.

The invention discloses a preparation method of orange oil based unsaturated resin monomer. The preparation method comprises the following steps of: reacting a certain amount of orange essential oil with unsaturated carboxylic acid or acid anhydride to prepare orange oil based unsaturated carboxylic acid or acid anhydride; and converting the prepared orange oil based unsaturated carboxylic acid or acid anhydride into salt, and reacting the salt with chloropropene to synthesize the orange oil based unsaturated resin monomer. The orange oil based unsaturated resin monomer which is prepared from the preparation method disclosed by the invention is applied to the unsaturated resin field, and can be used for preparing the corresponding products and materials by ultraviolet curing and heating curing after being mixed with other unsaturated resin monomers in a certain proportion. The unsaturated resin monomer which is prepared by using the orange essential oil as the base body material has low viscosity (500mPa.s-1000mPa.s), a high iodine value (200-270) and the potential of replacing normal non-environment-friendly diluent styrene, and therefore, the product is expected to improve the defect that the conventional unsaturated resin has poor toughness and weather resistance. Meanwhile, the comprehensive performances of the unsaturated resin copolymerized material are improved.

The invention discloses a preparation method of highly-unsaturated flaxseed oil fatty acid, relating to the technical field of agricultural product processing. The method comprises the following steps: adding flaxseed oil niger into an acidification kettle, stirring and heating; acidifying the stirred and heated flaxseed oil; washing the acidified flaxseed oil niger with water to obtain supernatant acidified oil; introducing the supernatant acidified oil into a dehydration pot, and dehydrating to obtain supernatant crude fatty acid; introducing the supernatant crude fatty acid into a hydrolysis tower, and hydrolyzing to obtain stratified crude fatty acid; introducing the stratified crude fatty acid into a dehydration tower, and carrying out dehydration and degassing to obtain the dehydrated degassed fatty acid; carrying out rectification on the dehydrated degassed fatty acid to remove plant asphalt; and introducing the rectified fatty acid into a stripping tower, and carrying out decolorization treatment to obtain the highly-unsaturated flaxseed oil fatty acid finished product. The prepared flaxseed oil fatty acid has the advantages of light color, high iodine value and high yield; and the method enhances the quality and application range of the flaxseed oil fatty acid.

The invention relates to a regenerated adsorption material and a preparation method thereof. The invention belongs to the technical field of environment-friendly material preparation. The preparationmethod comprises the following steps: putting an activated sludge adsorbing material prepared from residual activated sludge into a water body, adsorbing algae and pollutants thereof in the water bodyto obtain precipitates, separating the precipitates, and sequentially carrying out drying treatment, carbonization treatment and water vapor activation treatment on the precipitates obtained by separation to obtain the regenerated composite adsorption material. Due to the fact that the organic matter content of the prepared regenerated composite adsorption material is remarkably increased, the carbonized regenerated composite adsorption material is a multi-component phase and has multiple formed pores, the pore diameter structure and the specific surface area are remarkably increased, the adsorption effect is better, and waste recycling is facilitated.

The present invention relates to a method for improving the fat firmness and meat quality of a meat animal and/or altering the ratio of saturated fatty acids to unsaturated fatty acids in meat by administering to a meat animal (e.g., pig) a composition comprising an amount of dehydrated castor oil that is effective to improve the quality indices of the animal's meat.