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130results about How to "No flocculation" patented technology

Method for producing the red pigment of ferric oxide from ferrous sulphate of byproduct abolished by titanium white

A process for preparing iron oxide red pigment from ferrous sulfate as the by-product of titanium oxide includes such steps as reducing iron scale at 50-70 deg.c, hydrolyzing for 6-10 hr, flocculating, deposition, refining heptahydrated ferrous sulfate, neutralizing with ammonia to generate crystal seeds, and neutralizing with ammonia while oxidizing with air to obtain target product. Its by-product, solution of ammonium sulfate, can be used for preparing composite fertilizer.
Owner:CNOOC CHANGZHOU PAINT & COATINGS IND RES INST

Novel modified emulsifying olefin concrete curing agent

ActiveCN101298373ASave labor, time and waterEasy to use in constructionParaffin waxAcrylic polymer
The invention relates to a novel modified emulsified paraffin concrete curing agent. Aiming at overcoming the defects that the existing concrete curing agent cannot reach the industrial standard on building material in terms of the water retention property and is unfavorable for environmental protection, the price is high and the decoration at later stage is also affected, the following technical proposal is provided: the curing agent is mixed with the following materials and water: 10-20% of vinyl acetate-ethene high molecular polymer emulsion, 0-5% of silicone resin modified acrylic polymer emulsion, 50-75% of paraffin emulsion, 0.1-0.5% of colloidal dispersing agent of the emulsified paraffin for stabilizing the emulsion state and 0.05-0.02% of special defoamer for emulsion. The invention has the beneficial effects that: the chemical curing method which is adopted for retaining water is an innovation for the traditional curing method; compared with the prior art, the method is labor-saving, time-saving and water-saving and is convenient to operate, can improve the film formation ability and the sealing ability of the emulsified paraffin emulsion, and can improve the bonding and absorbing capacity of the emulsified paraffin emulsion on the concrete surface, which leads the effective water retention rate of the coating film to reach more than 90%.
Owner:LIAONING BUILDING SCI RES INST

Method for preparing lutein water-soluble dry powder

The invention discloses a preparation method of food-grade lutein water-soluble dry powder. The content of the all-trans isomer of the active ingredient in the product obtained by the existing method is low, and the structure is amorphous, which affects the coloring effect or bioavailability of the product. The steps of the present invention are as follows: after mixing lutein crystals with a low-boiling, volatile organic solvent with high solubility to lutein crystals, heating and dissolving to obtain an oil phase; mixing denatured starch with water, heating and dissolving, and cooling to obtain an aqueous phase ; The oil phase is slowly added to the water phase under stirring to obtain an emulsified mixed solution; the emulsified mixed solution is uniformed through a high-pressure homogenizer, so that the particle size of the emulsion reaches the nanometer level; the organic matter in the emulsion system is removed by conventional separation methods Solvent; use spray drying method or spray-starch fluidized bed drying method to remove water in the emulsion to obtain dry powder. The invention greatly increases the all-trans content of the active ingredients in the final product, is all amorphous, and has good coloring and nutritional strengthening effects.
Owner:ZHEJIANG MEDICINE CO LTD XINCHANG PHAMACEUTICAL FACTORY

Non-ionic self-emulsification solid epoxy resin and preparation method for emulsion thereof

The invention relates to a non-ionic self-emulsifying solid epoxy resin and a preparation method of the emulsion of the resin, belonging to the coating material chemical manufacturing industry. The preparation method adopts a 'two-step method' principle during preparation: step one: under the protection of nitrogen, the reaction of 5 to 25 percent of low-molecular weight epoxy resin, 40 to 70 percent of polyether alcohol, 1 to 10 percent of solvent and 0.01 to 0.1 percent of catalyst is carried out at 90 to 150 DEG C, and then a constant temperature is kept for 2 to 7 hours before intermediate is obtained through the vacuum distillation of the solvent; step two: 10 to 25 percent of intermediate, 40 to 70 percent of low-molecular weight epoxy resin, 5 to 25 percent of bisphenol A and 0.02 to 0.1 percent of catalyst are heated up to 120 to 180 DEG C, and then a constant temperature is kept for 1 to 3 hours before non-ionic self-emulsifying solid epoxy resin with medium molecular weight and high molecular weight is obtained; and finally, at the temperature of 20 to 90 DEG C, distilled water is dripped in to dilute the solution to a degree with solid content ranging between 30 and 80 percent of through violent stirring, thereby obtaining non-ionic self-emulsifying solid epoxy resin emulsion. The preparation method has convenient operation, stable manufacturing technique, energy conservation and moderate preparation process. Moreover, the water-based epoxy emulsion is exquisite and has uniform particle diameter and high product quality.
Owner:中山大桥化工集团有限公司

Method for preparing lutein water-soluble dry powder

The invention discloses a preparation method of a food grade phylloxanthin water-soluble dry powder. The content of the all-trans isomer of the active ingredient of the product obtained by means of the prior method is low with an amorphous structure, so that the coloring effect or bioavailability of the product is affected. The procedures of the invention are as follows: when a phylloxanthin crystal is mixed with a low boiling point and volatile organic solvent which has a big solubility to the phylloxanthin crystal, and then the mixer is heated and dissolved so as to get an oil phase; a modified starch is mixed with water, and the mixer is warmed up and dissolved, then is cooled so as to get a water phase; the oil phase is slowly added into the water phase after mixed around, so that an emulsive mixed liquor is gotten; the emulsive mixed liquor is uniform through a high-pressure uniform machine, thereby the latex grain diameter can reach the nanometer level; the organic solvent in thelatex system can be removed by a conventional separation method; the normal water in the latex can be removed to get the dry powder by a spray drying process or spray starch fluidized bed drying process. The invention can greatly improve the all-trans content of the active ingredient of the termination product in amorphous form, thereby the invention has the advantages of good coloring and nutrition strengthening effects.
Owner:ZHE JIANG MEDICINE CO LTD XINCHANG PHARMA FAB

Expansive waterborne fireproof and flame-retardant coating for wood material and preparation method of expansive waterborne fireproof and flame-retardant coating

The invention relates to an expansive waterborne fireproof and flame-retardant coating for a wood material and a preparation method of the expansive waterborne fireproof and flame-retardant coating. The coating comprises water and the following components in parts by weight: 200 parts of melamine-modified urea resin emulsion, 110-120 parts of ethylene-vinyl acetate copolymer emulsion, 20-24 partsof boric acid, 36-38 parts of ammonium polyphosphate, 20-24 parts of guanylurea phosphate, 36-40 parts of pentaerythritol, 30-34 parts of melamine, 1.0-1.4 parts of sulfonated carbon, 3.6-4.0 parts ofzinc borate, 2.0-2.4 parts of ammonium octamolybdate, 16-20 parts of coating auxiliaries and 0-44 parts of pigment and filler. When heated, the expansive waterborne fireproof and flame-retardant coating is capable of greatly retarding the combustion of the wood material so as to prevent fire spreading; and the expansive waterborne fireproof and flame-retardant coating has good smoke inhibiting property and is capable of delaying the smoke generation time, reducing the release amount of smoke and the generation of poisonous gases and providing more safety time and space for escape and rescue of personnel under the condition of a fire hazard.
Owner:湘诚新材料科技有限公司

Glycol-based pigment dispersoid for dacron stock solution coloring and preparation method of dispersoid

The invention discloses a glycol-based pigment dispersoid for dacron stock solution coloring, and a preparation method of the dispersoid. The glycol-based pigment dispersoid comprises a pigment, a wetting agent, a dispersing agent and glycol, wherein the mass percentage of the pigment accounts for 10-40% of total mass percentage of the glycol-based pigment dispersoid; the mass ratio of the wetting agent to the pigment is (0.03-0.1):1; the mass ratio of the dispersing agent to the pigment is (0.05-0.2):1; and the balance is complemented by glycol. In the presence of the special structures, namely the wetting agent and the dispersing agent, the prepared glycol-based pigment dispersoid has the characteristics of small particle size and narrow particle size distribution range, and has thermostability, temperature stability and higher stability in terephthalic acid and derivatives of terephthalic acid; precipitation, flocculation, and the like do not exist within 12h at 250-280 DEG C; the glycol-based pigment dispersoid serves as a dacron resin colorant and is free from coloring power and brightness reduction and spinning nozzle blocking due to increase of pigment particles in a spinning process; and the glycol-based pigment dispersoid is suitable for the dacron stock solution coloring.
Owner:SUZHOU SUNMUN TECH CO LTD

Boiling-resistant aqueous composite ink and preparation method thereof

The invention discloses boiling-resistant aqueous composite ink and a preparation method thereof. The boiling-resistant aqueous composite ink mainly comprises raw materials including aqueous polyurethane resin, a pigment and water, and a surface wetting agent, a wetting dispersing agent and a defoaming agent are additionally added. The preparation method of the boiling-resistant aqueous composite ink comprises the following steps of: firstly, adding partial aqueous polyurethane resin into a stirring reaction kettle; secondly, slowly adding the surface wetting agent, the wetting dispersing agent and partial defoaming agent, and adding the pigment after stirring and dispersing; thirdly, stirring and dispersing at high speed, and grinding after dispersing; fourthly, adding the residual aqueous polyurethane resin and defoaming agent and stirring and dispersing, and adding the water until the required viscosity is obtained through regulation; and at last, stirring, dispersing, filtering and packaging. The boiling-resistant aqueous composite ink, provided by the invention, is prepared by taking the high-performance aqueous polyurethane resin as a connecting material, and has the advantages of good pigment dispersibility, wide use range, lower film forming temperature, better mechanical property of formed film, more uniform particle size distribution and the like, and can be used for soft retort packages.
Owner:ZHENGZHOU LETONG NEW MATERIAL TECH

EGCG (Epigallocatechin Gallate)-added compound protein acidic beverage and preparation method thereof

The invention relates to the field of beverage processing, in particular to EGCG (Epigallocatechin Gallate)-added compound protein acidic beverage and a preparation method thereof. According to the EGCG-added compound protein acidic beverage provided by the invention, the EGCG-added compound protein acidic beverage contains 0.7-1.0 part of protein, 0.3-0.6 part of stabilizer, 5*10<-3> to 20*10<-3> part of EGCG, 0.3-0.5 part of citric acid and 0.01-0.02 part of sodium L-ascorbate, based on 100 parts by weight of raw materials. According to the EGCG-added compound protein acidic beverage and the preparation method of the EGCG-added compound protein acidic beverage, the acidity is adjusted by adding the citric acid into the beverage, so that the pH value of the beverage can be in the range of 4.0 to 4.5, the EGCG can be stably present at the acidity, and soybean protein isolate and whey protein concentrate which are simultaneously added can also be stably present without flocculation; and bee honey, polydextrose and oligosaccharides are further added into the beverage, so that the EGCG-added compound protein acidic beverage has the advantages of comprehensive regulation and improvement on human metabolic function, excellent mouth feel and healthcare function.
Owner:INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD

High efficiency foliage fertilizer special for flowers and preparation method thereof

Belonging to the technical field of fertilizers special for flowers, the invention in particular relates to a high efficiency foliage fertilizer special for flowers and a preparation method thereof. The high efficiency foliage fertilizer special is composed of potassium sulfate, urea, triple superphosphate, ferric sulfate, magnesium sulfate, copper sulfate, manganese sulfate, zinc sulfate, ammonium molybdate, chitosan, an emulsifier, polyaspartic acid, and brassinolide ingredients. The foliar fertilizer special for flowers has high total nutrient content, can rapidly improve the nutrition required by flower growth to promote upgrading of flower color and petal quality and expansion of floral leaf thickness and flower discs, also avoids fertilizer's entry into soil to be fixed and transformed, can prolong the life of functional leaves, promote metabolism of the root system, and achieve the advantages of increasing fertilizer utilization rate, improving crop yield and quality and the like.
Owner:HUNAN UNIV OF SCI & ENG

Composite lignin-base viscosity breaker for drilling fluid and preparation method thereof

ActiveCN102888212AStrong temperature resistanceGood synergyDrilling compositionLignosulfonatesEnvironmental geology
The invention discloses a composite lignin-base viscosity breaker for a drilling fluid and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out sulfonation reaction to obtain lignosulfonate; (2) preparing ferrimanganic salt; and (3) preparing ferrimanganic lignosulfonate. In the composite lignin-base viscosity breaker for a drilling fluid, the water-insoluble substance content is at most 0.5%, the calcium sulfate content is at most 1.0%, the iron content is 3-5%, the complexation degree is at least 75%, and the relative molecular weight Mn is 5000-20000. The method has the advantage of low production cost; and the prepared viscosity breaker can display favorable viscosity breaking effect of the inorganic viscosity breaker, and also has favorable temperature resistance and salt resistance of the lignin viscosity breaker, thereby having favorable synergistic action. The preparation technique is simple and does not generate secondary pollution.
Owner:FUZHOU UNIVERSITY

High-calcium milk as well as raw material composition and preparation method thereof

The invention discloses high-calcium milk as well as a raw material composition and a preparation method thereof. The preparation method comprises the following steps of (1) dissolving an annion calcic compound, emulsifying salt and an emulsifier into drinking water so as to obtain a reaction liquid, wherein the temperature of the reaction liquid is 40-55 DEG C; (2) raising the temperature of the milk to be 40-55 DEG C, uniformly adding the reaction liquid prepared in the step (1) into the milk, and stirring for 5-15 minutes; (3) evaporating the moisture, wherein the mass of the moisture is equal to the amount of the drinking water in the step (1); and (4) homogenizing, sterilizing and cooling so as to obtain the high-calcium milk. The high-calcium milk disclosed by the invention is good in stability, free of protein flocculation and free of protein scaling phenomenon after being produced and boiled.
Owner:BRIGHT DAIRY & FOOD
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