47results about How to "Light shade" patented technology

The invention relates to a disperse dye capsule / active dye polyester-cotton fabric one-bath process dyeing technology. Research on the disperse dye capsule / active dye polyester-cotton fabric one-bath process dyeing technology is performed from the points of selection of an active dye influencing the dyeing effect of the polyester-cotton fabric one-bath process, the bath ratio, the heating speed, the warm-keeping time and other factors, and an optimum dyeing technology is obtained. Compared with a routine one-bath method, under the premise of avoiding a reducing cleaning process, the obtained color is deeper than that of dyed fabric by using a routine method employing the reducing cleaning process, and the disclosed technology has the biggest advantage of preventing reducing cleaning from destroying the active dye; and the dry / wet friction fastness, and the staining fastness and the discoloring and fading grade at 60 DEG C of the dyed fabric are relatively high, and the grades are all 4 grade or more. The absorbance of a dyeing raffinate from which the microcapsule is filtered off is about half of the absorbance of a routine one-bath method, and the chroma of the raffinate is obviously reduced. The technology is simple, relatively short in time, relatively small in chroma of dyeing wastewater and relatively small in water consumption.

The present invention belongs to the field of resin preparation technology that is a kind of connecting material to printing ink. It is obtained with processed by the following steps: arbitrarily mixing p-methyl hydroxybenzene, p-tert-butylphenol, p-tex-octylphenol and p-nonylphenol, making them produce reaction with formaldehyde to synthesize A-stage mixed alkyl phenolic resin, then using rosin to make modification and using polyhydric alcohol to make esterification. Said invention is easy to operate, safe, and its resin oil-solubility and fatty hydrocarbon solubility are good. Its colour islight and softening point is high. The printing ink made up by using said invented product does not skin, and possesses good printing property.

The invention is a method of making mixed alkyl Arcolite condensation compound, using the mixture of any two or three of the para-tert.-butyl phenol, para-tertiary octyl phenol and para-nonyl phenol to make condensation reaction with polyformaldehyde in a weakly basic catalyst water solution to prepare the condensation compound. It can also react with colophony to make colophony modified mixed alkyl Arcolite. The invention replaces 37% formaldehyde water solution with the polyformaldehyde and uses weak base as a catalyst, thus omitting two process steps of HCl neutralization and water-washing, reducing the discharge of phenol waste water, and beneficial to environmental protection.

The invention provides a production method of esterquats. The method includes an ester amine production step and a step of esterquats production by utilizing ester amine. In the ester amine production step, fatty acid, a catalyst and a conditioner are added into a loop reactor, then the temperature is raised and alkanolamine is added continuously, when the reaction is terminated, steam is introduced for deodorization treatment, so that the ester amine can be obtained. In the step of producing esterquats by utilizing ester amine, the ester amine is pumped into a quaterisation reactor, and an alkylating agent is added into the quaterisation reactor continuously so as to react with the ester amine under stirring and external circulation, then the reaction end point is determined by analyzing the free amine value of a quaterisation product, thus the production of esterquats can be completed. The production method of esterquats in the invention realizes industrial production of ester amine by utilizing a loop reactor. Production of esterquats through a quaterisation reactor with a stirrer and external circulation has the advantages of short reaction time, high yield, small odor in products, light color, good quality, and low production cost.

The invention relates to a beta-ketonic ester and benzyl structure contained high-sublimation-fastness disperse dye compound, and preparation and application thereof. The compound has a general structural formula as described in the specification. The preparation method comprises the following steps: (1) diazonium salt preparation; (2) coupling component preparation; and (3) coupling reaction. The dye provided by the invention has the following advantages: sythetic process is simple; polyester and cellulose acetate fibers are dyed, so dyed fabrics have rich hue; various fastnesses are excellent, and specifically, sublimation fastness can reach to level 5; and good application prospect is obtained.

The invention discloses a preparation method of C9 petroleum resin. The preparation method comprises the following steps of injecting any cracking C9 fraction or all fractions having a boiling range of 140-230 DEG C into a microchannel reactor having the inner diameter of 0.1-3.0mm, retaining the reaction materials in the microchannel reactor at a temperature of 170-280 DEG C for 1-30min, collecting reaction products and carrying out reduced-pressure distillation to obtain the C9 petroleum resin. The preparation method has the advantages that 1, the polymerization process is finished in the microchannel reactor without conventional stirring so that a reactor structure is simplified and power consumption is reduced, 2, the microchannel reactor has fast heat transfer and mass transfer capability so that isothermal polymerization in the reaction is realized easily and reaction retention time is very short, and 3, the polymerization process is operated continuously, reaction conditions can be freely changed, C9 petroleum resin chroma is shallow and a softening point can be adjusted.

The invention discloses a nickel-based catalyst used for preparation of hydrogenated petroleum resin as well as a preparation method and application of the catalyst. The method comprises the followingsteps: preparing carbonate radical intercalated NiMgAl-M-LDH (M=La or Cu) quaternary hydrotalcite by adopting a urea hydrolysis method, performing high-temperature calcination, and performing reduction in a reducing atmosphere to obtain the nickel-based catalyst having a high specific surface area and a highly-dispersed active center. According to the catalyst synthesized by the method, auxiliaryagent metal element La or Cu is doped, so that the acidity of the surface of the catalyst can be effectively neutralized, inhibition of hydrodegradation of petroleum resin is facilitated, the softening point of the hydrogenated product is improved, dispersity of the active center Ni can be effectively increased, and deep hydrogenation of unsaturated hydrocarbon bonds in the petroleum resin can bepromoted; and the catalyst has a simple and easy synthetic method, low preparation costs, a simple hydrogenation process and easy industrialization, and when the obtained catalyst is used for hydrogenation of the petroleum resin, the hydrogenated petroleum resin having a water white color and a high softening point can be prepared.

The invention relates to a preparation method for preparing polyethylene wax by using a solvent, which comprises the steps of increasing the temperature of 100g of raw materials to the reaction temperature under the action of 100ml of the solvent, cracking for a certain time, reducing the temperature to the room temperature, discharging the materials, carrying out treatment, and obtaining the lowmolecular weight polyethylene wax; the raw materials comprise high-density polyethylene, low density polyethylene and self-collected waste polyethylene PE which is obtained by washing and cutting plastic bags; the solvent comprises water, cyclohexane and tetralin; the reaction temperature is generally from the boiling point of the solvent to 500 DEG C; and the cracking time is 2-24h. The prepration method has the advantages that a solvent system can lead the reaction to carry out more uniformly, thereby effectively preventing excessive cracking and carbon deposition phenomenon, preventing thepartial reaction raw materials from winding and concentrating on a stirrer and leading a product to be separated easily.

The invention discloses a technology for producing greasy crystallized honey. The technology comprises the following steps of 1, a seed preparation comprising mixing rape honey, clean water and micro-grinded bee pollen, stirring to obtain a seed mixed solution, heating rape seed raw material honey in a water-bath, adding the heated rape seed raw material honey into the seed mixed solution with stirring, filtering by a sieve of 60 meshes, pouring the filtrate into a wide-mouth container, and putting the wide-mouth container into an inclosed thermostatic chamber having a temperature of 15 to 20 DEG C for 10 to 15 days to obtain crystal seeds, 2, a raw material honey selection process comprising selecting all natural honey having a light color, low water content less than 20% and high glucose content more than 35% as a raw material for production of the greasy crystallized honey, and 3, a raw material honey inoculation and crystallization process comprising a, inoculation, b, pre-crystallization, and c, after-crystallization. The greasy crystallized honey obtained by the technology has white and smooth appearance, a fine taste, and good stability, plasticity and repeatability.

The invention belongs to the technical field of food additives and provides a preparation method of edible color lake based on calcium carbonate. The preparation method comprises steps as follows: S1,dissolving carbonate in water to obtain a carbonate solution; S2, dissolving water-soluble anionic pigment in the carbonate solution obtained in S1 to obtain a mixed solution; S3, adding hydrochloricacid to the mixed solution obtained in S2, and adjusting the pH to 7-10.54; S4, dissolving calcium salt into water, then adding an obtained solution to the solution obtained in S3, controlling the pHof the solution in the range of 6-9, and performing ultrasonic treatment for 1-10 min and centrifugation to obtain calcium carbonate precipitates adsorbing pigments; S5, drying and grinding the calcium carbonate precipitates adsorbing pigments to obtain the edible color lake based on calcium carbonate. The insoluble problem that aluminum color lake has potential safety hazard is solved.

The invention discloses a supported nickel-based catalyst, a preparation method thereof, and an application of the catalyst in catalytic hydrogenation of C5 / C9 petroleum resin. The catalyst is a mesoporous hollow nanosphere catalyst Ni-M-SiO2 prepared by taking SiO2 as a carrier, taking Ni as a main active metal center, and adding an assistant metal M (M=Cu / Co / Mg). The prepared catalyst has a relatively large specific surface area, the particle size of active metal particles is small, dispersion is uniform, the binding force with the carrier is strong, and loss and agglomeration do not occur easily in a reaction process. When being applied to a hydrogenation reaction of C5 / C9 petroleum resin, the catalyst not only has relatively high catalytic hydrogenation activity and decoloring performance, but also can effectively inhibit great reduction of the softening point, and is suitable for preparing high-quality hydrogenated petroleum resin. The obtained product is low in bromine price (smaller than 1.2 g Br2 / 100 g), small in color scale (Gardner color scale smaller than 0.6), and is high in softening point (larger than 84 DEG C).

The invention discloses an electric curtain track with a track butt joint device, which comprises the track butt joint device, two ends of the track butt joint device are connected with curtain tracks, the track butt joint device comprises a track rotating device and a track connecting piece, one end of the track connecting piece is connected with the track rotating device, and the other end of the track connecting piece is connected with the curtain tracks. The curtain rails are rotatably connected through the rail butt joint devices. And by arranging the rail butt joint device, the curtain rails can rotate at any angle according to actual requirements. The stroke is adjusted through the clutch type gear, and synchronous rotation of the left curtain track and the right curtain track is achieved. The fixing buckles are arranged at the two ends of the sliding rail, the pulleys at the two ends of the curtain rail are fixed through the fixing buckles, and the problem of curtain light leakage caused by the fact that the pulleys move to drive the curtain to move is solved. By arranging the magnetic attraction pulleys, the magnetic attraction pulleys are attracted together through the magnetic attraction blocks after getting close to each other in the sliding rails, the situation that the magnetic attraction pulleys are bounced off due to collision is avoided, and it is guaranteed that the curtain is closed without light leakage.

The invention relates to a preparation method of grease acyl amino acid salt. The preparation method comprises the following steps: mixing glycerol and an alkali catalyst, and reacting to prepare a mixture A; and adding monolaurate, grease and amino acid salt into the mixture A, and heating to 90-138 DEG C to carry out ammonia ester exchange reaction. Glycerol can play a role of a dispersing agentso that the problems of non-uniform stirring and difficult stirring in the reaction process are solved; and the product can also react with a base catalyst and is subjected to intermolecular dehydration, and the product can promote the subsequent ammonia ester exchange reaction. Monolaurate is subjected to an ammonia ester reaction with grease and amino acid salt, the effect of a penetration enhancer can be achieved, the difficulty of ammonia ester exchange between grease and amino acid salt is reduced, the reaction process is accelerated, and the conversion rate is increased; the heterogeneous system can be converted into a homogeneous system at a lower temperature, the problems of non-uniform stirring and difficult stirring in the reaction process are improved, and the system is slowlychanged into paste at the later stage of the reaction so that the reaction endpoint is convenient to judge.

The invention discloses a method for treating wastewater generated after preparing alcohol from cassavas as a raw material. The method comprises the following steps: (1) adding a primary flocculant according to an amount of 2-5kg / ton of wastewater into aerobic effluent which is discharged by virtue of active sludge treatment after preparation of alcohol, stirring uniformly, and standing for 10-40 minutes to obtain a sludge deposit and a supernatant; (2) adding a Fenton reagent into the supernatant, wherein the used amount of hydrogen peroxide is 0.8-2kg / ton of wastewater, the used amount of a ferrous salt is 0.6-3kg / ton of wastewater, and hydrogen peroxide is subjected to oxidative degradation reaction with substances in the supernatant; (3) adding an acid-alkali regulator to adjust the pH value to 6-9, and performing aeration treatment; and (4) adding a secondary flocculant into the waste solution after the aeration treatment according to a used amount of 2-10g / ton of wastewater to perform secondary sedimentation so as to ensure that residual impurities are deposited. After the wastewater is treated by the method disclosed by the invention, the COD (chemical oxygen demand) and SS (suspended substances) in discharged water are reduced to a very low level, the COD value is less than 300mg / L, the SS value is lower than 150mg / L, the color of the discharged water is light, and the foam in the discharged water is less, so that the wastewater reaches a standard of direct discharge.

The invention discloses a preparation method of tung oil. The preparation method comprises P1, putting tung tree green fruits into a de-seeding machine and carrying out husking and seed collection, P2, carrying out primary pressing on the tung tree seeds obtained by husking to break the seeds, P3, screening the tung tree seeds obtained by primary pressing seed breaking, P4, putting the screened qualified tung tree seeds into a drying machine and carrying out heating drying, P5, putting the heated and dried tung tree seeds into a squeezing machine and carrying out squeezing to obtain tung oil, P6, filtering the tung oil, P7, heating the filtered tung oil to 75-80 DEG C, P8, conveying the heated tung oil into a vacuum pumping device and carrying out vacuum water and impurity pumping, and P9, conveying the tung oil into a settling tower, carrying out further precipitation and carrying out refining to obtain refined tung oil. The de-seeding machine and the dryer used by the preparation method have simple structures, are convenient in use, save labor resources, reduce labor intensity, improve efficiency and meet the needs of large-scale production. The refined tung oil obtained by the preparation method has high quality, is in a light color, has low content of impurities and satisfies national standards.

The invention relates to a method for preparing polyisocyanate containing allophanate and isocyanurate groups, in particular to a bio-based pentamethylene diisocyanate curing agent as well as a preparation method and application thereof. The preparation method of the bio-based pentamethylene diisocyanate curing agent provided by the invention can be used for preparing a polyisocyanate curing agentcontaining allophanate and isocyanurate groups, and comprises the following steps: mixing a PDI monomer with a hydrolytic chlorine concentration of 0-50ppm with a catalyst A, carrying out pre-reaction for 0-5h, diluting a PDI tripolymer catalyst with a mixed solvent (a solvent B and a solvent C), dropwise adding the PDI tripolymer catalyst at a constant speed section by sections, carrying out polymerization reaction, adding a polymerization inhibitor to terminate the reaction when the conversion rate reaches 30%-40%, adding an antioxidant D, and carrying out two-stage separation by virtue ofa film evaporator and a molecular distiller to obtain a PDI-type polyisocyanate composition.The residual PDI monomer in the product is 0.5% or below, viscosity is low, and color is light. Meanwhile, the curing agent has good compatibility with hydroxyl resin, and has the advantages of being high in reaction activity, high in glossiness, good in chemical medium resistance and the like.

This invention discloses a corrosion inhibitor for grease lubricant. The structural formula of the corrosion inhibitor (benzotriazole derivative) is shown in this invention. The corrosion inhibitor is prepared by the reaction between benzotriazole and ester of mono unsaturated acid. The corrosion inhibitor can solve the problem of copper corrosion caused by free acids and corrosive medium due to oxidation of grease lubricant in the using environment.

The invention provides a new process for treating synthesized chlorpyrifos. The process comprises the following steps: standing for layering after reaction of chlorpyrifos; taking an oil phase from a lower layer, washing with water at first, and then washing the chlorpyrifos by using alcohol; and performing suction filtration and drying to obtain a white chlorpyrifos crude drug finished product. The process provided by the invention is simple, and by adopting the process, the production of wastewater is greatly reduced, the production cost of the chlorpyrifos is reduced, and the finished product is high in purity, less in impurity and light in color. The market competitiveness of the chlorpyrifos is improved.

The invention discloses a tung oil extraction method. The method comprises the following steps: P1, oil tung green fruits are placed in a de-seeding machine, such that the fruits are shelled, and seeds are obtained; P2, the tung seeds obtained after shelling are preliminarily pressed and crushed; P3, the tung seed particles obtained in the preliminary pressing and crushing process is placed in a drying machine, and is heated and dried; P4, the heated and dried tung seeds are pressed in a pressing machine, such that tung oil is obtained; P5, the tung oil is filtered; P6, the obtained tung oil is heated to a temperature of 70-75 DEG C; P7, the heated tung oil is delivered to a vacuum extraction device, such that water and impurities are extracted under vacuum; P8, the tung oil is delivered to a precipitation tower and is subjected to one-step precipitation, such that refined tung oil is obtained. The de-seeding machine and the drying machine adopted by the invention have the advantages of simple structures and convenient application, such that labor resource can be saved, labor intensity can be reduced, efficiency can be improved, and the need of large-scale production can be satisfied. With the method, the refined tung oil has high quality, light color and low impurity content, and reaches national standards.

The invention discloses a method for decoloring food-grade alkali / ester combined refining zanthoxylum seed oil. The method comprises the following steps: under N2 protection, zanthoxylum seed oil and a food-grade sodium hydroxide solution with concentration being 1-5% and ethyl acetate are placed in water-bath at the temperature of 20-80 DEG C, are fully stirred and uniformly mixed, then reacted for 30 minutes, the components are taken out and cooled to the room temperature, then the components are centrifugalized, finally a supernatant is subjected to underpressure distillation to obtain the refined and decolored oil, at the same time, ethyl acetate is recovered, and solid by-product sodium fatty acid at a lower layer is recovered. The refined decolouring oil has the advantages of low acid value, light chroma, no peculiar smell, and high refining yield, through one time treatment, the acid value and chroma can reach a national first-order standard of edible oil; ethyl acetate is recovered for reuse, the sodium fatty acid can be taken as a raw material of an industrial detergent. The method has the advantages of simple operation, low cost, and easy industrialization. The method provides scientific basis for decoloring method for the refining zanthoxylum seed oil.

The invention discloses a modified dicyclopentadiene hydrogenated petroleum resin and a preparation method thereof. The preparation method specifically comprises: (1) carrying out a thermal polymerization reaction on dicyclopentadiene and a modifier in an organic solvent to produce a petroleum resin, wherein the modifier is acrylimidazole or N-vinylimidazole; and (2) carrying out a hydrogenation reaction on the petroleum resin obtained in the step (1) under the action of a catalyst to obtain the modified dicyclopentadiene hydrogenated petroleum resin. According to the present invention, the preparation method is simple, and the obtained modified dicyclopentadiene hydrogenated petroleum resin has characteristics of high thermal stability, good compatibility with elastomers (such as SIS, SBSand the like) in hot melt adhesives, and relatively light color.

The present invention belongs to the field of resin preparation technology that is a kind of connecting material to printing ink. It is obtained with processed by the following steps: arbitrarily mixing p-methyl hydroxybenzene, p-tert-butylphenol, p-tex-octylphenol and p-nonylphenol, making them produce reaction with formaldehyde to synthesize A-stage mixed alkyl phenolic resin, then using rosin to make modification and using polyhydric alcohol to make esterification. Said invention is easy to operate, safe, and its resin oil-solubility and fatty hydrocarbon solubility are good. Its colour is light and softening point is high. The printing ink made up by using said invented product does not skin, and possesses good printing property.

The invention discloses an extraction method of mixed long-chain dicarboxylic acid and the mixed long-chain dicarboxylic acid. The extraction method of the mixed long-chain dicarboxylic acid comprisesthe step of carrying out electrodialysis on a to-be-refined mixed long-chain dicarboxylic acid salt solution through an electrodialysis device to obtain a purified mixed long-chain dicarboxylic acidsalt solution. The extraction method provided by the invention effectively solves the problem of extraction and purification of a mixture containing long-chain dicarboxylic acid discharged in the process of extracting and refining the long-chain dicarboxylic acid by fermentation liquor of the long-chain dicarboxylic acid. A high-quality mixed long-chain dicarboxylic acid finished product is obtained, and the product is light in color and good in quality. Wide application prospects are realized in the fields of plasticizers, lubricating agents, antirust agents and the like. Alkali liquor and acid liquor obtained from the concentration chamber after electrodialysis can be applied to the next mixed dibasic acid extraction process and used for pH adjustment in the mixed dibasic acid dissolution and precipitation process, and thus cyclic utilization of atoms is achieved.

The tung oil refining process includes the following steps: heating tung oil obtained through squeezing and filtering to 70-90 deg.c; vacuum extracting water and impurity inside a vacuum extractor; and deposition for at least 15 days inside one depositing tower to obtain refined tung oil. The said tung oil refining process has highest temperature of 90 deg c and can ensure light color of tung oil, high quality, impurity content less than 0.15 %, and water content less than 0.1 %.

The invention discloses a method for preparing petroleum resin with C9 fraction as the raw material, and aims at providing the preparation method which can increase the yield of petroleum resin, shorten the reaction time, improve product quality, improve the postprocessing process and reduce environment pollution generated by postprocessing. The method is technically characterized by including the steps of firstly, using n-heptane accounting for 15-25% of the volume of the raw material as solvent, adding the raw material and the solvent into a reactor with a stirring device, and adding phosphotungstic acid, loaded on an Al-MCM-41 molecular sieve, as a catalyst, wherein the use amount of the catalyst accounts for 1-3% of the mass of the raw material; secondly, adding nitrogen for replacement, starting stirring, setting the pressure in a kettle to be 0.4-0.9 MPa, heating the mixture to 60-100 DEG C, unceasingly stirring the mixture for 5-10 hours at the temperature, pressing out crude petroleum resin through nitrogen after the reaction is completed, conducting normal-temperature reduced pressure distillation, recycling solvent, and obtaining the C9 petroleum resin.

This invention, a kind of lube for tetrafluoroethane refrigerant, relates to lubricant. It solves problems about weak heat resistance, short-time ageing resistance, and hard rerrence of chemial components. It adopts isocyanurate's heterocyclic carbon-nitrogen unit which has strong heat resistance and good ageing resistance. It also adopts single acid and polyol to react to produce three kinds of clear structure liquid compound, the weight percent of which is: 18-27% diethyl adipate, 22-33% isooctanoic adipate, 40-60% 2,2-dimethyel-1,3-propanediol. In short, the invention mainly used as refrigerant.