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176 results about "MONOCHLOROACETIC ACID" patented technology
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Niaproof® Monochloroacetic acid. A primary field of application for Niaproof Monochloroacetic acid is the manufacture of carboxymethylcellulose (CMC), which is then used in the manufacture of adhesives; detergents; finishing agents for the textile, leather and paper industries; and drilling muds for energy production.
Preparation method and application of amphoteric chelate sorbent containing agricultural straw
InactiveCN101862642AEasy to handleSimple production processOther chemical processesWater contaminantsCross-linkEthylenediamine
The invention relates to a preparation method and application of an amphoteric chelate sorbent containing agricultural straw. The sorbent is brownish-yellow solid powder, the nitrogen content is 10.83wt%, and the specific surface area is 12.93m<2> / g. The sorbent is prepared by taking agricultural straw, epoxy chloropropane and monochloroacetic acid as raw materials, taking trimethylamine or triethylamine as a grafting reaction agent and taking ethylenediamine, diethylenetriamine or triethylenetetramine as a cross-linking agent. The method of the invention has the advantages of simple production processes, economy, practicability, reproducibility and the like and can be suitable for large-scale production. The sorbent prepared by the invention has the characteristics of good stability, good adsorption effect, wide application range and the like, can be widely applied to treatment of waste water containing heavy metal ions, and has better treatment effect.
Owner:SHANDONG UNIV
Inhibiting agent for separating copper-molybdenum mineral and preparation method and application thereof
The invention discloses an inhibiting agent for separating a copper-molybdenum mineral and a preparation method thereof. The preparation method comprises the following steps of: taking aminoacetic acid or alanine, ethyl isothiocyanate, triethylamine, water and acetone according to a molar ratio of 1-2:1-2:3-4:4-6:3-5, and mixing the aminoacetic acid or alanine, the ethyl isothiocyanate, the triethylamine, the water and the acetone, heating the mixture at the temperature of between 60 and 80 DEG C to perform reaction for 2 to 3 hours; reducing the temperature to distill off 60 to 80 percent of the triethylamine and the acetone; cooling the mixture at the normal temperature; adding 10 to 15 ml of saturated monochloroacetic acid solution into the remainder to react for 1.5 to 2 hours with stirring; and cooling to crystallize the mixture to obtain a white solid namely the inhibiting agent of a copper mineral. The inhibiting agent has high inhibiting effect on the copper mineral in a copper-molybdenum collective concentrate to reduce the content of the copper mineral in a molybdenum concentrate and improve the grade of the molybdenum concentrate. The inhibiting agent has a small used amount, and is nontoxic and pollution-free.
Owner:GUANGXI UNIV
Method for preparing cellulose and carboxymethyl cethylose by wood fibre material
InactiveCN101230547AHighlight substantive featuresSignificant progressPaper material treatmentCelluloseCarboxymethyl cellulose
The invention relates to a method, which is widely used for separating cellulose and lignin for wood fibre materials and preparing carboxymethyl cellulose. The method comprises the steps as follows: wood fibre is used as raw material; the wood fibre is swollen and basified by using alkaline alcohol solution firstly; peroxide is added, the cellulose and the lignin are separated under the microwave radiation, and high purity cellulose is prepared; and / or the alkaline alcohol solution of monochloroacetic acid is added to prepare the high purity carboxymethyl cellulose. The invention has the advantages of simple technology, environmental protection, lower cost and speediness, and has wide application prospect.
Owner:广西壮族自治区药物研究所有限公司
Preparation method of modified elm bark flocculant
InactiveCN102391442APromote degradationReduce consumptionWater/sewage treatment by flocculation/precipitationDistillationWater quality
The invention relates to a preparation method of a modified elm bark flocculant. The preparation method comprises the following steps: drying elm bark, grinding, and screening through a 50-mesh screen to get elm bark fine powder; and further using 85% alcohol to moisten, then adding strong base, performing alkalization at the temperature of 30-50 DEG C for 0.5-2.5 hours, then adding monochloroacetic acid, performing etherification at the temperature of 40-70 DEG C for 0.5-3 hours, further adding ammonium ceric nitrate and acrylamide, performing polymerization at the temperature of 50-70 DEG Cfor 1-3 hours to prepare an elm bark flocculant crude product, finally performing reduced pressure distillation and recovering the alcohol to get the modified elm bark flocculant, wherein the weight ratio of elm bark fine powder to alcohol to strong base to monochloroacetic acid to ammonium ceric nitrate to acrylamide is 1:(0.5-2.5):(0.5-5):(0.1-1):(0.001-0.0001):(0.1-1). The flocculant is low inproduction cost and biodegradable, and can prevent secondary pollution of an environment; compared with a like product, the using amount is low, and the flocculant is suitable for various types of water quality and particularly suitable for treatment of domestic sewage with high mud content, landfill leachate, back purge effluent and mud discharged from various sedimentation tanks.
Owner:TONGJI UNIV
Preparation method of polyaniline/carboxylated graphene composite material
The invention discloses a new synthesis method of a polyaniline / carboxylated graphene composite material and belongs to the technical field of composite materials. Firstly, functional modification is conducted on the surface of graphite oxide through NaOH and monochloroacetic acid to convert an epoxy group, a hydroxide group and other oxygen-containing groups on the surface of graphite oxide into carboxyl groups; secondly, graphite oxide is wrapped by a surfactant, and then the carboxyl groups are grafted onto the edge of graphite oxide together with diazonium salt, and carboxylated graphene is obtained; lastly, the carboxylated graphene and an aniline monomer are polymerized, and the polyaniline / carboxylated graphene composite material is prepared. According to the composite material, polyaniline is loaded on the surface of graphene and connected with graphene under the action of a covalent bond; the composite material has a large specific surface area, a novel structure and good electrochemical properties, mechanical properties and chemical stability, and can be used for preparing a supercapacitor, a selective absorbent for specific ions, a catalyst and the like.
Owner:NORTHWEST NORMAL UNIVERSITY
Preparation method of sodium carboxymethylcellulose
The invention provides a preparation method of sodium carboxymethylcellulose. The sodium carboxymethylcellulose is prepared from wood pulp or paper pulp through a semidry method without use of an organic solvent, and the preparation method comprises the steps of alkaline reaction: carrying out alkaline reaction on sodium hydroxide by taking water as a medium to obtain alkali cellulose; etherification reaction: implementing etherification reaction on alkali cellulose and monochloro acetic acid to obtain a crude sodium carboxymethylcellulose product; neutralization and washing: neutralizing the crude sodium carboxymethylcellulose product in an aqueous solution of alcohol and washing in alcohol; and drying treatment: drying, grinding and sieving obtained solid material to obtain sodium carboxymethylcellulose. The method disclosed by the invention has the advantages that raw materials are abundant, waste paper pulp is used as raw material and little water in the sodium hydroxide solution serves as a reaction medium in a preparation process; the preparation cost is low because of no use of organic solvents; and the product performances are controllable. The method disclosed by the invention can finish the entire preparation process in a grinder, so as to realize efficient utilization of equipment.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Preparation method for sodium carboxymethyl cellulose for foodstuff
The invention discloses a preparation method for low viscosity sodium carboxymethyl cellulose for foodstuff. Under the conditions of proper temperature and stirring, wood pulp cellulose raw materials which are pulverized and pretreated is reacted with ethanol solution of sodium hydroxide in a kneader to form soda cellulose; ethanol solution of monochloroacetic acid is added, and the temperature of the reaction system slowly rises for carrying out etherification reaction; hydrochloric acid solution is dripped to neutralize residual sodium hydroxide in the system, and reaction material is rinsed twice by ethanol and hydrogen peroxide solution; and finally, the sodium carboxymethyl cellulose can be prepared after the steps of drying and pulverization are accomplished. The method has the advantages of simplicity, low cost, high yield and convenient operation, the product is white or yellowish powder, the purity is high and is no less than 99.0 percent, and the viscosity is low and ranges from 22 to 48 Mpa.s; and besides, the sodium carboxymethyl cellulose has favorable homogeneity of substitution and good acid resistance, can be widely applied to foodstuff and beverages to be used as emulsified and suspended stabilizing agent to play the role of thickening, and can improve the mouthfeel of the foodstuff.
Owner:上海长光企业发展有限公司
Arginine-chitosan with high degree of substitution, preparation method and application thereof
InactiveCN101624427ACheap sourceHigh antibacterial activityBiocideDisinfectantsArginineStaphylococcus aureus
The invention discloses arginine-chitosan with high degree of substitution, a preparation method and an application thereof, belonging to the field of biomedical material. The arginine-chitosan with high degree of substitution takes monochloroacetic acid as 'molecular arm', to ensure that arginine is efficiently and covalently bound on the free amino group or the free hydroxyl group of chitosan, and the electropositivity of the chitosan is obviously increased, therefore the antibiosis performance is enhanced. The material is derived from shells and shellfishes of arthropods, such as shrimps, crabs and insects, shells and gristles of mollusk, and cell walls of the cells of lower plant, fungus and alga. The arginine-chitosan with high degree of substitution has the advantages that the material preparation process is simple, and the material sources are rich. The property of the clinical burn and scald prevention susceptible fungus--staphylococcus aureus of the arginine-chitosan with high degree of substitution is better than that of unmodified chitosan, and is enhanced with the increase of the degree of substitution of arginine.
Owner:HUAZHONG UNIV OF SCI & TECH
Manufacture of substantially pure monochloroacetic acid
ActiveCN101528657AHigh selectivityMeet general industrial requirementsOrganic compound preparationCarboxylic compound preparationAcetic acidHydrogen
The present invention describes a process for the manufacture of substantially pure monochloroacetic acid from a liquid chloroacetic acid mixture comprising monochloroacetic acid and dichloroacetic acid, in particular in an amount of 2 to 40 percent by weight, wherein said mixture, further mixed with a suspended hydrogenation catalyst, is mixed with hydrogen gas and the resulting mixture is brought to reaction in a reactor, which is characterized in that the reactor is a loop reactor comprising a gas and liquid recirculation system coupled via an ejector mixing nozzle, in which reactor the gas and liquid are circulated in co-current flow, and the mixing intensity introduced to the liquid phase is at least 50 W / l of liquid phase.
Owner:BUSS CHEMTECH
Use of a high purity imidazoline based amphoacetates as surface active agents
Increased foam quality and resistance to hydrocarbon defoaming for foams used in well boring and stimulation processes as well as secondary and tertiary oil recovery is obtained using imidazoline-based amphoacetates of higher purity, containing essentially negligible amounts of unalkylated amido amines, lower amounts of glycolic acid salts and monochloroacetate salts. The higher purity amphoacetates can be obtained via processes utilizing precise pH control during the reaction of imidazoline, or its open-chain derivatives, with alkylating agents, e.g. sodium monochloroacetate. These higher-purity amphoacetates contain essentially fully alkylated products and lower amounts of glycolic acid derivatives, even though a ratio of monohaloalkylate to substituted imidazoline, or its open-ring derivative, of less than 1.5:1.0 and close to 1.0:1.0 is used.
Owner:RHONDIA INC
Method for preparing diethylenetriaminepentaacetic acid
InactiveCN101607921ARealize localizationPrevent precipitationOrganic compound preparationAmino-carboxyl compound preparationSolubilityDiethylenetriamine
The invention relates to a method for preparing diethylenetriaminepentaacetic acid, which comprises the following steps of salification, condensation, acidification and purification. The diethylenetriaminepentaacetic acid is obtained by performing condensation reaction on diethylenetriamine and chloroacetic acid, and acidifying and purifying; and the preparation process has easy operation and low cost, and realizes the localization of the production of the diethylenetriaminepentaacetic acid. The diethylenetriaminepentaacetic acid prepared by the method provides a novel product which stabilizes the quality of developing solution, strengthens the fixation effect, shortens the developing time by 1.5 to 2 times, avoids sediment generation, strengthens the inoxidizability, and obviously improves the solubility and penetrability compared with the prior kit chemicals for a formula of colorful kit chemicals; and the quality of the product catches up with and surpasses that of foreign like products.
Owner:TIANJIN CHEM REAGENT RES INST
Amidobetaines for oral care applications
An aqueous composition for oral care application comprising solution of an amidobetaine of the following general Formula I is disclosed; in which R is an alkyl of coconut fatty acids, preferably hydrogenated coconut fatty acids, or a fatty acid mixture group which, on the average, corresponds to coconut fatty acids, wherein the solution has a solids content of 36% by weight, a pH of 4.5 to 6, an alkylamidopropyldimethyl amine content of not more than 0.1% by weight, and a free fatty acid content less than 0.5% by weight, sodium chloride content of 6.0% max and dimethylaminopropylamino betaine (from N,N-dimethyl amino propyl 1,3-diamine (DMAPA) and monochloroacetic acid) content of 30 ppm max, free sodium monochloroacetic acid content of 5 ppm max and free N,N-dimethylamino propyl 1,3-diamine content of 5.0 ppm max.
Owner:GALAXY SURFACTANTS
Preparation method of carboxymethyl chitosan
The invention relates to a preparation method of carboxymethyl chitosan, and particularly relates to a preparation method of the carboxymethyl chitosan with a semi-dry grinding method. The preparation method includes the steps of: 1) adding sodium hydroxide to chitosan and fully grinding the components to uniformly mix the components, adding distilled water and uniformly mixing and grinding the components for 2-3 h, and allowing the mixture to stand for 12-18 h for alkalization; 2) adding monochloroacetic acid to the alkalized chitosan, uniformly grinding and mixing the components, wherein the molar ratio of the chitosan, the sodium hydroxide to the monochloroacetic acid is 1:3.5-5.5:3; and 3) dropwisely adding distilled water and meanwhile grinding the mixture for 4-6 h to prepare a carboxymethyl chitosan initial product, washing the carboxymethyl chitosan initial product with an organic solution, and performing suction filtration and drying to prepare the carboxymethyl chitosan. The preparation method has simple operations, wherein only is a less amount of water employed as a reaction medium, so that a large use amount of organic solvent is avoided. The method is low in production cost and environment pollution and is high in synthesis efficiency and productivity.
Owner:CANGZHOU NORMAL UNIV
Hydrodechlorination method for producing high-purity monochloro acetic acid
InactiveCN105503574AMass content reductionHigh activityOrganic compound preparationCarboxylic compound preparationDistillationFixed bed
The invention discloses a hydrodechlorination method for producing high-purity monochloro acetic acid. The Hydrodechlorination method comprises the following steps: 1, filling a fixed bed reactor with a catalyst bed; 2, uniformly mixing hydrogen and a reaction mixed solution in a gas-liquid mixer, and injecting the obtained mixture into a heat exchanger to be pre-heated so as to obtain a reaction raw material; 3, discharging air in the fixed bed reactor by the nitrogen gas pump-in method, then discharging nitrogen gas in the fixed bed reactor by the hydrogen pump-in method, and injecting the reaction raw material into the fixed bed reactor for hydrodechlorination reaction so as to obtain an intermediate product; 4, performing distillation separation on the intermediate product to obtain monochloro acetic acid with the quality purity not less than 99.5%. The method continually and selectively conducts catalytic hydrogenation to remove dichloroacetic acid in the reaction mixed solution, inhibits formation of a by-product (acetic acid) in the intermediate product to be within an acceptable range, and reduces the mass content of dichloroacetic acid in the obtained by-products to be 0.5% or below.
Owner:XIAN CATALYST NEW MATERIALS CO LTD
Preparation method of carboxymethylated bagasse xylan derivative
The invention discloses a preparation method of a carboxymethylated bagasse xylan derivative, which comprises the following steps: feeding bagasse xylan, monochloroacetic acid and sodium hydroxide according to a proportion, mixing the bagasse xylan and a solvent well, taking half of the solution into a reactor after the sodium hydroxide is dissolved in the solvent, controlling the reaction pH to be 9-12, and making reaction last for 1-2 hour(s) at a temperature of 25-45 DEG C; adding a metallocene catalyst, respectively adding the monochloroacetic acid after being dissolved in the solvent and the residual sodium hydroxide solution into the reaction system, controlling the reaction pH to be 9-12, and making reaction last for 2-5 hours at a temperature of 45-75 DEG C; dropping dilute acid, mixing the solution, adjusting the pH of the reaction system to be neutral, and vacuum-filtering to obtain a rough product under hot conditions; washing the rough product with ethanol water until no Cl- is left in the rough product, washing the product with acetone for dehydration, placing the product after dehydration into a vacuum drying cabinet, drying the product for 12 hours at a temperature below 60 DEG C, and naturally cooling the product. The invention has the advantages of simple process control and high utilization rate of raw materials. The prepared carboxymethylated bagasse xylan has good water solubility, thermal stability and surface activity.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY
Iron-heavy metal nano particle/PVDF (polyvinylidene fluoride) hybrid membrane and preparation method thereof
InactiveCN103638827AAdjustable sizeEasily adjustable in sizeSemi-permeable membranesOrganic-compounds/hydrides/coordination-complexes catalystsPolychlorinated biphenylEthanol
The invention relates to an iron-heavy metal nano particle / PVDF hybrid membrane and a preparation method thereof, which belongs to the field of polymer science and technology. The method comprises the steps of dispersing the PVDF powder and polyacrylic acid (PAA) microgel into N,N- dimethylformamide (DMF), and preparing a PVDF flat base membrane by adopting a phase inversion method; soaking the PVDF base membrane in an aqueous solution containing FeCl2 to react for a given time, then soaking the PVDF base membrane in an aqueous solution containing sodium borohydride to prepare a hybrid membrane containing FeO nano particles, and then soaking the hybrid membrane in an absolute ethyl alcohol aqueous solution containing heavy metal salt to prepare a hybrid membrane containing heavy metal-iron nano particles. The hybrid membrane can be used for degrading chlorinated organic compounds such as monochloroacetic acid, chlorophenesic acid, trichloro ethylene, tetrachlormethane and polychlorinated biphenyl and has high catalytic reaction activity. The preparation method is simple and easy to control, the cost is low, and the method is applicable to the mass production.
Owner:TIANJIN POLYTECHNIC UNIV
Method for producing composite liquid mulching films from straw
ActiveCN106832430AHigh light transmittanceGood film formingClimate change adaptationPlant protective coveringsCellulosePotassium persulfate
Owner:BEIJING HAOYE TONGYU TECH
One-step method of preparing oxidated carboxymethyl starch sodium from sweet potato starch
The invention discloses a preparing method of sodium starch carboxymethyl oxide based on sweet potato starch, wherein the oxidant is 30% hydrogen peroxide; the alkalizer is sodium hydroxide; the etherifying agent is monochloroacetic acid; the solvent is anhydrous alcohol; these reactions are proceeded in the same reactor simultaneously.
Owner:NANCHANG UNIV
Method for manufacturing monochloroacetic acid based on continuous catalytic chlorination process
InactiveCN1865217AEfficient separationGuaranteed purityOrganic compound preparationCarboxylic compound preparationAcetic acidChloroacetic acids
This invention relates to a method for producing chloroacetic acid by the reaction of glacial acetic acid with the chlorine gas under the effect of the compound catalyst, followed by continuous feeding, continuous distillation and continuous chlorination catalytic reaction. Wherein: load weighted acetic acid in the chlorination reactor, and use it as standard substance, cool the cryostat to the set temperature and turn on the pump for circulation, the temperature controller controls the reactor heating temperature between 100 and 105Deg C, sequentially add 3-8% major catalyst ethyl anhydride, assistant catalyst concentrated sulfuric acid 0.8%, start the venting of the chlorine gas and start timing; then cool down the temperature using condenser low-temperature bath, the residue gas is absorbed by water and concentrated alkaline solution respectively and then discharged, timinly sample for analysis, so as to produce the chloroacetic acid with more than 99% content. This invention is characterized of mild reaction condition, high catalyst activity, specific catalyst effect, high product selectivity, 'clean' process, easy separation and environmental friendly.
Owner:JIANGSU POLYTECHNIC UNIVERSITY
Hybrid membrane capable of degrading organic chloride and preparation method of hybrid membrane
InactiveCN103611435AAdjustable sizeEasily adjustable in sizeSemi-permeable membranesOrganic-compounds/hydrides/coordination-complexes catalystsOrganic chloride compoundMicrosphere
The invention relates to a hybrid membrane capable of degrading organic chloride and a preparation method of the hybrid memrbane, belonging to the scientific and technical field of polymers. The preparation method comprises the steps of dispersing polyvinylidene fluoride powder, polyacrylic acid microgel or microspheres in N,N-dimethylfomamide, and preparing a flat base membrane by adopting a phase inversion method; then soaking the base membrane in an aqueous solution containing FeCl2 to react for a certain period of time, then soaking the base membrane in an aqueous solution containing sodium borohydride to prepare a hybrid membrane containing Fe<0> nanoparticles, and then soaking the hybrid membrane in an anhydrous ethanol solution containing noble metal salt to prepare a hybrid membrane capable of degrading organic chloride and containing iron-noble metal nanoparticles. The hybrid membrane can degrade chlorinated organic compounds including monochloroacetic acid, chlorophenesic acid, trichloroethylene, tetrachlormethane, polychlorinated biphenyl and the like, and has the advantages of high catalytic reaction activity, convenience in operation, good reuse effect and the like. Besides, the hybrid membrane also has the advantages of simple preparation method, low cost, suitability for large-scale production and the like.
Owner:TIANJIN POLYTECHNIC UNIV
Infra-red synthesis of crosslinked carboxymethyl fecula
The present invention relates to an infrared synthetic method of a cross-linked carboxymethyl starch, comprising (1) adding the monochloroacetic acid into the container, neutralizing the monochloroacetic acid by the sodium hydroxide, cooling the solution, adding the ethanol solution, dripping the chloroepoxy propane, and then adding the primary starch; (2) stirring and pre-reacting the materials in the container, then pouring the mixture out from the container, centrifuging the mixture to remove a little liquid, and then breaking the filter cake; (3) putting the broken filter cake into the infrared reactor, auto reacting at a constant temperature to obtain the modified starch, putting the starch out to crush. The invention uses the technology of infrared catalyzing and etherifying as well as heating and drying at the same time to accelerate the reaction, improve the product property, increase the viscosity of the aqueous solution of carboxymethyl starch and broaden the range of use of the product. And at the same time, the invention reduces the consumption of the organic solvent, has no need to recycle the alcohol, reduces the energy consumption, shortens the reaction time, raises efficiency, and reduces the production cost of the cross-linked carboxymethyl starch.
Owner:SOUTH CHINA UNIV OF TECH
Novel heavy metal repairing agent used for soil
InactiveCN105062494ALess drug consumptionGood removal effectOrganic fertilisersSoil conditioning compositionsFiberChloroacetic acids
The invention discloses a novel heavy metal repairing agent used for soil. A technical scheme adopted in the invention is as follows: the novel heavy metal repairing agent used for the soil is composed of the following components by weight: 10 to 20 parts of activated carbon fiber, 5 to 10 parts of citric acid, 5 to 10 parts of ethylenediaminedisuccinic acid, 10 to 15 parts of amide thiocyanate, 10 to 15 parts of chitosan, 5 to 10 parts of diatomite, 5 to 10 parts of molecular sieves, 5 to 10 parts of sodium carbonate, 5 to 10 parts of fly ash, 1 to 5 parts of chloroacetic acid and 10 to 15 parts of calcium hydroxide, wherein dosage is controlled to be 30 to 50mg / g. Compared with prior art, the novel heavy metal repairing agent used for the soil provided by the invention has the significant characteristics of small agent-consumption amount, good removal effect and an advantage of easy biodegradation.
Owner:HUNAN JICHANG SILK
Method for detecting monochloroacetic acid, dichloroacetic acid, trichloroacetic acid and sulfate radical in chloroacetic acid by ion chromatography
ActiveCN108008061AEasy to operateSave manpower and timeComponent separationIon chromatographySulfate radicals
The invention discloses a method for detecting monochloroacetic acid, dichloroacetic acid, trichloroacetic acid and sulfate radical in chloroacetic acid by ion chromatography, which comprises the following steps: preparing a mixed standard solution of four anions including monochloroacetic acid, dichloroacetic acid, trichloroacetic acid and sulfate radical, feeding the mixed standard solution intoan ion chromatography detection system to perform gradient leaching by using an AS19-HC analytical column and KOH leacheate, thus obtaining a linear equation of concentration and peak area, and calculating the contents of all components in chloroacetic acid through the linear equation. The invention has the advantages that the whole analysis process is simple and convenient, the pollution and loss is smaller, the blank and marked sample recovery rate is 96 to 99.75 percent and the method is suitable for content detection of monochloroacetic acid, dichloroacetic acid, trichloroacetic acid andsulfate radical in chloroacetic acid.
Owner:湖北省兴发磷化工研究院有限公司
Use of olive-oil-derived compounds as surfactants
The use of—olive-oil—derived compounds as surfactants is described, wherein such olive-oil-derived compounds are obtained by olive oil transesterification. Preferably, such compounds are a mixture-composed of an emollient and of anionic surfactants. As an emollient a product obtained via transesterification of olive oil with glycerine derivatives is preferably used most preferably olive oil PEG-7 esters, whereas the anionic surfactant is obtained from the emollient by causing it to react with monochloroacetic acid most preferably Na PEG-7 olive oil Carboxylate.
Owner:HALLSTAR ITALA
Textile sizing agent and preparation method thereof
ActiveCN106480728AYarn performance is stableHigh strengthAbrasion resistant fibresYarnDiphenylmethane
The invention relates to textile a sizing agent and a preparation method thereof. The textile sizing agent comprises, by mass percentage, 82-88% of main materials and 12-18% of auxiliaries. The main materials comprise nano silicon dioxide modified starch, pea starch, phosphate starch, acrylic acid, butyl acrylate, acrylamide, sodium sulfamate, diphenylmethane and protein amino acid. The auxiliaries comprise methyl alcohol, 2-naphthol, monochloroacetic acid and NaOH. The preparation method of the textile sizing includes the steps that firstly, the main materials are prepared; secondly, the main materials and the auxiliaries are evenly mixed to obtain the textile sizing agent. When the textile sizing agent is used for sizing, textiles can be subjected to sizing in the temperature range of 25-28 DEG C; after sizing, yarn is stable in performance, and strength and wear resistance are enhanced.
Owner:江苏品源知识产权运营有限公司
PVDF (Polyvinylidene Fluoride)/Fe-Pd bi-metal nanoparticle hybrid membrane and preparation method thereof
InactiveCN103611436ASemi-permeable membranesOrganic-compounds/hydrides/coordination-complexes catalystsMicrosphereNitrobenzene
The invention relates to a PVDF (Polyvinylidene Fluoride) / Fe-Pd bi-metal nanoparticle hybrid membrane and a preparation method thereof. The preparation method comprises the steps of blending polymer microspheres and PVDF to prepare a membrane, and then, loading ferrum-palladium bi-metal nanoparticles to prepare the hybrid membrane with favorable catalytic reaction activity and separation performance. By using the PVDF / Fe-Pd bi-metal nanoparticle hybrid membrane, chlorine-contained organisms such as trichloro ethylene, monochloroacetic acid, dichlorinated biphenyl, dichlorphenoxyacetic acid and the like can be subjected to reductive dechlorination reaction, and chlorine atoms in the chlorine-contained organisms are converted into hydrogen atoms. In addition, the membrane can also be used for the catalytic reduction reaction of nitro in nitrobenzene molecules such as aminonitrobenzene, nitrobenzene, methylnitrobenzene and the like so as to convert the nitro into an amino group.
Owner:TIANJIN POLYTECHNIC UNIV
Method for preparing sodium carboxymethylstarch
The invention discloses a preparation method of sodium carboxymethyl starch with hyperviscosity, which uses the pre-mixture of urea and aldehyde, to process etherification between starch and chloroacetic acid, to obtain sodium carboxymethyl starch at 72000mPa. s (2%, 25DEG C) viscosity. The inventive sodium carboxymethyl starch has high viscosity, wide application, simple preparation, low cost, and industrialization production support.
Owner:GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Degradable biological starch film capable of being repeatedly used
InactiveCN106117629AAdd surface groupsImprove water retentionPlant protective coveringsEpoxyAntioxidant
The invention discloses a degradable biological starch film capable of being repeatedly used. The degradable biological starch film is prepared from the following raw materials in parts by weight: 64 to 70 parts of dry basis corn starch, 23 to 26 parts of ethyl alcohol, 11 to 15 parts of monochloroacetic acid, 14 to 16 parts of silicon dioxide, 0.08 to 0.1 part of epoxy chloropropane, 60 to 80 parts of dimethylformamide, 3 to 4 parts of laminarin, 2 to 4 parts of glycerin, 4 to 6 parts of tributyl citrate, 0.2 to 0.3 part of antioxidants 1010, 6 to 8 parts of polyving akohol, a proper amount of 85-percent ethanol solution and a proper amount of deionized water. The prepared starch film has the full degradation performance; the environment pollution caused by conventional plastics can be avoided; no hard is caused on soil; green and environment-friendly effects are achieved; the preparation process is simple; the cost is low; the degradable biological starch film is worthy of being popularized.
Owner:MAANSHAN WUGU POULTRY IND SPECIALIZED COOP
Raspberry amido amines and betaines as a delivery system for natural antioxidants
The present invention relates to raspberry seed oil derivatives derived by the reaction of dimethyl amino propyl amine and cold pressed raspberry seed oil. This intermediate is subsequently reacted with sodium monochloroacetic acid to make a raspberry betaine. The choice of cold pressed raspberry seed oil as a raw material in the preparation of the compounds of the present invention is critical, since it has been found that the cold pressed raspberry seed oil contains antioxidants, antimicrobial compounds and which when reacted with a DMAPA result in products that deliver said actives to the skin and hair, resulting in protection of the skin and hair from environmental factors such as acid rain, ozone attack and UV degradation.
Owner:T C U S A
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