118 results about "Ethylene glycol diethyl ether" patented technology

The invention relates the method for improving atmospheric and vacuum distillation light oil productivity. The method comprises the following step: adding the 0.001-0.1wt% addition agent with colophony into crude oil in atmospheric and vacuum distillation tower. The addition agent comprises 50-80% colophony and 50-20% organic solvent. The pH is 7.0-7.5. The organic solvent comprises ethanol or cellosolve or ethyl propyl acetone or acetate cellosolve. The method can be used in oil-extraction plant, and the light oil productivity is improved by 1.5-2.3wt%.

The invention relates to a liquid crystal orientation agent, a liquid crystal orientation film, a manufacturing method of the liquid crystal orientation film, and a liquid crystal display element. The liquid crystal orientation agent has good printing performance with respect to a substrate and good continuous printing performance and prevents swelling of printing plates. The liquid crystal orientation agent contains at last one polymer (A) selected from the group formed by polyamide acid, polyimide, polyamide acid ester and polysiloxane, a first solvent containing more than one of N-ethyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolone, 3-methoxy-N, N-dimethylpropionamide and so on, and a second solvent containing more than one of propylene glycol diacetate, diethylene glycol diethyl ether, diisoamyl ether diacetone alcohol and so on.

The invention relates to the field ship antifouling coatings, in particular to a nanometer polysiloxane nontoxic low-surface-energy ship antifouling coating for sea ships and a preparation method thereof, which are used for solving the problem of long-term nontoxicity, antifouling and corrosion on the outer bottom surface of a ship. The nanometer polysiloxane nontoxic low-surface-energy ship antifouling coating comprises the following components in parts by weight: 50-55 parts of polysiloxane resin, 1-5 parts of nanometer slurry, 5-8 parts of dimethylbenzene, 6-10 parts of butyl ester; 2.0-3.0 parts of ethylene glycol diethyl ether acetic ester, 0.3-0.5 part of a dispersing agent, 0.3-0.5 part of an antifoaming agent, 0.1-0.3 part of a flatting agent, 0.5-0.8 part of an anti-settling agent, 0.4-0.7 part of gas phase white carbon black, 15-22 parts of a pigment and 3-6 parts of a filler. The preparation method comprises the following steps of: proportionally preparing, dispersing, and grinding till the fineness is below 30 micros to obtain a component A; and mixing the component A and the component B for curing to obtain the nontoxic long-term ship sea antifouling coating. The nanometer polysiloxane nontoxic low-surface-energy ship antifouling coating is a surface protection material with extreme low surface energy, and plays roles in preventing fouling and scaling, and marine organisms are prevented from being adhered to the antifouling coating easily.

The invention discloses a method for jointly producing glycol ether and ethylene glycol diethyl ether by adopting ethylene glycol as a raw material and belongs to the technical fields of fine chemicals and catalysis. According to the method, the ethylene glycol and ethyl alcohol or ethylene glycol and diethyl ether or ethylene glycol and ethyl alcohol as well as a diethyl ether mixture are adopted as raw materials, one or more than one of substances adopting H<+1>, Al<3+>, B<3+> as positive ions and adopting SO4<2->, NO3<-1>, NO2<-1>, PO4<3-> and X<-1> (X=F, Cl, Br and I) as negative ions is adopted as a modifier and a substance for modifying a molecular sieve or a metallic oxide is adopted as a catalyst to synthetize the glycol ether and the ethylene glycol diethyl ether. The method has the advantages that the problem of reactant generating of ethylene glycol per se in the reaction of the ethylene glycol and the ethyl alcohol is solved; the glycol ether and the ethylene glycol diethyl ether can be jointly produced at the same time; the generating proportion of the glycol ether and the ethylene glycol diethyl ether can be controlled within a certain range.

The invention relates to material absorbing heavy metal in water solution and a method. The material is made through the fact that functional perssad is modified on the surface of various kinds of immobilized material, and the functional perssad is in covalent bonding with ethylene glycol tetraacetic acid (EGTA). The material can be used for remove of lead, mercury, cadmium, arsenic and other poisonous metal in the water solution, cannot change an adsorbing effect along with change of the immobilized material, and cannot change other components in the water solution. The material and the method have the advantages of being low in cost, wide in application range, strong in removing performance, good in selectivity, capable of being reproducible, and the like.

The invention discloses an organic phase electrolyte and an application thereof in a negative electrode of a redox flow battery. The organic phase electrolyte consists of active materials, a supporting electrolyte and an organic solvent, wherein the active materials are diphenyl ketone and a derivative thereof, anthrone and a derivative thereof, or dibenzoyl methane and a derivative thereof; the supporting electrolyte is selected from tetraethylammonium hexafluorophosphate, tetraethylammonium tetrafluoroborate, tetrabutylammonium hexafluorophosphate or tetrabutylammonium tetrafluoroborate; and the organic solvent is selected from acetonitrile, tetrahydrofuran, propylene carbonate, ethylene carbonate, dimethyl sulfoxide, dimethylformamide, glycol dimethyl ether or ethylene glycol diethyl ether. The organic phase electrolyte disclosed by the invention has relatively low electrochemical potential and high electrochemical property; when the organic phase electrolyte is used as the negative electrode electrolyte of the redox flow battery for assembling an organic phase redox flow battery, relatively high open-circuit voltage can be realized, so that the energy density of the battery can be improved; and meanwhile, the capacity fading of the battery can be lowered, so that the cycle life of the battery can be prolonged.

A process for controlling the content and distribution of 1,2-structure in polybutadiene features use of a tetrahydrofuran/ethanediol diether (or dibutylether) as its regulation system to make the content of 1,2-structures in 33-37% range and the uniform distribution of 1,2-structures in molecular chain.

The invention provides a preparation method for Tadalafei I type. The preparation method comprises the following steps of: heating a Tadalafei crude product to the temperature of between 50 and 140 DEG C; dissolving the Tadalafei crude product in ethylene glycol monoethyl ether, ethylene glycol diethyl ether, ethylene glycol monomethyl ether, 1,3-dioxolane or a mixed solvent of two or three thereof; cooling a system to obtain a crystal; and separating to obtain a precipitate. The preparation method has the characteristics of low solvent consumption and high yield. By the method, a pure I type Tadalafei crystal can be obtained; and by the crystallization method, the product can be purified and optical purity can be improved.

The invention provides an ultralow-temperature high-voltage chip aluminum capacitor-used electrolyte, which comprises 32% to 58% of a main solvent, 5% to 34% of an auxiliary solvent, 5.2% to 21.4% ofa solute, 2.5% to 8.5% of a flash fire booster, 0.7% to 2.5% of a hydrogen scavenger and 1% to 10% of a modified synthetic additive, wherein the main solvent is one or multiple selected from ethyleneglycol, diethylene glycol, triethylene glycol, ethylene carbonate, propylene carbonate, gamma-butyrolactone and the like; and the auxiliary solvent is one or multiple selected from diethylene glycol mono-methyl ether, diethyl carbitol, diethylene glycol ethyl methyl ether, diglycol dimethyl ether, triethylene glycol dimethyl ether, diethylene glycol monobutyl ether, dimethyl sulfoxide, sulfolane and the like. The ultralow-temperature high-voltage electrolyte has good negative temperature electric performance, higher stability and stronger applicability.

The invention discloses preparation and application of a printing and dyeing sewage treatment agent. The preparation steps are follows: adding a coconut shell powder into a phosphoric acid solution for soaking, calcinating for activation, and then adding a copper nitrate solution and an yttrium nitrate solution for modification, and calcinating to obtain modified coconut shell activated carbon; adding an organic modifier and aluminum chloride into deionized water, then adding bentonite, reacting, and grinding to obtain modified bentonite; taking modified coconut shell activated carbon powder,polymeric ferric trichloride, polyaluminum chloride, modified bentonite, corn starch, sodium acetate, polyacrylamide, polysorbate, plant fiber and ethylene glycol-bis(beta-aminoethyl ether)-N,N,N',N'-tetraacetic acid, uniformly mixing, and granulating to obtain the sewage treatment agent. The invention has the beneficial effects as follows: by the preparation method, raw materials are compounded to play a coordinated role, and printing and dyeing sewage with relatively high chroma and concentration can be continuously treated, and the treated water can be reused repeatedly; a technology for treating the dyeing and dyeing sewage by using the water treatment agent is simple, efficient, low in treatment cost and free of side effects on operators.

The invention relates to a biomass chelated modified heavy metal capturing agent as well as a preparation method and application thereof. The biomass chelated modified heavy metal capturing agent is characterized by being prepared from konjac glucomannan, water, an initiator azobis(2-methylpropionamidine)dihydrochloride V-50, N-vinylformamide, ethylene glycol-bis-(2-aminoethylether)-N,N,N',N'-tetraacetic dianhydride, potassium hydroxide and carbon disulfide; the biomass chelated modified heavy metal capturing agent is used for treating heavy-metal wastewater discharged by electroplating, smelting, mining, mineral dressing, chemical industry, machines and the like. According to the biomass chelated modified heavy metal capturing agent, complex heavy metal ions can be adsorbed through a synthesized konjac glucomannan macromolecular framework grafted novel chelated functional group; each basic unit can provide hexa-coordinate atoms to carry out strong chelating and adsorption; furthermore, sodium dithiocarbamate of a konjac glucomannan grafted sedimentation-assisting side chain and a sedimentation-assisting agent are subjected to chemical sedimentation reaction and a large aggregate is generated within a few of seconds, so that rapid sedimentation is realized.

The invention relates to a solvent method synthetic process of Si-75. Si-75 can be used for radial tyres and other rubber products and belongs to the technical field of coupling agents. The solvent method synthetic process comprises the following steps: adding sodium sulfide containing nine crystal water and powdered sulfur into methylbenzene, heating, dewatering, cooling, adding gamma-chloropropyl triethoxysilane and absolute ethyl alcohol, then adding ethylene glycol diethyl ether, heating, after the reaction, cooling to the room temperature, filtering inorganic salt and impurities for industrial salt application, transferring filtrate to a distiller, distilling solvent and foreshot under reduced pressure for recycling, and performing distillation to obtain the Si-75 when the vacuum degree is greater than or equal to 0.090 Mpa and the temperature is greater than or equal to 150 DEG C, wherein the molar ratio of the sodium sulfide to the powdered sulfur is 1:1, the weight ratio of the methylbenzene to the sodium sulfide is 1.6-2, the weight ratio of the gamma-chloropropyl triethoxysilane to the sodium sulfide is 2.00-2.06, the weight ratio of the absolute ethyl alcohol to the absolute ethyl alcohol is 1:1, and the weight ratio of the ethylene glycol diethyl ether to the methylbenzene is 0.3-0.6.

An ink composition, contains: an organic solvent, a metal pigment, and a resin, in which the organic solvent contains, based on the total amount of the ink composition, 60% by mass or more of diethylene glycol diethylether, 24 to 37% by mass of γ-butyrolactone and/or tetraethylene glycol dimethyl ether, and more than 1% by mass and lower than 5% by mass of tetraethylene glycol monobutyl ether, and the 50% average particle diameter in terms of sphere determined by a light scattering method of the metal pigment is 0.8 to 1.2 μm.

The invention provides a novel sewage treatment agent which comprises the following components in percentage by weight: 0.1-10% of ethylene glycol tetraacetic acid, 1-50% of ethylene diamine, 1-15% of pentasodium diethylene triamine pentaacetate, 1-15% of phosphate and the balance of water. The invention can effectively capture multiple metallic ions in the water body, such as Ca<2+>, Mg<2+>, iron ions, zinc ions, strontium ions and the like, and has obvious corrosion inhibition effect.

The invention relates the dyestuff agent used for commodity anti-theft, comprising 8-12% water-based ink, 52-58% deicing fluid, 2-4% auxiliary coloring agent and demineralized water. The water-based ink is made by mixing the water-soluble dye, acrylic resin, acrylic ester emulsion, dispersing agent, defoaming agent and silicone, or by water-soluble acid dye or basic dye direct dyeing. The deicing fluid is ethylene alcohol or ethyl ether or ethylene glycol monobutyl ether or ethylene glycol diethyl ether or glyceryl alcohol or triethanolamine. The auxiliary coloring agent is p-nitrophenol or o-aminoazotoluene or o-phenetidine or orasol. The product can't deposit, differentiate and coagulate for long time, and the method keeps coloring agent effective.

The invention discloses a sewage treatment agent for printing and dyeing wastewater. The sewage treatment agent is prepared from the following raw materials in parts by weight: 8-11 parts of aluminum sulfate, 10-13 parts of ferric phosphate, 3-6 parts of seaweed mud, 11-15 parts of sea-foam stone powder, 2-5 parts of nano-zinc oxide, 1-3 parts of active calcium silicate, 15-19 parts of trimethylene di(octadecyl dimethyl) ammonium-bentonite, 1-2 parts of ethylene glycol tetraacetic acid, 2-5 parts of a chitosan-graphene composite material, 24-27 parts of polyaluminum ferric chloride and 18-22 parts of polyacrylamide. The invention further discloses a preparation method of the sewage treatment agent for printing and dyeing wastewater. The sewage treatment agent disclosed by the invention is capable of effectively removing pollutants in printing and dyeing wastewater, good in treatment effect, low in treatment cost, free from toxicity and free from secondary pollution.

The invention discloses a polytetrafluoroethylene product surface treatment agent which comprises the following components in parts by weight: 50-280 parts of naphthalene, 10-50 parts of metallic sodium and 600-800 parts of a solvent, wherein the solvent is one of 1,4-dioxane, glycol dimethyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, ethylene glycol butyl methyl ether, tetraethylene glycol dimethyl ether and diethylene glycol isobutyl ether. The invention further provides a preparation method for the polytetrafluoroethylene product surface treatment agent. The polytetrafluoroethylene product surface treatment agent has the advantages of safety, environmental pollution and high treatment capability; and a polytetrafluoroethylene product obtained after treatment of the surface treatment agent is good in quality and high in qualified rate.

The invention relates to a bridge connection rail surface environmental protection coating for civil and architectural engineeringroad and bridge construction. The bridge connection rail surface environmental protection coating comprises the following components: PVC resin powder, butadiene-styrene rubber, hexamethylenediisocyanate, propargyl chloride, isothiazolinone, glass powder, soda ash, lead iodide powder, chrome green, zinc chromate, magnesium silicate powder, magnesium methacrylate, sodium polymethacrylate, spodumene powder, zinc sulfide powder, asbestos powder, nut oil, methyl acetate, soya oil acid, diethylene glycol diethyl ether, isobutyl acrylate, tripropylene glycol diacrylate, dibasyl lead sulfate, sodium diethylhexyl sulfosuccinate, epoxy silane crosslinker, sodium dioctylsulfosuccinate, sorbitol, sodium dodecyl sulfonate, alkyl diphenyl phosphate, and ethoxylated lauryl alcohol sulfate. The product provided by the invention has superior flame-retardant, acid and alkali-proof, mildew-proof and antibacterial properties, and the product properties are improved.

The invention discloses a highly efficient environment friendly waste water treatment agent which comprises, by weight, 5 to 10 parts of carboxymethylcellulose, 5 to 15 parts of sodium polyacrylate, 0.1 to 0.3 part of Amino Trimethylene Phosphonic Acid, 0.5 to 2 portions of ethylene glycol diethylether diamine tetraacetic acid, 10 to 25 parts of fly ash, 5 to 10 parts of sodium carbonate, 5 to 7 parts of Ipomoea batatas, 3 to 5 parts of sunflower straw, 10 to 15 parts of activated sludge, 5 to 7 parts of shaddock peel, 5 to 10 parts of Firmiana simplex fallen leaves, 0.5 to 1 part of jasmine straw, 0.1 to 0.5 part of methyl acetate and 50 to 180 parts of distilled water. The highly efficient environment friendly waste water treatment agent provided by the invention has stark decontamination effects to the Zn2 +, Cu2 +, Pd2 +, Cd2 +, chromium and manganese in the waster water polluted by heavy metal. The agent can effectively reduces the content of COD ad SS in the waster water; the treatment results are optimal with easily acquirable and cheap raw materials. The waster water treatment agent is prone to decompose and poses no negative impacts to the environment which make it more economically feasible and environment friendly.