40 results about "Dication" patented technology

Coupling of anodic electrochromic compounds by a covalent bond or a bridge link which provides for electronic communication between the coupled electrochromic compounds results in coupled electrochromic compounds which exhibit greater stability as well as electrochromic activity that differs from the monomeric electrochromic compounds. Extension of the absorption spectrum into the near-infrared region of the spectrum is frequently observed. The coupled electrochromic compounds are highly suitable for use in electrochromic media used to produce electrochromic devices.

Use of a composition comprising a compound of any of formulae I, II, Ila, III and Illa; or a combination thereof wherein each R₁ is independently C_7-11 alkyl; A and B are independently H or CO—R₁; R₂ is H or C_1-4 alkyl; M is a metal monocation (k=1) or dication (k=2); Y is 0 or NH; and Z is 0, NH, CH₂O or a bond; for the manufacture of a medicament for stimulating erythropoiesis. Preferably, the composition further comprises human erythroporietin.

A biologically active RNA—alkali metal—dication formulation, a pharmaceutical composition containing the complexes, and methods of producing the same. The formulation is particularly useful to introduce RNA and an attached cargo into cells allowing its biological intracellular activities: e.g. immunostimulation (immunomodulation), RNA interference or gene expression.

The invention discloses a dication asphalt emulsifier containing ethoxy as well as a preparation method and application of the dication asphalt emulsifier. The emulsifier has a structural formula shown in the specification. The preparation method of the emulsifier comprises the following steps: dissolving fatty alcohol-polyoxyethylene ether into an organic solvent, adding a catalyst, adding sodium hydroxide after the fatty alcohol-polyoxyethylene ether is dissolved, and stirring to dissolve sodium hydroxide; adding an intermediate B after 30 minutes; performing magnetic stirring at 50-70DEG C to react for 6-12 hours; cooling to the room temperature, and then performing reduced pressure distillation, washing and carrying out suction filtration; performing vacuum drying at 40 DEG C to obtain an intermediate C; dissolving the intermediate C into the organic solvent, adding a catalyst, adding sodium hydroxide after the intermediate C is dissolved, and adding epoxy propyl-trimethyl ammonium chloride to react for 6-12 hours; and performing washing, suction filtration and drying to obtain a product. The asphalt emulsifier disclosed by the invention is low in raw material price and production cost, the preparation method is simple in process and low in reaction temperature, and the temperature needed by synthetic reaction is 40-70 DEG C. In the structural formula shown in the specification, n is equal to 12, 14, 16 or 18, and m is equal to 3, 5, 7, 9, 15, 20 or 25.

The invention discloses a dication asphalt emulsifier. The molecular structure of the dication asphalt emulsifier is shown in the description, wherein when x is equal to 1, y is equal to 1 and i is equal to 0; when x is equal to 2, y is equal to 0, z is equal to 1 or 0, and i plus z is equal to 1. The dication asphalt emulsifier is prepared from the following raw material in molar ratio: 1 mol of N-Hydrogenated tallow-1, 3-diaminopropane, 6.00-13.00 mol of alcohols solvent, 1.02-3.05 mol of methyl acrylate, and 2.02-2.10 mol of sodium chloroacetate. The alcohols solvent adopts ethyl alcohol, methyl alcohol or isopropyl alcohol. The synthetic raw material of the dication asphalt emulsifier is easy to get, the production cost is low, the technology is simple, and high-temperature reaction is not required. Different types of asphalt can be emulsified, the prepared asphalt emulsifier is exquisite and uniform, the storage stability is good, dication emulsified asphalt can be prepared, and the dication asphalt emulsifier is applied to spreading of road penetrated oil layers or bonding oil as well as slurry surfacing and micro-surfacing parts, and has the characteristics of a medium breaking asphalt emulsifier and a slow breaking asphalt emulsifier.

The invention discloses Gemini dication based acid ionic liquid and a preparation method thereof. The structure of a cation part of the ionic liquid is represented by a formula I, a formula II, a formula III or a formula IV, wherein in the formula I, the formula II, the formula III or the formula IV, m represents 3 or 4, and n represents an integral number of 1-15; and the structure of an anion part is selected from one of CH3(C6H4)SO<3->, C6H4COO<->, CF3SO<3->, CH3SO<3->, CH3COO<->, CF3COO<->, HSO<4->, BF<4->, PF<6->, H2PO<4->, NO<3-> and Cl<->. The preparation method comprises the following steps of: making Gemini bi-heterocyclic alkane react with alkyl sulfoacid inner ester to generate a sulfoacid inner salt; and then making the sulfoacid inner salt react with acid to obtain the ionic liquid. The ionic liquid can be used as a substitute of a traditional liquid acid catalyst and has industrial application prospect.

The invention relates to a compound biocide suitable for industrial circulation water. Counted by the 100 percent of the total weight of the components, the components comprise 50 to 80 percent of a main agent of glutaric dialdehyde, 10 to 30 percent of a secondary agent of a dication biocide as well as 5 to 30 percent of a secondary agent of a C8 to C18 alkyl (or double dodecyl) quaternary ammonium salt. The compound biocide has the characteristics of broad spectrum, high effect, speediness, long continuous drug effect, less dosage and broad application range and the like and excellent sterilizing performance when the pH value ranges from 7.0 to 9.5; the compound biocide also has excellent penetrability, and can effectively peel off the slimebiological fouling in a system and effectively prevents under-deposit corrosion and simultaneously the compound biocide suitable for industrial circulation water can effectively ease the problems of eutrophy, fast bacteria and algae propagation and device corrosion in the water quality caused by the leakage oil products in the system, thus being particularly suitable for the industrial circulation water with higher oil stain content.

The invention provides a method for extracting and separating a phenolic compound in an oil-phenol mixture by using quaternary ammonium dication liquid. The method comprises the following steps: adding a given amount of quaternary ammonium dication liquid extracting agent into an oil-phenol mixture, stirring at given temperature, enabling the phenolic compound in the oil-phenol mixture to form a deep-eutectic solvent with the quaternary ammonium dication liquid extracting agent, and separating from an oil phase, thus separating the phenolic compound in the oil-phenol mixture, wherein by virtue of a liquid separation method, the deep-eutectic solvent is separated, then a back-extractant is added into the deep-eutectic solvent, the quaternary ammonium dication liquid extracting agent is precipitated in a solid form, and the quaternary ammonium dication liquid extracting agent is obtained by virtue of filtering and separating can be repeatedly used; the phenolic compound in the back-extractant is recovered in a distilling method, and the back-extractant is repeatedly used. The quaternary ammonium dication liquid extracting agent used in the method is environmentally friendly, good in heat stability, not soluble in the oil phase, high in extraction rate and reusable.

The invention relates to a method for preparing a core-shell nanometer antibacterial polymer microsphere through emulsion polymerization by using a polymerizable Viologen surfactant. The method uses a Viologen dication polymerizable surfactant which is provided with a surface activity functional group, a polymerizable double bond functional group and an antibacterial functional group as a comonomer to perform stable emulsion polymerization in water or a reaction medium of the water and an organic solvent, and prepares the nanometer core-shell polymer microsphere with a surface covalent bond connected with an antibacterial group through one-step charging or sectional charging. The preparation method is simple, the nanometer polymer microsphere can be obtained by the method, the shell layer of the microsphere has antibacterial function, and the surface of the microsphere is clean with uniformly distributed particle sizes, thus the method is applicable in the fields of biological medicines, environmental protection, water treatment and the like.

The invention relates to a dication polyacrylamide flocculating agent and preparation method thereof. More than two-thirds of structural units of flocculating agent copolymer are cationization acrylamide, and methyl carbonate quaternary amine ions are introduced into the copolymer. The flocculating agent of the invention has higher hydrophobic nature, favorable flocculation effect, acid resistance, alkali resistance and wide range of suitable pH value, and can be used for treating high concentration dyeing and desizing wastewater; and besides, the inventory rating of the flocculating agent is low, and therefore the use cost can be reduced. The preparation method of the invention simultaneously utilizes the two active groups, namely side-chain amido of acrylamide to generate methyl carbonate quaternary ammoniated cationic acrylamide monomer by Menez reaction, a main chain and trimethyl acyloxy ethide trimethyl ammonium chloride cationic monomer are copolymerized, and the method of environmentally friendly one pot boiling is adopted; and the operation is simple, the cost is low, and the obtained flocculating agent has favorable stability and flocculation effect.

The invention discloses an imidazole high-acidity ionic liquid catalyst, which is imidazole dication high-acidity ionic liquid. The ionic liquid catalyst has the advantages of being high in acid density, high in catalytic activity, short in catalyst reaction time, mild in reaction condition, simple in process, capable of being recycled, less in loss in use and the like, thereby being capable of being applied to preparation of biodiesel. Further, the ionic liquid catalyst is high in reaction speed, greatly shortens reaction time and mild in reaction condition.

The invention discloses a method for preparing a resin with good low temperature fluidity, which is implemented by the steps of: 1) mixing cut fraction rich in styrene-indene with dication catalyst and reacting, adding methanol after finishing reaction, standing for layering, taking the liquid of the lower layer, and distilling to obtain fluid sticky liquid; 2) mixing octyl group phenols resin, rare earth chloride, methanol and toluol and reacting when stirring, and removing methanol and toluol to obtain solid resin; and 3) mixing the sticky liquid, the solid resin, alkyne resin and white carbon black for reacting to obtain the resin with good low temperature fluidity. The inventive resin has good low temperature fluidity and stickiness, is applicable for production of wedge, and can realize bonding of tyre body and tyre surface; the vulcanization of wedge is not influenced in the process of vulcanizing the tyre in overhauling, the low temperature fluidity of the middle wedge is good, self-stickiness and mutual stickiness are excellent, and the inner quality of the tyre in overhauling is improved.

The invention discloses dication ionic liquid. The structural formula of the dication ionic liquid is shown in the specification, wherein n is equal to 1 or 2, and R1 is equal to CH3 or CH2CH3. The invention further discloses a method for catalytically synthesizing cyclic carbonate through the dication ionic liquid. Specifically, cyclic carbonate is synthesized in the mode that CO2 and an epoxy compound are subjected to a cycloaddition reaction. The problems that currently, in the process of synthesis with CO2 and the epoxy compound, CO2 activation is difficult, the activity of a catalyst is not high, a co-catalyst and an organic solvent are used, and reaction conditions are severe are solved. The dication ionic liquid and the method have the advantages that the synthesis process is simple, the activity of the catalyst is high, the catalysis conditions are mild, environmental friendliness is achieved, no other organic solvents or co-catalysts are used, and the catalyst does not containmetal.

The invention provides a dication quaternary ammonium complex iodine disinfectant. The dication quaternary ammonium complex iodine disinfectant comprises the following ingredients in parts by weight: 10-200 parts of organic amine, 5-100 parts of trimethylamine hydrochloride, 5-150 parts of epoxy chloropropane, 1-50 parts of catalyst, 1-10 parts of buffering agent, 10-100 parts of leveling agent, 10-100 parts of iodine and 10-200 parts of de-ionized water. The preparation process of the disinfectant provided by the invention is simple and convenient; and the prepared disinfectant has the advantages of high efficiency, low toxicity, broad spectrum and less residue. The disinfectant provided by the invention can be widely applied to water disinfection of aquaculture and disease prevention of aquatic animals.

The invention relates to reactive dye containing iso-dication groups as well as a preparation method and an application of the reactive dye. The preparation method comprises steps as follows: pyridinequaternary ammonium salt and four aromatic quaternary ammonium salts corresponding to R1 are synthesized; cyanuric chloride and pyridine quaternary ammonium salt react, and a primary condensation product is obtained; an intermediate corresponding to R2 and the primary condensation product react to obtain a secondary condensation product; the secondary condensation product and diazonium salt of quaternary ammonium salt of the intermediate corresponding to R1 are subjected to a coupling reaction, salting out and filtration are performed, and the reactive dye is obtained. The reactive dye containing iso-dication groups has good water solubility, is novel in structure and high in fixation rate and can be used for salt-free and low-alkaline dyeing of cotton fiber, meanwhile, and a solution isprovided for dyeing of wool and acrylic blending with a one-bath process.

The invention relates to a quaternary ammonium salt type surfactant containing symmetric heterocycle in the technical field of petroleum production engineering, and a synthesis method of the surfactant. According to the quaternary ammonium salt type surfactant containing symmetric heterocycle, long-chain fatty acid is used to react with 3,5-diamino-1,2,4-triazole to generate a yellow solid which is a fatty acid amido intermediate A containing heterocycle; and then the fatty acid amido intermediate A containing heterocycle is used to react with 1,3-dichloro isopropanol to generate the quaternary ammonium salt type surfactant containing symmetric heterocycle. The surfactant molecular structure contains triazole symmetric heterocycle and has corrosion inhibition; the surfactant molecular structure further contains quaternary ammonium salt dication and four hydrophobic chains to thicken acid liquor; and therefore, one surfactant has two functions at the same time, and the aim of reducing the cost of acid liquor for oil field acidification is finally achieved.

The invention discloses solid acid catalysts with dual-center ionic liquid structures. The cations of the solid acid catalysts with the dual-center ionic liquid structures are dications with symmetrical structures and containing nitrogen heterocyclic compounds, and the anions thereof are inorganic or organic strong acid anions. The solid acid catalysts with the dual-center ionic liquid structures, provided by the invention, have relatively high acidity, are good in stability, and can meet requirements for synthesis of most organic acid esters. The preparation process of the solid acid catalysts with the dual-center ionic liquid structures is simple, the product yield and purity are high, no byproduct is produced, and the synthesis cost is low; the solid acid catalysts with the dual-center ionic liquid structures are quite suitable for industrial production. The invention further discloses the preparation method of the solid acid catalysts with the dual-center ionic liquid structures.

An ether-bridged dication is provided with two monovalent cations bonded via a carbon chain having ether group(s). The ether-bridged dication, monovalent cations, and anions are contained together within an ionic liquid electrolyte which is applied to a charge storage device. The ether-bridged dication, the ionic liquid electrolyte, and the charge storage device have operational abilities at room temperatures or below, and a reachable working potential of 3.5 V.

The invention discloses a non-oxidized seawater bactericide, which comprises the following components in part by weight: 30 to 80 parts of poly(hydroxypropyl) polyene polyamine, 10 to 30 parts of dodecyl triphenyl phosphorus chloride, 10 to 20 parts of dication quaternary ammonium salt and 5 to 10 parts of isopropanol. A method of a production process comprises the following steps of: adding the poly(hydroxypropyl) polyene polyamine and the isopropanol into a reaction kettle; slowly heating to 80 DEG C; stirring for 30 minutes; adding the dodecyl triphenyl phosphorus chloride; continuously stirring at the constant temperature of 80 DEG C for 30 minutes; adding the dication quaternary ammonium salt; stirring for 10 minutes; and standing and naturally cooling until material temperature is between 20 and 35 DEG C. The production process is simple, an operation process is simple and convenient, and safety performance is very high.

A process is disclosed for producing small crystal, high surface area crystalline materials having the MFI and/or MEL framework-type, designated as EMM-30, using as a structure directing agent tetrabutyl ammonium cations and/or tetrabutylphosphonium cations, or l,5-bis(N- tributylammonium)pentane dications, and/or l,6-bis(N-tributylammonium)hexane dications. The compositions made according to thatprocess, as well as the various dication compositions themselves, are also disclosed.