74 results about "Ammonium Cation" patented technology

The invention relates to the technical field of oilfield exploitation, and discloses a polysaccharide-containing solid-free drilling fluid and a preparation method and application thereof.The drilling fluid is formed by mixing a plugging anti-collapse agent, a polysaccharide fluid loss agent, a tackifier and the like as raw materials, the functional monomer is prepared by carrying out emulsion cross-linking polymerization under the action of an initiator, the functional monomer structure contains a large number of quaternary ammonium cations and sulfonic acid groups and also contains a biphenyl structure, and the quaternary ammonium cations can generate a strong adsorption effect with shale and silt, so that the plugging effect and temperature resistance of the drilling fluid are improved; polysaccharide is adopted as the filtrate reducer of the drilling fluid, high-viscosity colloid can be formed after the polysaccharide is dissolved in water, stratum pores are effectively blocked, filtrate invasion is reduced, the filter loss is reduced, and the polysaccharide filtrate reducer can improve the viscosity of the drilling fluid, enhance the rock-carrying capacity of the drilling fluid and improve the cleaning effect of a well hole.

The invention discloses a passivation molecule, the passivation molecule is N-acetyl piperazine halide and N-formyl piperazine halide, the two ends of the passivation molecule respectively contain ammonium cations and carbonyl functional groups, and the passivation molecule shows stable plane orientation preference due to the double-site geometric synergistic anchoring effect of'ammonium-carbonyl '. Therefore, synchronous passivation of double defects can be realized on the surface of the perovskite, and the photoelectric conversion efficiency and the stability of the perovskite solar cell can be improved.

The invention relates to a fabric flavor enhancer containing ester-based quaternary ammonium salt and a preparation method thereof. The fabric flavor enhancer containing ester-based quaternary ammonium salt comprises the following components: polyethylene glycol, an ester-based quaternary ammonium salt solution, modified silicon dioxide, polyquaternary ammonium salt and the like. The modified silicon dioxide is prepared by the following steps: carrying out a blending reaction on hydroxylated silicon dioxide and KH570 to obtain an intermediate product, then carrying out a blending reaction on triethanolamine, acrylic acid, lauric acid and sodium bromoacetate to obtain an intermediate product 2, and finally polymerizing the intermediate product, the intermediate product 2 and hydroxyethyl methylacrylate. Long alkyl chains, quaternary ammonium cations and hydroxyl are introduced into the modified silicon dioxide, so that organic matters on the surface of the modified silicon dioxide form a net-shaped structure; wherein the long alkyl chain can improve the compatibility; quaternary ammonium cations can neutralize charges and make the fabric softer and more fluffy; hydroxyl can adsorb essence, the antistatic performance and the like can be improved, and in addition, silicon dioxide and a net-shaped structure can further enhance the fragrance of the fabric.

The invention relates to a process for producing a modified isocyanate, comprising the reaction of a monomeric isocyanate in the presence of a catalyst to form a reaction mixture, wherein the catalyst comprises at least one spirocyclic ammonium salt containing at least one spirocyclic ammonium cation and at least one anion. The invention further relates to a modified isocyanate obtainable by the process according to the invention and the use thereof for producing polyurethane bodies or coatings, as well as to the polyurethane bodies or coatings. The invention further relates to one-component or two-component systems comprising the polyisocyanates having improved properties.

To provide a solid composition useful for various treatments of a hydrogen bonding material such as a biological sample.SOLUTION: A compound of formula (I) Wherein each R independently represents a linear or branched hydroxyalkyl group having one or more hydroxyl groups and an alkyl moiety having 1 to 10 carbon atoms; N represents an integer of 1 to 3. The solid composition contains the organic ammonium salt and a biological sample, wherein the mass ratio of the organic ammonium salt to the biological sample is 10:1 to 0.1:1.SELECTED DRAWING: None

The invention relates to the technical field of polyester fibers, and discloses an antistatic polyester fiber for clothing and a preparation method thereof.The polyester fiber contains an antistatic agent, a wear-resistant functional material and other additives, and the antistatic agent is prepared by modifying quaternary ammonium cations on the surface of graphene oxide; the existence of quaternary ammonium cations can enable the surfaces of graphene oxide particles to carry strong positive charges, so that the graphene oxide particles are separated from one another and are uniformly dispersed in the fiber, and the antistatic performance of the fiber is improved by utilizing the conductive effect of graphene, and the wear-resistant functional material is prepared by modifying a polyester type macromolecular substance on the surface of nano tungsten disulfide; pi-Pi conjugation can be formed between the polyester type macromolecular substance and a PET matrix, and a molecular chain of the polyester type macromolecular substance is intertwined and interwoven with a PET molecular chain, so that the nano tungsten disulfide fully plays a role, the strength of the polyester fiber can be enhanced, and the wear resistance of the polyester fiber can be improved by utilizing the self effect of the nano tungsten disulfide.

The present invention relates to the technical field of production of high-purity quaternary ammonium bases, and provides a method for preparing high-purity adamantyl trimethylammonium hydroxide and a high-purity quaternary ammonium base prepared thereby. The method for preparing high-purity adamantyl trimethylammonium hydroxide comprises the following steps: S1, material preparation: adding adamantyl trimethylammonium chloride into water to obtain an aqueous solution, and then adding an adsorbent thereto to obtain a pretreatment solution, wherein the adsorbent contains stearate ions; S2 electrolysis: adding the pretreatment solution to a raw material chamber of an electrolytic cell for electrolysis, so that adamantyl trimethyl ammonium cations enter a cathode chamber through a cation membrane and combine with hydroxide ions generated by the cathode to form adamantyl trimethylammonium hydroxide, so as to obtain a quaternary ammonium base. The method for preparing high-purity adamantyl trimethylammonium hydroxide has the advantage of improving the quality of the quaternary ammonium base product.

A hydrophilic composition that includes at least one of an organic silicon compound represented by formula (1), a condensate of an organic silicon compound represented by formula (1), and the product of reacting an organic silicon compound represented by formula (1) and metal oxide particles makes it possible to obtain a hydrophilic coating film that has excellent durability. (In the formula, the R1s each independently represent a hydrogen atom, a C1–10 alkyl group, or a C6–10 aryl group, the R2s each independently represent a C1–10 alkyl group or a C6–10 aryl group, X represents a hydrogen atom, a k-valent metal cation, or an ammonium cation, k is 1 or 2, provided that k is 1 when X is a hydrogen atom or an ammonium cation, m is an integer from 1 to 10, inclusive, and n is an integer from 1 to 3, inclusive.)

The present invention provides salts represented by the structure of Formula (I): wherein Q is an ammonium cation; and processes comprising the use of the salts in the preparation of benzodiazepinone compounds, especially bis(fluoroalkyl) derivatives thereof.

The present invention provides a CHA-type zeolite crystallized from a raw material composition containing an N,N,N-trialkylcyclohexylammonium cation as a structure-directing agent, which has a low SiO2 / Al2O3 ratio and can provide a catalyst exhibiting a practical nitrogen oxide reduction rate, a method for producing the same, and at least one of these, a nitrogen oxide reduction catalyst containing the same. [Solution] The present invention provides a CHA-type zeolite having a molar ratio of silica to alumina of less than 13 and a sodium content of 100 ppm to 2000 ppm. Preferably, such a CHA-type zeolite is obtained by a manufacturing method comprising the steps of: crystallizing a composition containing at least an N,N,N-trialkylcyclohexylammonium cation, an alumina source, a silica source, a sodium source, and water, wherein the molar ratio of silica to alumina is 20 or less and the molar ratio of potassium to sodium is less than 0.05 to obtain a crystalline product; removing the N,N,N-trialkylcyclohexylammonium cation from the crystalline product; and contacting the crystalline product with an ammonium salt-containing solution having an ammonium concentration of 1% by mass or more.

The application discloses activated carbon for reducing content of chlorate in water and a preparation method thereof, and belongs to the technical field of wastewater treatment. The application sequentially constructs a chlorinated glycidyl trimethyl ammonium cation layer for electrostatic adsorption of chlorate and a nano zero-valent iron functional layer for chemical reduction of the chlorate on the coconut shell activated carbon through bridging action and chemical grafting of polydopamine, forms a unique 'adsorption-degradation' integrated structure, greatly improves the treatment efficiency, ensures stability of functional components through chemical bonding, avoids secondary pollution, and has remarkable social, economic and environmental benefits.

The present invention provides an application of a multifunctional isocyanate cross-linking agent in the surface modification of an aromatic polyamide composite membrane. Specifically, an aromatic isocyanate cross-linking agent containing diquaternary ammonium cations, disulfobetaine, and polyether chains in its molecular structure is used to graft and cross-link the surface of the aromatic polyamide composite membrane. After the modification, the membrane surface has high hydrophilicity. The intrinsic N-H groups of the aromatic polyamide separation layer are replaced by newly formed aromatic polyamide N-H groups, which participate in the reaction with residual chlorine or chlorine oxides in seawater, effectively ensuring the long-term stability of the aromatic polyamide composite membrane structure.

The present invention relates to a method for producing a precursor for a positive electrode active material, the method comprising: a seed formation step of forming a precursor for a positive electrode active material seed by performing a coprecipitation reaction while supplying a transition metal aqueous solution, an ammonium cation complexing agent, and an alkaline compound to a reactor; and a particle growth step of growing a precursor for a positive electrode active material particle by performing a coprecipitation reaction while supplying a transition metal aqueous solution, an ammonium cation complexing agent, and an alkaline compound to a reaction solution in which the precursor for a positive electrode active material seed has been formed, wherein the supply rate of the transition metal aqueous solution and the supply rate of the ammonium cation complexing agent in the particle growth step are each more than twice the supply rate of the transition metal aqueous solution and the supply rate of the ammonium cation complexing agent in the seed formation step.

A method of preparing a positive electrode active material including preparing a composite transition metal hydroxide containing zirconium by a co-precipitation reaction while adding a transition metal-containing solution containing at least one of nickel, cobalt, or manganese, a zirconium-containing raw material, an ammonium cationic complexing agent, and a basic solution into a reactor and preparing a lithium composite transition metal oxide by mixing the composite transition metal hydroxide containing zirconium with a lithium-containing raw material and an aluminum-containing raw material to form a mixture and sintering the mixture. The lithium composite transition metal oxide includes zirconium, aluminum, and at least one of nickel, cobalt, or manganese. A positive electrode active material prepared by the preparation method is also provided.

The invention relates to a preparation method of a multi-cross-linked hydrophilic copper (II) ion imprinted polymer, which belongs to the field of functional high polymer materials and comprises the following two steps: firstly, carrying out free radical copolymerization on an allyl tertiary amine salt modified salicylaldoxime copper (II) complex, a first tonality monomer, a first cross-linking agent and a water-based initiator in water, neutralizing after reaction, filtering and drying to obtain a second tonality monomer; a cross-linked polymer containing copper ions and tertiary amine groups is obtained; the preparation method comprises the following steps: firstly preparing a quaternary ammonium cation hydrophilic cross-linked polymer, then dissolving the quaternary ammonium cation hydrophilic cross-linked polymer in an organic solvent, reacting with an unsaturated alkylation reagent to generate a polymerizable quaternary ammonium cation hydrophilic cross-linked polymer, then adding a second tonality monomer, a second cross-linking agent and an initiator for secondary copolymerization, and finally preparing an imprinted polymer in a hollow resin ball, porous membrane or fiber form through a precipitation, membrane forming or spinning process. The solid-phase anion and cation dual-extraction agent for copper (II) ion imprinting and counter ions thereof is suitable for high-selectivity enrichment and deep extraction separation of copper (II) ions in various water systems, and has the function and characteristic of simultaneously extracting counter anions.

The invention relates to a membrane (10) including: - a porous substrate (30) including two opposite main surfaces (32, 34), - a selective ion transfer layer (20) including sheets (22) of a nanomaterial extending over one of the two main surfaces (32, 34) of the porous substrate, the nanomaterial being of the formula: XMNO14, M being of the formula As3(1-y-z)Sb3yBi3z, and N being of the formula P2kAs2(1-k), y, z and k being numbers ranging from 0 to 1 with y+z less than or equal to 1, X being of the formula H3(1-x)A3x, A being an alkali, an ammonium cation or a cation derived from a water-soluble hydroxide salt or a mixture thereof, x being a number ranging from 0 to 1.

The application relates to the technical field of oilfield exploitation, and discloses a solid-phase-free drilling fluid containing polysaccharide as well as a preparation method and application of the drilling fluid. The drilling fluid is prepared by mixing plugging anti-sloughing agents, polysaccharide filtrate reducers and viscosity increasing agents, wherein the plugging anti-sloughing agent is prepared by taking acrylamide, N-vinyl pyrrolidone and a functional monomer as raw materials, and performing emulsion cross-linking polymerization under the action of an initiator; the functional monomer structure contains a large number of quaternary ammonium cations and sulfonic acid groups, and simultaneously contains a biphenyl structure; the quaternary ammonium cations can produce strong adsorption with shale and silt, thereby improving the plugging effect and temperature resistance of the drilling fluid; in addition, the polysaccharide is used as the filtrate reducer of the drilling fluid, and after the polysaccharide is dissolved in water, a high-viscosity colloid can be formed to effectively plug formation pores, reduce filtrate invasion and reduce the filtration loss; in addition, the polysaccharide filtrate reducer can improve the viscosity of the drilling fluid, enhance the rock-carrying capacity of the drilling fluid and improve the cleaning effect of a wellbore.

A process includes the steps of contacting an olefin, an alcohol and a metallosilicate catalyst to form oligomers of an alcohol ethoxylate having structure (I), wherein R1 is an alkyl, R2 is an alkyl, and n has a value of 1 to 3; and sulfating the oligomers of Structure (I) to form oligomers of Structure (II), wherein R1 is an alkyl, R2 is selected from the group consisting of an alkyl group, M is selected from the group consisting of a proton, an ammonium cation, a metal cation, a nitrogen cation, a boron cation, a phosphorus cation, triethylamine, triethanolamine, monoethanolamine and combinations thereof, and n has a value of 1 to 3, and wherein 95 mol % or greater of the oligomers of Structure (II) have an n of 1 and 5 mol % or less of the oligomers of Structure (II) have an n of 2 or greater.

The invention provides a salt represented by the structure of Formula (I): wherein Q is an ammonium cation; and a process comprising the use of said salts for the preparation of benzodiazepine compounds, in particular bis (fluoroalkyl) derivatives thereof.

A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and / or sorptive processes.

The invention discloses a novel structure molecular sieve and a preparation method thereof, and the preparation method comprises the following steps: dispersing a T element source, an A element source, an alkali source and an organic template agent R in water to obtain an initial mixture; and carrying out hydrothermal crystallization treatment on the initial mixture to obtain the novel structure molecular sieve, the T element source is selected from at least one of IVA group elements; the A element source is selected from at least one of IIIA group elements; the alkali source is at least one of an alkali metal source and / or an alkali earth group metal source; the organic template agent R is N, N, N, N ', N', N '-hexamethyl-1, 5-dimethyl bicyclo [3.3. 0] octyl diammonium cation. The preparation method of the molecular sieve provided by the embodiment of the invention has the characteristics of convenience in operation, good repeatability and high efficiency, and is particularly suitable for industrial production.

Provided is a method for liquefying ammonia gas, the method comprising: a step in which ammonia gas is supplied; and a step in which the ammonia gas and a solid ammonium salt react, whereby the ammonia gas liquefies to form liquid ammonia, and the solid ammonium salt decomposes into ammonium cations and anions.

The present invention relates to a milling process comprising the milling of a mineral composition to be milled in the presence of an adjuvant composition comprising at least one polymer (P) of formula (I), wherein: - M independently represents H+ or a cation of valence v selected from an alkali metal cation, an alkaline earth metal cation, a divalent or trivalent metal cation, an ammonium cation, or an organic ammonium cation, - if M = H, v = 1, and if “M” represents a cation, v is the valence of cation M, - R2, R3, R4, and R5 independently represent H, CH3, or –COO(M)1 / v, - m = 0, 1, or 2; p = 0 or 1;X is O, or N, and - R1 represents -[Alkyl-O]z-R6, wherein each “Alkyl” is, independently, a linear or branched C2 to C4 alkylene, R6 represents H, a C1 to C20 alkyl, a cyclohexyl or an alkylaryl, and z ≥ 40, the number of (I) and (II) units in the polymer (P) being defined by a repeating unit (A) comprising a (II) unit and “a” (I) units, with a > 0, n ranging from 1.5 to 50, and the molecular weight of the repeating unit (A) Mw(A) ≤ 6500 g / mol, the mineral composition to be milled comprising from 0% to 80% by weight of clinker, relative to the total weight of the mineral composition to be milled.

The invention relates to an ionic liquid corrosion inhibitor and a preparation method and application thereof, the ionic liquid corrosion inhibitor is composed of N, N-dialkyl secondary ammonium cations and dodecylbenzene sulfonic acid anions, and has a general formula structure shown in the following figure. When the ionic liquid corrosion inhibitor is added into mineral oil as an oil-soluble corrosion inhibitor, steel and iron materials can be prevented from being corroded in a humid and hot atmospheric environment. The ionic liquid corrosion inhibitor has the characteristics of good oil solubility, stable micelle structure and high corrosion inhibition efficiency, and can be used as a key rust inhibition component in novel antirust oil. The oil-soluble surface active ionic liquid corrosion inhibitor based on the N, N-dialkyl-secondary ammonium ions and the dodecylbenzene sulfonate ions, provided by the invention, has the characteristics of being green, non-toxic, good in oil solubility and high in corrosion inhibition efficiency.

The present disclosure relates to a carbon dioxide absorbent containing an ionic material containing a spiro ammonium cation and a hydroxide anion. The carbon dioxide absorbent according to an exemplary embodiment contains a hydroxide anion having a small molecular weight and high basicity, such that absorption performance per unit volume of the absorbent may be effectively improved. Further, the carbon dioxide absorbent according to an exemplary embodiment is soluble in water and thus may not cause layer separation problems.

The embodiments of the present disclosure relate to a carbon dioxide absorbent containing an ionic material containing a cyclic ammonium cation and a hydroxide anion. The carbon dioxide absorbent according to an embodiment contains a hydroxide anion having a small molecular weight and high basicity, such that absorption performance per unit volume of the absorbent may be effectively improved. Further, the carbon dioxide absorbent according to an embodiment is soluble in water and thus may not cause layer separation problems.

Method for introducing a photovoltaic absorber material into a photovoltaic module comprising a plurality of cells with a front and a rear substrate, wherein a) a photovoltaic absorber material in the solid state selected from the group consisting of semiconducting perovskites of the general form KM-A3 (K: cation, M: metal, A: anion), wherein K is selected from the group consisting of Cs + , CH3NH3 + , Li + , N / a + , K + , Rb + , Ag + , Cu + , Imidazolium cations, ammonium cations, pyridinium cations, formamidinium cations, guanidinium cations, thiourea cations, bipyridyls, Ca 2+ and Mg 2+ , M is selected from the group consisting of Pb, Sn, Bi, Fe, Mn, Cu, Co, W, Ti and Zn, and A is selected from the group consisting of I - , Cl - , F - , Br - , SCN- , BF4 - , OTf - , MnO4 - , O 2- , S 2- and SO4 2- by introducing a polar gas selected from the group consisting of primary, secondary and tertiary amines, amidines, pyridines, imidazoles, hydrogen iodine, hydrogen chloride or hydrogen bromide, ammonia and mixtures thereof, which is liquefied as a melt. b) the liquid photovoltaic absorber material is actively transported by means of pressure and / or temperature changes through an opening into a distribution channel connected to the individual cells and the individual cells, wherein reservoirs for receiving the photovoltaic absorber material are arranged at the end of each cell facing the distribution channel, c) further distribution of the photovoltaic absorber material in porous structures contained within the cells occurs passively via capillary forces from the respective reservoir and d) the polar gas causing the liquefaction is driven out of the photovoltaic absorber material.

Disclosed herein is a process for preparing a zeolite material having an AFX framework structure including X2O3 and YO2 via interzeolite conversion, the process including (1) providing a mixture including a first zeolite material having a non-FAU framework structure including X2O3 and YO2 and an organic structure directing agent selected from the group consisting of diquaternary ammonium cation containing compounds, and (2) heating the mixture from (1) to form a second zeolite material having an AFX framework structure including X2O3 and YO2, wherein X is a trivalent element and Y is a tetravalent element, and where the organic structure directing agent is not 1,4-bis(1,4-diazabicyclo[2.2.2]octane)butyl dihydroxide when the first material zeolite has a CHA framework structure. Further disclosed herein is the zeolite material having an AFX framework structure as obtainable or obtained from the process, and a method of using the same as a catalytically active material.

A positive resist composition is provided comprising a base polymer end-capped with a salt consisting of an ammonium cation linked to a sulfide group and a fluorinated anion. Because of controlled acid diffusion, a resist film of the composition forms a pattern of good profile with a high resolution and reduced edge roughness or dimensional variation.

The invention belongs to the technical field of lubricating oil, and particularly relates to a fixed natural gas engine oil composition as well as a preparation method and application thereof. The fixed natural gas engine oil composition is characterized by comprising the following components: base oil, an ionic liquid additive, a clearing agent, an anti-oxidation and anti-wear agent, an antioxidant and an ashless dispersant, and the ionic liquid additive is composed of N-trioctyl hexadecyl ammonium cations and dibutyl dithiophosphate anions. The fixed natural gas engine oil composition provided by the invention is suitable for a natural gas compressor power end of an oil and gas field or a gas storage, has excellent oxidation resistance and wear resistance, can meet unique requirements of equipment manufacturers on lubricating oil, and ensures stable operation of equipment.