35results about How to "The synthesis process is simple and fast" patented technology

The invention discloses a chemical agglomeration promoter for removing fire coal fine particulate matters. The chemical agglomeration promoter is prepared from poly-dimethyl-diallyl-ammonium chloride, sorbitan fatty acid ester and water, wherein the mass percent of poly-dimethyl-diallyl-ammonium chloride is 0.001%-0.01%; and the mass percentage of the sorbitan fatty acid ester is 0.001%-0.1%. The invention also discloses an application method of the chemical agglomeration promoter. The chemical agglomeration promoter is capable of effectively promoting fine particles in a gas flue to agglomerate and flocculate to form large particles, and carrying out integral removal on heavy metals in a flue gas; the efficiency of a dust remover for removing fine particulate matters is improved; and the environment problem is effectively relieved.

The invention provides a hollow microsphere molecular sieve, a preparation method thereof and application thereof to arene preparation through methyl alcohol conversion. The hollow microsphere molecular sieve provided by the invention comprises a shell and a macroporous structure, wherein the shell is formed by stacking ZSM-5 crystalline grains, and the macroporous structure is formed by being wrapped with the shell. The hollow microsphere molecular sieve is of a multi-stage pore structure. Multi-stage pores comprise macropores, mesopores formed by stacking the ZSM-5 crystalline grains, and micropores of the ZSM-5 crystalline grains. The hollow microsphere molecular sieve provided by the invention is of the multi-stage pore structure, and can be used as a catalyst for reaction during arene preparation through methyl alcohol conversion; reactant molecules enter an inner space through the shell, and generated products are further diffused through the shell; compared with other molecular sieves, the reactant molecules are subjected to a larger number of multi-stage reactions on hollow microspheres, and accordingly the selectivity of arene is improved; and since the mesopores formed by stacking the ZSM-5 crystalline grains and the internally hollow macropores in the shell are beneficial to diffusion of the products, the service life of the catalyst is greatly prolonged.

The invention provides a hollow microsphere molecular sieve. The hollow microsphere molecular sieve comprises a shell formed by stacking MFI molecular sieve grains, and a macroporous structure wrapped by the shell. The hollow microsphere molecular sieve has a hierarchical pore structure, and hierarchical pores include macropores, mesopores formed by stacking MFI molecular sieve grains, and micropores of MFI molecular sieve grains. Silicon and oxygen serve as framework elements of the molecular sieve. The invention further provides a preparation method of the hollow microsphere molecular sieve. According to the preparation method, a templating agent is used in cooperation with an EDTA chelating agent, the pH value of the system is maintained at 8-11, hollow microspheres are formed through the electrostatic interaction between EDTA4- and positive ions of the templating agent, gel is wrapped in the hollow microspheres, and hierarchical pore hollow microspheres are obtained through hydrothermal crystallization and modification. The synthesis process is simple and fast, it is not needed to prepare seed crystals in advance, product separation is easy, and the preparation method is suitable for industrial production.

The invention provides a chemical agglomeration promoter.The chemical agglomeration promoter is prepared from, by mass, 0.001%-0.01% of polyethyleneimine, 0.001%-0.1% of tween-80 and the balance water.The chemical agglomeration promoter is wide in raw material source, low in price, environmentally friendly, simple in chemical composition, simple and fast in synthesis process and free of harm to the environment; the agglomeration effect on fine particulate matter is significant, and the fine particulate matter emission of a coal-fired power plant can be reduced by 60% or above; besides, the chemical agglomeration promoter does not contain acid matter, and thus corrosion to flue equipment can be avoided; moreover, as most toxic heavy metals are gathered on fine particulate matter, heavy metals can be integrally removed with the chemical agglomeration promoter.

The invention belongs to the technical field of advanced nanocomposites, and particularly discloses a high-dispersity hollow anti-bell ringing type copper / silicon dioxide core-shell nanoparticle and a preparation method thereof. The preparation method comprises the following steps: synthesizing a copper nanoparticle with uniform morphology and size by adopting a high-temperature decomposition method; coating a layer of uniform silicon dioxide on the surface of the nanoparticle by using a cyclohexane / ammonia water reversed-phase micro-emulsion method so as to form a copper / silicon dioxide core-shell structure; and finally carrying out processing under an alkaline condition by utilizing a hydrothermal method so as to obtain the high-dispersity hollow anti-bell ringing type copper / silicon dioxide core-shell nanoparticle. The hollow anti-bell ringing type nanoparticle has the advantages of being high in copper metal dispersity, uniform in morphology and high in specific surface area, and has important application prospect in the fields of adsorptive separation and catalysis. According to a synthesis method provided by the invention, the control carried out on the specific surface area and copper dispersity of the hollow anti-bell ringing type core-shell nanoparticle can be realized. The synthesis raw materials are easy to get and the method is simple and rapid, so that large-batch synthesis can be realized.

The invention discloses a synthetic method of an alpha-quaternary carbon-contained alpha, beta-diamino acid derivative. The alpha-quaternary carbon-contained alpha, beta-diamino acid derivative is obtained by treating a diazo compound, an imine and a phosphoramidate as raw materials, chiral phosphoric acid and rhodium acetate as catalysts, an organic solvent as a solvent and a molecular sieve as a water absorbent, and carrying out a catalytic reaction. The synthetic method of the invention has the advantages of simple and easily available raw materials, simple and safe operation, high atom economy, high yield and high selectivity. The alpha-quaternary carbon-contained alpha, beta-diamino acid derivative obtained through the method of the invention, which has a diverse compound skeleton, has a very important meaning to a new medicine screening and preparing technology.

The invention belongs to the technical field of material science and electro-catalysis and specifically relates to a method for compounding a ferronickel hydrotalcite nano-array compound structure byutilizing an in situ self-sacrificing template process. The method comprises the following steps: taking a ferro-nickel alloy as an electrode substrate and a reaction template; growing the ferronickelhydrotalcite nano-array compound structure, served as a catalyst for oxygen evolution reaction of electrolyzed water, on the ferro-nickel alloy by adopting the method for in situ self-sacrificing thetemplate. When the ferro-nickel alloy with the grown ferronickel hydrotalcite nano-array compound structure is placed into an electrochemical three-electrode test system and is used as an oxygen evolution electrode of electrolyzed water in an alkaline medium, efficient proceeding of oxygen evolution reaction of electrolyzed water under lower impressed voltage with high stability can be guaranteed. The preparation process according to the invention is simple; the required raw materials are low-cost and extensive in source; the method is cost-saving, is beneficial to industrial production and has a bright application prospect.

The present invention relates to a method that synthesizes the silicone prepolymer containing double bond and various chain segments, in sequence, by the cohydrolysis of silane containing hydrogen, silane containing chloro and alkoxy silane, and the reaction with allyl compounds under catalytic agent. The prepolymer will be copolymerized with (meth)acrylate to acquire the surface hydrophobic strength- controllable silicone modified acrylic resin composite. The composite is water soluble, and has good adhesion, gloss, softness, hydrophobicity and weatherability; it is regulable for the hydrophobic, antifouling and scrubbing resistant abilities of the composite surface, according to demands. Moreover, the product is simple in its production process, low in its cost, and very friendly to environment, which can be used in various fields such as leather, textile, construction and ship.

The invention discloses a F-18 tagged P2X7 receptor imaging agent which is a compound 18F-{(2-chloro-3-trifluorophenyl)(1-(pyrimidin-2-yl)-6,7-dihydro-1H-[1,2,3]triazolo[4,5-c]pyridin-5(4H)-yl)methanone shown as formula I. The P2X7 receptor imaging agent is suitable for identifying and diagnosing pulmonary inflammation and tumors.

The invention discloses a method for synthesizing a clenbuterol hydrochloride molecularly imprinted polymer. The method comprises the following step: by using clenbuterol hydrochloride as a template molecule and alpha-methacrylic acid as a functional monomer and performing interaction in the form of hydrogen bonds, adding a crosslinking agent N,N-methylene-bis acrylamide and an initiator ammonium persulfate to perform free radical copolymerization, thereby obtaining the clenbuterol hydrochloride molecularly imprinted polymer, wherein the mole ratio of the template molecule, functional monomer and crosslinking agent is (117-274):(1-300):(30-90). The clenbuterol hydrochloride molecularly imprinted polymer has the advantages of simple and quick synthesis process, low cost, high specificity and favorable stability, can be combined with a test paper method to prepare a test paper strip, and is used for trace on-line detection of clenbuterol hydrochloride.

The invention discloses benzo dioxy heterocyclic derivatives with optical activity and a preparation method and application thereof, and the products are synthesized by reaction of four components of a diazo compound, an ortho-substituted aromatic aldehyde, an arylamine and water under catalysis of rhodium acetate, chiral phosphoric acid and an alkali. The raw materials are cheap and easily obtained, three chiral carbons can be simultaneously constructed, the preparation route is short, the operation is simple and safe, the reaction condition is mild, the atom economy is high, the selectivity is high, and the polysubstituted benzo dioxy heterocyclic derivatives can be conveniently obtained, and diverse compound skeletons can be provided for use in screening of new drugs and pharmaceutical fields.

The invention discloses a preparation method of multi-substituted indanol derivatives. The diazo compound, alcohol and o-formyl chalcone are used as raw materials, a metal catalyst is used as a catalyst, an organic solvent is used as a solvent, and a molecular sieve is used as a water absorbent; and the multi-substituted indanol derivatives are obtained by one-step reaction. According to the preparation method disclosed by the invention, the raw materials are easily available, the operation is simple and safe, and the method is suitable for industrial production.

The invention relates to a rotation, confluence and agglomeration tower and a method for agglomeration dedusting by adopting the rotation, confluence and agglomeration tower. The rotation, confluence and agglomeration tower comprises a cylindrical tower body, at least one flow guide pipe used for leading in flue gas is arranged on the lower portion of the tower body, each flow guide pipe is connected with the tower body in a tangent manner, and a flue gas outlet is arranged at the top of the tower body; multiple spray layers used for blowing and jetting agglomeration liquid are arranged in the tower body from bottom to top in sequence, and a rotational flow device used for enabling flue gas to form a turbulence state after passing is arranged at least between the two bottommost spray layers. Good agglomeration and dedusting effect can be achieved, subsequent dedusting burden is alleviated effectively, the subsequent dedusting process can even be cancelled, the national flue gas emission standard is met, and meanwhile equipment investment and running cost are lowered.

The invention relates to a method for preparing a series of novel phosphinimine ruthenium carbine complexes with high thermal stability and application of the novel phosphinimine ruthenium carbine complexes to the metathesis reaction of olefin, and mainly overcomes the disadvantages that the asymmetric transformation exists and the reaction still cannot be effectively realized at high temperature in the metathesis reaction for forming tetrasubstituted olefin under the catalysis of a ruthenium carbine complex, the ruthenium carbine complex is not applicable to basic functional groups (such as NH2- and CN-) and the initiation rate and increment rate are low in the previous literature. The problems can be well solved by adopting the technical scheme of metal ruthenium carbine complex ligands which have a general formula of Ru(=CHAr)Cl2L(R<1>P=NR<2>) and the synthesis thereof, wherein Ar is (C6-C14) aryl; L is an uncharged electron donor, namely a phosphino or aza five-membered ring carbine ligand; R1 is phenyl, cyclohexyl, tert-butyl, ortho-pyridyldiphenyl, and ortho-furyldiphenyl; and R2 is aryl, pyridyl and picolyl.

In the present invention there is provided an MnO2 anode with improved electrochemical properties, and a method of preparation of an anode, wherein there anode comprises a substrate at least partially coated with MnO2 nanosheets (MnNSs) forming additive free MnO2 thin films. The method includes providing MnO2 nanosheets (MnNSs) suspension with diameters less than 50 nm; printing the MnNSs suspension on substrates to form MnO2 thin films (MnTFs); and annealing the MnTFs at 260-320° C. for at least 100 minutes. Energy storage device comprising the MnO2 anode such as a Na-ion cell, and a Li-ion cell are also described.

The invention relates to a preparation method of α, β-diamic acid derivatives with α-position quaternary carbon. Using diazo, alkoxyamide, and imine as raw materials, rhodium acetate, chiral phosphoric acid and acid additives as catalysts, and molecular sieves as water-absorbing agents for one-step asymmetric catalysis, different substituted chiral phosphoric acids can catalyze reactions selectively including ( 2R, 3R)-trans-IIA, (2R, 3S)-cis-IIB, (2S, 3S)-trans-IIC and (2S, 3R)-cis-IID target product α-position quaternary carbon α,β-Diamino acid derivatives. The application of the present invention is to use II as a raw material to prepare a pharmaceutically active intermediate (imidazoline derivative IV containing quaternary carbon). The invention has the advantages of simple and easy-to-obtain raw materials, simple and safe operation, high atom economy, high yield and high selectivity. The method can conveniently and simultaneously obtain the α,β-diamine derivatives of the cis or trans α-position quaternary carbon, provide a variety of compound skeletons, and have very important significance for new drug screening and pharmaceutical technology.

The invention discloses organosilicone prepolymer. A structural formula of the organosilicone prepolymer is shown as follows, wherein R1: CH3, C2H5 and C6H5, R2: CH3, C2H5, C6H5, and n=0, 1, 2, 3, 4,5. The invention further discloses organosilicone-acrylic resin prepared therefrom and a preparation method and application thereof.

The invention discloses a co-catalyzing preparation method of alpha, betal-diamino acid derivative of alpha-quaternary carbon. The alpha, betal-diamino acid derivative of alpha-quaternary carbon is synthesized by a reaction of three components: aryl acetic acid ester diazonium, arylamine, and sulfamide imine under co-catalysis of rhodium acetate squaric acid amide or metal magnesium salt. The alpha, betal-diamino acid derivative of alpha-quaternary carbon comprises a threo form alpha, betal-diamino acid derivative of alpha-quaternary carbon and an erythro form alpha, betal-diamino acid derivative of alpha-quaternary carbon shown as formula (II). The raw material provided by the invention is low in cost and easily available, and two chiral carbons are constructed at the same time by a one-pot method. The method is short in preparation line, simple to operate, mild in reaction condition, easy to synthesize the catalyst, high in atomic economy, high in yield and free from environmental pollution, and the threo form or / and the erythro form alpha, betal-diamino acid derivative of alpha-quaternary carbon can be conveniently obtained at the same time. A diversified compound framework is provided, and the method has important meaning on new medicine screening and pharmaceutical preparation technology.

The invention belongs to the field of heavy metal adsorbents, and specifically discloses a heterogeneous condensation adsorbent for heavy metal adsorption, a preparation method and application thereof. The heterogeneous coagulation adsorbent comprises the following components in terms of mass percentage: 0.005% to 0.01% of polyacrylamide, 0.0005% to 0.001% of calcium chloride, 0.001% to 0.01% of coconut oil fatty acid diethanolamide, The balance is water. In the heterogeneous coagulation adsorbent provided by the present invention, calcium ions can promote the heterogeneous adsorption of gaseous heavy metals to be fixed on the heterogeneous coagulation adsorbent; at the same time, polyacrylamide dissolved in water can be absorbed between fine particles enriched in heavy metals Electrical neutralization occurs, and two or more particles are coagulated by "bridging" to improve the removal efficiency of fine particle heavy metals; in addition, coconut oil fatty acid diethanolamide can reduce the surface tension of water , thereby increasing the solubility of organic compounds.

The invention relates to a swirl-convergence agglomeration tower and a method for agglomeration and dust removal using the swirl-convergence agglomeration tower. The swirl-convergence agglomeration tower includes a cylindrical tower body, and at least one guide pipe for introducing flue gas is provided at the lower part of the tower body. The diversion pipe is connected tangentially to the tower body, and the top of the tower body is provided with a flue gas outlet; the tower body is provided with multiple spray layers for spraying the agglomeration liquid in sequence from bottom to top, at least two spray layers at the bottom A swirl device is provided between them to form a turbulent state after the flue gas passes through. The invention can achieve better agglomeration effect and dust removal effect, effectively reduce the subsequent dust removal burden, and even cancel the subsequent dust removal process, and reduce equipment investment and operation cost while meeting the national flue gas emission standard.

The present invention relates to a kind of flat mycin analogue and its preparation method and application, by taking flatmycin as raw material, taking acid as catalyst, using water and / or alcohol as solvent, through heating reaction to obtain flatmycin acid analogue of the present invention things. The invention has short preparation route, safe and simple operation, is convenient for obtaining platymycin analogues, provides diverse compound skeletons, and can be widely used in the fields of new drug screening and pharmacy.

The invention discloses a specific resistance conditioning agent used for lowering fly ash resistivity. The specific resistance conditioning agent is an aqueous solution containing alkali metal salt; the alkali metal salt comprises sodium acetate and dipotassium phosphate. The invention discloses the application and a using method of the specific resistance conditioning agent. By means of the specific resistance conditioning agent, the specific resistance of fly ash can be effectively reduced, and the removal efficiency over the fly ash of an electrostatic dust collector is improved.

The invention discloses a Raman detection method for trace CO by taking Au (at) M (at) CeO2 as an enhanced substrate, M is Pt or Pd, and the Raman detection method specifically comprises the following steps: (1) synthesizing core seed Au (at) M core-shell structure nanoparticles; (2) centrifugally cleaning the inner core seeds, and dispersing the inner core seeds in a surfactant CTAB (Cetyltrimethyl Ammonium Bromide) solution; (3) preparing Au (at) M (at) CeO2 core-shell structure nanoparticles; (4) washing and concentrating the Au (at) M (at) CeO2 core-shell structure nanoparticles, and dripping the Au (at) M (at) CeO2 core-shell structure nanoparticles on a clean silicon wafer; (5) applying different reaction atmospheres to carry out in-situ Raman spectrum research to detect SERS signals; and (6) analyzing and comparing the SERS signal obtained in the step (5) to obtain the catalytic reaction process on the multilayer core-shell nanostructure. According to the invention, cerium oxide is modified on the surface of the Au (at) M core-shell nanostructure to construct interface existence of metal-CeO2, so that the existence of trace CO in a to-be-detected system can be sensitively detected, and CO can be easily desorbed by switching into oxygen, so that the substrate can be repeatedly and stably used for multiple times.

The invention provides a hollow microsphere molecular sieve, a preparation method thereof and application thereof to arene preparation through methyl alcohol conversion. The hollow microsphere molecular sieve provided by the invention comprises a shell and a macroporous structure, wherein the shell is formed by stacking ZSM-5 crystalline grains, and the macroporous structure is formed by being wrapped with the shell. The hollow microsphere molecular sieve is of a multi-stage pore structure. Multi-stage pores comprise macropores, mesopores formed by stacking the ZSM-5 crystalline grains, and micropores of the ZSM-5 crystalline grains. The hollow microsphere molecular sieve provided by the invention is of the multi-stage pore structure, and can be used as a catalyst for reaction during arene preparation through methyl alcohol conversion; reactant molecules enter an inner space through the shell, and generated products are further diffused through the shell; compared with other molecular sieves, the reactant molecules are subjected to a larger number of multi-stage reactions on hollow microspheres, and accordingly the selectivity of arene is improved; and since the mesopores formed by stacking the ZSM-5 crystalline grains and the internally hollow macropores in the shell are beneficial to diffusion of the products, the service life of the catalyst is greatly prolonged.

The invention discloses a preparation method of multi-substituted indanol derivatives. The diazo compound, alcohol and o-formyl chalcone are used as raw materials, a metal catalyst is used as a catalyst, an organic solvent is used as a solvent, and a molecular sieve is used as a water absorbent; and the multi-substituted indanol derivatives are obtained by one-step reaction. According to the preparation method disclosed by the invention, the raw materials are easily available, the operation is simple and safe, and the method is suitable for industrial production.

The invention relates to a method for synthesizing ultrahigh-viscosity water-soluble block polyether by a one-pot process, which comprises the following steps: placing a compound containing reactive hydrogen in a reaction kettle, adding a phosphazene catalyst to catalyze nucleophilic substitution reaction between the reactive hydrogen and initial polyether, vacuumizing, and heating to 130-150 DEG C in the reaction kettle; introducing a mixture of ethylene oxide and propylene oxide into the reaction kettle, and carrying out nucleophilic substitution reaction on the mixture and reactive hydrogen to generate polyether polyol; introducing ethylene oxide into the reaction kettle to generate ethylene oxide-terminated polyether polyol; after the reaction is finished, aging until the pressure in the reaction kettle is unchanged; introducing an isocyanate cross-linking agent; reacting the primary hydroxyl group in the ethylene oxide terminated polyether polyol of the primary hydroxyl group to generate macromolecular polyether polyol; and vacuumizing to remove the solvent to obtain the ultrahigh-viscosity water-soluble block polyether. The alkali metal content in the polyether is reduced, the molecular weight of the polyether is improved, and the viscosity of the water-soluble block polyether is increased.

The invention discloses a synthetic method of a polysubstituted tetrahydroisoquinoline derivative, which takes diazonium, oxygen alkyl amide, arylamine, o-acrylate benzaldehyde and potassium tert-butoxidea as raw materials, takes chiral phosphoric acid, an acid additive and dichloro(p-cymene) ruthenium as catalysts, takes an organic solvent as a solvent, and takes a molecular sieve as a water absorbing agent; the above materials are reacted, a solvent is removed to obtain crude product, after column chromatography, the high-diastereomeric selectivity high-optical purity tetrahydroisoquinoline derivative pure product can be obtained. The synthetic method has the advantages of easy and simple acquisition of raw materials, safe and easy operation, and the product has the advantages of high atom economy, high yield and high selectivity.