1392 results about "Organic base" patented technology

The invention relates to the technical field of lithium-sulfur batteries, and discloses a sulfonyl ZIF-8 metal organic framework material, a lithium-sulfur battery diaphragm and a preparation method of the lithium-sulfur battery diaphragm. The preparation method of the sulfonyl ZIF-8 metal organic framework material comprises the following steps: dissolving a metal precursor and a mixed ligand in an organic solvent, and carrying out a coordination reaction under the action of organic alkali; solid is collected, washed and dried, and the sulfonic group ZIF-8 metal organic framework material is obtained. The metal precursor is soluble zinc salt; the mixed ligand comprises 2-methylimidazole and an imidazole derivative containing a sulfonic acid group. The sulfo group ZIF-8 metal organic framework material is prepared through a ligand doping strategy and is used for functional modification of the lithium-sulfur battery diaphragm; the shuttle behavior of lithium polysulfide (LiPS) can be effectively inhibited through the electrostatic repulsion effect of sulfonic acid groups and the synergistic effect of high-polarity adsorption sites; and the migration of Li < + > and the conversion efficiency of LiPS are remarkably promoted by an efficient ion transmission network, so that the cycle performance of the lithium-sulfur battery is improved.

The invention relates to the technical field of desertification control, in particular to a desertification control soil sampling detection device which comprises a machine base, machine frames, guide rods, a lifting plate and the like, the top of the machine base is connected with the two machine frames, the machine frames are connected with the guide rods, the guide rods are connected with the machine base, and the two guide rods are jointly connected with the lifting plate in a sliding mode. The rock core drill bit can be driven by the lead screw motor to move downwards, the rock core drill bit drills into soil, the soil enters the drill pipe, the soil is sampled, the drill pipe can be closed by elastic cloth, the through hole can be blocked by a blocking block, leakage of the soil in the drill pipe is avoided, and the soil multi-parameter sensor can be driven by the electric guide rail to move backwards. The probe of the soil multi-parameter sensor is inserted into the drill pipe to detect soil, detection can be carried out without pouring out the soil, detection is carried out automatically, operation is simpler, manpower and time can be saved, and soil of different depths can be detected conveniently.

The invention relates to a copper-molybdenum-titanium etching solution as well as a preparation method and application thereof. The copper-molybdenum-titanium etching solution comprises a main agent, the main agent is prepared from organic acid, a fluorine-containing compound, a surfactant, organic alkali, a corrosion inhibitor, hydrogen peroxide and deionized water. The copper-molybdenum-titanium etching solution provided by the invention does not contain phosphorus, the cost and environmental protection risk in a wastewater treatment link are greatly reduced, and meanwhile, the copper-molybdenum-titanium etching solution contains low fluorine, so that the etching solution has good etching activity, corrosion to equipment is effectively reduced, a powerful guarantee is provided for stable operation of production, and the copper-molybdenum-titanium etching solution is suitable for industrial production. And meanwhile, the safety of an operation environment is improved. Especially, under the condition of low hydrogen peroxide content, the copper-molybdenum-titanium etching solution shows excellent etching performance. In addition, the etching solution also has long copper service life, can effectively inhibit the negative influence of copper ions on the etching performance, prolongs the effective service time of the etching solution in a high copper content state, greatly reduces the replacement frequency of the etching solution, reduces the production cost, and improves the production efficiency.

The invention discloses a method for recovering bisphenol A and cyclic carbonate by coupling polycarbonate with an epoxy compound, and belongs to the technical field of depolymerization and recovery of high polymer materials. The method comprises the following steps: constructing a reaction system comprising bisphenol A polycarbonate, an epoxy compound, Lewis acid, alkali and ionic liquid; placing the reaction system at the temperature of 70-150 DEG C in an air atmosphere, and carrying out a reaction for more than or equal to 10 min to obtain bisphenol A and cyclic carbonate; wherein the epoxy compound comprises at least one of styrene oxide, 1, 2-epoxypropane, 1, 2-epoxybutane, 1, 2-epoxydodecane, n-butyl glycidyl ether, epoxy propyl phenyl ether, 2-toluene glycidyl ether and 3-(1-naphthyloxy)-1, 2-epoxypropane, and the epoxy compound comprises at least one of styrene oxide, 1, 2-epoxypropane, 1, 2-epoxybutane, 1, 2-epoxydodecane, n-butyl glycidyl ether, epoxy propyl phenyl ether, 2-toluene glycidyl ether and 3-(1-naphthyloxy)-1, 2-epoxypropane; the alkali is inorganic alkali or organic alkali; the method is mild in reaction condition, high in resource utilization efficiency, good in operation safety and high in chemical monomer yield, and has a wide application prospect in the field of waste plastic treatment.

The invention discloses an immobilized organic base catalyst and a preparation method and application thereof, the immobilized organic base catalyst comprises functionalized activated carbon, the functionalized activated carbon has a Bronsted base site comprising an organic Bronsted base molecular structure, the organic Bronsted alkali molecular structure is connected to the surface of the functionalized activated carbon through a covalent bond. The immobilized organic base catalyst is a heterogeneous active carbon-based immobilized organic # imgabs0 # base catalyst, and has the advantages of low preparation cost, high reaction activity, good stability and the like.

The present application provides a device and method for preparing methyl isoamyl ketone. In the method, acetone and isobutyraldehyde are reacted under the catalysis of a condensation catalyst and a hydrogenation catalyst in the presence of hydrogen to obtain the methyl isoamyl ketone, wherein the condensation catalyst comprises an organic base; and the molar ratio of the condensation catalyst to the isobutyraldehyde is (0.02-0.15):1. The MIAK obtained by the method has at least one of the advantages of high conversion rate, simple process flow, low production cost, easy separation of side reaction products, and high product purity.

The invention relates to the technical field of non-ferrous metallurgy, and discloses a dissolution method of high-iron-monohydrate-boehmite type bauxite. The method comprises the following steps: (1) preparing mixed ore pulp from high-iron monohydrate bauxite, sodium aluminate circulating mother liquor and an additive; the additive is one or a mixture of more of organic alkali, carboxylic acid and amino acid; (2) the mixed ore pulp is subjected to ultrasonic treatment and then heated to 190-280 DEG C for a dissolution reaction, dissolution slurry and dissolution residues are obtained, the dissolution residues are subjected to magnetic separation and recovery, and iron ore concentrate is obtained; the power of the ultrasonic treatment is 200 to 300W, and the time of the ultrasonic treatment is 30 to 50 minutes. According to the method, the problem that iron minerals are difficult to separate due to silicon minerals in the dissolution process of the high-iron monohydrate bauxite is solved. The method is simple in process, low in production cost, low in equipment requirement and good in industrialization prospect.

The invention provides a thioether oxidation catalyst, a preparation method thereof and a preparation method of pyroxasulfone. The preparation method comprises the following steps: S1, preparing a selenium source and a first solvent into a first solution; s2, adding a Lewis acid source into the first solution, and performing first mixing to obtain a second solution; s3, adding an organic alkali ligand source into the second solution, and performing second mixing to obtain a third solution; and S4, carrying out solvothermal reaction on the third solution at 100-150 DEG C to obtain the thioether oxidation catalyst. A selenium source, a Lewis acid source and an organic alkali ligand source are subjected to a combined reaction according to a specific sequence and conditions, and finally the inorganic-organic hybrid selenite catalyst with a special structure is formed under a solvothermal condition. The obtained catalyst is high in active atom utilization rate and strong in reactant molecule adsorbability, is beneficial to deep oxidation of reactants, accelerates oxidation of thioether into sulfone, and improves reaction selectivity and production efficiency.

The invention discloses a polyarylamine hole transport material, a synthesis method thereof and a perovskite solar cell, and belongs to the field of chemical and energy materials. The synthesis method comprises the following steps: mixing arylamine, aryl halide, a palladium catalyst, a phosphine ligand and organic alkali, carrying out a reflux reaction, and then adding an end-capping reagent to terminate the reaction; and settling the product in methanol, carrying out suction filtration to obtain a solid, and then carrying out Soxhlet extraction. By adjusting the activity of the reaction intermediate, two continuous C-N cross-coupling catalytic cycles are achieved, in the first catalytic cycle, high-reaction-activity arylamine and aromatic halide are coupled to generate a low-activity bifunctional secondary arylamine intermediate, the intermediate is kept in a dormant state in the first catalytic cycle, and after primary arylamine is completely consumed, the intermediate is separated from the primary arylamine, and the secondary arylamine is separated from the primary arylamine. And the secondary arylamine intermediate and the aromatic halide are subjected to coupling polymerization, so that accurate synthesis of a series of polyarylamine with narrow molecular weight distribution is realized. The polyarylamine can be used as a hole transport material to construct a perovskite solar cell, adjust interface hole extraction and promote perovskite growth.

The invention provides a VOCs catalyst as well as a preparation method and application thereof, and belongs to the field of atmosphere prevention and control. The invention provides a VOCs (Volatile Organic Compounds) catalyst. The VOCs catalyst comprises a modified ZSM-5 zeolite molecular sieve and active metal and / or oxide of the active metal loaded on the modified ZSM-5 zeolite molecular sieve, the preparation method of the modified ZSM-5 zeolite molecular sieve comprises the following steps: mixing a ZSM-5 zeolite molecular sieve and an organic alkali solution, and carrying out a hydrothermal reaction to obtain an organic alkali-loaded ZSM-5 zeolite molecular sieve; and roasting the ZSM-5 zeolite molecular sieve loaded with the organic alkali, and removing the organic alkali to obtain the modified ZSM-5 zeolite molecular sieve, the organic alkali solution is a tetrapropylammonium hydroxide solution.

The invention discloses a preparation method of an ultra-pure hydroxylamine aqueous solution, and relates to the field of organic chemistry and chemical industry production. The method comprises the following steps: reacting electronic-grade hydroxylamine salt with organic alkali in a proper solvent to generate hydroxylamine, then separating and removing salt and unreacted hydroxylamine in a reaction solution through a mercaptopyridine ion exchange modified membrane, and finally concentrating the solution into 50wt% ultra-high-purity hydroxylamine aqueous solution by adopting reduced pressure evaporation or multi-effect evaporation. The process has the characteristics of high efficiency, environmental protection, simplicity and easiness in operation, effectively improves the purity, yield and separation efficiency of hydroxylamine, and meets the strict requirements of electronic grade hydroxylamine on purity and metal ion content.

The invention provides a photoacid generator, a preparation method thereof and a photoresist based on the photoacid generator. The photoacid generator is 4-alkyl-N-hydroxyl naphthalimide fluoroalkyl sulfonate, and the molecular structural formula of the photoacid generator is # imgabs 0 #, and in the formula, R is alkyl. The preparation method of the photoacid generator comprises the following steps: S1, dissolving 5-alkyl acenaphthene in a first solvent, heating, adding potassium permanganate in the heating process, then heating to reflux for reaction, and after the reaction is finished, purifying to obtain 4-alkyl-1, 8-naphthalic anhydride; s2, dissolving the 4-alkyl-1, 8-naphthalic anhydride, hydroxylamine hydrochloride and a first inorganic base in a second solvent for reaction, and after the reaction is finished, purifying to obtain 4-alkyl-N-hydroxy-1, 8-naphthalic imide; and S3, adding the 4-alkyl-N-hydroxy-1, 8-naphthalimide and an organic alkali into a third solvent, dropwise adding fluoroalkyl sulfonic anhydride, heating to react after dropwise adding is completed, and purifying after the reaction is completed to obtain the 4-alkyl-N-hydroxy-1, 8-naphthalimide. The photoresist based on the photoacid generator provided by the invention is large in ADR, and the negative photoresist development defect and the standing wave are improved.

The invention belongs to the technical field of medicine synthesis, and particularly relates to a method for converting OAB-14 crystal form C into crystal form A. The method for converting the OAB-14 crystal form C into the crystal form A comprises the following steps: (1) adding a crystal form C sample of OAB-14 into a reaction container, adding a solvent and alkali, and uniformly stirring; the alkali is organic alkali or inorganic alkali; (2) heating to reflux, and keeping the temperature and refluxing; and (3) cooling, crystallizing, performing suction filtration, and directly drying the obtained filter cake or adding water, pulping, performing suction filtration, and drying the filter cake again to obtain the OAB-14 crystal form A. The method for converting the OAB-14 crystal form C into the crystal form A is simple in process and high in conversion rate.

The invention discloses a high-efficiency fluorite collecting agent and a preparation method thereof. The high-efficiency fluorite collecting agent comprises the following raw materials in parts by weight: 20-45 parts of oleic acid with different iodine values, 5-10 parts of an amidate surfactant, 3-5 parts of inorganic alkali or organic alkali and 10-25 parts of a low-carbon-chain alcohol compound. The amidate surfactant is a nonionic surfactant, the structural general formula of the amidate surfactant is R1-C (O) NH (CH2) nCH2-R2, in the formula, R1 is a hydrocarbon chain containing 12-18 carbon atoms, n is equal to 5-6, and in the formula, R2 is a functional group with a hydrogen bond effect. According to the fluorite collecting agent, the efficient recovery rate of fluorite is guaranteed, meanwhile, the grade of fluorite concentrate is improved to a certain degree, the using amount of the collecting agent is reduced, and the problem that the fatty acid fluorite collecting agent is poor in fluorite concentration efficiency is solved.

The invention discloses a synthesis method of a 9, 9-di-n-octylfluorene copolymer, which comprises the following steps: under the action of an N-heterocyclic carbene palladium complex and organic alkali, reacting 9, 9-dioctylfluorene-2, 7-bis (boronic acid pinacol ester) with 2, 5-dichloropyridine to obtain the 9, 9-di-n-octylfluorene copolymer, and reacting the 9, 9-di-n-octylfluorene copolymer with the boronic acid pinacol ester to obtain the 9, 9-di-n-octylfluorene copolymer. The structure of the N-heterocyclic carbene palladium complex is as shown in a formula (I): # imgabs0 # formula (I); the 9, 9-di-n-octylfluorene copolymer is prepared through catalysis of the N-heterocyclic carbene palladium complex, the 9, 9-di-n-octylfluorene copolymer has the advantage of being high in catalysis efficiency, the 9, 9-di-n-octylfluorene copolymer with high molecular weight and narrow distribution can be obtained, and the problems that a phosphine ligand catalyst is large in toxicity and the like are solved; and the application of the 9, 9-di-n-octylfluorene copolymer in preparation of a hole transport layer of a perovskite solar cell is developed.

The invention relates to a method for catalytically degrading a polyester material by using an ionic liquid and application of the polyester material, and mainly solves the technical problems of high energy consumption, environment unfriendliness and complex process in polyester material recovery research in the prior art. According to the technical scheme, the novel method for catalytically degrading the polyester material through the ionic liquid comprises the steps that the ionic liquid is used as a catalyst, diol is used as an alcoholysis agent, polyester is catalytically degraded, and the ionic liquid has the following general formula: A + B-(I); in the formula, A < + > is an organic alkali cation, and B <-> is an alkoxy anion, the problem is well solved, and the method can be applied to polyester recovery industry.

An improved solvent system for the formulation and application of N-alkyl thiophosphoric triamide urease inhibitors. These formulations provide safety and performance benefits relative to existing alternatives and enable storage, transport and subsequent coating or blending with urea based or organic based fertilizers. These formulations are comprised primarily of environmentally friendly aprotic and protic solvents (particularly dimethyl sulfoxide and alcohols / polyols) to stabilize the urease inhibitor.

The invention discloses a polymer resin and a preparation method thereof, an optical lens and intelligent glasses, and relates to the technical field of resin materials. The polymer resin comprises a thioamide group, a thioether group and an aromatic group, and is prepared from the following raw materials: thiocyanate, a sulfhydryl compound, an organic base catalyst and a solvent. The oxidation resistance and the stability of the polymer resin can be improved, and the polymer resin also has high refractive index performance.

The invention relates to a high-orientation polyimide fiber based on liquid crystal spinning and a preparation method of the high-orientation polyimide fiber. Rigid anhydride is used as a raw material to prepare para-diacid diester, and the para-diacid diester and rigid diamine are polymerized to prepare a full-para polyamic acid ester solution with lyotropic liquid crystal characteristics; and then adding an organic base catalyst to prepare a spinning solution, and carrying out high-temperature dry spinning, catalytic cyclization and high-temperature heat treatment to prepare the high-orientation polyimide fiber. According to the invention, an organic base catalyst is introduced into a spinning solution with lyotropic liquid crystal characteristics, and the high orientation of a liquid crystal domain along a fiber axis is realized by virtue of the shearing and fluid stretching effects of spinneret orifices; then, on the basis of high-temperature dry spinning and catalytic cyclization reaction, structural transformation from polyamide acid ester to polyimide is achieved while curing forming of the fiber is promoted, locking of an oriented structure and densification of the interior of the fiber are achieved, and therefore the stability and uniformity of the fiber are guaranteed; the method has great application potential in the field of extreme special environments such as aerospace.

The invention relates to a preparation method of 2-(2-amino-5-bromo-benzoyl) pyridine, which comprises the following steps: (1) dissolving 2-amino-5-bromobenzoic acid in an organic solvent A, adding dimethyl hydroxylamine hydrochloride, a condensing agent and organic alkali, and carrying out condensation reaction to obtain 2-amino-5-bromo-N-methoxy-N-methyl benzamide; and (2) in an organic solvent B, enabling 2-bromopyridine to react with the 2-amino-5-bromo-N-methoxy-N-methyl benzamide in the step (1) under the action of an organic strong base, so as to obtain the 2-(2-amino-5-bromo-benzoyl) pyridine. The preparation method provided by the invention has the advantages of easily available synthesis raw materials, low cost, simple synthesis route, safe and controllable synthesis process and simple post-treatment method, has no amplification effect, and is suitable for industrial large-scale production.

The invention relates to the technical field of etching solutions, in particular to the field of IPC C23F, and more particularly relates to a double-agent copper-molybdenum-titanium etching solution and a preparation method thereof. Comprising a main agent and an auxiliary agent, and the main agent comprises the following components in parts by weight: 8-15 parts of an oxidizing agent, 4-13 parts of first organic acid, 1-3 parts of first inorganic acid, 1-3 parts of first organic alkali, 1-4 parts of a first surfactant, 0.05-0.5 part of a first fluorine-containing compound, 0.01-1 part of a first corrosion inhibitor and 60-80 parts of water; and the auxiliary agent comprises the following components: 10-60 parts of second organic acid, 2-10 parts of second inorganic acid, 1-5 parts of second organic alkali, 0.05-0.5 part of a second fluorine-containing compound, 1-5 parts of a second surfactant, 0.5-2 parts of a second corrosion inhibitor and 50-80 parts of water. The problems of large etching rate fluctuation, chamfering, vertical angle, precipitation, crystallization and the like in the etching process of the etching liquid are solved.

The invention discloses an anti-collapse photoresist flushing fluid and a photoetching method for forming a photoresist pattern, the anti-collapse photoresist flushing fluid comprises a nonionic surfactant, an anionic surfactant, an organic alkali and a solvent, the nonionic surfactant is # imgabs0 #; and the anionic surfactant is isooctyl alcohol ether phosphate ester or isooctyl alcohol polyoxyethylene ether phosphate ester. According to the invention, the alkynediol nonionic surfactant has the effect of double tails with interconnected bipolar groups and has a synergistic effect with the anionic surfactant, so that the surface tension of the flushing fluid is reduced while the activity of the surfactant is improved, thereby reducing the internal stress of photoresist lines and preventing collapse; bis-OH in the alkynediol and incompletely developed free carboxylic acid in the photoresist are subjected to esterification reaction to generate a hydrophobic material surface layer, so that the line edge roughness and the image surface roughness are improved; organic alkali and functional groups on the surface of the photoresist are subjected to cross-linking reaction, so that the mechanical property is improved, and collapse is further prevented.

The invention relates to an indole hair dye based on air oxidation. The hair dye provided by the invention is characterized in that a chemical strong oxidant is not added, and oxygen in air can be catalyzed by using an air oxidation catalyst and a metal ion catalyst to naturally finish the oxidative polymerization process of indole substances (natural bionic melanin precursor substances). The used reducing agent is a combination of cysteine and a derivative thereof and sodium sulfite and a derivative thereof, the oxidative polymerization speed of indole substances can be controlled, and finally generated melanin macromolecules are embedded in hair cortex, so that white hair is obviously blackened. The natural oxidation process does not need hydrogen peroxide, destructive strong base or organic base, so that the use of harmful chemical reagents is reduced, the formula is simplified, the hair dyeing process is milder, potential hazards to hair and scalp are reduced, and the natural oxidation hair dye is safe, environmentally friendly and sustainable.

The invention discloses a kind of high-efficiency and environment-friendly developer for PCB board, and the developer includes the following components by mass: 60-100 parts of organic alkali composition; 30-80 parts of cosolvent; 30-70 parts of defoamer; 40-70 parts of surfactant; 20-50 parts of antioxidant; 15-45 parts of penetrant; 30-50 parts of buffer; 10-20 parts of inhibitor; The invention also discloses a preparation process of high-efficiency and environment-friendly developer for PCB board. The present invention develops PCB board by using organic alkali composition, fully dissolves dry film by ether group, hydroxyl group and amine group, avoids solid precipitation caused by traditional carbonate development, thereby effectively improving the efficiency and quality of PCB development process; penetrant and cosolvent are added at the same time, significantly improving the penetration and dissolution effect of developer on dry film, further improving development efficiency; and with the antioxidant, buffer etc. added therein, the antioxidant capacity of developer and PCB board can be improved, and the stability of developer during use is ensured.

The invention belongs to the field of preparation of ether substances, and particularly relates to a preparation method of perfluoro-2-alkoxy propionyl fluoride and perfluoroalkyl vinyl ether. The preparation method of the perfluoro-2-alkoxy propionyl fluoride comprises the following steps: carrying out addition reaction on acyl fluoride and hexafluoropropylene oxide in a polar aprotic solvent in the presence of an organic base catalyst, a phase transfer catalyst and a phase transfer cosolvent to prepare the perfluoro-2-alkoxy propionyl fluoride, the phase transfer cosolvent is selected from a hexafluoropropylene dipolymer, a hexafluoropropylene tripolymer or 1, 3-bis (trifluoromethyl) benzene. The method provided by the invention can effectively reduce the generation of HFPO polymer by-products, thereby improving the yield of the target product.

The invention relates to a two-agent type copper acid etching solution for a liquid crystal panel as well as a preparation method and application of the two-agent type copper acid etching solution. The etching liquid comprises an etching liquid main agent and an etching liquid auxiliary agent, and the etching liquid main agent comprises the following components in parts by weight: 5-20 parts of hydrogen peroxide; 5-15 parts of an acidic material; 3-10 parts of an organic base; 0.01 to 0.1 part of a corrosion inhibitor; 0.01 to 0.08 part of a chelating agent; 0.3-2 parts of a stabilizer; 60 to 80 parts of deionized water; the etching liquid auxiliary agent comprises the following components: 30-45 parts of an acidic material; 30 to 50 parts of organic base; 0.02 to 0.2 part of a corrosion inhibitor; 0.3-2 parts of a stabilizer; and 40 to 60 parts of deionized water. The chelating agent in the etching solution has double effects of corrosion inhibition and chelation, the pH value of the main agent can be adjusted, the etching environment of the etching solution is stabilized, the service cycle of the main agent in the etching process is prolonged, the etching capability of the two-agent type etching solution can be kept consistent after 48 hours, and the pH value and the hydrogen peroxide content are kept stable.

The invention provides degradation liquid for degrading an unsaturated polyester type wind turbine blade and a degradation and recovery method, and belongs to the technical field of thermosetting resin degradation and resource utilization. The degradation liquid comprises a polar solvent, an alcohol solvent and organic alkali; wherein the mass of the alcohol solvent accounts for 1%-40% of the total mass of the polar solvent and the alcohol solvent, and the mass of the organic base accounts for 0.5%-15% of the total mass of the polar solvent and the alcohol solvent. The polar solvent, the alcohol solvent and the organic base are mixed to form the degradation liquid, the polar solvent, the alcohol solvent and the organic base cooperate with one another, the degradation rate is greatly increased, the organic base serves as a catalyst, corrosivity is low, equipment cannot be damaged, the dosage is small, the degradation liquid can be recycled, various macromolecular substances can be recycled, the degradation process is relatively mild, and the degradation efficiency is high. The performance of the recycled fibers cannot be damaged.

The invention discloses a high-silicon hydrophobic MFI type molecular sieve synthesized by a polyvinylpyrrolidone modified composite template, and a preparation method and application thereof in the field of molecular sieve adsorption materials, and the synthesized high-silicon hydrophobic MFI type molecular sieve adopts a composite template composed of organic bases and organic amines to jointly guide the formation of a crystal nucleus of the molecular sieve. Furthermore, a surfactant polyvinylpyrrolidone is introduced, so that the reaction raw materials are uniformly dispersed in a solution system, a large number of crystal nucleuses are rapidly formed in the early stage, and crystal growth is induced. The microwave reaction avoids the generation of temperature gradient, materials in the medium are heated more uniformly, and the synthesis efficiency and purity of the molecular sieve can be obviously improved. The final result is that the adsorption capacity of the molecular sieve to VOCs is enhanced, the hydrophobicity is enhanced, and the competitive adsorption of water molecules and VOCs molecules is reduced. The device still has a good adsorption effect on VOCs waste gas with high humidity, large air volume and low concentration.

The invention provides a stripping agent composition and a method for stripping a photoresist, wherein the stripping agent composition has good stripping performance and can inhibit corrosion of a lower contact surface during stripping of the photoresist. The stripping agent composition comprises an ether alcohol organic solvent (A), another organic solvent (B), an alkaline substance (C), a substrate corrosion inhibitor (D) and water (E). The other organic solvent (B) does not include an ether alcohol organic solvent. The alkaline substance (C) includes an organic base (C1), an inorganic base (C2), or a combination thereof. Based on 100 parts by weight of the total usage amount of the stripping agent composition, the usage amount of the ether alcohol organic solvent (A) is 7-70 parts by weight, and the usage amount of the base material corrosion inhibitor (D) is more than 0 part by weight and less than 18 parts by weight.

The invention relates to a method and a device for preparing an organic alkali salt of bis (fluorosulfonyl) imide. Ammonia gas, sulfuryl fluoride and liquid organic alkali are adopted as reaction raw materials, and under the condition that no solvent is added or a small amount of solvent is added, the raw materials react through pressurization to generate the organic alkali salt of the bis (fluorosulfonyl) imide. As no solvent is used or only a small amount of solvent is used in the reaction, the chroma of the obtained product is relatively low, and subsequent preparation of lithium bis (fluorosulfonyl) imide as a precursor is facilitated. The invention provides a simple and effective method for reducing the chromaticity of the imidodisulfuryl fluoride salt.