152 results about "Allyl chloride" patented technology

The invention relates to the field of material science, and discloses a preparation process of a softwood rubber metal composite material, which comprises the following steps: S1, cleaning the surfaces of metal, softwood and rubber; s2, plasma treatment is conducted on the surfaces of the metal, the cork and the rubber; s3, preparing a modified chemical coupling agent, and coating the modified chemical coupling agent on the surfaces of metal, cork and rubber; s4, hot press molding is carried out, and metal, rubber and cork are stacked and subjected to hot press treatment; and S5, cooling treatment is conducted, and the cork rubber metal composite material is obtained. The modified chemical coupling agent is prepared from the following components in percentage by weight: 70 to 80 percent of 3-methyl propyl triethoxy silane; 10 to 20 weight percent of diisocyanate-based silicone oil; 5 to 10 wt% of polyethylene glycol; and 2-5 wt% of dimethyl diallyl ammonium chloride. The interface bonding strength of the softwood rubber metal composite material is remarkably improved, and the overall mechanical performance is enhanced.

The invention belongs to the technical field of preparation of blocking removers, and particularly relates to a composite chelating blocking remover for an oil field and a preparation method of the composite chelating blocking remover. The composite chelating blocking remover for the oil field is prepared from the following raw materials in percentage by mass: 7 to 9 percent of 1-butyl-3-methylimidazole dodecyl sulfonate, 5 to 7 percent of erucamide propyl hydroxypropyl sulfobetaine, 3 to 4 percent of di-(2-ethylhexyl) sodium sulfosuccinate, 4 to 5 percent of ethylenediamine di-o-hydroxyphenylacetic acid, 5 to 7 percent of N, N '-di (2-hydroxybenzyl) ethylenediamine-N, N'-bis (2-hydroxybenzyl)-N, N '-bis (2-ethylhexyl)-N, N'-bis (2-hydroxybenzyl)-N, N '-bis (2-hydroxybenzyl)-N, N'-bis (2-hydroxyphenyl)-N, N '-bis (2-hydroxyphenyl)-N, N'-bis (2-hydroxyphenyl)-N The cleaning agent is prepared from the following components in percentage by weight: 3 to 4 percent of N, N '-diacetic acid, 2 to 3 percent of O-(3-(benzyloxy) propyl) hydroxylamine, 1 to 2 percent of heptadecenyl hydroxyethyl imidazoline quaternary ammonium salt, 1 to 1.5 percent of dimethyl diallyl ammonium chloride homopolymer and the balance of water. The composite chelating blocking remover for the oil field has excellent scale dissolution rate and paraffin inhibition rate when being applied to complex scale blocking removal of the oil field.

The invention provides a modified chitosan flocculant for slime water treatment. The modified chitosan flocculant is prepared from the following raw materials: chitosan, dimethyl diallyl ammonium chloride, acrylamide, acetic acid and potassium persulfate. The invention also provides a preparation method of the modified chitosan flocculant for slime water treatment. The preparation method comprises the following steps: dissolving chitosan in a dilute acetic acid solution with the mass concentration of 60%, and stirring; adding acrylamide and dimethyl propyl chloride cyclic amine into the mixed solution, uniformly stirring, adding a potassium persulfate solution with the mass concentration of 4%, and introducing nitrogen for 20 minutes; then carrying out microwave reaction, and cooling to room temperature after the reaction is completed; adding absolute ethyl alcohol, centrifuging for 10 minutes, taking out, and continuously soaking in absolute ethyl alcohol for 12 hours, so as to obtain a final insoluble substance which is a graft polymer CS-g-ADM; and drying the polymer in a drying box at 105 DEG C until no weight loss occurs, and then grinding and storing. The flocculating agent disclosed by the invention has relatively good flocculability.

The invention discloses a stable curing material of high-expansibility heavy metal polluted clay and a preparation method of the stable curing material, belongs to the technical field of engineering materials and environmental engineering, and is used for solving the technical problems that in the prior art, all curing components in the stable curing material are poor in binding property and poor in adsorbability to polluted heavy metal elements. The preparation method comprises the following steps: synthesizing an intermediate A from composite carbide slag pellets, a modified adhesive, an alkaline excitation material, dead burned magnesium oxide, metakaolin, polyvinyl alcohol, chlorocyclopropane and methyltrimethoxysilane, reacting allyl bromide with methyl trichlorosilane to obtain allyl chlorosilane, reacting the intermediate A with allyl chlorosilane to obtain the modified calcium carbide slag pellets. The modified adhesive with high viscosity and strong adsorbability is obtained, the fly ash, the modifier and the carbide slag are mixed, and high-strength and high-stability composite carbide slag pellets are obtained through spheroidizing treatment and high-temperature calcination, so that the prepared stable curing material has the advantages of being excellent in adsorption curing performance and good in overall stability.

The invention discloses a preparation method and application of a bio-based zinc adenine salt environment-friendly PVC heat stabilizer, and belongs to the field of fine chemical synthesis and plastic additive application. The nitrogen-containing organic metal heat stabilizer adenine zinc complex is prepared by taking adenine and zinc acetate as main raw materials through a one-step method. The method is simple and environment-friendly in preparation process, easily available in raw materials and suitable for industrial production. The prepared heat stabilizer zinc adenine is used as a heat stabilizer, can effectively absorb hydrogen chloride generated by PVC thermal decomposition, and can replace allyl chlorine atoms, so that the heat stability of a PVC product is improved, PVC has more excellent heat stability, and the heat stabilizer is expected to replace a traditional commercially available heat stabilizer.

The invention discloses an antistatic polyester fiber and a preparation method thereof, and relates to the field of fibers. When the antistatic polyester fiber is prepared, N, N-dimethylethanolamine reacts with allyl chloride, and then dichloro phthalocyanine silicon is grafted to obtain modified silicon phthalocyanine; polymerizing terephthalic acid, itaconic acid and ethylene glycol, and reacting with fluorescein isothiocyanate and modified silicon phthalocyanine in sequence to obtain modified polyester chips; the preparation method comprises the following steps: reacting phosphonitrilic chloride trimer with 3-hydroxy-5-nitropyridazine, and reducing to obtain a flame retardant; and carrying out melt spinning on the modified polyester chips and a flame retardant, and reacting to obtain the antistatic polyester fiber. The antistatic polyester fiber prepared by the invention has excellent antistatic property, antibacterial property, flame retardance and mechanical property.

The invention belongs to the technical field of oil exploitation, and particularly relates to a clay stabilizer for an oil field as well as a preparation method and application thereof. The preparation method comprises the following specific steps: adding lauryl amine, ethanol and allyl chloride into a reactor, introducing nitrogen, heating, controlling the temperature at 50-60 DEG C, and maintaining the pH value at 7-8; the preparation method comprises the following steps: adding 2-(allyldimethylsilyl) pyridine, 3-(methacrylamido) propyl dimethyl (3-sulfopropyl) ammonium inner salt, 1-vinyl-3-ethylimidazolium bromide, monopotassium phosphate and deionized water in sequence, adjusting the pH value to 7-8, and uniformly stirring; dropwise adding an initiator, heating to 65-70 DEG C when the mixed solution becomes thick after dropwise adding is finished, continuing to react for 4-8 hours, cooling to 30 DEG C or below, adding ethanol, precipitating, filtering and drying overnight to obtain a product, namely the clay stabilizer. The clay stabilizer disclosed by the invention has the advantages of high anti-swelling rate and washing resistance.

The invention relates to the technical field of water treatment, and provides a polymeric coagulant as well as a preparation method and application thereof. The polymeric coagulant is prepared from the raw materials of liquid polyaluminum chloride, the dimethyl diallyl ammonium chloride copolymer, the chitosan-porous carbon nanomaterial and the quaternary ammonium salt modified bentonite, and the liquid polyaluminum chloride and the dimethyl diallyl ammonium chloride copolymer can achieve the effects of adsorption charge neutralization, adsorption bridging and screen cloth sweeping; the quaternary ammonium salt modified bentonite and the chitosan-porous carbon nanomaterial have an adsorption effect, and the four raw materials are polymerized together to jointly play coagulation and adsorption effects, so that the purpose of efficiently removing organic pollutants and suspended solids is achieved. Results of the embodiment show that the polymeric coagulant is suitable for treatment of various wastewater such as sludge water, landfill leachate and domestic sewage, and the removal rate of COD and suspended solids is high.

The invention discloses a synthesis method of allyl phosphonic acid diester. According to the method, phosphorous acid diester and an allyl chloride compound are used as raw materials and react in the presence of a specific transition metal catalyst and alkali under the conditions of normal pressure and 45-60 DEG C to obtain the allyl phosphonic acid diester. The method has the advantages of mild reaction conditions, simple operation, high product yield (90-99%), no by-product, no generation of halogenated alkane gas and easy industrial production, and is suitable for the fields of polymer flame retardants, electronic materials, pesticide and medicine intermediates and the like.

The invention relates to the technical field of water treatment, in particular to a whisker type dication modified tannin-based organic flocculant as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) adding tetrabutylphosphonium bromide into an alkaline solution of tannic acid, and reacting at 50-80 DEG C for 2-4 hours; (2) dispersing the precipitate in water, continuously introducing nitrogen, adding a first free radical initiator at 50-80 DEG C for reaction, then adding dimethyl diallyl ammonium chloride and a second free radical initiator, and reacting for 2-4 hours; and (3) extracting by using a mixed solution of acetone and ethanol to obtain a precipitation product, filtering and washing to obtain the product. The quaternary phosphonium salt and the quaternary ammonium salt which have strong cationic property and good water solubility are grafted to the tannic acid step by step, so that the water solubility and the flocculation effect of the tannic acid are remarkably improved, meanwhile, the biodegradability and the environmental friendliness of the tannic acid are kept, and the technical effects of efficiently removing algae and cooperatively removing algal toxins can be achieved.

The invention relates to the technical field of hydrogel materials, and discloses an oxygen-permeable silicon hydrogel material for contact lenses and a preparation method thereof.The preparation method comprises the steps that ethylene glycol diglycidyl ether and bis (2-chloroethyl) amine hydrochloride are subjected to a ring-opening reaction, and an intermediate product 1, 2-propylene glycol is obtained; carrying out substitution and hydrolysis reaction on the polyalkenyl quaternary ammonium salt and diethyl iminodiacetate to obtain an intermediate product 2, and carrying out quaternization reaction on the intermediate product 2 and chloropropene by utilizing a tertiary amine structure contained in the intermediate product 2 to obtain the polyalkenyl quaternary ammonium salt. And finally, carrying out polymerization reaction on the silicon hydrogel, hydroxyethyl methylacrylate, gamma-(methacryloyloxy) propyltrimethoxysilane and vinyl-terminated dimethyl polysiloxane, putting the obtained product into a contact lens half mold for reaction, and demolding to obtain the oxygen-permeable silicon hydrogel material. The hydrogel material prepared in the invention has good hydrophilic effect and oxygen permeation effect, and can be widely applied to contact lenses.

The invention discloses a preparation method and device for improving selectivity of methallyl chloride, the device adopts two sections of reactors, the first section is a main reactor, and a chlorination reaction is mainly carried out in the first section of reactor; chlorine is quantitatively introduced into the second-section reactor so as to consume residual isobutene at the front end. According to the method disclosed by the invention, the chlorination reaction is carried out by utilizing the two-stage reactor, the ratio of isobutene to chlorine is reasonably controlled, and the generation of polychlorinated by-products is inhibited, so that the main product methyl allyl chloride keeps high selectivity, meanwhile, the complete conversion of isobutene is ensured, and the problem of separation of isobutene and hydrogen chloride in tail gas is avoided. According to the process disclosed by the invention, the selectivity of the methallyl chloride reaches 90%, and the economic benefit of the device is obviously improved.

The invention belongs to the technical field of organic matter synthesis, and particularly relates to a preparation method of 2-(2 '-hydroxy-3'-methallyl-5 '-methylphenyl) benzotriazole, in particular to a preparation method of cresol triazole trisiloxane. The invention relates to a preparation method of 2-(2 '-hydroxy-3'-methallyl-5 '-methylphenyl) benzotriazole, which comprises the following steps: mixing cresol trozole, methyl allyl chloride, Lewis acid and a first polar organic solvent, and carrying out Friedel-Crafts alkylation reaction to obtain the 2-(2'-hydroxy-3 '-methallyl-5'-methylphenyl) benzotriazole. When the 2-(2 '-hydroxy-3'-methallyl-5 '-methylphenyl) benzotriazole is prepared, the conventional Claisen rearrangement reaction is replaced, and the 2-(2'-hydroxy-3 '-methallyl-5'-methylphenyl) benzotriazole is prepared by adopting the Friedel-Crafts alkylation reaction of cresol trozole, so that the safety risk of process operation is reduced.

The invention discloses a super-hydrophobic flame-retardant fiber and a preparation method thereof, and relates to the field of fibers. When the super-hydrophobic flame-retardant fiber is prepared, pretreated polyacrylonitrile is grafted with melamine, then reacts with diallyl chloride phosphite, and then reacts with 5-mercaptosalicylic acid to prepare modified polyacrylonitrile; the preparation method comprises the following steps: reacting silicon dioxide with tetramethyl guanidino propyl trimethoxy silane to prepare modified silicon dioxide; modified polyacrylonitrile and modified silicon dioxide are blended and spun, finally, acrylamide and perfluorooctyl ethylene are used for finishing, and the super-hydrophobic flame-retardant fiber is prepared. The fiber prepared through the method has excellent hydrophobicity, flame retardance, antibacterial property and ultraviolet resistance.

The present invention discloses a preparation method and application of a rust-resistant polycarboxylate water reducer, including an imidazoline derivative preparation step: mixing alkyl N-hydroxyethyl imidazoline with allyl chloride and adding it to a reactor, and adding sodium hydroxide, sequentially performing substitution and dehydration reactions to obtain an imidazoline derivative; a p-isopropenylphenol polyalkoxy ether preparation step: taking p-isopropenylphenol into an autoclave, under high pressure conditions, raising the reaction temperature, adding ethylene oxide and propylene oxide to obtain p-isopropenylphenol polyalkoxy ether; a rust-resistant polycarboxylate water reducer preparation step: mixing p-isopropenylphenol polyalkoxy ether, an imidazoline derivative and deionized water and adding them to a reaction device, heating and stirring to generate a polyether monomer, then adding acrylic acid and an oxidant, and finally sequentially adding a reducing agent, an initiator, and a chain transfer agent, and neutralizing to obtain a rust-resistant polycarboxylate water reducer. The rust-resistant polycarboxylate water reducer prepared by the present invention has good rust-resistant performance and water-reducing performance.

The invention relates to the technical field of engineering plastics, and provides allyl functionalized polyphenyl ether as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing dihydroxy-terminated polyphenyl ether, chloropropene, alkali, a catalyst, a polymerization inhibitor and an organic solvent for reaction to obtain allyl functionalized polyphenyl ether; the catalyst is prepared from a combination of p-toluenesulfonate, iodide and a 1, 3, 2-diazaphosphoropentene substance; the organic solvent is a mixed solvent of a polar solvent and a non-polar solvent. Under the synergistic action of various catalysts, the reaction of chloropropene and the terminal hydroxyl of the dihydroxyl-terminated polyphenyl ether is realized, and the obtained allyl functionalized polyphenyl ether is high in unsaturation degree and high in crosslinking density after curing, so that the allyl functionalized polyphenyl ether shows more excellent performance. The allyl functionalized polyphenyl ether prepared by the invention is an ideal matrix resin material for high-frequency and high-speed electronic products, and has a wide application prospect.

The application relates to a preparation method of BOPP waste discharge adhesive tape and belongs to the technical field of adhesive tape. BOPP raw materials, an anti-blocking agent and color master batch are uniformly stirred and mixed, then are sent into an extruder for extrusion and chilling forming; the formed adhesive tape is longitudinally stretched, transversely stretched, pulled, subjected to surface corona treatment, wound, subjected to aging treatment, cut and packaged to obtain the BOPP waste discharge adhesive tape; the anti-blocking agent is prepared through polymerization reaction, centrifugal separation and drying by using a methacrylate, a methallyl nickel chloride dimer, 4-vinylbenzocyclobutene, a mercapto-beta-cyclodextrin and an initiator; the prepared BOPP waste discharge adhesive tape has excellent mechanical properties, low light transmittance and good light shielding performance.

The invention discloses epichlorohydrin and a preparation method thereof. Comprising the following steps: feeding a mixed solution containing chloropropene, hydrogen peroxide and a nonionic surfactant and a titanium silicalite molecular sieve TS-1 catalyst in a fixed bed reactor at a mass space velocity of 0.5-10h <-1 >, and reacting at 20-90 DEG C to obtain the epichlorohydrin. The dosage of the catalyst is 0.1-10 wt% of the chloropropene; the nonionic surfactant is selected from at least one of alkyl glucoside, fatty glyceride, fatty acid sorbitan, polysorbate, polyoxyethylene fatty alcohol ether and nonylphenol polyoxyethylene ether; the molar ratio of the hydrogen peroxide to the nonionic surfactant is (1-50): 1; the molar ratio of chloropropene to hydrogen peroxide is (1-10): 1. The nonionic surfactant is added to promote mixing of the organic phase and the water phase, a large amount of solvent does not need to be added in a traditional process, and a large amount of energy consumption such as solvent evaporation and recovery is avoided; the conversion rate of hydrogen peroxide is greater than 95%, and the selectivity of epoxy chloropropane is 95-99%.

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method of an environment-friendly stabilizer for a high-calcium PVC (polyvinyl chloride) product, which comprises the following steps: modifying calcium acetylacetonate by using an aluminate coupling agent to obtain modified calcium acetylacetonate as an auxiliary stabilizer; the environment-friendly stabilizer is obtained by mixing a calcium salt main stabilizer, namely calcium glycol maleate, a zinc salt main stabilizer, namely zinc glycol maleate, modified calcium acetylacetonate and Fischer-Tropsch wax according to a mass ratio of 15: 5: 8: 2. Through synergistic interaction of calcium acetylacetonate and a calcium-zinc main stabilizer, better thermal stability is achieved, in the reaction process of calcium acetylacetonate and allyl chloride on a PVC macromolecular chain, a PVC matrix is coated with modified calcium acetylacetonate, then heavy calcium carbonate and the PVC matrix are combined together through an aluminate group on an aluminate coupling agent, and the PVC matrix has good thermal stability. The dispersing effect of the heavy calcium carbonate and the PVC matrix is improved, and the effect of a compatilizer is achieved.

The invention belongs to the technical field of oil exploitation, and particularly relates to a fracturing fluid thickening agent as well as a preparation method and application thereof. The preparation method comprises the following steps: adding aminomethane tripropionic acid, ethanol and allyl chloride into a first reactor, carrying out a heat preservation reaction, and carrying out reduced pressure distillation to obtain a first functional monomer; adding 3-amino-1, 5-naphthalene disulfonic acid disodium salt, ethanol and allyl chloride into a second reactor, carrying out a heat preservation reaction, and carrying out reduced pressure distillation to obtain a second functional monomer; adding acrylamide, 1, 5-hexadiene-3, 4-diol, 3-[(3-acrylamidopropyl) dimethylammonium] propionate, a first functional monomer, a second functional monomer, monopotassium phosphate and water into a third reactor, dropwise adding an initiator, carrying out heat preservation reaction, adding ethanol, separating out precipitate, centrifuging to obtain a solid, and drying overnight to obtain the thickening agent. The thickening agent provided by the invention has the advantages of high apparent viscosity, strong shear resistance and strong antibacterial ability.

The application discloses a kind of adsorptive control materials for tunnel hole slag stone powder and application.The adsorptive control material is mixed by surface active component, complex component, anti-mud component three components according to 3-7:1:0.5-5 mass ratio;The surface active component is one or more of dodecyltrimethylammonium chloride, dodecyl dimethyl benzyl ammonium chloride, didodecyltrimethylammonium chloride;The complex component is one or more of sodium silicate, sodium hexametaphosphate;The anti-mud component is one or more of polyethylene glycol, β-cyclodextrin, dimethyl diallyl ammonium chloride.The adsorptive control material can improve the adsorption of tunnel hole slag stone powder, ensure the working performance of concrete.

The invention discloses a furanol production process using a byproduct as a solvent, firstly carrying out an etherification reaction, reacting with catechol, methallyl chloride, sodium carbonate and a solvent as raw materials, wherein the solvent is composed of ethylene glycol monomethyl ether and 2,5-dimethyl-2-hexanol, and the mass ratio of 2,5-dimethyl-2-hexanol is 0-80%; then carrying out a cyclization reaction, distilling off the etherification solvent, then adding xylene and a catalyst, and reacting to obtain furanol. The present invention separates the byproduct 2,5-dimethyl-2-hexanol from the etherification liquid after the etherification reaction, and circulates back to the etherification reaction to use as a solvent. This process is a comprehensive utilization of the byproduct 2,5-dimethyl-2-hexanol, which can replace all or part of the traditional ethylene glycol monomethyl ether solvent, saving production costs; and the byproduct 2,5-dimethyl-2-hexanol can also be used as an extraction solvent for phenol recovery, fully utilized, and environmentally friendly.

The invention discloses a novel C2 symmetric chiral bisamide ligand and a preparation method and application thereof, the ligand has a structure as shown in # imgabs0 #, Ar is aryl, the relative positions of two sulfur in the general formula are different, * represents a chiral center, R is 4-methylbenzyl, 4-bromobenzyl, 2, 6-dimethylbenzyl, methyl or benzyl, and n represents 1 or 2. Dithiophenol and (2S, 3S)-2, 3-diphenylaziridine react to obtain an intermediate, and the intermediate and nitrogen-substituted chiral cyclic amino acid or 2-diphenylphosphinobenzoic acid are subjected to dehydration condensation to obtain various ligands with novel structures. A catalyst formed by complexing the ligand and an allyl palladium chloride dimer can be used as a chiral ligand for efficiently catalyzing an asymmetric allyl alkylation reaction.

The invention relates to the technical field of oil and gas field development, and particularly discloses an environment-friendly nano microemulsion retarded acid and a preparation method thereof, the environment-friendly nano microemulsion retarded acid comprises: a water phase, which is an acid-containing aqueous solution; the modified porous nano silicon dioxide powder has strong adsorbability and response release property; the retarder is formed by polymerizing acrylamide, dimethyl diallyl ammonium chloride, N-vinyl pyrrolidone, perfluoroalkyl acrylate and perfluoropolyether acrylate under the action of an initiator; an oil phase; an emulsifier; an emulsion stabilizer; and an iron ion stabilizer. The invention has the beneficial effects of high acid utilization rate, high acidity, multi-stage retarding, good acid etching effect, small damage, high acidification transformation efficiency, good safety and environmental protection property, 100-300nm emulsion particle size, good stability and no demulsification and layering after being placed at room temperature for 30 days, and the effective components of the acid liquor are wrapped by the microemulsion.

The invention provides an inorganic matter and cationic organic matter compounded clay stabilizer for water injection, and discloses that trimethyl monoallyl ammonium chloride is used as a raw material, and polymerization in the use process is prevented after a p-benzoquinone polymerization inhibitor is added, so that cationic monomer micromolecules containing double bonds are used as an organic clay stabilizer, and the stability of the organic clay stabilizer is improved. When being used together with the same raw material cationic organic matter with small molecular weight, namely 2-hydroxyethyl trimethyl ammonium chloride, the clay swelling prevention agent has the performance of preventing clay swelling, anti-scouring capability and long-term effect, and has better performance of preventing clay swelling after being compounded with cheap inorganic raw materials, namely aluminum chloride, dipotassium phosphate and industrial ammonium chloride; the prepared clay anti-swelling agent compounded by the inorganic matter and the cationic organic matter not only has excellent capacity of preventing clay swelling, but also has good anti-scouring capacity and good washing resistance, and an innovative demonstration effect is achieved for preventing damage of clay swelling and migration to a reservoir in water injection and improving the water injection recovery ratio.

The invention discloses epichlorohydrin and a preparation method thereof. Comprising the following steps: feeding a mixed solution containing chloropropene, hydrogen peroxide and an ionic surfactant and a titanium silicalite molecular sieve TS-1 catalyst in a fixed bed reactor at the mass space velocity of 0.5-10h <-1 >, and reacting at 20-90 DEG C to obtain the epichlorohydrin. The dosage of the catalyst is 0.1-10 wt% of the chloropropene; the ionic surfactant is selected from at least one of an anionic surfactant, a cationic surfactant and a zwitterionic surfactant; the molar ratio of the hydrogen peroxide to the ionic surfactant is (1-50): 1; the molar ratio of chloropropene to hydrogen peroxide is (1-10): 1. The ionic surfactant is added to promote mixing of the organic phase and the water phase, a large amount of solvent does not need to be added in a traditional process, and a large amount of energy consumption such as solvent evaporation and recovery is avoided; the conversion rate of hydrogen peroxide is greater than 95%, and the selectivity of epoxy chloropropane is 95-99%.

The present disclosure relates to a reactor for preparing allyl chloride. More specifically, the present disclosure relates to a reactor for preparing allyl chloride capable of improving the dispersibility of a raw material and inducing a uniform reaction within the reactor, thereby improving the selectivity and yield of allyl chloride.

The present application belongs to the technical field of wastewater treatment, and discloses a coal slime water treatment agent, a preparation method and application thereof. The coal slime water treatment agent comprises a coagulant aid G and a flocculant F prepared respectively. The coagulant aid G comprises the following components in mass percentage: 3-5% of sodium hypochlorite, 2-4% of water glass, 3-5% of active silicic acid, 1-2% of sodium carboxymethyl starch, and the balance of water, and the total amount of the coagulant aid G is 100%. The flocculant F comprises the following components in mass percentage: 2-5% of sodium alginate, 2-6% of polyethyleneimine, 2-5% of chitosan, 1-4% of hydroxyethyl cellulose, 2-5% of dimethyl diallyl ammonium chloride, 3-6% of tannic acid, and the balance of water, and the total amount of the flocculant F is 100%. When the coal slime water treatment agent is applied, the coagulant aid G is first added to perform micro-treatment and pre-flocculation on the coal slime water, and then the flocculant F is added to perform intensified flocculation, so that the components complement each other, synergistically promote flocculation and sedimentation of suspended matters, and efficient separation of the suspended matters and water is realized.

The invention relates to the technical field of wastewater treatment, and particularly discloses a purification treatment process for liquid crystal panel factory developing liquid waste. The purification treatment process for the liquid crystal panel factory developing solution waste liquid comprises the following steps: S1, adding a composite acid precipitation solution into the developing solution waste liquid, and meanwhile, carrying out ultraviolet irradiation treatment to obtain a suspension; s2, adding an amphiphilic coagulant aid into the suspension, stirring for reaction, and standing; the amphiphilic coagulant aid is an acrylamide-dimethyl diallyl ammonium chloride-glycidyl methacrylate terpolymer, and the amphiphilic coagulant aid is an acrylamide-dimethyl diallyl ammonium chloride-glycidyl methacrylate terpolymer; s3, carrying out centrifugal separation on the solution system after standing in S2 to obtain a tetramethyl ammonium salt solution; and S4, converting the tetramethyl ammonium salt solution into a TMAH solution by using bipolar membrane electrodeionization equipment. According to the treatment process, the purification and removal effect on the photoresist in the waste developing solution is effectively improved, and the recycling reliability of the TMAH is effectively enhanced.

The invention discloses a method for producing a composite water reducing agent capable of realizing resource utilization, which specifically comprises the following steps: mixing isopentenol polyoxyethylene ether, acrylic acid, hydroxyethyl acrylate and water to obtain a mixed solution A, mixing acrylamide, dimethyl diallyl ammonium chloride, sodium methallyl sulfonate and water to obtain a mixed solution B, and mixing the mixed solution B with water to obtain the composite water reducing agent. The mixed solution A and the mixed solution B are mixed and heated, an initiator and a chain transfer agent are added for a reaction, and a modified water reducer solution is prepared; porous graphene is added into the modified water reducing agent solution, ball milling and filtering are conducted, sediment is washed with deionized water and then dried, the composite water reducing agent is prepared, and waste liquid generated in the process is reused for producing the modified water reducing agent solution. The prepared composite water reducing agent is good in water reducing effect, the mechanical property of a cement-based material can be effectively improved, waste liquid generated in production is recycled and reused, the preparation cost of the water reducing agent is reduced, and the situation that the environment is polluted by discharged waste liquid is avoided.